2554 search results - page 315 / 511 » Keyword query cleaning |
248
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SIGMOD
2007
ACM
16 years 6 months ago
2007
ACM
A "sparse" data set typically has hundreds or even thousands of attributes, but most objects have non-null values for only a small number of these attributes. A popular ...
189
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PODS
2008
ACM
16 years 6 months ago
2008
ACM
We consider the navigational core of XPath, extended with two operators: the Kleene star for taking the transitive closure of path expressions, and a subtree relativisation operat...
172
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EDBT
2008
ACM
16 years 6 months ago
2008
ACM
Data Stream Management Systems (DSMSs) must support optimized execution scheduling of multiple continuous queries on massive, and frequently bursty, data streams. Previous approac...
154
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MOBIHOC
2006
ACM
16 years 6 months ago
2006
ACM
Tag identification is an important tool in RFID systems with applications for monitoring and tracking. A RFID reader recognizes tags through communication over a shared wireless c...
172
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WSDM
2010
ACM
16 years 4 months ago
2010
ACM
We study the fundamental problem of computing distances between nodes in large graphs such as the web graph and social networks. Our objective is to be able to answer distance que...