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中国科学院文献情报中心机构知识库
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中国科学院成都文献情... [3]
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Shu Fang [4]
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山西省产学研合作专利态势分析及对策研究
期刊论文
情报工程, 2016, 卷号: 2, 期号: 3, 页码: 69-79
Authors:
付鑫金
;
李伟
;
许海云
;
方曙
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Submit date:2016/09/08
产学研
合作
专利计量
对策研究
山西省
基于专利文本分析的技术识别关键技术研究
会议论文
, 贵阳, 2015.7.21-24
Authors:
许海云
;
杨云秀
;
郭婷
;
方曙
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Submit date:2016/04/17
技术识别
主题挖掘
专利计量
文本分析
基于专利功效矩阵的技术主题关联分析及核心专利挖掘
期刊论文
情报学报, 2014, 期号: 2, 页码: 158-166
Authors:
许海云
;
方曙
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Submit date:2014/12/08
主题挖掘
专利计量
功效矩阵
关联规则
核心专利
有效专利失效速率测度方法研究
期刊论文
图书情报工作, 2014, 卷号: 58, 期号: 13, 页码: 90-94,74
Authors:
张娴
;
许海云
;
方曙
;
刘春江
;
曾荣强
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Submit date:2015/01/08
有效专利
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