Abstract
Recent deep learning and sequence-to-sequence learning technology have produced impressive results on automatic summarization. However, the models have limited insights on the underlying language and it remains challenging for system-generated summaries to be truthful to the original input or cover the most important information. This is especially the case for generating abstractive summaries using neural models. My work aims for a flexible and controllable summarization system that can be adapted to cater to different scenarios. It is designed to incorporate linguistic structure information into deep neural networks, have the capability to produce abstracts by re-using a varying amount of source text, and take language characteristics into consideration for summary generation and selection. My dissertation provides a comprehensive overview to the problem of text summarization. I will present a number of approaches to incorporate linguistic structure into state-of-the-art deep neural models to help system summaries remain grammatical and retain the most salient meaning of the source text. I will also describe a summarization approach that is controllable during training and produce diverse summaries during the decoding and re-ranking processes. Finally, I will conclude with a novel approach for selecting optimal summaries from a collection of candidates and discuss the opportunities and challenges in this promising area of research.
Notes
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Graduation Date
2021
Semester
Spring
Advisor
Liu, Fei
Degree
Doctor of Philosophy (Ph.D.)
College
College of Engineering and Computer Science
Department
Computer Science
Degree Program
Computer Science
Format
application/pdf
Identifier
CFE0008938; DP0026217
URL
https://purls.library.ucf.edu/go/DP0026217
Language
English
Release Date
11-15-2022
Length of Campus-only Access
1 year
Access Status
Doctoral Dissertation (Open Access)
STARS Citation
Song, Kaiqiang, "Towards Improving the Robustness of Neural Abstractive Summarization" (2021). Electronic Theses and Dissertations, 2020-2023. 967.
https://stars.library.ucf.edu/etd2020/967