Titlebook: Advances in Databases and Information Systems; 15th International C Johann Eder,Maria Bielikova,A Min Tjoa Conference proceedings 2011 Spri

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homeostasis

https://doi.org/10.1007/978-94-017-1005-3 or they evaluate it bottom-up. In this paper, we present an approach that allows evaluating an XPath query in arbitrary directions, including a mixture of bottom-up and top-down direction. For each location step, it can be decided whether to evaluate it top-down or bottom-up, such that we can start

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Asperity

Cellular Automata: Research Towards Industryblem is formalized as follows: given a set of queries and a budget e.g., an available memory space, find the objects to materialize (views and/or indexes) that (1) satisfy the given budget and (2) minimize the query cost. In this paper, we depart from this setting by adopting a user-centric point of

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拥护

Birgitt Schönfisch,André de Roos observations of spatial-temporal data causes the user to be not able to accurately utilise recorded information. In literature, different methods have been mentioned to clean data which fall into the category of either deterministic and probabilistic approaches. However, we believe that to ensure t

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integrated

Alignment and Cellular Swarmingdifferent attributes and operations such as slicing and dicing. In-memory OLAP systems keep all relevant data in main memory and also support efficient updates of cube data, enabling interactive planning, forecasting, and what-if analysis. Since usually only the base data is stored and all aggregati

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