Sciweavers

750 search results - page 91 / 150
» Aggregates in Possibilistic Databases
Sort
View
ECAI
2010
Springer
13 years 11 months ago
Extraction of Places Related to Flickr Tags
Geographic information systems use databases to map keywords to places. These databases are currently most often created by using a top-down approach based on the geographic defini...
Yukino Baba, Fuyuki Ishikawa, Shinichi Honiden
SIGMOD
2010
ACM
166views Database» more  SIGMOD 2010»
13 years 4 months ago
FAST: fast architecture sensitive tree search on modern CPUs and GPUs
In-memory tree structured index search is a fundamental database operation. Modern processors provide tremendous computing power by integrating multiple cores, each with wide vect...
Changkyu Kim, Jatin Chhugani, Nadathur Satish, Eri...
SIGMOD
2007
ACM
145views Database» more  SIGMOD 2007»
14 years 10 months ago
Why off-the-shelf RDBMSs are better at XPath than you might expect
To compensate for the inherent impedance mismatch between the relational data model (tables of tuples) and XML (ordered, unranked trees), tree join algorithms have become the prev...
Torsten Grust, Jan Rittinger, Jens Teubner
VLDB
1998
ACM
147views Database» more  VLDB 1998»
14 years 2 months ago
Architecture of Oracle Parallel Server
Oracle Parallel Server (OPS) is a shared disk RDBMS. We present a high level overview of the main architectural issues of OPS and their evolution throughout the releases of the Or...
Roger Bamford, D. Butler, Boris Klots, N. MacNaugh...
DOLAP
2003
ACM
14 years 3 months ago
Hierarchical dwarfs for the rollup cube
The data cube operator exemplifies two of the most important aspects of OLAP queries: aggregation and dimension hierarchies. In earlier work we presented Dwarf, a highly compress...
Yannis Sismanis, Antonios Deligiannakis, Yannis Ko...