2679 search results - page 236 / 536 » Experimental Models for Validating Technology |
172
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QUACON
2009
Springer
15 years 11 months ago
2009
Springer
Much research on context quality in context-aware systems divides into two strands: (1) the qualitative identi cation of quality measures and (2) the use of uncertain reasoning tec...
141
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SPIRE
2007
Springer
15 years 11 months ago
2007
Springer
Abstract. Weighting models use lexical statistics, such as term frequencies, to derive term weights, which are used to estimate the relevance of a document to a query. Apart from t...
123
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SIGIR
2006
ACM
15 years 11 months ago
2006
ACM
Information retrieval algorithms leverage various collection statistics to improve performance. Because these statistics are often computed on a relatively small evaluation corpus...
117
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SIGIR
2006
ACM
15 years 11 months ago
2006
ACM
We hypothesized that language modeling retrieval would improve if we reduced the need for document smoothing to provide an inverse document frequency (IDF) like effect. We create...
196
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WIDM
2004
ACM
15 years 10 months ago
2004
ACM
A Focused crawler must use information gleaned from previously crawled page sequences to estimate the relevance of a newly seen URL. Therefore, good performance depends on powerfu...