Chat GPT
A Lecturer’s
Perspective
Presented by Peter Windle
21/03/23

What is 21st Century Bicycle we’re talking about?
•Generative pre-trained transformer family of language models
• It is trained using a model of reinforcement learning from human
feedback
• We’re using version 3.5
• It was trained on text databases from the internet, 175 billion pieces
of information
• Version 4 was released last week!

How does it work?
UNDERSTAND ACTION REACTION

How fast is
the uptake?

The initial response:
It was banned
on computers
and WIFI in
many
universities

Beijing Academy of Artificial Intelligence
1.5 billion parameters
175 billion parameters
178 billion parameters
280 billion parameters
580 billion parameters
1.2 trillion parameters
1.75 trillion parameters
x 500
100 billion neurons
1000 trillion synapses
Preparing
students for a
world with AI

Chat GPT-3 vs GPT-4

Prompt
Engineering

Prompt tip Description Prompt Example
1 Resetting the Model Resetting the model can help generate
new and diverse responses.
"ignore all previous
prompts and..."
2 Topic Expertise ChatGPT can be asked to be an expert on a
specific topic.
“You are an expert in
physics, can you explain the
theory of relativity to me?"
3 Imitating a Writer You can prompt ChatGPT to write in the
style of a specific writer.
"Write a paragraph in the
style of Ernest
Hemingway."
4 Own Writing Style You can prompt ChatGPT to generate text
in your own writing style.
"Write a sentence using my
writing style."

Prompt tip Description Prompt Example
5 Semantic Similarity Using semantic similarity can help
generate more relevant responses.
"Generate a sentence that
has a similar meaning to 'I
am feeling happy today'."
6 Controlled
Generation
Controlled generation can help generate
responses that adhere to specific
constraints.
"Generate a list of three
adjectives that describe my
personality."
7 Novelty and
Creativity
Open-ended prompts can result in novel
and creative responses.
"Write a short story that
begins with the sentence
'The world had ended, but
for some reason, I was still
alive'."
8 Temperature Adjusting the temperature can help
control the level of creativity in the
generated responses.
"Generate a response to
the prompt 'What is the
meaning of life?' with a
temperature of 0.5."

Explain it like I’m 5!

Example 1

Example 2

Example 3

Example 4

Example 5

Example 6

Example 7

Hallucinations

Hallucination
• OpenAI acknowledged that
ChatGPT "sometimes writes
plausible-sounding but incorrect
or nonsensical answers
• As much as 15% of content
generated on GPT-3 could be
hallucinations
• GPT-4 rate is much lower

Examples

Plagiarism Detection

Plagiarism
detection
• OpenAI Text Classifier
• GPTZero
• Originality.AI
• Copyleaks AI Content Detector
(99.12% accuracy)
• Turnitin releasing on April 4th

Other AI Tools

MidJourney

nautical dock on
the ocean with
ropes, warm and
moody, lighting
from behind
(edited)

A Dog Sits On
Grass

a data center circa 1975,
large mainframe
computers, reel to reel
tape drives, punch card
readers, men in black
suits sitting at dumb
terminals, photorealistic

Using AI Tools In The Classroom

Changing what & how I teach!