2486 search results - page 372 / 498 » Database and the Web |
108
Voted
VLDB
1998
ACM
15 years 5 months ago
1998
ACM
Many applications compute aggregate functions over an attribute (or set of attributes) to find aggregate values above some specified threshold. We call such queries iceberg querie...
121
Voted
SIGMOD
2011
ACM
14 years 3 months ago
2011
ACM
Facebook recently deployed Facebook Messages, its first ever user-facing application built on the Apache Hadoop platform. Apache HBase is a database-like layer built on Hadoop des...
113
Voted
ICIP
2001
IEEE
16 years 2 months ago
2001
IEEE
This work presents a novel approach to content-based image retrieval in categorical multimedia databases. The images are indexed using a combination of text and content descriptor...
209
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GIS
2008
ACM
16 years 1 months ago
2008
ACM
In this paper, we follow the role-based access control (RBAC) approach and extend it to provide for the dynamic association of roles with users. In our framework, privileges assoc...
94
Voted
WWW
2007
ACM
16 years 1 months ago
2007
ACM
We present an incremental algorithm for building a neighborhood graph from a set of documents. This algorithm is based on a population of artificial agents that imitate the way re...