predicting success in community question answering

... answer Q prev avg rating ”want in answer in the” in question CA avg asker rating ”adenocarcinoma” in question CA History “anybody” in question ”was” in question ”who is” in question Q content ... model. 1 Introduction Community Question Answering (CQA) has re- cently become a viable method for seeking infor- mation online. As an alternative to using general- purpose web search engines, information ... poorly, never obtaining a satisfactory answer. In our recent work (Liu et al., 2008) we have in- troduced a general model for predicting asker sat- isfaction in community question answering. We found...

Ngày tải lên: 20/02/2014, 09:20

Ngày tải lên: 30/03/2014, 21:20

... machine translation. In Proceedings of ACL. H. Duan and Y. Cao and C. Y. Lin and Y. Yu. 2008. Searching questions by identifying questions topics and question focus. In Proceedings of ACL, pages 156-164. J. ... exploring category infor- mation for question retrieval in community question answer archives. In Proceedings of WWW. D. Chiang. 2005. A hierarchical phrase-based model for statistical machine ... models to phrase models. In Proceedings of CIKM. J. Jeon and W. Bruce Croft and J. H. Lee. 2005. Find- ing similar questions in large question and answer archives. In Proceedings of CIKM, pages 84-90. R....

Ngày tải lên: 20/02/2014, 04:20

... draw conclusions relating to the psycholinguistics of dia- logue. 4 Long term and short term priming In the following, we will examine syntactic (struc- tural) priming as one of the driving forces behind alignment. ... jmoore @ inf.ed.ac.uk School of Informatics University of Edinburgh United Kingdom Abstract Task-solving in dialogue depends on the lin- guistic alignment of the interlocutors, which Pickering & ... differ in how successfully informa- tion is conveyed. In task-oriented dialogue, where the interlocutors are communicating to solve a prob- lem, task success is a crucial indicator of the success of...

Ngày tải lên: 20/02/2014, 12:20

... expressed in a single sen- tence or a single post. Only identifying question and answering sentences from the thread is not enough for automatic question answering. For this example, in order ... Sentence Relation Labeling. In a thread containing N sentences, we would have a 2D CRF containing N 2 nodes in a N × N grid. Exact inference in such a graph is intractable. In this paper we use ... dependency tagging. This dependency information can benefit other tasks such as thread ranking and answer summarization in online forums. 1 Introduction Automatic Question Answering (QA) systems...

Ngày tải lên: 07/03/2014, 18:20

... phenomena that are in- volved in determining answerhood. Our work suggests that considerable gains in performance can be obtained by incorporating TE during both answer processing and passage re- trieval. ... asked in natural language. In the quest for producing accurate answers, the open-domain Q/A problem has been cast as: (1) a pipeline of linguistic processes pertaining to the processing of questions, ... matching instances from our training corpora described in Section 3.3. This method did not always extract true paraphrases of either texts. In order increase the likelihood that 909 Processing Question Module (QP) Passage Retrieval Module (PR) Answer...

Ngày tải lên: 08/03/2014, 02:21

... 2,10% 3,25% 2,57% 1,48% 1,75% Pronouns in Sentences Containing 0 pronouns 44,80% 48,09% 51,37% 64,04% 75,06% 77,84% 79,06% 83,79% 84,92% 90,95% Containing 1 pronoun 30,40% 31,37% 29,46% 23,07% ... 8,10% Containing 2 pronouns 14,94% 12,99% 12,26% 8,54% 5,27% 4,75% 2,79% 2,56% 2,57% 0,85% Containing +2 pronouns 9,86% 7,55% 6,90% 4,34% 2,51% 2,39% 0,60% 0,64% 0,88% 0,09% Ratio of pronominal reference ... resolution: R a m B a h adu Question: “What did Democrats propose for low-income families?” Answer: “ They also want to provide small subsidies for low-income families in which both parents work at...

Ngày tải lên: 08/03/2014, 05:20

... 2000. Claire Cardie, Vincent Ng, David Pierce,Chris Buckley. Ex- amining the role of statistical and linguistic knowledge sources in a general-knowledge que stion answering sys- tem. In Proceedings of the ... 2000. Robert Gaizauskas and Kevin Humphreys. A com- bined IR/NLP approach to question answering against large text collections. In Proceedings of the 6th Content-Based Multimedia Information Access Confer- ence ... with Open-Domain Textual Question Answer- ing. In the Proceedings of the 18th International Con- ference on Computational Linguistics (COLING-2000), pages 292–298, 2000. Frederick Jelinek, John...

Ngày tải lên: 08/03/2014, 05:20

... E medical-findings [ show(X-ray,f)} Just printing the extension of this set, NO p ~tastases. 99 One problem in transforming phrases into predicate calculus and than regenerating them is ... generates a response. Our original system, like many current question- answering systems, had simple mechanisms for generating lists and tables in response to questions. As we broadened our ... direct answer to a question. When asked a yes-no question, a helpful question- answering system will try to provide more infor- mation than just "yes" or "no". In our system,...

