TAILIEUCHUNG - Báo cáo khoa học: "Paraphrasing with Bilingual Parallel Corpora"

Previous work has used monolingual parallel corpora to extract and generate paraphrases. We show that this task can be done using bilingual parallel corpora, a much more commonly available resource. Using alignment techniques from phrasebased statistical machine translation, we show how paraphrases in one language can be identified using a phrase in another language as a pivot. We define a paraphrase probability that allows paraphrases extracted from a bilingual parallel corpus to be ranked using translation probabilities, and show how it can be refined to take contextual information into account. . | Paraphrasing with Bilingual Parallel Corpora Colin Bannard Chris Callison-Burch School of Informatics University of Edinburgh 2 Buccleuch Place Edinburgh EH8 9LW callison-burch @ Abstract Previous work has used monolingual parallel corpora to extract and generate paraphrases. We show that this task can be done using bilingual parallel corpora a much more commonly available resource. Using alignment techniques from phrasebased statistical machine translation we show how paraphrases in one language can be identified using a phrase in another language as a pivot. We define a paraphrase probability that allows paraphrases extracted from a bilingual parallel corpus to be ranked using translation probabilities and show how it can be refined to take contextual information into account. We evaluate our paraphrase extraction and ranking methods using a set of manual word alignments and contrast the quality with paraphrases extracted from automatic alignments. 1 Introduction Paraphrases are alternative ways of conveying the same information. Paraphrases are useful in a number of NLP applications. In natural language generation the production of paraphrases allows for the creation of more varied and fluent text Iordanskaja et al. 1991 . In multidocument summarization the identification of paraphrases allows information repeated across documents to be condensed McKeown et al. 2002 . In the automatic evaluation of machine translation paraphrases may help to alleviate problems presented by the fact that there are often alternative and equally valid ways of translating a text Pang et al. 2003 . In question answering discovering paraphrased answers may provide additional evidence that an answer is correct Ibrahim et al. 2003 . In this paper we introduce a novel method for extracting paraphrases that uses bilingual parallel corpora. Past work Barzilay and McKeown 2001 Barzilay and Lee 2003 Pang et al. 2003 Ibrahim et al. 2003 has examined the use of monolingual

• Báo cáo khoa học
• Paraphrasing
• Bilingual Parallel Corpora
• Colin Bannard Chris Callison Burch
• báo cáo khoa học
• mô hình ngôn ngữ
• xử lý ngôn ngữ tự nhiên
• Automatic Paraphrasing in Essay Format
• Mechanical Translation and Computational Linguistics
• Sheldon Klein
• báo cáo ngôn ngữ
• ngôn ngữ tự nhiên
• Combining Multiple Resources
• Improve SMT based Paraphrasing Model
• Shiqi Zhao
• Paraphrasing Using Given
• New Information
• Question Answer System
• scientific reports
• model language
• process natural language
• Reading Section
• TOEFL iBT Reading
• Listening Skills
• Witing Task Types
• Paraphrasing Question
• Transition Words and Phrases
• Academic writing
• Writing capacity
• Quillbot application
• English writing
• English Language majors
• luyện dịch tiếng anh
• kỹ năng học tiếng anh
• bí quyết học tiếng anh
• mẹo học tiếng anh
• phương pháp học tiếng anh