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Artificial Intelligence & Applications
                                             A. S. Md. Kamruzzaman

                                              Binghamton University


Abstract: When an ordinary person thinks                formed on the basis of those programs. The
about a computer, he would immediately say              storing of programs allowed the computer to
that computer is a machine with programs                change function quickly and easily by running
that cannot act like a human brain. If a                a new program. This capability implies that a
computer is asked to make a decision on                 computer might be able to think and learn by
certain aspects, it gives the result. It should be      itself.
impossible for a machine to act like a human                     AI mostly came from the thinking
intelligence. But in fact, when “Deep Blue”             perspective of a computer. A computer can
(International Business Machines [IBM]                  think of itself and can produce decisions.
software) defeated, Gerry Kesparov, World               Dealing with a decision accordingly, a
Champion Chess Grandmaster for six times                computer can exhibit behavior similar to a
within ten rounds, it was a big surprise.. The          person. The key point is some programs are
idea of acting computers like a human being             definitely intelligent. The problem is whether
came from Artificial Intelligence (AI). The             a machine can think or a program running on
most common and important areas of AI are               a computer can be intelligent. Most programs
searching (for solutions), expert systems,              do not perform the same tasks in the same
natural      language      processing,     pattern      way that a person does. An intelligent
recognition, Robotics, machine learning logic,          program should act like a human being and
uncertainty and “fuzzy logic”. AI provides a            exhibit behavior when confronted with a
wide range of ideas of how software can                 similar problem. It is not necessary in the
simulate       human       behavior.      Artificial    same way that the programs actually solve, or
Intelligence deals with a specific kind of              attempt to solve problems that a person
software that relates to human activities. This         would.
is a branch of Computer Science that is                          This paper will provide an overview
mostly concerned with the study and creation            survey of AI while focusing on areas of
of computer systems that exhibit some forms             research and applications. A history of
of intelligence: systems that learn new                 Artificial Intelligence will be given to readers
concepts and tasks. AI has systems that can             to overview ideas. This paper will also provide
reason and draw useful conclusions about the            the visual parts of Artificial Intelligence
surroundings, systems that can understand a             related to human beings. The paper will
natural language or perceive and comprehend             conclude on future perspectives developed by
a visual scene, and systems that perform other          AI.
types of feats that require human types of
intelligence. AI has some terms that should be
understood from the Artificial Concepts such                          I. Introduction
as, intelligence, knowledge, reasoning,
thought, cognition, and learning.
         The Turing machine is considered the
first Artificial Intelligence that works on the              =    =                    AI
stored program computers. During the early
                                                                                  MACHINE
age of computers, there were actually
machines that literally had to be rewired to
solve different problems. Turing’s recognition
was that those programs could be stored as
data in the computer’s memory and could be
executed later. All modern computers are
Figure 1. A robot is taking solution from an   it can be explained by a reduction to
AI machine [1]                                 ordinary physical processes.
                                               Philosophers staked out most of the
       Humankind has given itself the          important ideas of AI, but to make the
scientific name Homo Sapiens which             leap to a formal science required a level
means “man the wise”. This is so               of mathematical formalization in three
because human mental capacities are so         main areas: computation, logic and
important to everyday life. The field of       probability. In computation theorem,
AI attempts to understand intelligent          intractability, reduction, NP (Non
entities. Thus, one reason to study AI is      Probabilistic) completeness and decision
to learn more about humankind. But             theory has a great impact on AI which
unlike Philosophy and Psychology,              arose from math. Psychology plays
which are also concerned with                  another major role in AI. Behaviorism
intelligence, AI strives to build              started discovering animals’ brain and
intelligent entities as well as understand     cognitive psychology started on brain
them. Another reason to study AI is that       possesses and processing information.
these constructed intelligent entities are     Kenneth Craik [2] made a connection
interesting and useful in their own right.     between stimulus and response. The
AI has produced many significant and           three key steps of a knowledge based on
impressive results even at this early          agent; (1) the stimulus must be translated
stage in its development. Although no          into an internal representation; (2) the
one can predict the future in detail, it is    representation is manipulated by
clear that computers with the level of         cognitive processes to derive new
human intelligence would have a huge           internal representations, and (3) these in
impact on the future course of                 turn are retranslated back into action.
civilization. In Figure 1, this idea is        Computer Engineering catalyzed ideas
illustrated visually.                          of AI. The computer has been
         In terms of Philosophy, AI has        unanimously acclaimed as the artifact
inherited many ideas, viewpoints, and          with the best chance of achieving
techniques from other disciplines. The         artificial intelligence. The Turing idea
story of AI began around 450BC [2].            changed the vision of AI. The idea of
"When Plato reported a dialogue in             knowledge representation (the study of
which Socrates asks Euthyphro,"I want          how to put knowledge into a form that a
to know what is characteristics of piety       computer can reason with) was tied to
which makes all actions pious ... that I       language and informed by research in
may have it to turn to, and to use as a        linguistics that was connected to
standard whereby to judge your actions         philosophical analysis language.
and those of other men."[2] Dualism                     Figure 2 can make the ideas more
which is part of the mind (or soul or          clear. It shows how AI could be
spirit), is outside of nature exempts from     described in terms of the environment
physical laws. The mind or brain holds         and an agent. An agent is anything that
the entire world which operates                can be viewed as perceiving the
according to physical laws. It is also         environment through sensors and acting
possible to adopt an intermediate              upon that environment through effectors.
position in which one accepts that the         A human agent has eyes, ears and other
mind has a physical basis, but denies that     organs for sensors, and hands, legs,
mouth, and other body parts for                 field of AI. Newell and Simon wrote a
effectors. A robotic agent substitutes          reasoning program which is capable of
cameras and infrared range finders for          thinking non-numerically, and solved the
the sensors and various motors for the          mind-body problem. The name of
effectors. Software agent has encoded bit       Artificial Intelligence came from the
strings as percepts and actions. A generic      Darmouth Workshop [2].
agent is diagrammed in Figure 2.                        Early enthusiasm great
                                                expectations (1952 – 1969): Newell and
              PERCEPTS
                                                Simon’s [2] early success was followed
                                  SENSORS
                                                up with the General Problem Solver or
                                                (GPS). This was probably the first
ENVIRONMENT
                                                program to embody the “thinking
                                        AGENT   humanly” approach. Starting in 1952 [2],
                ACTIONS                         Arthur Samuel wrote a series of
                                                programs for checkers (draughts) that
                                                eventually learned to play tournament
                                    EFFECTORS
                                                level checkers. He discovered the idea
Figure 2. Agents interect with environments
                                                that computers can only do what they are
through sensors and effectors[2]                told to do. Early work building on the
                                                neural networks of McCulloch and Pitts
                                                also flourished. The work of Winograd
                                                and Cown (1963) showed how a large
                 II. History                    number of elements could collectively
                                                represent an individual concept, with a
        It is difficult to pinpoint an exact    corresponding increase in robustness and
starting date for the invention of AI. It       parallelism.
began to emerge as a separate field of                  A dose of reality (1966 - 1974):
study during 1940 and 1950s when the            Weizenbaum’s ELIZA program (1965)
computer became a commercial reality.           [2] which could apparently engage in
Here is the subdivision of some part of         serious conversation on any topic,
AI history.                                     actually just borrowed and manipulated
        The gestation of AI (1943 -             the sentences typed into it by a human.
