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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

中文新聞標題自動生成之研究 / A Study on the Automatic Generation for Headlines of Chinese News Articles

江珮翎, Chiang, Pei-ling Unknown Date (has links)
在網路資訊爆炸的年代,資料的分析整理日趨重要,本論文之研究目標正是針對資料做標題生成的處理,為資料自動生成標題,進而將資料加值化,轉化為資訊。研究者首先閱讀英文相關文獻,分析整理後,認為中文的處理方式與英文有所差異,因此,在本論文中,提出與英文不同之中文前置作業與自動標題生成之方法。 研究者針對標題的自動生成提出了幾種特徵值考量,包括候選詞權重值,訓練標題-文本詞彙,標題長度的關係及詞組間距。本論文之研究分為兩階段,第一階段為訓練階段,將文件做前置處理與斷詞,接著訓練標題-文本詞彙與統計文件標題長度的機率。第二階段為執行階段,分析新文件之候選詞權重值,並參照訓練階段之標題-文本詞彙與標題長度之機率值參考表,考量詞組間距後自動為文件產生標題。本論文所採用的訓練文件集來源為1998年至1999年五種報紙,涵蓋不同主題,共84,211篇文件,而測試文件的實驗分為Outside Test與Inside Test兩部分。 研究者為實驗結果進行兩種評估,一為電腦評估,將自動生成之標題與記者所擬訂的標題比對後,計算出求準率、求全率與F1。Outside Test求準率為14.21%、求全率為11.43%、F1為12.67%。Inside Test求準率為15.84%、求全率為12.94%、F1為14.21%。實驗結果顯示,正確率方面與其他文獻之英文文件標題的生成結果(F1=3.2%~24%)相近,但與實際標題仍有差距,因此,在未來工作上,仍有很大的發展空間。二為人為評估,讓使用者在閱讀自動生成之標題後,加以評分。自動生成之標題的流暢度還算不錯。然總結來說,本論文之研究尚屬初始階段,盼未來能更加成熟,並可有更進一步的創新與改進。 / As the number of digital documents on internet is growing up, analysis and organization of documents become quite important. In this thesis, we propose an approach for headline generation of documents. We can try our best to transfer the document data into information in some sense using the proposed approach. We review literature about the related topics, and present a different approach to deal with Chinese documents rather than English documents. We propose some approach to Chinese documents headline generation. The thesis is separate two steps, one is training step, and the other is execution step. On the first step, the documents were preprocessed. Secondly, we trained the probability of headline-text words, and headline’s length. And on the execution step, we analyzed scores of headline candidates and gap, then referred to the probability of headline-text words, and headline’s length, finally we automatically generate headline for documents. The training documents are selected from a test collection for information retrieval, CIRB. Totally 84,211 Chinese news articles published between 1998 and 1999 are selected. Testing documents has two parts, one is for outside test, and the other is for inside test. We conducted two evaluations, one is the automatic evaluation using metrics of presicion, recall and F1; the other is the human assessment. The precision of outside test is 14.21%、recall is 11.43%、F1 is 12.67%. And the precision of inside test is 15.84%、recall is 12.94%、F1 is 14.21%。The automatic evaluation result shows the accruacy is still not good enough, and the human assessment evaluation shows our approach can produce human-readable headlines.
2

「民族晚報」「大華晚報」加強競爭前、後的內容分析

王石番, Wang, Shi-Fan Unknown Date (has links)
第一章緒論 第一節報業競爭的意義 第二節「民族晚報」和「大華晚報」的簡史 第三節研究重心與假設 第四節研究方法 第二章新聞內容的分析 第一節新聞的分類及其範疇 第二節競爭加強前的「民族晚報」和「大華晚報」 第三節競爭加強後的「民族晚報」和「大華晚報」 第三章軟性新聞標題和新聞圖片的分析 軟性新標題的分析 第一節競爭加強前的「民族晚報」和「大華晚報」 第二節競爭加強後的「民族晚報」和「大華晚報」 新聞圖片的分析 第三節競爭加強前的「民族晚報」和「大華晚報」 第四節競爭加強後的「民族晚報」和「大華晚報」 第四章比較 第一節「民族晚報」、「大華晚報」加強競爭前、後新聞內容的比較 第二節「民族晚報」、「大華晚報」加強競爭前、後軟性新聞標題的比較 第三節「民族晚報」、「大華晚報」加強競爭前、後新聞圖片的比較 第四節「民族晚報」、「大華晚報」加強競爭後的同異點 第五章結論
3

探討LINE推播新聞之使用行為──以情境理論分析 / Understanding User Behavior in Push Notification News on LINE: A Contextual Theory Approach

賴合新, Lai, Ho Hsin Unknown Date (has links)
各種行動裝置服務不僅便利了生活,也讓資訊的傳遞更加即時且無界。2012年起,五家媒體藉助行動通訊軟體LINE在台灣的高人氣,每日固定推播四則新聞,總訂戶數至今突破450萬人,儼然成為一個新興的新聞傳播渠道。 本研究以情境理論的觀點,質化的使用者日誌記錄法和深度訪談法為主,理解使用者在不同情境下使用推播新聞的行為,並透過HTML5文字雲分析機,歸納出各家媒體推播內容的樣貌和趨勢。情境分析構面包含接收與閱讀情境下的「實體環境」、「社交環境」、「資訊環境」、「先前狀態」和「時間的影響」等;另再針對使用過程中面臨的「人機互動情境」綜合分析使用者的體驗。 這些情境因素不僅各自影響媒介使用的動機和行為,也會與新聞內容相互加強(或制約)吸引力,端賴哪方拉力(或推力)較強。根據訪談結果,「新聞內容」的影響力似乎又更為關鍵。受訪者普遍認為推播新聞的即時性和重要性偏低,新聞價值未能滿足期待,導致對LINE推播新聞的需要性和依賴性偏低。 未來業者可考慮設立不同的「主題式官方帳號」,提供針對性的內容;或者在目前的官方帳號中,增加一日新聞類型的多元性以滿足更多人的需求,就看媒體如何定位自家官方帳號的角色。此外,在發揮新聞標題創意的同時,仍應與內文保持一致,避免造成期待上的落差。不斷強化內容品質,並考量主要受眾的使用情境,可望改善體驗不佳的問題。 本研究以情境理論的觀點,開啟了「推播新聞」的學術研究基礎,並充實行動新聞領域的實證研究經驗,希望提供未來的研究者和新聞從業人員,一個了解推播新聞使用行為的先例。 / Mobile devices and services facilitate our lives, and also assist in delivering information more freely and immediately. Since 2012, five companies send four pieces of news daily through “LINE”, which is the most popular mobile instant messaging application in Taiwan. Nowadays, LINE becomes an emerging news channel, with over 450 million subscribers in total. This study is mainly based on the context theory, by means of diary method and in-depth interviews, to understand users’ behavior of push notifications news in different contexts, from news receiving aspect, reading aspect and human-computer interaction aspect. Besides, analyzing the news headlines by “HTML5 Text Analyzer” to explore the features of different media. Research found that users’ behavior and attitude influenced not only by contextual factors, but also by the value of content. Moreover, the effect of contextual factors and content would be reinforcing (or restraining) mutually, depends which one influence users’ behavior and attitude more crucially. According to respondents’ feedback, the value of push notification news, such as immediacy and importance, were far from their expectations. News editors may plan to set up more than one official account to reach target audience; or to increase the diversity of daily news by existing accounts, making effort to meet demand of more audience. In addition, the headline should be more concordant with the content of the news. Keep improving the quality of content, taking account of context factors while pushing news, may improve users’ experience.

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