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[目的 /意义]运用文本分析与可视化等方法绘制基本科学指标数据库(Essential Science Indicators,简称ESI)研究前沿的科学全景图谱,在此基础上绘制全球研究前沿视野下的纳米研究前沿图谱,分析中国在世界纳米前沿的科研表现。[方法 /过程]计算研究前沿间关联关系,利用OpenOrd布局算法可视化科学图谱,并根据图谱中研究前沿的位置关系自动识别研究前沿群。选取含纳米文章超过60%的研究前沿,结合专家判读绘制纳米研究前沿图谱。[结果 /结论]研究表明,科学图谱揭示的科学结构与作者先前的研究成果和业界已有科学图谱的分布较为一致,能有效揭示ESI研究前沿数据隐含的科学结构特征,反映科学前沿分布情况。以世界纳米前沿全貌图为基图,叠加中美在各研究前沿的论文份额,对比分析了中国和美国在世界纳米前沿上优势及发展重心的差异,结合专家研判给出对策建议,助力纳米领域的发展趋势研究,取得了实际应用价值。
[Purpose / Significance] Draw scientific scientific maps of the frontiers of Essential Science Indicators (ESI) using methods such as text analysis and visualization. Based on this, draw the frontiers of nanotechnology research in the global research frontiers, Scientific performance in the world’s nano frontier. [Methods / Processes] Compute the relationships between frontiers of research, visualize scientific maps using the OpenOrd layout algorithm, and automatically identify research frontiers based on positional relationships at the frontier of the map. Select the research frontier that contains more than 60% of the nano articles, and draw the forefront spectrum of nano research combined with expert interpretation. [Results / Conclusions] The research shows that the scientific structure revealed by scientific maps is consistent with the previous research results of the authors and the distribution of the scientific maps already existing in the industry, and can effectively reveal the implied scientific structure characteristics of frontiers of ESI research and reflect the distribution of scientific frontiers . Based on the picture of the world’s nanoscience frontier, the paper adds the share of Chinese and American papers in various research fronts, compares and analyzes the advantages and development priorities of China and the United States on the world’s nano-frontiers, and gives advice and suggestions The development trend of research, has achieved practical value.