1956): Warren McCulloch and Walter              The illusion of unlimited computational
Pitts (1943)[2] drew on three-source            power was not confined to problem-
knowledge of the basic physiology and           solving programs. Early experiments in
function of neurons in the brain. They          machine evolution (new called genetic
proposed a model of artificial neurons in       algorithms) were based on the
which each neuron is characterized as           undoubtedly correct belief that by
being “on” or “off”, with a switch to           making an appropriate series of small
“on” occurring in response to stimulation       mutations to a machine code programs,
by a sufficient number of neighboring           one can generate a program with good
neurons. This work was arguably the             performance for any particular simple
forerunner of both the logicist tradition       task. This idea, then, was to try random
in AI and the connectionist tradition. In       mutations and then apply a selection
the early 1950s, the invention of neural        process to preserve mutations that
network computer opened another new             seemed to improve behavior. During
this time there was certain difficulties.    framework. There have been a number
The first difficulty was that programs       of advances that built upon each other
had insufficient knowledge of their          rather than starting from scratch each
subject matter. Secondly the                 time. Probabilistic Reasoning in
intractability of many of the problems       Intelligent Systems marked a new
that AI programs worked by representing      acceptance of probability and decision
the basic facts about a problem and          theory in AI, following a resurgence of
trying out a series of steps to solve it.    interest in formalism was invented to
The theory of NP (Non Probabilistic)         allow efficient reasoning about the
completeness brought the problem. This       combination of uncertain evidence. This
theory could not able to bring the           approach largely overcomes the problem
solutions for problems. Third difficulty     with probabilistic reasoning systems of
came from fundamental limitations on         the 1960s and 1970s. It also has come to
the basic structures being used to           determined AI research on uncertain
generate intelligent behavior.               reasoning and expert systems. Similar
        Knowledge based systems              revolutions have occurred in robotics,
(1969 - 1979): The widespread growth         computer vision, machine learning
of applications to real-world problems       (including neural networks) and
caused a concomitant increase in the         knowledge representation. A better
demands for workable knowledge               understanding of the problems and their
representation schemes. A large number       complexity properties, combined with
of different representation languages        increased mathematical sophistication,
were developed. Some were based on           has led to workable research agenda and
logic. For example the Prolog language       robust methods perhaps encouraged by
became popular in Europe, and the            the progress in solving the sub problems
PLANNER family [2] in the United             of AI, researchers have also started to
States.                                      look at the “whole agent” problem again.
        Neural Networks (1986 -
present): Some disillusionment was
occurring concerning the applicability
                                                       III. Definition of AI
the expert systems technology derived
from MYCIN- type systems [2]. Many                   AI is a branch of Computer
corporations and research groups found       Science concerned with the study and
that building a successful expert system     creation of computer systems. AI
involved much more than simply buying        exhibits some form of intelligence:
a reasoning system and filling it with       systems that learn new concepts and
rules. Some predicted an “AI Winter” in      tasks, systems that can reason and draw
which AI funding would be squeezed           useful conclusions about the world. AI
severely.                                    systems can understand a natural
        Recent events (1987 - present):      language or perceive and comprehend a
Speech technology and the related field      visual scene, and systems that perform
of level written character recognition are   other types of feats that require human
already making the transition to             types of intelligence. Intelligence is the
widespread industrial and consumer           integrated sum of those feats which
applications. An elegant synthesis of        gives us the ability to remember a face
existing planning programs into a simple     not seen for thirty or more years, or to
build and send rockets to the moon [3].       to try to construct precise and testable
The intelligence requires knowledge. AI       theories of the workings of the human
is not the study and creation of              mind. The rational thought which
conventional computer systems.                govern the operation of the mind, and
         From the perspective of              initiated the field of logic. Acting
intelligence; AI makes machines               rationally is another part of the definition
"intelligent" -- acting, as we would          of AI which means acting so as to
expect people to act. The inability to        achieve one’s goals, given one’s beliefs.
distinguish computer responses from           An agent is something that perceives and
human responses is called the Turing          acts. If we look at AI impressive
test. Intelligence requires knowledge         achievements, it is still impossible to
Expert problem solving - restricting          produce the brain abilities of a three-
domain to allow including significant         year-old child. These include the ability
relevant knowledge [4].                       to recognize and remember numerous
         From a research perspective:         diverse objects in a scene, to learn new
artificial intelligence is the study of how   sounds and associate them with objects
to make computers do things which, at         and concepts and to adopt readily to
the moment, people do better. One way         many diverse new situations.
to measure the success of AI within
computers is to interrogate it by a human
via a Teletype. The computer passes the                 IV. AI Performances
test if the interrogator cannot tell
                                                      AI has performed a vital role in
whether there is a computer or a human
                                              so many fields. Researchers are devoting
at the other end. The computer needs to
                                              their time and effort to establish a good
posses the following capabilities [4].
                                              performance on AI. The features of AI
Natural language processing - to enable
                                              can illustrate some ideas of AI
it to communicate successfully in
                                              performance.
English (or some other human
                                                  Knowledge representation: It is a
language).
                                              design for knowledge–based agent. A
                                              simple logical language for expressing
1. Knowledge representation- to store
                                              knowledge and showing how it can be
information provided before or during
                                              used to draw conclusions about the
the interrogation.
                                              world and to decide what to do. The
2.Automated reasoning – to use the
                                              language is capable of expressing a wide
stored information to answer questions
                                              variety of knowledge about complex
and to draw new conclusions.
                                              worlds. It could be represented several
3. Machine learning – to adapt to new
                                              ways.
circumstances and to detect and
                                                  1.Knowledge Acquisition-
extrapolate patterns.
                                              formalizing knowledge and
4. Computer vision - to perceive objects
                                              implementing knowledge bases are
and robotics to move them about.
