Keyphrase Enhanced Diverse Beam Search: A Content-Introducing Approach to Neural Text Generation

Neural text generation has been a challenging task, among which the text representation and the beam search are crucial techniques. By improving these techniques, we propose a novel model to generate texts of higher quality in this paper. First, we leverage the global and local contextual features b...

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Main Authors: Xuewen Chen, Jinlong Li, Haihan Wang
Format: Article
Language:English
Published: IEEE 2019-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/8726288/
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author Xuewen Chen
Jinlong Li
Haihan Wang
author_facet Xuewen Chen
Jinlong Li
Haihan Wang
author_sort Xuewen Chen
collection DOAJ
description Neural text generation has been a challenging task, among which the text representation and the beam search are crucial techniques. By improving these techniques, we propose a novel model to generate texts of higher quality in this paper. First, we leverage the global and local contextual features by combining the structure of both the recurrent neural network (RNN) and convolutional neural network (CNN) to learn a joint representation for the source text. Next, we introduce a modified diverse beam search to foster the diversity in the generated sentences during decoding, and then we rank these sentences according to its saliency score which measures the co-occurrence of keyphrases with the source text. Such a ranking mechanism promotes the semantical relevance between the source text and the generated sentence. To evaluate our model, we conduct extensive experiments on two neural generation tasks, including document summarization and headline generation. The results on both tasks show that our proposed model contributes to promising improvement in performance compared with the state-of-the-art baselines.
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spelling doaj.art-65c3fd18b05f40e9a7f0dab1d5dc8f3f2022-12-21T23:45:04ZengIEEEIEEE Access2169-35362019-01-017727167272510.1109/ACCESS.2019.29199748726288Keyphrase Enhanced Diverse Beam Search: A Content-Introducing Approach to Neural Text GenerationXuewen Chen0https://orcid.org/0000-0002-9058-8332Jinlong Li1Haihan Wang2USTC-Birmingham Joint Research Institute, University of Science and Technology of China, Hefei, ChinaUSTC-Birmingham Joint Research Institute, University of Science and Technology of China, Hefei, ChinaUSTC-Birmingham Joint Research Institute, University of Science and Technology of China, Hefei, ChinaNeural text generation has been a challenging task, among which the text representation and the beam search are crucial techniques. By improving these techniques, we propose a novel model to generate texts of higher quality in this paper. First, we leverage the global and local contextual features by combining the structure of both the recurrent neural network (RNN) and convolutional neural network (CNN) to learn a joint representation for the source text. Next, we introduce a modified diverse beam search to foster the diversity in the generated sentences during decoding, and then we rank these sentences according to its saliency score which measures the co-occurrence of keyphrases with the source text. Such a ranking mechanism promotes the semantical relevance between the source text and the generated sentence. To evaluate our model, we conduct extensive experiments on two neural generation tasks, including document summarization and headline generation. The results on both tasks show that our proposed model contributes to promising improvement in performance compared with the state-of-the-art baselines.https://ieeexplore.ieee.org/document/8726288/Text generationneural networkssequence to sequencebeam searchkeyphrase
spellingShingle Xuewen Chen
Jinlong Li
Haihan Wang
Keyphrase Enhanced Diverse Beam Search: A Content-Introducing Approach to Neural Text Generation
IEEE Access
Text generation
neural networks
sequence to sequence
beam search
keyphrase
title Keyphrase Enhanced Diverse Beam Search: A Content-Introducing Approach to Neural Text Generation
title_full Keyphrase Enhanced Diverse Beam Search: A Content-Introducing Approach to Neural Text Generation
title_fullStr Keyphrase Enhanced Diverse Beam Search: A Content-Introducing Approach to Neural Text Generation
title_full_unstemmed Keyphrase Enhanced Diverse Beam Search: A Content-Introducing Approach to Neural Text Generation
title_short Keyphrase Enhanced Diverse Beam Search: A Content-Introducing Approach to Neural Text Generation
title_sort keyphrase enhanced diverse beam search a content introducing approach to neural text generation
topic Text generation
neural networks
sequence to sequence
beam search
keyphrase
url https://ieeexplore.ieee.org/document/8726288/
work_keys_str_mv AT xuewenchen keyphraseenhanceddiversebeamsearchacontentintroducingapproachtoneuraltextgeneration
AT jinlongli keyphraseenhanceddiversebeamsearchacontentintroducingapproachtoneuraltextgeneration
AT haihanwang keyphraseenhanceddiversebeamsearchacontentintroducingapproachtoneuraltextgeneration