9414 search results - page 543 / 1883 » Adaptive Query Processing |
317
Voted
ICDE
2009
IEEE
16 years 8 months ago
2009
IEEE
Keyword queries enjoy widespread usage as they represent an intuitive way of specifying information needs. Recently, answering keyword queries on graph-structured data has emerged ...
409
Voted
SIGMOD
2006
ACM
16 years 6 months ago
2006
ACM
Given a dataset P and a preference function f, a top-k query retrieves the k tuples in P with the highest scores according to f. Even though the problem is well-studied in convent...
182
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SIGIR
2009
ACM
16 years 1 months ago
2009
ACM
Pseudo-relevance feedback (PRF) via query-expansion has been proven to be effective in many information retrieval (IR) tasks. In most existing work, the top-ranked documents from...
184
Voted
PODS
2010
ACM
15 years 11 months ago
2010
ACM
The notion of certain answers arises when one queries incompletely specified databases, e.g., in data integration and exchange scenarios, or databases with missing information. W...
157
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DEXA
1999
Springer
15 years 11 months ago
1999
Springer
: In an extensible database system, evaluation of a query plan is done in cooperation between a collection of operator implementation functions and a component of the DBMS that we ...