                                              major tasks in the construction of large
A computer program has to think like a
                                              AI systems. The hundreds of rules and
human. The interdisciplinary field of
                                              thousand of facts required by many of
cognitive science brings together
                                              these systems are generally obtained by
computer models from AI and
                                              interviewing expert in the domain of
experiment techniques from psychology
                                              application. Representing expert
knowledge as facts or rules is typically a   to confer the ability (or reasons about
tidious and time-consuming process.          one’s own knowledge).
Techniques for automating this                   Expert systems: these constitute
knowledge acquisition process would          most of AI’s commercial success. Expert
constitute a major advance in AI             Systems are programs that mimic the
technology. Knowledge acquisition can        behavior of a human expert. They use
automate in three ways [5]. Firstly,         information that the user supplies to
special-editing systems might be built       sender an opinion on a certain subject.
that allow persons who possess expert        The expert system asks user questions
knowledge about the domain of                until it can identify an object that
application to interact directly with the    matches with the answer from the user.
knowledge bases of AI systems.
Secondly, advances in natural language       For example:
processing techniques will allow humans      Expert: Is it green?
to instruct and teach computer systems       Users: No.
through ordinary conversations. Thirdly,     Expert: Is it red?
AI systems might learn important             Users: Yes.
knowledge from their experiences in          Expert: Does it grow on a tree?
their problem domains.                       User: No.
Representational Formalisms;                 Expert: Does it grow on a cane?
     2. Commonsense reasoning- Many of       User: Yes.
the existing ideas about AI techniques       Expert: Does the cane have thorns?
have been refined on “toy” problems,         User: Yes.
such as problems in the ‘block worlds’,      Expert: It is a raspberry.
in which the necessary knowledge is              Every expert system has two parts
reasonably easy to formalize.                [6]: the knowledge base and the
     Representing Prepositional Attitudes    reference engine. The knowledge base is
[5]-                                         a database that holds specific
                                             information and rules about a certain
San knows that Pete is a lawyer.             subject. The inference engine is the
San does not believe that John is a          information that the user supplies to find
doctor.                                      an object that matches. It has two
Pete wants it to rain.                       branches; 1.Deterministic, and
John fears that Sam believes that the        2.probabilistic.
morning star is not Venus.                       The interface engine can also be
The underlined portions of these             defined as the forward-chaining method
sentences are propositions, and the          and the backward–chaining method.
relations know, believe etc. refer to            The Forward-Chaining Method:
attitudes of agents toward these             Forward-chaining is sometimes called
propositions. A logical formalization for    “data-driven”[6] because the inference
expressing the appropriate relations         engine uses information that the user
between agents and attitudes.                provides to move through a network of
     3. Meta–Knowledge – A good              logical AND and OR until it reaches a
solution to the problem of reasoning         terminal point, which is the object.
about the knowledge of others ought also     In Figure 3, a fruit knowledge base
                                             creates a Forward-chaining interface
engine. The engine would arrive at the                           Understanding commands written in
object apple, when it is given the proper                        standard human languages. NL processor
attributes as shown in Figure 3. A                               extract information from any given
                                                                 input. The core of any NLP system is the
 Round                Grows on trees                             parser. The parser is the section of code
                                                                 that reads each sentence, word by word
                               Does not grow in Deep South
                                                                 and decide what is what. The example of
                                                                 a parser.
                                              Red or yellow          The State Machine Parser: The state-
                                                                 machine parser uses the current state of
                                                                 the sentence to predict what type of word
                           Apple                                 may legally follow. Figure 5 shows the
                                                                 state machine that is a directed graph
Figure 3. Forward-chaining to the object                         that shows the valid transitions from one
apple[9]
                                                                 state to another. For example, a noun can
                                                                 be followed by a verb or a preposition. A
Forward-chaining system essentially                              state machine is shown in Figure 5.
builds a tree from the leaves down to the
root.
    The Backward-Chaining Method:                                                Noun

Backward-chaining is the reverse of
forward-chaining. A backward-chaining                                                           Preposition

inference engine starts with a hypothesis                           Adjective      Verb

(an object) and request information to
confirm or deny it. In Figure 4, the fruit                                         Adverb




                          Try apple                               Figure 5. The state-machine of the restricted
                                                                  grammar [9]
     Grows on trees
                                            Grows on vine
  Is round

                                       Red or yellow
                                                                     Vision and Pattern Recognition:
                                                                 Vision systems can be
                                   Does not grow in Deep South   implemented in two ways. First method
  Is orange
                       Apple                                     tries to reduce an image to the lines that
                                                                 form the outline of each object. This
Figure 4. Backward-chaining to the object apple                  method uses various filters to remove
[9]                                                              information from the image, and contrast
                                                                 enhances to make all parts of the image
                                                                 either black or white. They are called
Question is an apple, applying
                                                                 binary image because every paint in the
backward-chaining inferences to the fruit
                                                                 image is either black or white. Second
knowledge base. As the diagram shows,
                                                                 method attempts to give the computer a
backward-chaining prunes a tree.
                                                                 more humanlike view of the image. This
    Natural Language processing:
                                                                 method gives to the computer
 Natural Language Processing (NLP)
                                                                 information about the brightness of the
tries to make the computer capable of
                                                                 part of the image. It allows the computer
to derive two important features from the    information in a database. Role does not
image that are not possible with a light     require any generalization to be derived
contrast image because of surfaces and       or any high level thinking.
shadows. It is easy to interpret an image         Cognitive learning – This form of
but correctly identifying the objects or     learning requires analyzing, organizing,
features that make up the image. There       and correlating specific pieces of
are several ways to do it. Firstly,          knowledge. The product of this mental
computer can do it by controlled             effort is the creation of class
hallucination [6]. Recognition of object     descriptions. The ability to learn class
is also another issue in the pattern         description is fundamental to the
recognition.                                 creation of a computer that thinks the
     Robotics: There are two types of        way that human does.
robots. Industrial assembly robots are            Logic and uncertainty: Logic lies
used in a controlled environment. It can     at the heart of computer programming. A
perform only programmed task. There          programming language is simply an
are two ways to teach a new task to a        implementation of a special form of
robot:                                       knowledge. One of the most pleasing
                                             aspects of logic is that it is certain.
