Presentation Title: Does Context Matter in Lexical Simplification?

Section: Poster Session Group 1 #4

Location: , Great Hall

Date & Time: Friday, April 19, 2013 - 10:30am - 11:15am


Lexical simplification is the task of replacing
a target word or phrase in a sentence to make
the sentence simpler. Lexical simplification
is a sub-problem of the full text simplifica-
tion problem which can benefit children, sec-
ond language learners, and people with cog-
nitive disabilities. In this paper we investi-
gate whether the textual context surrounding
the word to be replaced is important in identi-
fying and selecting substitutions.
Starting with a corpus of sentence-aligned
English Wikipedia and Simple English
Wikipedia data we generated lexical simplifi-
cation examples. These examples consist of a
sentence, a target word to replace, and a list
of candidate substitutes solicited from users
on Amazons Mechanical Turk service. We
compare data collected both with and without
the sentence context and utilize a variety of
metrics including frequency, entropy, and
similarity of the collected substitutes. We find
that for some words context does matter for
the simplification task, however not for all

Type of Presentation: Individual poster

Oral presenters
Presentation Area: Computer Science

Presentation Topic: NA

Arts presenters

Class Project
Course name: 
Course Instructor: 
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Presenter Information
Presenter(s): Pendergast, Edward Hatton (Teddy), Adelstein, Patrick David Kwai Tein
Major(s): Computer Science; Computer Science
Class Year(s): 2013; 2014

Sponsor(s): Kauchak, David R.
Dept(s): Computer Science

Moderator: ,