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文献显性知识与隐性知识的区别

已有 9647 次阅读 2015-5-14 07:46 |个人分类:知识发现|系统分类:科研笔记

 

知识发现与信息分析的区别与联系 http://blog.sciencenet.cn/home.php?mod=space&uid=280034&do=blog&id=890951

 

肺癌与乳腺癌BRCA2基因关联的知识发现

http://blog.sciencenet.cn/home.php?mod=space&uid=280034&do=blog&id=889911

知识发现的知识点是文献中的隐含主题概念,属于隐性知识,就是从文献A与文献C中发现知识点B(文献中隐含的主题知识概念),这些知识点,做知识发现的人(情报人员或科研人员)事先一般是不知道的,例如:

Sem_filter:
Genes & Molecular Sequences, and Gene & Protein Names
3012 B-terms left after filter executed Wed May 13 03:09:25 2015

Viewed B-terms Wed May 13 03:24:14 2015
brca2

B-list on Wed May 13 03:30:34 2015
1 brca2
2 adiponectin
3 brca1
4 fhit
5 cox-2
6 toll receptor
7 promoter polymorphism
8 rankl
9 jnk
10 wnt

http://arrowsmith.psych.uic.edu/cgi-bin/arrowsmith_uic/view_b_txt.cgi?ID=24857

 

共词分析结果属于文献的显性知识,两个主题词出现在同一篇(同类)文献中,例如:

字段:主题词与主题词
记录数
占%
 01.genes, brca1与genes, brca2     5 11.628%
 02.breast neoplasms/genetics与genes, brca2     4 9.302%
 03.breast neoplasms/genetics与genes, brca1     3 6.977%
 04.genes, brca2与germ-line mutation     3 6.977%
 05.breast neoplasms/genetics与germ-line mutation     2 4.651%
 06.breast neoplasms/genetics与neoplasm proteins/genetics     2 4.651%
 07.breast neoplasms/genetics与ovarian neoplasms/genetics     2 4.651%
 08.breast neoplasms/genetics与transcription factors/genetics     2 4.651%
 09.breast neoplasms/pathology与mutation     2 4.651%
 10.genes, brca1与germ-line mutation     2 4.651%

 

字段:主题词与主题词
记录数
占%
 01.carcinoma, non-small-cell lung/genetics与lung neoplasms/genetics    84 9.700%
 02.carcinoma, non-small-cell lung/diagnosis与lung neoplasms/diagnosis     65 7.506%
 03.lung neoplasms/diagnosis与lung neoplasms/genetics     41 4.734%
 04.adenocarcinoma/genetics与lung neoplasms/genetics     38 4.388%
 05.adenocarcinoma/diagnosis与lung neoplasms/diagnosis     31 3.580%
 06.gene expression regulation, neoplastic与lung neoplasms/genetics    22 2.540%
 07.carcinoma, non-small-cell lung/metabolism与lung neoplasms/metabolism     21 2.425%
 08.lung neoplasms/genetics与tumor markers, biological/genetics     21 2.425%
 09.carcinoma, non-small-cell lung/drug therapy与lung neoplasms/drug therapy     20 2.309%
 10.lung neoplasms/genetics与mutation     20 2.309%

 



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