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DOLAP
2003
ACM
14 years 1 months ago
Hierarchical dwarfs for the rollup cube
The data cube operator exemplifies two of the most important aspects of OLAP queries: aggregation and dimension hierarchies. In earlier work we presented Dwarf, a highly compress...
Yannis Sismanis, Antonios Deligiannakis, Yannis Ko...
ECCV
2010
Springer
13 years 9 months ago
Location Recognition Using Prioritized Feature Matching
We present a fast, simple location recognition and image localization method that leverages feature correspondence and geometry estimated from large Internet photo collections. Suc...
Yunpeng Li, Noah Snavely, Daniel P. Huttenlocher
TKDE
2010
189views more  TKDE 2010»
13 years 6 months ago
Projective Distribution of XQuery with Updates
—We investigate techniques to automatically decompose any XQuery query—including updating queries specified by the XQuery Update Facility (XQUF)—into subqueries, that can be ...
Ying Zhang, Nan Tang, Peter A. Boncz
SIGMOD
2011
ACM
297views Database» more  SIGMOD 2011»
12 years 11 months ago
Graph cube: on warehousing and OLAP multidimensional networks
We consider extending decision support facilities toward large sophisticated networks, upon which multidimensional attributes are associated with network entities, thereby forming...
Peixiang Zhao, Xiaolei Li, Dong Xin, Jiawei Han
ICDE
2001
IEEE
121views Database» more  ICDE 2001»
14 years 9 months ago
Model-Based Mediation with Domain Maps
We propose an extension to current view-based mediator systems called model-based mediation, in which views are defined and executed at the level of conceptual models (CMs) rather...
Amarnath Gupta, Bertram Ludäscher, Maryann E....