1.by using teach pendant, or                 Things that are represented by logic are
2.programmed by using a Robotic-             ‘true’ or ‘false’. Resolving or dealing
control language.                            with uncertainty is critical to machine
Teach pendant is a hand-held control         intelligence because it is required for
box that allows an operator to move the      successful interfacing with the real
various joints of the robot. It is linked    world. Fuzzy logic deals with the
through the robot’s main control             evaluation of logical expression that
computer. Moving each joint can do it        contain uncertain values probabilistic
and computer records each position [6].      systems utilizes the probability of the
For complex jobs Robotic Control             occurrence of various events in order to
Language s are used. It is a computer        arrive at an answer [6].
program used to control a robot.                  Appearing human: The idea is to
Autonomous Robots: It is much more           make a computer appear to be like a
complex than industrial robots. It sensors   person. It is completely integrated
that allows to hear and see and              program which appears to be human.
understand natural language and what         The name of this program is ELIZA. If a
the language means. It can also solve        human is compared with a computer
problems. It can be implemented by           (program), the human has the emotions
parallel processing but it is still under    and the personality. In terms of
research.                                    computer, a machine can not act like a
    Machine learning: Two types of           human. The program which is created by
learning: role learning and cognitive        the human being, can do whatever the
learning.                                    programmer wants. It can appear to have
    Role learning is something from          emotions and personality because the
memorization. In terms of computer, it is    programmer built the program with those
a set of instruction programmed in a         functions in it. This way the computer
database, which can easily follow a          shows that it has emotions and
procedure or store some item of              personality.
AI is the field where human brain
          V. Application of AI               and machine talks together. The
                                             importance of AI is very wide. Human
         The distinction between a           brain can be transformed into a machine
computer “user” and a computer               format and all the research is done
“programmer” is that the user provides       through AI. Cognitive Psychology and
new input, or data (words or numbers),       AI are very related. Cognitive
while the programmer defines new             Psychology discusses on human
operations, or programs, as well as new      behavior and AI deals how to transform
types of data [7].                           machine close to human.
     The GPS developed in 1957 by Alan               The invention of supercomputers
Newell and Hervert Simon, embodied a         is one of the great inventions of AI
grandiose vision. A single computer          which changed the view of AI. With a
program that could solve any problem,        combined budget of about one billion
given a suitable description of the          dollars [3], the Japanese are determined
problem GPS caused quite a stir when it      to realize many of their goals, namely, to
was introduced and some people in AI         produce systems that can converse in a
felt it would sweep in a grand new era of    natural language, understand speech and
intelligent machines. It is much easier to   visual scenes, learn and refine their
implement a GPS in steps. There are few      knowledge, make decisions and exhibit
steps which are [7]                          other human traits. The Defense
                                             Advanced Research Projects Agency
a. Describe the problem in vague term        (DARPA) has increased it’s funding for
b. Specify the problem in algorithmic        research in AI. In addition, most of the
    terms.                                   larger high-tech companies such as IBM,
c. Implement the problem in a                DEC, AT&T have their own research
    programming language.                    programs.
d. Test the program on representative
    examples.                                        VII. Future Perspective
e. Debug and analyze the resulting
    program and                                      Lots of plans have taken to
f. Repeat the process.                       improve the research of AI. At the same
The main programming languages used          time, funding is increased to improve its
in AI are Lisp and Prolog. Both have         standing. Researchers are trying to get
features which make them suitable for        the Autonomous Robots which will
AI programming, such as support for list     change the entire AI field.
processing, pattern matching and             : (1) Reducing the time and cost of
exploratory programming. Both are also       development is a big plan for AI.
widely used -Prolog especially in Europe      (2) Allowing students to work
and Japan, and Lisp in the US. This wide     collaboratively is another plan from
use within the field is another reason to    researchers.
choose Lisp or Prolog for AI                         One important research issue is
implementation [8].                          reducing the time and cost in order to
                                             develop such systems. Current strategies
                                             for doing this include the development
         VI. Importance of AI                of authoring tools and creating systems
                                             in a modular fashion. Solving this
problem will be an enormous                   environment but also on the actions of
breakthrough in ITS research, since           other agents. The standard scenario
more systems could be constructed and         involves a set of agents who make their
thus more research into the effectiveness     decisions simultaneously, without
of computer based instruction could be        knowledge of the decisions of the other
performed [9].                                agent.
         AI is trying to discover some
desirable property P; There are number                     VIII. Conclusion
of choices for p which are,
         Perfect rationality: the classical       A computer is a game device to a
notion of rationality in decision theory.     child, but it can be used in different ways
A perfectly rational agent acts at every      depending on the user’s needs.
instant in such a way as to maximize its      Programmers build all kinds of programs
expected utility, given the information it    to satisfy the needs of the growing
has acquired from the environment.            number of users. It will not be surprising
Calculate rationality: the notion of          to utilize computers with highly
rationality that has used implicitly in       developed artificial intelligence
designing logical and decision                capabilities a few years from now to do
theoretical agents. A calculatively           thee tasks. Computers will have the
rational agent eventually returns what        ability to create a program that can
would have been the rational choice at        create another program and thus simulate
the beginning of its deliberation. This is    the behavior of the human brain. The
an interesting property for a system to       best example thus far of these
exhibit because it continues an “in-          capabilities were documented by Deep
principle” capacity to do the right thing.    Blue in a chess game that serves as a
         Bounded optimality: A bounded        technological landmark for the future.
optimal agent behaves as well as              The shear knowledge of a computer
possible given its computational              adapting and functioning faster than the
resources. That is, the expected utility of   human mind though programmed to do
the agent program for a bounded optimal       so by humans is in essence a frightening
agent is at least as high as the expected     reality that needs to be confronted.
utility of any other agent program            Though AI just finished with its period
running on the same machine.                  of infancy, it has ramifications that yet
         Philosophy has also seen a           remain unknown. to everyone. The effort
gradual evolution in the definition of        and research can bring the surprising
rationality. There has been a shift from      innovations that the majority crave and
consideration of act utilitarianism – the     desire but there are also results which
rationality of individual acts – to rule      cannot be forseen when the computer
utilitarianism, or the rationality of         begins to think for itself.
general policies for acting.
         Another area is game theory, a
branch of economics that began                                   References
widespread study of decision theory.
                                              [1] My own Creative picture.
Game theory studies decision problems         [2] Norvis, Peter &Russel, Stuart Artificial
in which the utility of a given action        Intelligence: A modern Approach, Prentice Hall,
depends not only on chance events in the      NJ, 1995
[3] Patterson, Dan W. Introduction to Artificial
Intelligence and Expert Systems, Prentice Hall of
India Private Limited New Delhi, 1998
[4] Brown, Carol E. and O'Leary, Daniel E.
