2269 search results - page 302 / 454 » Retrieval evaluation with incomplete information |
184
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DOCENG
2009
ACM
16 years 1 months ago
2009
ACM
In order to evaluate the performance of information retrieval and extraction algorithms, we need test collections. A test collection consists of a set of documents, a clearly form...
150
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RECSYS
2009
ACM
16 years 1 months ago
2009
ACM
We examine the case of over-specialization in recommender systems, which results from returning items that are too similar to those previously rated by the user. We propose Outsid...
189
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MSR
2006
ACM
16 years 14 days ago
2006
ACM
Versioned and bug-tracked software systems provide a huge amount of historical data regarding source code changes and issues management. In this paper we deal with impact analysis...
179
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SAC
2006
ACM
16 years 14 days ago
2006
ACM
In this paper, we show that representation and reasoning techniques used in traditional knowledge engineering and the emerging Semantic Web can play an important role for heteroge...
164
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SIGIR
2006
ACM
16 years 14 days ago
2006
ACM
We present a novel framework for answering complex questions that relies on question decomposition. Complex questions are decomposed by a procedure that operates on a Markov chain...