基于DTM模型和文本特征分析的基金项目新兴趋势探测研究* ——以NSF石墨烯领域为例
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徐路路, 王效岳, 白如江, 周彦廷
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Detecting Emerging Trends of Funds Based on DTM Model and Text Analytics: Case Study of NSF Graphene Field
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Xu Lulu,Wang Xiaoyue,Bai Rujiang,Zhou Yanting
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| 表7 ETDt计算结果 |
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| 主题 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | | Topic0 | | -0.46319 | -0.61416 | -0.29833 | -0.3394 | 0.06515 | 0.03358 | 0.94675 | 0.30842 | | Topic1 | -0.32022 | -0.18181 | -0.34176 | 0.2081 | 0.04723 | 0.07071 | 0.44242 | 0.04176 | 0.50498 | | Topic2 | 0.121281 | -0.18181 | -0.19852 | -0.3007 | -0.189 | 0.07071 | -0.03493 | 0.18292 | -0.41304 | | Topic3 | | | | -0.08365 | -0.02078 | 0.07071 | 0.03358 | 0.8453 | 0.2189 | | Topic4 | | | -0.34176 | -0.21225 | -0.15182 | -0.09671 | -0.02078 | -0.05205 | -0.18016 | | Topic5 | -0.32022 | 1.7942 | 0.4079 | -0.08622 | -0.3467 | -0.15182 | 0.44242 | -0.02975 | -0.04723 | | Topic6 | 0.37351 | 1.7942 | 0.20131 | 0.30842 | -0.24983 | -0.15182 | -0.28952 | -0.2448 | -0.32582 | | Topic7 | | | | -0.08365 | -0.3467 | -0.29603 | 0.03358 | 0.49377 | 0.2081 | | Topic8 | 0.37351 | 1.7942 | 0.20131 | 0.30842 | 0.8453 | 1.76703 | 0.50794 | 0.04176 | 1.19012 | | Topic9 | 0.12128 | 0.11612 | 0.20131 | 0.2081 | 0.91882 | -0.15182 | -0.28952 | -0.2448 | -0.45186 |
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