2732 search results - page 258 / 547 » SIGA, a System to Manage Information Retrieval Evaluations |
212
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SIGMOD
2010
ACM
15 years 6 months ago
2010
ACM
Automated extraction of structured data from Web sources often leads to large heterogeneous knowledge bases (KB), with data and schema items numbering in the hundreds of thousands...
167
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SIGIR
2005
ACM
16 years 4 days ago
2005
ACM
We present a model, based on the maximum entropy method, for analyzing various measures of retrieval performance such as average precision, R-precision, and precision-at-cutoffs....
211
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IDEAS
2009
IEEE
16 years 1 months ago
2009
IEEE
In this paper, we present our work on evaluating the skyline algorithms BNL, SFS, and a variant of LESS in PostgreSQL. It is well known that the performance of skyline queries is ...
213
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EPIA
2007
Springer
15 years 10 months ago
2007
Springer
In this paper we present a rule-based system for automatic extraction of definitions from Portuguese texts. As input, this system takes text that is previously annotated with morph...
206
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CIKM
2004
Springer
15 years 10 months ago
2004
Springer
In this paper we study the problem of collecting training samples for building enterprise taxonomies. We develop a computer-aided tool named InfoAnalyzer, which can effectively as...