“INTRODUCTION TO ARTIFICIAL
INTELLIGENCE AND EXPERT SYSTEMS”
Artificial Intelligence / Expert Systems Section of
the American Accounting Association ,
http://www.bus.orst.edu/faculty/brownc/es_tutor/
es_tutor.htm#1-AI
01/03/2000
[5] Nilsson, Nils J. Principles of Artificial
Intelligence, Narosa Publishing House New
Delhi, 1998
[6] Schildt, Herbert Artificial Intelligence
Using C, Osborne McGraw Hill Berkeley,
California,, 1987
[7] Norvig, Peter Paradigms of Artificial
Intelligence Programming Morgan Kaufmann
Publishers, San Mateo, California 1992
[8] Cawsey, Alison Databases and Artificial
Intelligence 3 Artificial Intelligence Segment,
http://www.cee.hw.ac.uk/~alison/ai3notes/all.ht
ml 08/ 19/1994
[9] Beck, Joseph, Stem, Mia and Haugsiaa
“Applications of AI in Education” The ACM's
First Electronic Publication
http://www.acm.org/crossroads/xrds3-1/aied.htm
l 02/13/ 2000


                   A. S. MD.
                   KAMRUZZAMAN;
                   received an Associate in
                   Science from LaGuardia C.
                   College/CUNY in Computer
                   Science in August 1999
                   CAREER OBJECTIVE:
Webmaster ORIGIN: Bangladesh HONORS
from CUNY: National & College Dean's List ‘97
– ‘99 Vice-president-Phi Theta Kappa
International Honor Society ‘98 – ‘99. College
Senator, Student Govt. Association ‘98 – ‘99.
Student Advisory Council - Foreign Student
Club, Asian Club, Alpha Theta Phi ‘97 – ‘99.
AWARDS: Leadership Award’98 Honors Award
for Academia from the Dept. of Student
Affairs’98 & ‘99 Student Govt. Association
Award’98. My Bio and Web Creations -- http://
www.york.cuny.edu/~kzaman/newpage.html

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AI

  • 1. Artificial Intelligence & Applications A. S. Md. Kamruzzaman Binghamton University Abstract: When an ordinary person thinks formed on the basis of those programs. The about a computer, he would immediately say storing of programs allowed the computer to that computer is a machine with programs change function quickly and easily by running that cannot act like a human brain. If a a new program. This capability implies that a computer is asked to make a decision on computer might be able to think and learn by certain aspects, it gives the result. It should be itself. impossible for a machine to act like a human AI mostly came from the thinking intelligence. But in fact, when “Deep Blue” perspective of a computer. A computer can (International Business Machines [IBM] think of itself and can produce decisions. software) defeated, Gerry Kesparov, World Dealing with a decision accordingly, a Champion Chess Grandmaster for six times computer can exhibit behavior similar to a within ten rounds, it was a big surprise.. The person. The key point is some programs are idea of acting computers like a human being definitely intelligent. The problem is whether came from Artificial Intelligence (AI). The a machine can think or a program running on most common and important areas of AI are a computer can be intelligent. Most programs searching (for solutions), expert systems, do not perform the same tasks in the same natural language processing, pattern way that a person does. An intelligent recognition, Robotics, machine learning logic, program should act like a human being and uncertainty and “fuzzy logic”. AI provides a exhibit behavior when confronted with a wide range of ideas of how software can similar problem. It is not necessary in the simulate human behavior. Artificial same way that the programs actually solve, or Intelligence deals with a specific kind of attempt to solve problems that a person software that relates to human activities. This would. is a branch of Computer Science that is This paper will provide an overview mostly concerned with the study and creation survey of AI while focusing on areas of of computer systems that exhibit some forms research and applications. A history of of intelligence: systems that learn new Artificial Intelligence will be given to readers concepts and tasks. AI has systems that can to overview ideas. This paper will also provide reason and draw useful conclusions about the the visual parts of Artificial Intelligence surroundings, systems that can understand a related to human beings. The paper will natural language or perceive and comprehend conclude on future perspectives developed by a visual scene, and systems that perform other AI. types of feats that require human types of intelligence. AI has some terms that should be understood from the Artificial Concepts such I. Introduction as, intelligence, knowledge, reasoning, thought, cognition, and learning. The Turing machine is considered the first Artificial Intelligence that works on the = = AI stored program computers. During the early MACHINE age of computers, there were actually machines that literally had to be rewired to solve different problems. Turing’s recognition was that those programs could be stored as data in the computer’s memory and could be executed later. All modern computers are
  • 2. Figure 1. A robot is taking solution from an it can be explained by a reduction to AI machine [1] ordinary physical processes. Philosophers staked out most of the Humankind has given itself the important ideas of AI, but to make the scientific name Homo Sapiens which leap to a formal science required a level means “man the wise”. This is so of mathematical formalization in three because human mental capacities are so main areas: computation, logic and important to everyday life. The field of probability. In computation theorem, AI attempts to understand intelligent intractability, reduction, NP (Non entities. Thus, one reason to study AI is Probabilistic) completeness and decision to learn more about humankind. But theory has a great impact on AI which unlike Philosophy and Psychology, arose from math. Psychology plays which are also concerned with another major role in AI. Behaviorism intelligence, AI strives to build started discovering animals’ brain and intelligent entities as well as understand cognitive psychology started on brain them. Another reason to study AI is that possesses and processing information. these constructed intelligent entities are Kenneth Craik [2] made a connection interesting and useful in their own right. between stimulus and response. The AI has produced many significant and three key steps of a knowledge based on impressive results even at this early agent; (1) the stimulus must be translated stage in its development. Although no into an internal representation; (2) the one can predict the future in detail, it is representation is manipulated by clear that computers with the level of cognitive processes to derive new human intelligence would have a huge internal representations, and (3) these in impact on the future course of turn are retranslated back into action. civilization. In Figure 1, this idea is Computer Engineering catalyzed ideas illustrated visually. of AI. The computer has been In terms of Philosophy, AI has unanimously acclaimed as the artifact inherited many ideas, viewpoints, and with the best chance of achieving techniques from other disciplines. The artificial intelligence. The Turing idea story of AI began around 450BC [2]. changed the vision of AI. The idea of "When Plato reported a dialogue in knowledge representation (the study of which Socrates asks Euthyphro,"I want how to put knowledge into a form that a to know what is characteristics of piety computer can reason with) was tied to which makes all actions pious ... that I language and informed by research in may have it to turn to, and to use as a linguistics that was connected to standard whereby to judge your actions philosophical analysis language. and those of other men."[2] Dualism Figure 2 can make the ideas more which is part of the mind (or soul or clear. It shows how AI could be spirit), is outside of nature exempts from described in terms of the environment physical laws. The mind or brain holds and an agent. An agent is anything that the entire world which operates can be viewed as perceiving the according to physical laws. It is also environment through sensors and acting possible to adopt an intermediate upon that environment through effectors. position in which one accepts that the A human agent has eyes, ears and other mind has a physical basis, but denies that organs for sensors, and hands, legs,
