研讨系统中的发言文本聚类及其可视化

研讨系统会产生大量的专家发言文本信息,对发言文本进行聚类分析并可视化展现聚类结果,可以引导专家思维,提高研讨效率。提出一种基于聚类的研讨文本分析及可视化方法。首先对专家发言文本进行分词,提取专家发言文本向量;再采用聚类算法对专家发言文本进行聚类分析,得到不同发言簇;最后在基于Web的研讨系统中实现研讨文本聚类,并采用D3方法对聚类结果进行可视化展现。实验结果表明,该方法能有效展现专家发言之间的相似性和聚集度,引导专家思维收敛并达成共识。

Measuring Effectiveness of COCOMO I and COCOMO II Using a Case Study

There are several software estimation models such as Line of Code, Function Point and COnstructive COst MOdel （COCOMO）. The original COCOMO model is one of the most widely practiced and popular among the software development community because of its flexible usage. It is a suite of models i.e., COnstructive Cost MOdel I and COnstructive Cost MOdel II. in this paper, we are evaluating the both models, to find out the level of efficiency they present and how they can be tailored to the needs of modem software development projects. We are applying COCOMO models on a case study of an e-commerce application that is built using Hyper Text Markup Language （HTML） and JavaScript. We will also shed light on the different components of each model, and how their Cost Drivers effect on the accuracy of cost estimations for software development projects.