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WWW
2010
ACM
13 years 11 months ago
Data summaries for on-demand queries over linked data
Typical approaches for querying structured Web Data collect (crawl) and pre-process (index) large amounts of data in a central data repository before allowing for query answering....
Andreas Harth, Katja Hose, Marcel Karnstedt, Axel ...
GIS
2008
ACM
14 years 7 months ago
The multi-rule partial sequenced route query
Trip planning search (TPS) represents an important class of queries in Geographic Information Systems (GIS). In many real-world applications, TPS requests are issued with a number...
Haiquan Chen, Wei-Shinn Ku, Min-Te Sun, Roger Zimm...
PODS
2007
ACM
159views Database» more  PODS 2007»
14 years 6 months ago
Generalized hypertree decompositions: np-hardness and tractable variants
The generalized hypertree width GHW(H) of a hypergraph H is a measure of its cyclicity. Classes of conjunctive queries or constraint satisfaction problems whose associated hypergr...
Georg Gottlob, Thomas Schwentick, Zoltán Mi...
WWW
2004
ACM
14 years 6 months ago
Edgecomputing: extending enterprise applications to the edge of the internet
Content delivery networks have evolved beyond traditional distributed caching. With services such as Akamai's EdgeComputing it is now possible to deploy and run enterprise bu...
Andy Davis, Jay Parikh, William E. Weihl
EDBT
2009
ACM
106views Database» more  EDBT 2009»
13 years 9 months ago
AlphaSum: size-constrained table summarization using value lattices
Consider a scientist who wants to explore multiple data sets to select the relevant ones for further analysis. Since the visualization real estate may put a stringent constraint o...
K. Selçuk Candan, Huiping Cao, Yan Qi 0002,...