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Towards a practically useful text simplification system / Reno Kriz.

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Dissertations & Theses @ University of Pennsylvania Available online

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Format:
Book
Thesis/Dissertation
Author/Creator:
Kriz, Reno, author.
Contributor:
Callison-Burch, Chris, degree supervisor.
Apidianaki, Marianna, degree supervisor.
University of Pennsylvania. Department of Computer and Information Science, degree granting institution.
Language:
English
Subjects (All):
Artificial intelligence.
Computer and Information Science--Penn dissertations.
Penn dissertations--Computer and Information Science.
Local Subjects:
Artificial intelligence.
Computer and Information Science--Penn dissertations.
Penn dissertations--Computer and Information Science.
Genre:
Academic theses.
Physical Description:
1 online resource (158 pages)
Contained In:
Dissertations Abstracts International 83-03B.
Place of Publication:
[Philadelphia, Pennsylvania] : University of Pennsylvania ; Ann Arbor : ProQuest Dissertations & Theses, 2021.
Language Note:
English
System Details:
Mode of access: World Wide Web.
text file
Summary:
While there is a vast amount of text written about nearly any topic, this is often difficult for someone unfamiliar with a specific field to understand. Automated text simplification aims to reduce the complexity of a document, making it more comprehensible to a broader audience. Much of the research in this field has traditionally focused on simplification sub-tasks, such as lexical, syntactic, or sentence-level simplification. However, current systems struggle to consistently produce high-quality simplifications. Phrase-based models tend to make too many poor transformations; on the other hand, recent neural models, while producing grammatical output, often do not make all needed changes to the original text. In this thesis, I discuss novel approaches for improving lexical and sentence-level simplification systems. Regarding sentence simplification models, after noting that encouraging diversity at inference time leads to significant improvements, I take a closer look at the idea of diversity and perform an exhaustive comparison of diverse decoding techniques on other generation tasks. I also discuss the limitations in the framing of current simplification tasks, which prevent these models from yet being practically useful. Thus, I also propose a retrieval-based reformulation of the problem. Specifically, starting with a document, I identify concepts critical to understanding its content, and then retrieve documents relevant for each concept, re-ranking them based on the desired complexity level.
Notes:
Source: Dissertations Abstracts International, Volume: 83-03, Section: B.
Advisors: Callison-Burch, Chris; Apidianaki, Marianna; Committee members: Marcus, Mitch; Roth, Dan; Ungar, Lyle; Miltsakaki, Eleni.
Department: Computer and Information Science.
Ph.D. University of Pennsylvania 2021.
Local Notes:
School code: 0175
ISBN:
9798535570952
Access Restriction:
Restricted for use by site license.
This item must not be sold to any third party vendors.

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