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DOLAP
2004
ACM
14 years 1 months ago
Evaluating XML-extended OLAP queries based on a physical algebra
In today’s OLAP systems, integrating fast changing data, e.g., stock quotes, physically into a cube is complex and time-consuming. The widespread use of XML makes it very possib...
Xuepeng Yin, Torben Bach Pedersen
ICTAI
2002
IEEE
14 years 18 days ago
Context Query in Information Retrieval
It is observed that there is an important query requirement missing for search engines. With the wide variation of domain knowledge and user's interest, a user would like to ...
Chi-Hung Chi, Chen Ding, Kwok-Yan Lam
SSD
2009
Springer
128views Database» more  SSD 2009»
14 years 6 days ago
TOQL: Temporal Ontology Querying Language
We introduce TOQL, a query language for querying time information in ontologies. TOQL is a high level query language that handles ontologies almost like relational databases. Queri...
Evdoxios Baratis, Euripides G. M. Petrakis, Sotiri...
SSD
1993
Springer
112views Database» more  SSD 1993»
13 years 11 months ago
A Storage and Access Architecture for Efficient Query Processing in Spatial Database Systems
: Due to the high complexity of objects and queries and also due to extremely large data volumes, geographic database systems impose stringent requirements on their storage and acc...
Thomas Brinkhoff, Holger Horn, Hans-Peter Kriegel,...
ICDE
2009
IEEE
178views Database» more  ICDE 2009»
13 years 5 months ago
Efficient Query Evaluation over Temporally Correlated Probabilistic Streams
Many real world applications such as sensor networks and other monitoring applications naturally generate probabilistic streams that are highly correlated in both time and space. ...
Bhargav Kanagal, Amol Deshpande