منابع مشابه
Cube : A relational Aggregation Operator
Many scientific computing tasks are too large to be processed quickly on one computer. Instead, the grid has become popular for a wide range of disciplines. Efficiently using the all the resources of the grid is a challenging, NP problem though. The authors introduced a new method for scheduling that accounted for data dependencies, a topic often ignored in job scheduling algorithms. They also ...
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Integrated information systems provide users with a single unified view to heterogeneous data sources. As the resolution of schema level conflicts and the detection of fuzzy duplicates has been looked at more comprehensively, the problem of resolving data level conflicts still remains. We propose a relational data fusion operator, which fuses tuples representing the same real world entity by re...
متن کاملData Cube : A relational Aggregation Operator
Many scientific computing tasks are too large to be processed quickly on one computer. Instead, the grid has become popular for a wide range of disciplines. Efficiently using the all the resources of the grid is a challenging, NP problem though. The authors introduced a new method for scheduling that accounted for data dependencies, a topic often ignored in job scheduling algorithms. They also ...
متن کاملThe Universal Net Composition Operator
Petri nets are frequently composed of given nets. Literature suggests a lot of different composition operators, for different purposes and different classes of Petri nets. Formal definitions are frequently surprisingly technical, not matching the intuitively very elegant composition of Petri nets in the framework of their graphical representation. This paper suggests the universal net compositi...
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Identifying similarities in large datasets is an essential operation in many applications such as bioinformatics, pattern recognition, and data integration. To make the underlying database system similarity-aware, the core relational operators have to be extended. Several similarity-aware relational operators have been proposed that introduce similarity processing at the database engine level, ...
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ژورنال
عنوان ژورنال: DAIMI Report Series
سال: 1989
ISSN: 2245-9316,0105-8517
DOI: 10.7146/dpb.v18i297.6691