505 search results - page 69 / 101 » Approximate databases: a support tool for approximate reason... |
EDBT
2004
ACM
14 years 8 months ago
2004
ACM
Earlier work has demonstrated the effectiveness of in-network data aggregation in order to minimize the amount of messages exchanged during continuous queries in large sensor netwo...
EDBT
2008
ACM
14 years 8 months ago
2008
ACM
Estimating the number of distinct elements in a large multiset has several applications, and hence has attracted active research in the past two decades. Several sampling and sket...
WWW
2010
ACM
14 years 2 months ago
2010
ACM
In this paper, we address the problem of database selection for XML document collections, that is, given a set of collections and a user query, how to rank the collections based o...
VLDB
2005
ACM
14 years 1 months ago
2005
ACM
We propose a balanced tree structure overlay on a peer-to-peer network capable of supporting both exact queries and range queries efficiently. In spite of the tree structure caus...
ICDM
2002
IEEE
14 years 22 days ago
2002
IEEE
Frequent pattern mining has been studied extensively. However, the effectiveness and efficiency of this mining is often limited, since the number of frequent patterns generated i...