一种基于集成学习的科研合作者潜力预测分类方法

A Classification Method of Scientific Collaborator Potential Prediction Based on Ensemble Learning

科研合作是学术成果非常重要的实现形式,很多高水平的研究成果通过合作实现.研究合作潜力可以为学者选择合作者提供指导,最大化科研效率.然而当前大数据爆发阻碍了合作者的有效选择.为了解决这个问题,基于学者文章大数据,经过特征分析和优化,综合考虑学者的文章、机构、研究兴趣等个人属性和相关属性,分别从文章标题、文章等级、文章数量、时间及署名序多维度构造样本特征,以文章所发表的期刊会议等级作为合作者序列对的样本标签,表示当前合作者的潜力高低,利用集成方法的强学习特性,提出了基于集成学习分类方法的科研合作者潜力预测模型.分析并构造对应于科研合作者潜力预测问题的特征集后,采用分类方法解决这一问题.实验中准确率、召回率、F1分数都远高于传统机器学习方法,并能以较少的样本和时间收敛于较高值(80%以上),说明了模型的优越性.

Scientific cooperation is a very important form of academic achievement. Many high-level researches are achieved through cooperation. Researching the collaboration potential can provide guidance for scholars to choose collaborators and maximize the efficiency of scientific research. However, the current outbursts of big data have hindered the effective choice of collaborators. In order to solve the problem, based on scholar-paper big data, after features analysis and optimization and comprehensively considering individual attributes and related attributes of scholars' papers, institutions, research interests, etc., sample features from various dimensions such as paper title, paper rank, paper number, time and coauthor order are constructed. Taking journal or conference level of papers as the sample tags of collaborators sequence pairs, which indicates the potential of current cooperators and make use of the strong learning characteristics of the ensemble methods, a scientific collaborator potential prediction model based on ensemble learning classification method is proposed. After analyzing and constructing the feature set that corresponds to the problem of scientific collaborator potential prediction, classification method is adopted to solve the problem. In experiments, the accuracy, recall rate, and F1 score are much higher than those of traditional machine learning methods and can converge to high values (above 80%) with few samples and little time, indicating the superiority of the proposed model.