NDLI: Detecting Fake Medical Web Sites Using Recursive Trust Labeling

Content Provider	ACM Digital Library
Author	Kaza, Siddharth Abbasi, Ahmed Zahedi, Fatemeh “Mariam”
Copyright Year	2012
Abstract	Fake medical Web sites have become increasingly prevalent. Consequently, much of the health-related information and advice available online is inaccurate and/or misleading. Scores of medical institution Web sites are for organizations that do not exist and more than 90% of online pharmacy Web sites are fraudulent. In addition to monetary losses exacted on unsuspecting users, these fake medical Web sites have severe public safety ramifications. According to a World Health Organization report, approximately half the drugs sold on the Web are counterfeit, resulting in thousands of deaths. In this study, we propose an adaptive learning algorithm called recursive trust labeling (RTL). RTL uses underlying content and graph-based classifiers, coupled with a recursive labeling mechanism, for enhanced detection of fake medical Web sites. The proposed method was evaluated on a test bed encompassing nearly 100 million links between 930,000 Web sites, including 1,000 known legitimate and fake medical sites. The experimental results revealed that RTL was able to significantly improve fake medical Web site detection performance over 19 comparison content and graph-based methods, various meta-learning techniques, and existing adaptive learning approaches, with an overall accuracy of over 94%. Moreover, RTL was able to attain high performance levels even when the training dataset composed of as little as 30 Web sites. With the increased popularity of eHealth and Health 2.0, the results have important implications for online trust, security, and public safety.
Starting Page	1
Ending Page	36
Page Count	36
File Format	PDF
ISSN	10468188
e-ISSN	15582868
DOI	10.1145/2382438.2382441
Volume Number	30
Issue Number	4
Journal	ACM Transactions on Information Systems (TOIS)
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2012-11-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Fake Web sites Health 2.0 Web mining Web spam Machine learning Medical fraud
Content Type	Text
Resource Type	Article
Subject	Computer Science Applications Information Systems Business, Management and Accounting

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