1529 search results - page 67 / 306 » Querying for meta knowledge |
137
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IJCAI
1993
15 years 7 months ago
1993
We consider the computational complexity of evaluating nested counterfactuals over a propositional knowledge base. Counterfactual implication models a statement "if p, then q...
271
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ICDE
2009
IEEE
16 years 8 months ago
2009
IEEE
A Business Process (BP) consists of some business activities undertaken by one or more organizations in pursuit of some business goal. Tools for querying and analyzing BP specifica...
174
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SIGMOD
2004
ACM
16 years 6 months ago
2004
ACM
We present several methods for mining knowledge from the query logs of the MSN search engine. Using the query logs, we build a time series for each query word or phrase (e.g., `Th...
174
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SIGIR
2006
ACM
16 years 8 days ago
2006
ACM
Combining the output from multiple retrieval sources over the same document collection is of great importance to a number of retrieval tasks such as multimedia retrieval, web retr...
195
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WIDM
2005
ACM
15 years 12 months ago
2005
ACM
In order to formulate a meaningful XML query, a user must have some knowledge of the schema of the XML documents to be queried. The query will succeed only if the schema of the ac...