191 search results - page 20 / 39 » Aggregation Queries in the Database-As-a-Service Model |
WWW
2008
ACM
13 years 9 months ago
2008
ACM
We propose a novel Partition Path-Based (PPB) grouping strategy to store compressed XML data in a stream of blocks. In addition, we employ a minimal indexing scheme called Block S...
SIGIR
2009
ACM
14 years 4 months ago
2009
ACM
Web search is increasingly exploiting named entities like persons, places, businesses, addresses and dates. Entity ranking is also of current interest at INEX and TREC. Numerical ...
BDA
2001
13 years 11 months ago
2001
Community Web Portals (e.g., digital libraries, vertical aggregators, infomediaries) have become quite popular nowadays in supporting specific communities of interest on corporate...
DEXA
2009
Springer
14 years 4 months ago
2009
Springer
Dimension hierarchies represent a substantial part of the data warehouse model. Indeed they allow decision makers to examine data at different levels of detail with On-Line Analyt...
GIS
2010
ACM
13 years 8 months ago
2010
ACM
This paper proposes an efficient, decentralized algorithm for determining the topological relationship between two regions monitored by a geosensor network. Many centralized algo...