We propose an algorithm for learning hierarchical user interest models according to the Web pages users have browsed. In this algorithm, the interests of a user are represented into a tree which is called a user inter...We propose an algorithm for learning hierarchical user interest models according to the Web pages users have browsed. In this algorithm, the interests of a user are represented into a tree which is called a user interest tree, the content and the structure of which can change simultaneously to adapt to the changes in a user＇s interests. This expression represents a user＇s specific and general interests as a continuurn. In some sense, specific interests correspond to shortterm interests, while general interests correspond to longterm interests. So this representation more really reflects the users＇ interests. The algorithm can automatically model a us er＇s multiple interest domains, dynamically generate the in terest models and prune a user interest tree when the number of the nodes in it exceeds given value. Finally, we show the experiment results in a Chinese Web Site.展开更多
Industrial Agglomeration and Cluster Strategy in China Authors: Houkai WEI et al.Year: 2008Publisher: Economy&Management Publishing House,Beijing ISBN: 978-7-5096-0290-4(450 pages,in Chinese)An industrial cluster ...Industrial Agglomeration and Cluster Strategy in China Authors: Houkai WEI et al.Year: 2008Publisher: Economy&Management Publishing House,Beijing ISBN: 978-7-5096-0290-4(450 pages,in Chinese)An industrial cluster is more than an organizational mode that emerges out of the modern economy. In ancient China,the ceramic production in Jingdezhen,embroidery in Suzhou,the tea markets in Hangzhou,etc.,were all good examples of industrial clusters. However,as the planned economic system was gradually implemented after the founding of People’s Republic of China。展开更多
基金Supported by the National Natural Science Funda-tion of China (69973012 ,60273080)
文摘We propose an algorithm for learning hierarchical user interest models according to the Web pages users have browsed. In this algorithm, the interests of a user are represented into a tree which is called a user interest tree, the content and the structure of which can change simultaneously to adapt to the changes in a user＇s interests. This expression represents a user＇s specific and general interests as a continuurn. In some sense, specific interests correspond to shortterm interests, while general interests correspond to longterm interests. So this representation more really reflects the users＇ interests. The algorithm can automatically model a us er＇s multiple interest domains, dynamically generate the in terest models and prune a user interest tree when the number of the nodes in it exceeds given value. Finally, we show the experiment results in a Chinese Web Site.
文摘Industrial Agglomeration and Cluster Strategy in China Authors: Houkai WEI et al.Year: 2008Publisher: Economy&Management Publishing House,Beijing ISBN: 978-7-5096-0290-4(450 pages,in Chinese)An industrial cluster is more than an organizational mode that emerges out of the modern economy. In ancient China,the ceramic production in Jingdezhen,embroidery in Suzhou,the tea markets in Hangzhou,etc.,were all good examples of industrial clusters. However,as the planned economic system was gradually implemented after the founding of People’s Republic of China。
