文摘
We propose a model of coverage patterns and a methodology to extract coverage patterns from transactional databases. We have discussed how the coverage patterns are useful by considering the problem of banner advertisements placement in e-commerce web sites. Normally, advertiser expects that the banner advertisement should be displayed to a certain percentage of web site visitors. On the other hand, to generate more revenue for a given web site, the publisher has to meet the coverage demands of several advertisers by providing appropriate sets of web pages. Given web pages of a web site, a coverage pattern is a set of pages visited by a certain percentage of visitors. The coverage patterns discovered from click-stream data could help the publisher in meeting the demands of several advertisers. The efficiency and advantages of the proposed approach is shown by conducting experiments on real world click-stream data sets.