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» Representing and Querying Data Transformations
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VLDB
1989
ACM
104views Database» more  VLDB 1989»
15 years 5 months ago
Gral: An Extensible Relational Database System for Geometric Applications
: We describe the architecture of a relational databasesystem that is extensible by user-defined data types and operations, including relation operations. The central concept is to...
Ralf Hartmut Güting
QCQC
1998
Springer
173views Communications» more  QCQC 1998»
15 years 5 months ago
Quantum Wavelet Transforms: Fast Algorithms and Complete Circuits
The quantum Fourier transform (QFT), a quantum analog of the classical Fourier transform, has been shown to be a powerful tool in developing quantum algorithms. However, in classi...
Amir Fijany, Colin P. Williams
MM
1993
ACM
176views Multimedia» more  MM 1993»
15 years 5 months ago
A Digital On-Demand Video Service Supporting Content-Based Queries
Abstract–Video-on-demand represents a key demonstrative application for enabling multimedia technology in communication, database, and interface research. This application requir...
Thomas D. C. Little, Gulrukh Ahanger, R. J. Folz, ...
SIGMOD
2007
ACM
122views Database» more  SIGMOD 2007»
16 years 1 months ago
XQuery layers
XML is the data interoperability standard in many application domains. Therefore, an increasing number of researchers and professionals, who are not computer scientists (although ...
Daniele Braga, Alessandro Campi, Stefano Ceri, Pao...
WSDM
2010
ACM
210views Data Mining» more  WSDM 2010»
15 years 10 months ago
Towards Recency Ranking in Web Search
In web search, recency ranking refers to ranking documents by relevance which takes freshness into account. In this paper, we propose a retrieval system which automatically detect...
Anlei Dong, Yi Chang, Zhaohui Zheng, Gilad Mishne,...