3151 search results - page 149 / 631 » Using query term order for result summarisation |
153
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LISP
2006
15 years 4 months ago
2006
We introduce a concrete semantics for floating-point operations which describes the propagation of roundoff errors throughout a calculation. This semantics is used to assert the co...
236
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ICDE
2005
IEEE
16 years 5 months ago
2005
IEEE
Vertical partitioning is a well-known technique for optimizing query performance in relational databases. An extreme form of this technique, which we call vectorization, is to sto...
140
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CIKM
2007
Springer
15 years 10 months ago
2007
Springer
Traditional adaptive filtering systems learn the user’s interests in a rather simple way – words from relevant documents are favored in the query model, while words from irre...
134
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ICEIS
2009
IEEE
15 years 11 months ago
2009
IEEE
In an information retrieval system, a thesaurus can be used for query expansion, i.e. adding words to queries in order to improve recall. We propose a semi-automatic and interactiv...
129
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SIGMOD
2003
ACM
16 years 4 months ago
2003
ACM
XML databases often contain documents comprising structured text. Therefore, it is important to integrate "information retrieval style" query evaluation, which is well-s...