549 search results - page 101 / 110 » Data Expiration and Aggregate Queries |
180
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ICDE
2006
IEEE
15 years 11 months ago
2006
IEEE
We consider the problem of creating a sample view of a database table. A sample view is an indexed, materialized view that permits efficient sampling from an arbitrary range query...
150
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ICDE
1997
IEEE
15 years 11 months ago
1997
IEEE
We propose a data model and a few algebraic operations that provide semantic foundation to multidimensional databases. The distinguishing feature of the proposed model is the symm...
90
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INFOCOM
2006
IEEE
15 years 3 months ago
2006
IEEE
— For a wide variety of sensor network environments, location information is unavailable or expensive to obtain. We propose a location-free, lightweight, distributed, and data-ce...
MOBISYS
2007
ACM
15 years 9 months ago
2007
ACM
The ease of deployment of battery-powered and mobile systems is pushing the network edge far from powered infrastructures. A primary challenge in building untethered systems is of...
PAMI
2008
14 years 9 months ago
2008
Abstract-Similarity searching often reduces to finding the k nearest neighbors to a query object. Finding the k nearest neighbors is achieved by applying either a depth-first or a ...