6974 search results - page 276 / 1395 » Querying Semi-Structured Data |
159
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DAWAK
2005
Springer
16 years 6 days ago
2005
Springer
This paper proposes the compression of data in Relational Database Management Systems (RDBMS) using existing text compression algorithms. Although the technique proposed is general...
158
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VLDB
2001
ACM
15 years 11 months ago
2001
ACM
Queries navigate semistructured data via path expressions, and can be accelerated using an index. Our solution encodes paths as strings, and inserts those strings into a special i...
200
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SIGMOD
2010
ACM
15 years 6 months ago
2010
ACM
Histograms have been widely used for fast estimation of query result sizes in query optimization. In this paper, we propose a new histogram method, called the Skew-Tolerant Histog...
202
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EMNLP
2004
15 years 8 months ago
2004
Anticipating the availability of large questionanswer datasets, we propose a principled, datadriven Instance-Based approach to Question Answering. Most question answering systems ...
178
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AAAI
1998
15 years 8 months ago
1998
We present an approach for optimizing the performance of information agents by materializing useful information . A critical problem with information agents, particularly those ga...