博碩士論文 107423063 詳細資訊




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姓名 鍾文翔(Wen-Xiang Zhong)  查詢紙本館藏   畢業系所 資訊管理學系
論文名稱 新聞導言之智能生成
(Intelligent generation of news lead)
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摘要(中) 新聞導言是新聞內容中相當重要的一部分,導言處在新聞的開頭,以最簡練的文字寫出文章中的重點內容,吸引讀者繼續看完整篇報導,導言主要可分為硬式新聞導言及軟式新聞導言兩種大類,硬式導言的內容通常包含新聞的何時(when)、何地(where)、何事(what)、何人(who)、為何(why)、如何(how),簡稱5w1h,要求在簡短的篇幅盡可能描述新文的主體;軟式導言則偏向使用新奇、懸疑的手法來吸引讀者興趣。但目前的自然語言處理任務中,生成新聞標題、新聞摘要的相關研究相當多,自動產生導言的研究卻較少。
本研究主要在建立一套自動產生導言的框架,從導言本身的寫作手法和要素去分析,利用TextRank結合Word2Vec與句子位置、句子長度、標題重疊率去辨識新聞關鍵事件,取得主題句子集合,再將句子集合去進行詞性標注、命名實體、語義角色標注等方式來抽取新聞5w1h要素,然後分別產生硬式新聞導言和軟式新聞導言。
硬式新聞導言抽取七種常見硬式新聞導言類型,即敘事式、描寫式、引語式、描寫式、提問式、評議式、結論式、對比式的特徵,例如:研究結果、地點描述、提問、引用句等,最後將5w1h要素及導言特徵兩者結合去產生硬式新聞導言。軟式新聞導言的部分,使用隱藏5w1h要素的句法來產生懸疑手法,成功產生了軟式新聞導言。
依照這些方式,本研究產生了硬式新聞導言及軟式新聞導言,確保產生的新聞導言包含足夠的新聞重點資訊,且能依使用者需求產生不同類型的導言。
本研究除了能幫助使用者減少撰寫導言的人力及時間需求,更使產生出來的導言有著多樣的寫作風格,可依照使用者的需求做改變,產生的導言也能讓讀者快速瞭解到新聞資訊。
摘要(英) The news lead is a very important part of news content. The lead is at the beginning of the news, that is writes key content of the article in the most concise text to attract readers to read the entire report. The lead is written in many ways, but usually contains when, where, who, what, why, how in the news 5w1h information In natural language processing tasks, there are a lot of research is on generate headlines and summaries, but there are little research is on automatic lead.
This research is mainly to establish a framework for automatically generating leads, the writing techniques and elements of the lead are analyzed by using TextRank and Word2Vec with sentence position, sentence length, and title overlap rate to identify key events in news to obtain a set of topic sentences. Then the sentence collections are used for pos tagging, named entity tagging, semantic role tagging and other methods to extract 5w1h elements in news, and then to generate hard news lead and soft news lead respectively.
Seven common hard news lead types combined extract from hard news lead, and the 5w1h elements and the features of the lead are finally combined to produce a hard news lead. The introduction of soft news uses the syntax of hiding 5w1h elements to generate the lead of soft news.
According to these methods, this research has produced hard news introduction and soft news introduction, ensuring that the news introduction generated contains enough key news information and can generate different types of introduction according to the needs of users.
This research not only helps users reduce the manpower and time requirements for writing lead, but also makes the generated lead have a variety of writing styles, which can be changed according to the needs of users. The generated lead can also allow readers to quickly understand news information.
關鍵字(中) ★ 新聞導言
★ 事件提取
★ 5w1h
★ TextRank
★ Word2Vec
關鍵字(英) ★ News introduction
★ Event extraction
★ 5w1h
★ TextRank
★ Word2Vec
論文目次 摘要 I
Abstract II
目錄 III
圖目錄 V
表目錄 VI
第一章、 緒論 1
1.1 研究背景 1
1.2 研究動機 1
1.3 研究目的 3
1.4 論文架構 3
第二章、 文獻探討 5
2.1 新聞導言 5
2.2 中文斷詞系統 7
2.3 自動摘要任務 7
2.4 事件抽取 12
2.5 摘要評價方法 16
第三章、 研究方法 17
3.1 系統架構 17
3.2 區分導言類型 17
3.3 資料前處理 18
3.4 關鍵事件識別 19
3.5 抽取新聞5w1h要素及導言特徵 22
3.6 產生新聞導言 28
3.7 新聞導言評估 30
3.8 小結 31
第四章、 研究結果 33
4.1 關鍵句抽取結果 33
4.2 新聞5w1h要素抽取結果 35
4.3 導言特徵抽取結果 37
4.4 產生新聞導言分析 38
4.5 導言評估 49
第五章、 結論 51
5.1 結論 51
5.2 研究限制與未來方向 52
參考文獻 54
附錄一:語義角色標注列表 61
附錄二:依存句法分析列表 62
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指導教授 薛義誠(Yih-Chearng Shiue) 審核日期 2020-8-24
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