  • 3. mouth, and other body parts for field of AI. Newell and Simon wrote a effectors. A robotic agent substitutes reasoning program which is capable of cameras and infrared range finders for thinking non-numerically, and solved the the sensors and various motors for the mind-body problem. The name of effectors. Software agent has encoded bit Artificial Intelligence came from the strings as percepts and actions. A generic Darmouth Workshop [2]. agent is diagrammed in Figure 2. Early enthusiasm great expectations (1952 – 1969): Newell and PERCEPTS Simon’s [2] early success was followed SENSORS up with the General Problem Solver or (GPS). This was probably the first ENVIRONMENT program to embody the “thinking AGENT humanly” approach. Starting in 1952 [2], ACTIONS Arthur Samuel wrote a series of programs for checkers (draughts) that eventually learned to play tournament EFFECTORS level checkers. He discovered the idea Figure 2. Agents interect with environments that computers can only do what they are through sensors and effectors[2] told to do. Early work building on the neural networks of McCulloch and Pitts also flourished. The work of Winograd and Cown (1963) showed how a large II. History number of elements could collectively represent an individual concept, with a It is difficult to pinpoint an exact corresponding increase in robustness and starting date for the invention of AI. It parallelism. began to emerge as a separate field of A dose of reality (1966 - 1974): study during 1940 and 1950s when the Weizenbaum’s ELIZA program (1965) computer became a commercial reality. [2] which could apparently engage in Here is the subdivision of some part of serious conversation on any topic, AI history. actually just borrowed and manipulated The gestation of AI (1943 - the sentences typed into it by a human. 1956): Warren McCulloch and Walter The illusion of unlimited computational Pitts (1943)[2] drew on three-source power was not confined to problem- knowledge of the basic physiology and solving programs. Early experiments in function of neurons in the brain. They machine evolution (new called genetic proposed a model of artificial neurons in algorithms) were based on the which each neuron is characterized as undoubtedly correct belief that by being “on” or “off”, with a switch to making an appropriate series of small “on” occurring in response to stimulation mutations to a machine code programs, by a sufficient number of neighboring one can generate a program with good neurons. This work was arguably the performance for any particular simple forerunner of both the logicist tradition task. This idea, then, was to try random in AI and the connectionist tradition. In mutations and then apply a selection the early 1950s, the invention of neural process to preserve mutations that network computer opened another new seemed to improve behavior. During
  • 4. this time there was certain difficulties. framework. There have been a number The first difficulty was that programs of advances that built upon each other had insufficient knowledge of their rather than starting from scratch each subject matter. Secondly the time. Probabilistic Reasoning in intractability of many of the problems Intelligent Systems marked a new that AI programs worked by representing acceptance of probability and decision the basic facts about a problem and theory in AI, following a resurgence of trying out a series of steps to solve it. interest in formalism was invented to The theory of NP (Non Probabilistic) allow efficient reasoning about the completeness brought the problem. This combination of uncertain evidence. This theory could not able to bring the approach largely overcomes the problem solutions for problems. Third difficulty with probabilistic reasoning systems of came from fundamental limitations on the 1960s and 1970s. It also has come to the basic structures being used to determined AI research on uncertain generate intelligent behavior. reasoning and expert systems. Similar Knowledge based systems revolutions have occurred in robotics, (1969 - 1979): The widespread growth computer vision, machine learning of applications to real-world problems (including neural networks) and caused a concomitant increase in the knowledge representation. A better demands for workable knowledge understanding of the problems and their representation schemes. A large number complexity properties, combined with of different representation languages increased mathematical sophistication, were developed. Some were based on has led to workable research agenda and logic. For example the Prolog language robust methods perhaps encouraged by became popular in Europe, and the the progress in solving the sub problems PLANNER family [2] in the United of AI, researchers have also started to States. look at the “whole agent” problem again. Neural Networks (1986 - present): Some disillusionment was occurring concerning the applicability III. Definition of AI the expert systems technology derived from MYCIN- type systems [2]. Many AI is a branch of Computer corporations and research groups found Science concerned with the study and that building a successful expert system creation of computer systems. AI involved much more than simply buying exhibits some form of intelligence: a reasoning system and filling it with systems that learn new concepts and rules. Some predicted an “AI Winter” in tasks, systems that can reason and draw which AI funding would be squeezed useful conclusions about the world. AI severely. systems can understand a natural Recent events (1987 - present): language or perceive and comprehend a Speech technology and the related field visual scene, and systems that perform of level written character recognition are other types of feats that require human already making the transition to types of intelligence. Intelligence is the widespread industrial and consumer integrated sum of those feats which applications. An elegant synthesis of gives us the ability to remember a face existing planning programs into a simple not seen for thirty or more years, or to
  • 5. build and send rockets to the moon [3]. to try to construct precise and testable The intelligence requires knowledge. AI theories of the workings of the human is not the study and creation of mind. The rational thought which conventional computer systems. govern the operation of the mind, and From the perspective of initiated the field of logic. Acting intelligence; AI makes machines rationally is another part of the definition "intelligent" -- acting, as we would of AI which means acting so as to expect people to act. The inability to achieve one’s goals, given one’s beliefs. distinguish computer responses from An agent is something that perceives and human responses is called the Turing acts. If we look at AI impressive test. Intelligence requires knowledge achievements, it is still impossible to Expert problem solving - restricting produce the brain abilities of a three- domain to allow including significant year-old child. These include the ability relevant knowledge [4]. to recognize and remember numerous From a research perspective: diverse objects in a scene, to learn new artificial intelligence is the study of how sounds and associate them with objects to make computers do things which, at and concepts and to adopt readily to the moment, people do better. One way many diverse new situations. to measure the success of AI within computers is to interrogate it by a human via a Teletype. The computer passes the IV. AI Performances test if the interrogator cannot tell AI has performed a vital role in whether there is a computer or a human so many fields. Researchers are devoting at the other end. The computer needs to their time and effort to establish a good posses the following capabilities [4]. performance on AI. The features of AI Natural language processing - to enable can illustrate some ideas of AI it to communicate successfully in performance. English (or some other human Knowledge representation: It is a language). design for knowledge–based agent. A simple logical language for expressing 1. Knowledge representation- to store knowledge and showing how it can be information provided before or during used to draw conclusions about the the interrogation. world and to decide what to do. The 2.Automated reasoning – to use the language is capable of expressing a wide stored information to answer questions variety of knowledge about complex and to draw new conclusions. worlds. It could be represented several 3. Machine learning – to adapt to new ways. circumstances and to detect and 1.Knowledge Acquisition- extrapolate patterns. formalizing knowledge and 4. Computer vision - to perceive objects implementing knowledge bases are and robotics to move them about. major tasks in the construction of large A computer program has to think like a AI systems. The hundreds of rules and human. The interdisciplinary field of thousand of facts required by many of cognitive science brings together these systems are generally obtained by computer models from AI and interviewing expert in the domain of experiment techniques from psychology application. Representing expert
