Hybrid characteristic selecting method for data excavation with redundant eliminating ability |
Title： |
| Hybrid characteristic selecting method for data excavation with redundant eliminating ability |
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Application Number： |
200710065196 |
Application Date： |
2007/04/06 |
Announcement Date： |
2007/09/05 |
Pub. Date： |
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Publication Number： |
101030219 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
G06F 17/30 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
Sun Hongbin, Wang Hao, Zhang Boming, Wu Wenchuan, Wang Kang |
Key Words： |
data excavation, redundant eliminating ability |
Abstract： |
A mixed character selecting method used in data excavation with redundant rejecting ability includes carrying out forward search on input attribute set F, using unified mutual information estimation means based on Pason window to calculate gain ratio for selecting character attribute, carrying out backward search on selected attribute set S, using unified mutual information estimation means based on Pason window to calculate information decrease value for dynamically rejecting redundant attribute off. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
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