1782 search results - page 148 / 357 » Processing Queries over Distributed XML Databases |
WWW
2008
ACM
14 years 11 months ago
2008
ACM
This paper studies the problem of unified ranked retrieval of heterogeneous XML documents and Web data. We propose an effective search engine called Sailer to adaptively and versa...
SIGMOD
2003
ACM
14 years 10 months ago
2003
ACM
We discuss the design of an acquisitional query processor for data collection in sensor networks. Acquisitional issues are those that pertain to where, when, and how often data is...
EDBT
2004
ACM
14 years 10 months ago
2004
ACM
There is a growing interest in on-line algorithms for analyzing and querying data streams, that examine each stream element only once and have at their disposal, only a limited amo...
ADBIS
2004
Springer
14 years 3 months ago
2004
Springer
Abstract. Query reformulation techniques based on semantic knowledge have been used in two ways in database management systems, namely for query optimization and for data integrati...
PODS
2006
ACM
14 years 10 months ago
2006
ACM
Finding icebergs ? items whose frequency of occurrence is above a certain threshold ? is an important problem with a wide range of applications. Most of the existing work focuses ...