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168
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SIGIR
2003
ACM
16 years 3 days ago
2003
ACM
Information retrieval system evaluation is complicated by the need for manually assessed relevance judgments. Large manually-built directories on the web open the door to new eval...
159
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ECIR
2008
Springer
15 years 8 months ago
2008
Springer
Abstract. We show that several previously proposed passage-based document ranking principles, along with some new ones, can be derived from the same probabilistic model. We use lan...
207
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ECIR
2006
Springer
15 years 8 months ago
2006
Springer
Keyword-based queries are an important means to retrieve information from XML collections with unknown or complex schemas. Relevance Feedback integrates relevance information provi...
230
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SIGIR
2008
ACM
15 years 6 months ago
2008
ACM
The approach of using passage-level evidence for document retrieval has shown mixed results when it is applied to a variety of test beds with different characteristics. One main r...
161
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SIGIR
2010
ACM
15 years 10 months ago
2010
ACM
We present a document expansion approach that uses Conditional Random Field (CRF) segmentation to automatically extract salient phrases from ad titles. We then supplement the ad d...