3241 search results - page 458 / 649 » Searching for Hidden-Web Databases |
187
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SIGMOD
2003
ACM
16 years 6 months ago
2003
ACM
With the growing importance of XML in data exchange, much research has been done in providing flexible query facilities to extract data from structured XML documents. In this pape...
159
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PODS
2006
ACM
16 years 6 months ago
2006
ACM
B-trees are the data structure of choice for maintaining searchable data on disk. However, B-trees perform suboptimally ? when keys are long or of variable length, ? when keys are...
159
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EDBT
2004
ACM
16 years 6 months ago
2004
ACM
In this paper we present HOPI, a new connection index for XML documents based on the concept of the 2?hop cover of a directed graph introduced by Cohen et al. In contrast to most o...
145
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EDBT
2006
ACM
16 years 6 months ago
2006
ACM
Navigational queries on Web-accessible life science sources pose unique query optimization challenges. The objects in these sources are interconnected to objects in other sources, ...
159
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EDBT
2006
ACM
16 years 6 months ago
2006
ACM
Abstract. Modern document collections often contain groups of documents with overlapping or shared content. However, most information retrieval systems process each document separa...