基于问题—方法矩阵的文献新颖性评估方法

Evaluating Novelty of Scientific Literature Based on Question-Method Matrix

[目的/意义]基于科技文献构建问题—方法矩阵,探索科技文献研究内容新颖性评估方法,辅助科技查新应用。[方法/过程]对科技文献内容进行信息抽取,提取研究问题和方法内容文本并构建问题—方法矩阵。利用LDA模型对科技文献采用的问题与方法进行分类,将科技文献在问题—方法矩阵中定位并可视化。通过设定阈值划分区域,确定待评估科技文献研究问题和方法所在区域,进行新颖性评估分析,并通过实验验证该方法的有效性。[结果/结论]提出的基于问题—方法矩阵的文献新颖性评估方法通过可视化方式不仅有利于辅助科技查新判断,还可服务于创新选题。[局限]基于科技文献的研究问题与方法信息抽取和新颖性评估计算的自动化方法有待进一步研究。

[Purpose/significance]Based on text analysis of scientific literature,Question-Method matrix is constructed to evaluate the novelty of scientific research.[Method/process]This article extracts research question and method text from scientific literature to construct the Question-Method matrix.LDA model is adopted to classify themes of questions and methods;and then,scientific literature are positioned in the Question-Method matrix map.By setting threshold,Question-Method matrix are divided into four areas with different novelty grades.Experiments show the effectiveness of the proposed approach.[Result/conclusion]The representation and organization of scientific literature can help to improve the understanding and acquisition of scientific information.The proposed approach is beneficial to novelty evaluation and direction selection of scientific research.[Limitations]The automation of extracting research questions and methods and quantitative novelty evaluation need to be improved in future work.