Ngày tải lên: 08/03/2014, 18:20

... described in detail in (Costa, 2005a, 2005b). 2 System Architecture The inputs to the system are questions in natural language. Esfinge begins by transforming these questions into patterns ... pre-processing of document collections. Esfinge explores a dif- ferent approach: instead of investing in pre- processing corpora, it tries to use the redundancy existent in the web to find its ... Fernando Costa Linguateca at SINTEF ICT Pb 124 Blindern, 0314 Oslo, Norway luis.costa@sintef.no Abstract Esfinge is a general domain Portuguese question answering system. It tries to take...

Ngày tải lên: 08/03/2014, 21:20

... consists in creating additional queries using question word synonyms in the purpose of increasing the recall of the search engine. Synonyms are obtained via the WordNet 2.0 3 lexical database. Question QUERY EXPANSION DOCUMENT RETRIEVAL KEYPHRASE EXTRACTION ESTIMATION OF ... Proceedings of the International Conference Re- search on Computational Linguistics (ROCLING X). C. C. T. Kwok, O. Etzioni, and D. S. Weld. 2001. Scal- ing question answering to the web. In World ... Voorhees. 2004. Overview of the TREC 2004 question answering track. In Text REtrieval Confer- ence. H. Witten and E. Frank. 2000. Data Mining: Practical Machine Learning Tools and Techniques with Java Implementation....

Ngày tải lên: 17/03/2014, 22:20

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Ngày tải lên: 31/03/2014, 01:20

Ngày tải lên: 31/03/2014, 03:20

Ngày tải lên: 22/06/2014, 19:20

... Circulating levels of copeptin, a novel biomarker, in lower respiratory tract infections. Eur J Clin Invest 2007, 37:145-152. 22. Christ-Crain M, Muller B: Biomarkers in respiratory tract infections: ... ultimate clinical utility of a biomarker is defined by the degree it improves clinical decision making and adds timely information beyond that of readily available information from clinical examination. ... enforced guideline recommendations with- out knowledge of PCT. The primary end-point in this non-inferiority trial was a combined endpoint of adverse medical outcomes within 30 days following the ED admission....

Ngày tải lên: 25/10/2012, 10:02

... word has something to do with eating. ReadingComp_4E_[fin].indd 37ReadingComp_4E_[fin].indd 37 3/11/09 11:10:41 AM3/11/09 11:10:41 AM ReadingComp_4E_[fin].indd 18ReadingComp_4E_[fin].indd 18 3/11/09 ... How? TIP ReadingComp_4E_[fin].indd 25ReadingComp_4E_[fin].indd 25 3/11/09 11:10:38 AM3/11/09 11:10:38 AM NEW YORK READING COMPREHENSION SUCCESS IN 20 MINUTES A DAY 4th Edition ® ReadingComp_4E_[fin].indd ... explained in the lessons that follow. In the meantime, start practicing active reading as best you can. Begin by taking the pretest. ReadingComp_4E_[fin].indd xiReadingComp_4E_[fin].indd xi...

Ngày tải lên: 18/03/2013, 01:45

... Finding a Topic 19 LESSON 3 Getting Essential Information from Print Sources 23 LESSON 4 Getting Essential Information from Online Sources 27 LESSON 5 Selecting the Best Sources 31 LESSON 6 Interviewing ... drawings, paintings, or sketches musical, dance, records, tape recordings, CDs, and most Fine Arts libraries or Fine Arts or instrumental videotapes institutions, national dance centers, or index ... 31 LESSON 6 Interviewing Primary Sources 35 LESSON 7 Notetaking 39 LESSON 8 Beginning an Outline 45 LESSON 9 Finalizing an Outline 49 LESSON 10 How to Write a Thesis 53 LESSON 11 Writing a First Draft...

Ngày tải lên: 18/03/2013, 01:45

... expense. LE_WritingSkills4ed_[fin].indd 39LE_WritingSkills4ed_[fin].indd 39 3/11/09 10:12:45 AM3/11/09 10:12:45 AM LE_WritingSkills4ed_[fin].indd 36LE_WritingSkills4ed_[fin].indd 36 3/11/09 10:12:44 ... Olson, Judith F. Writing skills success in 20 minutes a day. II. Title: Writing skills success in twenty minutes a day. PE1112.O45 2009 808'.042—dc22 2008049185 Printed in the United States ... write two or three drafts, you certainly aren’t alone in your need for revision. Introduction LE_WritingSkills4ed_[fin].indd viiLE_WritingSkills4ed_[fin].indd vii 3/11/09 10:12:30 AM3/11/09...

Ngày tải lên: 18/03/2013, 01:45

Ngày tải lên: 17/08/2013, 10:00