This presentation relates to a video that presents a paraphrasing system called eSPERTo (SMART in English), available on Youtube (https://www.youtube.com/watch?v=_0kxvX1m35Y). eSPERTo aims to help students, language learners, language professionals and language users in general to write higher quality texts, make stylistic changes or transform texts among language varieties, among other tasks.

1. technology
from seed
eSPERTo
System for Paraphrasing in Editing and Revision of Texts
Team
Anabela Barreiro (P. Investigator) INESC-ID
Cristina Mota (INESC-ID)
Francisco Raposo (INESC-ID & IST)
Luísa Coheur (INESC-ID & IST)
Pedro Cláudio (INESC-ID)
Ricardo Ribeiro (INESC-ID & ISCTE-IUL)
Collaborators
Paula Carvalho (U. Europeia)
Lucília Chacoto (U. Algarve)
Jorge Batista (U. Algarve)
Ida Rebelo-Arnold (U. Valladolid)
Paulo Quaresma (INESC-ID & U.
Évora)
Isabel Garcez (U. Lisboa)
Renata Vieira (PUC-RS)
DEMO DAY
Sistema de Parafraseamento para Edição e Revisão de Texto

2. About the Project
• Development of a paraphrasing system
• Enables the recognition and generation of paraphrases
Smart Context-
sensitive
Linguistically
sophisticated
-
semantically-
driven
To say/write the same sentence/text in other words
Change of words and structures, but maintains the same meaning
Transformation into semantically equivalent
phrases/expressions/sentences
semantico-syntactic units
multiwords
other phrasal units
recent
advances
in
language
technology
transformational
grammars

3. Communication and Paraphrasing
Specialized language Non-technical, common language
You have a bad cold,
an headache and a
runny nose
You have an important
rhinitis with cephalgia
and rhinorrhea

4. About the Project
paraphrase
generator
paraphrase
acquisition
module
web
interactive
application
• Help Portuguese language learners, translators and editors
in revising their texts
• (or speeding up the editing/revision process)

5. Applications Explored
Question-answering system to increase the linguistic knowledge of an
intelligent conversational virtual agent
Summarization tool to assist with the reduction of words or expressions

6. Next Applications to Be Explored
• The utility of eSPERTo's paraphrasing capabilities will be
explored in application scenarios, such as
Language learning – classroom environment
Language learning – chatbots
Conversion/adaptation between language varieties
Text editing and revision

7. Applications to Explore – Relevance to
Portuguese
Paraphrases
Can be used in a
writing aid/support
environment to help
students write better
quality sentences and
texts
Key linguistic
resources in Natural
Language Generation
and Interpretation
Play a very important
role in NLP
applications for any
language
An efficient
paraphraser can have
a great impact in the
process of teaching
and learning
Portuguese
Conversion of
informal into
formal
language and
vice-versa
Adaptation
between
European and
Brazilian
Portuguese

8. Applications to Explore – Relevance to
Portuguese
Paraphrases
Stylistic editing –
users can choose a
clear and concise
(less wordy) style
Machine
translation -
higher quality and
more fluent from/
into Portuguese
Pre- and post-
editing and
machine
translation
evaluation
Language learning
for foreign or native
language speakers to
improve their reading
and writing skills

9. Impact in Language Teaching / Learning
9
Evaluate the student's knowledge of the language to determine their level of ability
Support understanding of the meaning of sentences
Reduce the complexity of texts (simplification of complex and extremely long
sentences)
Reduce ambiguity
Increase clarity
Eliminate
redundancies
Increase interpretability
Provide explainability Idiomatic expressions
Expressions difficult to interpret and
understand for both native and non-native
speakers
Technical expressions and domain terms

10. 10
Conversion of European into Brazilian PT

11. 11
Conversion of European into Brazilian PT

12. 12
Conversion of Brazilian into European PT

13. 13
Conversion of Informal into Formal Language

14. 14
Stylistic Paraphrasing

15. 15
Thank you!
Obrigada!