发明名称 |
METHOD FOR EXTRACTING FEATURE ITEM FROM DATA |
摘要 |
PROBLEM TO BE SOLVED: To provide a keyword extracting method which can extract keywords even from a short sentence with comparatively high precision. SOLUTION: Words which appear frequently are extracted from words in sentences in step S2-2, and keywords are selected from among the words based on the deviation of the co-occurrence probability distribution between each word and the words which appear frequently are provided in step S2-3. Theχ<2> test is used for verifying the significance in the deviation.
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申请公布号 |
JP2003067412(A) |
申请公布日期 |
2003.03.07 |
申请号 |
JP20010254905 |
申请日期 |
2001.08.24 |
申请人 |
MATSUO YUTAKA;ISHIZUKA MITSURU |
发明人 |
MATSUO YUTAKA;ISHIZUKA MITSURU |
分类号 |
G06F17/18;G06F17/30;(IPC1-7):G06F17/30 |
主分类号 |
G06F17/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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