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 Jeongwoo Ko

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Bibliometrics: publication history
Average citations per article7.40
Citation Count37
Publication count5
Publication years2002-2011
Available for download3
Average downloads per article665.00
Downloads (cumulative)1,995
Downloads (12 Months)83
Downloads (6 Weeks)8
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1 published by ACM
July 2011 SIGIR '11: Proceedings of the 34th international ACM SIGIR conference on Research and development in Information Retrieval
Publisher: ACM
Citation Count: 2
Downloads (6 Weeks): 1,   Downloads (12 Months): 16,   Downloads (Overall): 248

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Expert search has made rapid progress in modeling, algorithms and evaluations in the recent years. However, there is very few work on analyzing how users interact with expert search systems. In this paper, we conduct analysis of an expert search query log. The aim is to understand the special characteristics ...
Keywords: query log analysis, expert search

September 2010 Information Processing and Management: an International Journal: Volume 46 Issue 5, September, 2010
Publisher: Pergamon Press, Inc.
Citation Count: 3

Question answering (QA) aims at finding exact answers to a user's question from a large collection of documents. Most QA systems combine information retrieval with extraction techniques to identify a set of likely candidates and then utilize some ranking strategy to generate the final answers. This ranking process can be ...
Keywords: Answer merging, Answer ranking, Question answering

3 published by ACM
July 2010 ACM Transactions on Information Systems (TOIS): Volume 28 Issue 3, June 2010
Publisher: ACM
Citation Count: 7
Downloads (6 Weeks): 3,   Downloads (12 Months): 24,   Downloads (Overall): 693

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This article presents two probabilistic models for answering ranking in the multilingual question-answering (QA) task, which finds exact answers to a natural language question written in different languages. Although some probabilistic methods have been utilized in traditional monolingual answer-ranking, limited prior research has been conducted for answer-ranking in multilingual question-answering ...
Keywords: probabilistic graphical model, Question-answering, answer selection, answer-ranking, answer-merging

4 published by ACM
July 2007 SIGIR '07: Proceedings of the 30th annual international ACM SIGIR conference on Research and development in information retrieval
Publisher: ACM
Citation Count: 25
Downloads (6 Weeks): 4,   Downloads (12 Months): 43,   Downloads (Overall): 1,054

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Graphical models have been applied to various information retrieval and natural language processing tasks in the recent literature. In this paper, we apply a probabilistic graphical model for answer ranking in question answering. This model estimates the joint probability of correctness of all answer candidates, from which the probability of ...
Keywords: probabilistic graphical model, question answering, answer ranking

October 2002 AMTA '02: Proceedings of the 5th Conference of the Association for Machine Translation in the Americas on Machine Translation: From Research to Real Users
Publisher: Springer-Verlag
Citation Count: 0

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