549 search results - page 40 / 110 » Data Expiration and Aggregate Queries |
111
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ICSNC
2007
IEEE
15 years 6 months ago
2007
IEEE
RFID data are usually regarded as streaming data that are huge and change frequently because they are gathered continuously by numerous readers. RFID middleware filters the data a...
105
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GIS
2002
ACM
14 years 11 months ago
2002
ACM
Geographical information systems are more and more based on a DBMS with spatial extensions, which is also the case for the system described in this paper. The design and implementa...
PVLDB
2010
14 years 10 months ago
2010
This paper addresses the problem of explaining missing answers in queries that include selection, projection, join, union, aggregation and grouping (SPJUA). Explaining missing ans...
133
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PODS
2005
ACM
15 years 12 months ago
2005
ACM
There is growing interest in algorithms for processing and querying continuous data streams (i.e., data that is seen only once in a fixed order) with limited memory resources. Pro...
116
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DOLAP
2005
ACM
15 years 1 months ago
2005
ACM
Online Analytical Processing is a powerful framework for the analysis of organizational data. OLAP is often supported by a logical structure known as a data cube, a multidimension...