627 search results - page 75 / 126 » Efficient Top-k Query Evaluation on Probabilistic Data |
264
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GIS
2007
ACM
16 years 7 months ago
2007
ACM
Accurate and efficient integration of geospatial data is an important problem with applications in areas such as emergency response and urban planning. Some of the key challenges ...
173
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JSS
2008
15 years 6 months ago
2008
Many state-of-the-art selectivity estimation methods use query feedback to maintain histogram buckets, thereby using the limited memory efficiently. However, they are "reacti...
185
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DEBU
2008
15 years 6 months ago
2008
In this paper, we describe the TIMBER XML database system implemented at University of Michigan. TIMBER was one of the first native XML database systems, designed from the ground ...
240
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SIGMOD
2007
ACM
16 years 6 months ago
2007
ACM
A "sparse" data set typically has hundreds or even thousands of attributes, but most objects have non-null values for only a small number of these attributes. A popular ...
168
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DASFAA
2009
IEEE
15 years 10 months ago
2009
IEEE
Abstract. The suppression scheme is a solution for limited energy constraints in sensor networks. Temporal suppression, spatial suppression and spatio-temporal suppression are prop...