5221 search results - page 191 / 1045 » An On-line Problem Database |
174
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WWW
2009
ACM
16 years 6 months ago
2009
ACM
To deal with the problem of empty or too little answers returned from a Web database in response to a user query, this paper proposes a novel approach to provide relevant and rank...
157
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SIGMOD
2001
ACM
16 years 6 months ago
2001
ACM
Over the last decades, improvements in CPU speed have outpaced improvements in main memory and disk access rates by orders of magnitude, enabling the use of data compression techn...
194
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SIGMOD
2001
ACM
16 years 6 months ago
2001
ACM
Similarity search in large time series databases has attracted much research interest recently. It is a difficult problem because of the typically high dimensionality of the data....
181
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ICDE
2010
IEEE
16 years 6 months ago
2010
IEEE
Estimation via sampling out of highly selective join queries is well known to be problematic, most notably in online aggregation. Without goal-directed sampling strategies, samples...
174
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DEBU
2010
15 years 6 months ago
2010
Databases supporting time dependent and continuously changing geometries, called moving objects databases, have been studied for about 15 years. The field has been flourishing and...