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DEXA
2008
Springer
154views Database» more  DEXA 2008»
13 years 12 months ago
Approximate Range-Sum Queries over Data Cubes Using Cosine Transform
In this research, we propose to use the discrete cosine transform to approximate the cumulative distributions of data cube cells' values. The cosine transform is known to have...
Wen-Chi Hou, Cheng Luo, Zhewei Jiang, Feng Yan, Qi...
VLDB
2004
ACM
112views Database» more  VLDB 2004»
14 years 10 months ago
Tracking set-expression cardinalities over continuous update streams
There is growing interest in algorithms for processing and querying continuous data streams (i.e., data that is seen only once in a fixed order) with limited memory resources. In i...
Sumit Ganguly, Minos N. Garofalakis, Rajeev Rastog...
DEXA
2009
Springer
201views Database» more  DEXA 2009»
14 years 4 months ago
Dynamic Query Processing for P2P Data Services in the Cloud
With the trend of cloud computing, data and computing are moved away from desktop and are instead provided as a service from the cloud. Data-as-a-service enables access to a wealth...
Pawel Jurczyk, Li Xiong
ICDE
2001
IEEE
141views Database» more  ICDE 2001»
14 years 11 months ago
Processing Queries with Expensive Functions and Large Objects in Distributed Mediator Systems
LeSelect is a mediator system which allows scientists to publish their resources (data and programs) so they can be transparently accessed. The scientists can typically issue quer...
Fabio Porto, Françoise Fabret, Luc Bouganim...
DBA
2006
173views Database» more  DBA 2006»
13 years 11 months ago
Object-Oriented Programming with Recursive Queries
: Recursive queries are required in many object-oriented database applications. Among them we can mention Bill-Of-Material (BOM), stock market dependencies, various kinds of networ...
Tomasz Pieciukiewicz, Krzysztof Stencel, Kazimierz...