726 search results - page 45 / 146 » Capacity-Constrained Query Formulation |
129
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IS
2007
15 years 2 months ago
2007
Preference queries are relational algebra or SQL queries that contain occurrences of the winnow operator (find the most preferred tuples in a given relation). Such queries are pa...
138
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CIKM
2009
Springer
15 years 9 months ago
2009
Springer
Search engines that support structured documents typically support structure created by the author (e.g., title, section), and may also support structure added by an annotation pr...
96
Voted
SIGIR
1996
ACM
15 years 6 months ago
1996
ACM
We present a deductive data model for concept-based query expansion. It is based abstraction levels: the conceptual, the expression and the occurrence level. Concepts and their re...
IIR
2010
15 years 3 months ago
2010
In this work we propose a comparative study of the effects of a continuous model update on the effectiveness of wellknown query recommendation algorithms. In their original formul...
113
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KES
2008
Springer
15 years 2 months ago
2008
Springer
A great deal of work has been carried out in recent years to facilitate access to data and information available on the Web. Proposals converge in two additional areas which consis...