11016 search results - page 1830 / 2204 » Digital Information Retrieval |
198
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WWW
2004
ACM
16 years 7 months ago
2004
ACM
We present a question answering (QA) system which learns how to detect and rank answer passages by analyzing questions and their answers (QA pairs) provided as training data. We b...
167
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WWW
2004
ACM
16 years 7 months ago
2004
ACM
This paper describes one solution to the problem of how to select sequence, and link Web resources into a coherent, focused organization for instruction that addresses a user'...
281
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VLDB
2002
ACM
16 years 7 months ago
2002
ACM
Multiversion support for XML documents is needed in many critical applications, such as software configuration control, cooperative authoring, web information warehouses, and "...
239
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SIGMOD
2001
ACM
16 years 7 months ago
2001
ACM
The bit-sliced index (BSI) was originally defined in [ONQ97]. The current paper introduces the concept of BSI arithmetic. For any two BSI's X and Y on a table T, we show how ...
199
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ICDE
2010
IEEE
16 years 6 months ago
2010
IEEE
Many online or local data sources provide powerful querying mechanisms but limited ranking capabilities. For instance, PubMed allows users to submit highly expressive Boolean keywo...