This paper defines decomposition aggregation queries (DAQs) over this 3-role structure and shows how to process DAQs using aggregation rewritings. Processing ...
We describe the application of DAQs in integrating domain heterogeneous data sources, the new semantics of DAQ answers and the query translation algorithm ...
We describe the application of DAQs in integrating domain heterogeneous data sources, the new semantics of DAQ answers and the query translation algorithm ...
This work provides a suite of methods for extracting statistics that convey meaningful information about aggregate query answers in heterogeneous ...
We describe the application of DAQs in integrating domain heterogeneous data sources, the new semantics of DAQ answers and the query translation algorithm ...
Supporting domain heterogeneous data sources for semantic ...
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The new query answering framework, named “decomposition aggregation query (DAQ)” processing, integrates data sources holding information in different domains ...
The contribution of this paper is in the realization of semantic integration of heterogeneous sources of similar domain using QR decomposition, together with a ...
Users pose queries against the global schema, which are then mapped to the local schemata and an integration schema; the translator translates the decomposed ...
Integrating domain heterogeneous data sources using decomposition aggregation queries. Information Systems, 39(0), 2014. [26] Hongzhi Yin, Bin Cui, Jing Li ...
Integrating domain heterogeneous data sources using decomposition aggregation queries · Jian XuR. Pottinger. Computer Science. Information Systems. 2014. 9 ...