9683 search results - page 1365 / 1937 » Predicting query performance |
169
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CRITIS
2007
15 years 8 months ago
2007
DNS amplification attacks massively exploit open recursive DNS servers mainly for performing bandwidth consumption DDoS attacks. The amplification effect lies in the fact that DNS ...
194
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FOIKS
2008
Springer
15 years 8 months ago
2008
Springer
Abstract In this paper we present a new rule-based approach for consistency preserving view updating in deductive databases. Based on rule transformations performed during schema d...
191
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AAAI
2010
15 years 8 months ago
2010
Top-k approximate querying on string collections is an important data analysis tool for many applications, and it has been exhaustively studied. However, the scale of the problem ...
196
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CCCG
2010
15 years 8 months ago
2010
Given a bounded universe {0, 1, . . . , U-1}, we show how to perform (successor) searches in O(log log ) expected time and updates in O(log log ) expected amortized time, where i...
175
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ECIR
2010
Springer
15 years 8 months ago
2010
Springer
Abstract. Pseudo-Relevance Feedback (PRF) assumes that the topranking n documents of the initial retrieval are relevant and extracts expansion terms from them. In this work, we int...