  • 6. knowledge as facts or rules is typically a to confer the ability (or reasons about tidious and time-consuming process. one’s own knowledge). Techniques for automating this Expert systems: these constitute knowledge acquisition process would most of AI’s commercial success. Expert constitute a major advance in AI Systems are programs that mimic the technology. Knowledge acquisition can behavior of a human expert. They use automate in three ways [5]. Firstly, information that the user supplies to special-editing systems might be built sender an opinion on a certain subject. that allow persons who possess expert The expert system asks user questions knowledge about the domain of until it can identify an object that application to interact directly with the matches with the answer from the user. knowledge bases of AI systems. Secondly, advances in natural language For example: processing techniques will allow humans Expert: Is it green? to instruct and teach computer systems Users: No. through ordinary conversations. Thirdly, Expert: Is it red? AI systems might learn important Users: Yes. knowledge from their experiences in Expert: Does it grow on a tree? their problem domains. User: No. Representational Formalisms; Expert: Does it grow on a cane? 2. Commonsense reasoning- Many of User: Yes. the existing ideas about AI techniques Expert: Does the cane have thorns? have been refined on “toy” problems, User: Yes. such as problems in the ‘block worlds’, Expert: It is a raspberry. in which the necessary knowledge is Every expert system has two parts reasonably easy to formalize. [6]: the knowledge base and the Representing Prepositional Attitudes reference engine. The knowledge base is [5]- a database that holds specific information and rules about a certain San knows that Pete is a lawyer. subject. The inference engine is the San does not believe that John is a information that the user supplies to find doctor. an object that matches. It has two Pete wants it to rain. branches; 1.Deterministic, and John fears that Sam believes that the 2.probabilistic. morning star is not Venus. The interface engine can also be The underlined portions of these defined as the forward-chaining method sentences are propositions, and the and the backward–chaining method. relations know, believe etc. refer to The Forward-Chaining Method: attitudes of agents toward these Forward-chaining is sometimes called propositions. A logical formalization for “data-driven”[6] because the inference expressing the appropriate relations engine uses information that the user between agents and attitudes. provides to move through a network of 3. Meta–Knowledge – A good logical AND and OR until it reaches a solution to the problem of reasoning terminal point, which is the object. about the knowledge of others ought also In Figure 3, a fruit knowledge base creates a Forward-chaining interface
  • 7. engine. The engine would arrive at the Understanding commands written in object apple, when it is given the proper standard human languages. NL processor attributes as shown in Figure 3. A extract information from any given input. The core of any NLP system is the Round Grows on trees parser. The parser is the section of code that reads each sentence, word by word Does not grow in Deep South and decide what is what. The example of a parser. Red or yellow The State Machine Parser: The state- machine parser uses the current state of the sentence to predict what type of word Apple may legally follow. Figure 5 shows the state machine that is a directed graph Figure 3. Forward-chaining to the object that shows the valid transitions from one apple[9] state to another. For example, a noun can be followed by a verb or a preposition. A Forward-chaining system essentially state machine is shown in Figure 5. builds a tree from the leaves down to the root. The Backward-Chaining Method: Noun Backward-chaining is the reverse of forward-chaining. A backward-chaining Preposition inference engine starts with a hypothesis Adjective Verb (an object) and request information to confirm or deny it. In Figure 4, the fruit Adverb Try apple Figure 5. The state-machine of the restricted grammar [9] Grows on trees Grows on vine Is round Red or yellow Vision and Pattern Recognition: Vision systems can be Does not grow in Deep South implemented in two ways. First method Is orange Apple tries to reduce an image to the lines that form the outline of each object. This Figure 4. Backward-chaining to the object apple method uses various filters to remove [9] information from the image, and contrast enhances to make all parts of the image either black or white. They are called Question is an apple, applying binary image because every paint in the backward-chaining inferences to the fruit image is either black or white. Second knowledge base. As the diagram shows, method attempts to give the computer a backward-chaining prunes a tree. more humanlike view of the image. This Natural Language processing: method gives to the computer Natural Language Processing (NLP) information about the brightness of the tries to make the computer capable of part of the image. It allows the computer
  • 8. to derive two important features from the information in a database. Role does not image that are not possible with a light require any generalization to be derived contrast image because of surfaces and or any high level thinking. shadows. It is easy to interpret an image Cognitive learning – This form of but correctly identifying the objects or learning requires analyzing, organizing, features that make up the image. There and correlating specific pieces of are several ways to do it. Firstly, knowledge. The product of this mental computer can do it by controlled effort is the creation of class hallucination [6]. Recognition of object descriptions. The ability to learn class is also another issue in the pattern description is fundamental to the recognition. creation of a computer that thinks the Robotics: There are two types of way that human does. robots. Industrial assembly robots are Logic and uncertainty: Logic lies used in a controlled environment. It can at the heart of computer programming. A perform only programmed task. There programming language is simply an are two ways to teach a new task to a implementation of a special form of robot: knowledge. One of the most pleasing aspects of logic is that it is certain. 1.by using teach pendant, or Things that are represented by logic are 2.programmed by using a Robotic- ‘true’ or ‘false’. Resolving or dealing control language. with uncertainty is critical to machine Teach pendant is a hand-held control intelligence because it is required for box that allows an operator to move the successful interfacing with the real various joints of the robot. It is linked world. Fuzzy logic deals with the through the robot’s main control evaluation of logical expression that computer. Moving each joint can do it contain uncertain values probabilistic and computer records each position [6]. systems utilizes the probability of the For complex jobs Robotic Control occurrence of various events in order to Language s are used. It is a computer arrive at an answer [6]. program used to control a robot. Appearing human: The idea is to Autonomous Robots: It is much more make a computer appear to be like a complex than industrial robots. It sensors person. It is completely integrated that allows to hear and see and program which appears to be human. understand natural language and what The name of this program is ELIZA. If a the language means. It can also solve human is compared with a computer problems. It can be implemented by (program), the human has the emotions parallel processing but it is still under and the personality. In terms of research. computer, a machine can not act like a Machine learning: Two types of human. The program which is created by learning: role learning and cognitive the human being, can do whatever the learning. programmer wants. It can appear to have Role learning is something from emotions and personality because the memorization. In terms of computer, it is programmer built the program with those a set of instruction programmed in a functions in it. This way the computer database, which can easily follow a shows that it has emotions and procedure or store some item of personality.
