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WWW
2007
ACM
16 years 7 months ago
Optimized query planning of continuous aggregation queries in dynamic data dissemination networks
Continuous queries are used to monitor changes to time varying data and to provide results useful for online decision making. Typically a user desires to obtain the value of some ...
Rajeev Gupta, Krithi Ramamritham
WWW
2007
ACM
16 years 7 months ago
Using Google distance to weight approximate ontology matches
Discovering mappings between concept hierarchies is widely regarded as one of the hardest and most urgent problems facing the Semantic Web. The problem is even harder in domains w...
Risto Gligorov, Warner ten Kate, Zharko Aleksovski...
WWW
2005
ACM
16 years 7 months ago
Executing incoherency bounded continuous queries at web data aggregators
Continuous queries are used to monitor changes to time varying data and to provide results useful for online decision making. Typically a user desires to obtain the value of some ...
Rajeev Gupta, Ashish Puri, Krithi Ramamritham
KDD
2004
ACM
139views Data Mining» more  KDD 2004»
16 years 7 months ago
Machine learning for online query relaxation
In this paper we provide a fast, data-driven solution to the failing query problem: given a query that returns an empty answer, how can one relax the query's constraints so t...
Ion Muslea
CHI
2007
ACM
16 years 7 months ago
Social practices in location-based collecting
The use of location-based technology to augment visitor experiences has received considerable attention over the years. In this paper, we take an alternative perspective on these ...
Kenton O'Hara, Tim Kindberg, Maxine Glancy, Lucian...