"Knowing a thing is ""a thing"": The use of acoustic features in multiword expression extraction"

Jacobs, Cassandra L.

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https://hdl.handle.net/2142/92965 Copy

Description

Title

"Knowing a thing is ""a thing"": The use of acoustic features in multiword expression extraction"

Author(s)

Jacobs, Cassandra L.

Issue Date

2016-07-19

Director of Research (if dissertation) or Advisor (if thesis)

Fleck, Margaret

Department of Study

Computer Science

Discipline

Computer Science

Degree Granting Institution

University of Illinois at Urbana-Champaign

Degree Name

M.S.

Degree Level

Thesis

Keyword(s)

• Collocations
• Phrases
• Speech processing
• Language models

Abstract

"Speakers of a language need to have complex linguistic representations for speaking, often on the level of non-literal, idiomatic expressions like black sheep. Typically, datasets of these so-called multiword expressions come from hand-crafted ontologies or lexicons, because identifying expressions like these in an unsupervised manner is still an unsolved problem in natural language processing. In this thesis I demonstrate that prosodic features, which are helpful in parsing syntax and interpreting meaning, can also be used to identify multiword expressions. To do this, I extracted noun phrases from the Buckeye corpus, which contains spontaneous spoken language, and matched these noun phrases to page titles in Wikipedia, a massive, freely available encyclopedic ontology of entities and phenomena. By incorporating prosodic features into a model that distinguishes between multiword expressions that are found in Wikipedia titles and those that are not, we see increases in classifier performance that suggests that prosodic cues can help with the automatic extraction of multiword expressions from spontaneous speech, helping models and potentially listeners decide whether something is ""a thing"" or not."

Graduation Semester

2016-08

Type of Resource

text

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http://hdl.handle.net/2142/92965

Copyright and License Information

Copyright 2016 Cassandra Jacobs

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