Adaptive Web Sites Authors : Mike Perkowitz, Oren Etzioni Source : Communications of the ACM, Volume 43 Issue 8, 2000 Speaker :Li-Ya Liao Adviser : Ku-Yaw Chang

Outline Introduction Web management assistant Conclusion 2010/4/221

Introduction Designing a complex web site is difficult Must anticipate users’ needs Users Different views of the site’s information Needs may change over time Usage patterns may violate initial expectation Web sites Too often fossils cast in HTML 2010/4/222

Introduction Understanding how users View the data Use the site For a complex site Tests are expensive and time-consuming Logs contain massive amounts of data 2010/4/223

Outline Introduction Web management assistant Conclusion 2010/4/224

Web management assistant This paper proposes a system Web management assistant Process massive amounts of data about site usage Suggest useful adaptation Develop adaptive Web sites Semi-automatically improve their organization and presentation By learning from visitor access patterns 2010/4/225

Web management assistant Various approaches to adaptive Web sites Automated tour guides to personalized recommendation Charting the “footprints’’ left by visitors 2010/4/226

Common questions 1/4 What is the division of labor between the automated assistant and the human Web master? Fully manual Fully automated Semi-automated 2010/4/227

Common questions 2/4 Customization or transformation? Customization is adapting the site’s presentation Needs of individual information Changes impact only that single user Transformation is improving the site’s structure Interactions with all visitors 2010/4/228

Common questions 3/4 What aspects of the Web site are open to change? Yahoo Stocks in the user’s portfolio Weather report to receive 2010/4/229

Common questions 4/4 Are adaptations based on the content of pages or people’s navigational choices? Uses content-based adaptation organizes and presents Content of pages What the pages say and what they are about Access-based adaptation Uses the visitors have interacted with the site to guide 2010/4/2210

Web management assistant Index Page is a page Consist of links to a set of pages Cover a particular topic Define problem Given a Web site and a visitor access log IP, URL, Time 2010/4/2211

Web management assistant Subproblems What is the content of the index page? Does it have a coherent topic? What should its title be? 2010/4/2212

Web management assistant 2010/4/2213 The inner workings of IndexFinder

Web management assistant 2010/4/2214 IndexFinder suggests candidate index pages to the Web master

Outline Introduction Web management assistant Conclusion 2010/4/2215

Conclusion Deploying IndexFinder Test IndexFinder and compared user response Other algorithms and human-authored index pages 2010/4/2216

Conclusion Result 2010/4/2217

The End 2010/4/2218