Sciweavers

366 search results - page 19 / 74
» Efficient Query Reformulation in Peer-Data Management System...
Sort
View
JIIS
2002
99views more  JIIS 2002»
13 years 7 months ago
Efficient Management of Persistent Knowledge
Although computer speed has steadily increased and memory is getting cheaper, the need for storage managers to deal efficiently with applications that cannot be held into main memo...
Dimitris G. Kapopoulos, Michael Hatzopoulos, Panag...
PVLDB
2008
167views more  PVLDB 2008»
13 years 7 months ago
Managing and querying transaction-time databases under schema evolution
The old problem of managing the history of database information is now made more urgent and complex by fast spreading web information systems, such as Wikipedia. Our PRIMA system ...
Hyun Jin Moon, Carlo Curino, Alin Deutsch, Chien-Y...
ICDE
2006
IEEE
215views Database» more  ICDE 2006»
14 years 9 months ago
cgmOLAP: Efficient Parallel Generation and Querying of Terabyte Size ROLAP Data Cubes
In this demo we present the cgmOLAP server, the first fully functional parallel OLAP system able to build data cubes at a rate of more than 1 Terabyte per hour. cgmOLAP incorporat...
Ying Chen, Andrew Rau-Chaplin, Frank K. H. A. Dehn...
SIGMOD
2008
ACM
182views Database» more  SIGMOD 2008»
14 years 7 months ago
Angle-based space partitioning for efficient parallel skyline computation
Recently, skyline queries have attracted much attention in the database research community. Space partitioning techniques, such as recursive division of the data space, have been ...
Akrivi Vlachou, Christos Doulkeridis, Yannis Kotid...
MMDB
2003
ACM
94views Multimedia» more  MMDB 2003»
14 years 23 days ago
Improving image retrieval effectiveness via multiple queries
Conventional approaches to image retrieval are based on the assumption that relevant images are physically near the query image in some feature space. This is the basis of the clu...
Xiangyu Jin, James C. French