| 摘要 |
PROBLEM TO BE SOLVED: To specify the cause of a result in a system for processing stream data. SOLUTION: The stream data processing system successively outputs results by executing a plurality of preset queries for stream data. The plurality of queries include first, second and third queries. A first intermediate result is output by executing the first query, a second intermediate result is output by executing the second query, and a result is output by executing the third query based on the first intermediate result and the second intermediate result. From first stream data, first concerned input information concerned in the first intermediate result is extracted, second concerned input information concerned in the second intermediate result is extracted, third concerned input information concerned in the result is extracted, and the system stores the result and the extracted third concerned input information in association with each other. COPYRIGHT: (C)2011,JPO&INPIT
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