计算机科学 ›› 2015, Vol. 42 ›› Issue (5): 42-46.doi: 10.11896/j.issn.1002-137X.2015.05.008
刘金,吴 斌,陈 震,沈崇玮
LIU Jin-long, WU Bin, CHEN Zhen and SHEN Chong-wei
摘要： 近年来微博作为一种新兴的社交网络逐渐被广大用户使用。微博信息简短、更新迅速、包含信息量大,给微博用户获取信息带来了诸多不便,因此,利用影响力分析的手段找到具有较大影响力的微博用户具有重大意义。微博内容较传统的媒体信息具有较强的时效性和权威性,同时微博用语也极其不规范,这给微博用户影响力的分析带来了极大的困难。首先对获取的微博用户信息进行领域的划分,采用基于微博内容和用户关注的方式将用户归类到其所属的领域。其中,采用新词发现以及特征扩展的方法来提高划分结果的准确性。然后,对各个领域的用户进行影响力分析,提出3种影响力传播模型,用户最终的影响力大小根据3种模型的结果进行加权计算。最后对实验结果进行分析、比较,证明了计算用户影响力的方法能取得较优的结果。
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