目前,互联网中发布的Web服务大都通过自然语言进行描述,这种非结构化的描述方式为机器进行自动分析与处理带来了极大的困难.如何提高服务发现的效率和精确率,已成为服务计算领域的研究热点之一.服务聚类是服务发现的重要支撑技术,通过...目前,互联网中发布的Web服务大都通过自然语言进行描述,这种非结构化的描述方式为机器进行自动分析与处理带来了极大的困难.如何提高服务发现的效率和精确率,已成为服务计算领域的研究热点之一.服务聚类是服务发现的重要支撑技术,通过将语义相似的服务加以聚类和组织,有助于改进服务发现的效果.当前的服务聚类技术主要采用LDA(潜式狄里克雷分布)和K-means等模型在同一领域下进行工作,利用这些方法进行服务聚类时还存在一定的局限性,例如,未充分利用词汇间的语义关系进行降维,从而导致服务发现的效果不够理想.针对该问题,本文使用神经网络模型(word2vec模型)获得服务描述中的同义词表并生成领域特征词集,来最大限度的降低服务特征向量维度;在此基础上,提出S-LDA(Semantic Latent Dirichlet Allocation)模型对同一领域的服务进行聚类,由此构建了一个面向领域的Web服务聚类框架(Domain Semantic aided Web Service Clustering,DSWSC).在ProgrammableWeb网站上发布的服务数据集开展的实验表明,与LDA和K-means等方法相比,本文方法在熵、聚类纯度和F指标上均取得了明显效果,有助于提高服务搜索的准确率.展开更多
In order to accurately identify the characters associated with consumption behavior of apparel online shopping, a typical B/ C clothing enterprise in China was chosen. The target experimental database containing 2000 ...In order to accurately identify the characters associated with consumption behavior of apparel online shopping, a typical B/ C clothing enterprise in China was chosen. The target experimental database containing 2000 data records was obtained based on web service logs of sample enterprise. By means of clustering algorithm of Clementine Data Mining Software, K-means model was set up and 8 clusters of consumer were concluded. Meanwhile, the implicit information existed in consumer's characters and preferences for clothing was found. At last, 31 valuable association rules among casual wear, formal wear, and tie-in products were explored by using web analysis and Aprior algorithm. This finding will help to better understand the nature of online apparel consumption behavior and make a good progress in personalization and intelligent recommendation strategies.展开更多
文摘目前,互联网中发布的Web服务大都通过自然语言进行描述,这种非结构化的描述方式为机器进行自动分析与处理带来了极大的困难.如何提高服务发现的效率和精确率,已成为服务计算领域的研究热点之一.服务聚类是服务发现的重要支撑技术,通过将语义相似的服务加以聚类和组织,有助于改进服务发现的效果.当前的服务聚类技术主要采用LDA(潜式狄里克雷分布)和K-means等模型在同一领域下进行工作,利用这些方法进行服务聚类时还存在一定的局限性,例如,未充分利用词汇间的语义关系进行降维,从而导致服务发现的效果不够理想.针对该问题,本文使用神经网络模型(word2vec模型)获得服务描述中的同义词表并生成领域特征词集,来最大限度的降低服务特征向量维度;在此基础上,提出S-LDA(Semantic Latent Dirichlet Allocation)模型对同一领域的服务进行聚类,由此构建了一个面向领域的Web服务聚类框架(Domain Semantic aided Web Service Clustering,DSWSC).在ProgrammableWeb网站上发布的服务数据集开展的实验表明,与LDA和K-means等方法相比,本文方法在熵、聚类纯度和F指标上均取得了明显效果,有助于提高服务搜索的准确率.
基金Scientific Research Program Funded by Shaanxi Provincial Education Department,China(No.2013JK0749)
文摘In order to accurately identify the characters associated with consumption behavior of apparel online shopping, a typical B/ C clothing enterprise in China was chosen. The target experimental database containing 2000 data records was obtained based on web service logs of sample enterprise. By means of clustering algorithm of Clementine Data Mining Software, K-means model was set up and 8 clusters of consumer were concluded. Meanwhile, the implicit information existed in consumer's characters and preferences for clothing was found. At last, 31 valuable association rules among casual wear, formal wear, and tie-in products were explored by using web analysis and Aprior algorithm. This finding will help to better understand the nature of online apparel consumption behavior and make a good progress in personalization and intelligent recommendation strategies.