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» Bipolar Queries and Queries with Preferences
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AAAI
2008
13 years 10 months ago
Minimal Contraction of Preference Relations
Changing preferences is very common in real life. The expressive power of the operations of preference change introduced so far in the literature is limited to adding new informat...
Denis Mindolin, Jan Chomicki
EUSFLAT
2001
107views Fuzzy Logic» more  EUSFLAT 2001»
13 years 9 months ago
Introducing the aggregate "count" into flexible queries
Flexible querying aims at expressing preferences inside queries instead of strict requirements. We consider ordinary relational databases and flexible querying calling on fuzzy se...
Patrick Bosc, Ludovic Lietard
SIGMOD
2011
ACM
199views Database» more  SIGMOD 2011»
12 years 10 months ago
Schema-as-you-go: on probabilistic tagging and querying of wide tables
The emergence of Web 2.0 has resulted in a huge amount of heterogeneous data that are contributed by a large number of users, engendering new challenges for data management and qu...
Meiyu Lu, Divyakant Agrawal, Bing Tian Dai, Anthon...
EDBT
2011
ACM
209views Database» more  EDBT 2011»
12 years 11 months ago
An optimal strategy for monitoring top-k queries in streaming windows
Continuous top-k queries, which report a certain number (k) of top preferred objects from data streams, are important for a broad class of real-time applications, ranging from fi...
Di Yang, Avani Shastri, Elke A. Rundensteiner, Mat...
PVLDB
2010
108views more  PVLDB 2010»
13 years 6 months ago
Retrieving Top-k Prestige-Based Relevant Spatial Web Objects
The location-aware keyword query returns ranked objects that are near a query location and that have textual descriptions that match query keywords. This query occurs inherently i...
Xin Cao, Gao Cong, Christian S. Jensen