  • 9. AI is the field where human brain V. Application of AI and machine talks together. The importance of AI is very wide. Human The distinction between a brain can be transformed into a machine computer “user” and a computer format and all the research is done “programmer” is that the user provides through AI. Cognitive Psychology and new input, or data (words or numbers), AI are very related. Cognitive while the programmer defines new Psychology discusses on human operations, or programs, as well as new behavior and AI deals how to transform types of data [7]. machine close to human. The GPS developed in 1957 by Alan The invention of supercomputers Newell and Hervert Simon, embodied a is one of the great inventions of AI grandiose vision. A single computer which changed the view of AI. With a program that could solve any problem, combined budget of about one billion given a suitable description of the dollars [3], the Japanese are determined problem GPS caused quite a stir when it to realize many of their goals, namely, to was introduced and some people in AI produce systems that can converse in a felt it would sweep in a grand new era of natural language, understand speech and intelligent machines. It is much easier to visual scenes, learn and refine their implement a GPS in steps. There are few knowledge, make decisions and exhibit steps which are [7] other human traits. The Defense Advanced Research Projects Agency a. Describe the problem in vague term (DARPA) has increased it’s funding for b. Specify the problem in algorithmic research in AI. In addition, most of the terms. larger high-tech companies such as IBM, c. Implement the problem in a DEC, AT&T have their own research programming language. programs. d. Test the program on representative examples. VII. Future Perspective e. Debug and analyze the resulting program and Lots of plans have taken to f. Repeat the process. improve the research of AI. At the same The main programming languages used time, funding is increased to improve its in AI are Lisp and Prolog. Both have standing. Researchers are trying to get features which make them suitable for the Autonomous Robots which will AI programming, such as support for list change the entire AI field. processing, pattern matching and : (1) Reducing the time and cost of exploratory programming. Both are also development is a big plan for AI. widely used -Prolog especially in Europe (2) Allowing students to work and Japan, and Lisp in the US. This wide collaboratively is another plan from use within the field is another reason to researchers. choose Lisp or Prolog for AI One important research issue is implementation [8]. reducing the time and cost in order to develop such systems. Current strategies for doing this include the development VI. Importance of AI of authoring tools and creating systems in a modular fashion. Solving this
  • 10. problem will be an enormous environment but also on the actions of breakthrough in ITS research, since other agents. The standard scenario more systems could be constructed and involves a set of agents who make their thus more research into the effectiveness decisions simultaneously, without of computer based instruction could be knowledge of the decisions of the other performed [9]. agent. AI is trying to discover some desirable property P; There are number VIII. Conclusion of choices for p which are, Perfect rationality: the classical A computer is a game device to a notion of rationality in decision theory. child, but it can be used in different ways A perfectly rational agent acts at every depending on the user’s needs. instant in such a way as to maximize its Programmers build all kinds of programs expected utility, given the information it to satisfy the needs of the growing has acquired from the environment. number of users. It will not be surprising Calculate rationality: the notion of to utilize computers with highly rationality that has used implicitly in developed artificial intelligence designing logical and decision capabilities a few years from now to do theoretical agents. A calculatively thee tasks. Computers will have the rational agent eventually returns what ability to create a program that can would have been the rational choice at create another program and thus simulate the beginning of its deliberation. This is the behavior of the human brain. The an interesting property for a system to best example thus far of these exhibit because it continues an “in- capabilities were documented by Deep principle” capacity to do the right thing. Blue in a chess game that serves as a Bounded optimality: A bounded technological landmark for the future. optimal agent behaves as well as The shear knowledge of a computer possible given its computational adapting and functioning faster than the resources. That is, the expected utility of human mind though programmed to do the agent program for a bounded optimal so by humans is in essence a frightening agent is at least as high as the expected reality that needs to be confronted. utility of any other agent program Though AI just finished with its period running on the same machine. of infancy, it has ramifications that yet Philosophy has also seen a remain unknown. to everyone. The effort gradual evolution in the definition of and research can bring the surprising rationality. There has been a shift from innovations that the majority crave and consideration of act utilitarianism – the desire but there are also results which rationality of individual acts – to rule cannot be forseen when the computer utilitarianism, or the rationality of begins to think for itself. general policies for acting. Another area is game theory, a branch of economics that began References widespread study of decision theory. [1] My own Creative picture. Game theory studies decision problems [2] Norvis, Peter &Russel, Stuart Artificial in which the utility of a given action Intelligence: A modern Approach, Prentice Hall, depends not only on chance events in the NJ, 1995
  • 11. [3] Patterson, Dan W. Introduction to Artificial Intelligence and Expert Systems, Prentice Hall of India Private Limited New Delhi, 1998 [4] Brown, Carol E. and O'Leary, Daniel E. “INTRODUCTION TO ARTIFICIAL INTELLIGENCE AND EXPERT SYSTEMS” Artificial Intelligence / Expert Systems Section of the American Accounting Association , http://www.bus.orst.edu/faculty/brownc/es_tutor/ es_tutor.htm#1-AI 01/03/2000 [5] Nilsson, Nils J. Principles of Artificial Intelligence, Narosa Publishing House New Delhi, 1998 [6] Schildt, Herbert Artificial Intelligence Using C, Osborne McGraw Hill Berkeley, California,, 1987 [7] Norvig, Peter Paradigms of Artificial Intelligence Programming Morgan Kaufmann Publishers, San Mateo, California 1992 [8] Cawsey, Alison Databases and Artificial Intelligence 3 Artificial Intelligence Segment, http://www.cee.hw.ac.uk/~alison/ai3notes/all.ht ml 08/ 19/1994 [9] Beck, Joseph, Stem, Mia and Haugsiaa “Applications of AI in Education” The ACM's First Electronic Publication http://www.acm.org/crossroads/xrds3-1/aied.htm l 02/13/ 2000 A. S. MD. KAMRUZZAMAN; received an Associate in Science from LaGuardia C. College/CUNY in Computer Science in August 1999 CAREER OBJECTIVE: Webmaster ORIGIN: Bangladesh HONORS from CUNY: National & College Dean's List ‘97 – ‘99 Vice-president-Phi Theta Kappa International Honor Society ‘98 – ‘99. College Senator, Student Govt. Association ‘98 – ‘99. Student Advisory Council - Foreign Student Club, Asian Club, Alpha Theta Phi ‘97 – ‘99. AWARDS: Leadership Award’98 Honors Award for Academia from the Dept. of Student Affairs’98 & ‘99 Student Govt. Association Award’98. My Bio and Web Creations -- http:// www.york.cuny.edu/~kzaman/newpage.html