Stream data processing system and method for avoiding...

Details Stream data processing system and method for avoiding... Stream data processing system and method for avoiding...

2006-11-29

2009-02-10

Lee, Wilson (Department: 2163)

Data processing: database and file management or data structures

Database design

Data structure types

C707S793000

Reexamination Certificate

active

07490078

ABSTRACT:
Provided is a stream data processing system and method for avoiding duplication of data process. The system including: an evaluation result storing unit for updating and storing a query condition evaluation result; a window evaluating unit for performing window evaluation; a data separating unit for separating data into new data and duplication input data; a reuse result extracting unit for receiving duplication input data from the data separating unit and extracting a query condition evaluation result; a query condition evaluating unit for receiving new data from the data separating unit, performing query condition evaluation and creating a query condition evaluation result; and a result organizing unit for receiving the query condition evaluation result, merging, outputting and transmitting the query condition evaluation result to the evaluation result storing unit.

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Arasu, A., et al., “The CQL continuous Query Language: Semantic Foundations and Query Execution.” 2003.Stanford University Technical Report.
Li, J., et al., “Semantics and Evaluation Techniques for Window Aggregates in Data streams.” 2005.SIGMOD 2005, pp. 311-322.
KIPO Notice of Patent Grant dated Feb. 26, 2008 for the corresponding application KR 10-2006-0016335.

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