搜索引擎技术（PPT讲稿）Web Spam

Web spam ●●●●● 2008.1220·

Web Spam 2008.12.20

●●● ●●●● ●●●●● ●●●● Outline ●●●●● ●●●● o Motivation ● ntroduction to Web Spam ● Web Spam techniques ● Web Spam Detection ● Conclusions

Outline ⚫ Motivation ⚫ Introduction to Web Spam ⚫ Web Spam techniques ⚫ Web Spam Detection ⚫ Conclusions

●●● ●●●● ●●●●● ●●●● Outline ●●●●● ●●●● ● Motivation o Introduction to Web Spam ● Web Spam Techniques ● Web Spam Detection Conclusions

Outline ⚫ Motivation ⚫ Introduction to Web Spam ⚫ Web Spam Techniques ⚫ Web Spam Detection ⚫ Conclusions

●●● ●●●● ●●●●● ●●●● ●●●●● Motivation ●●●● ●●●● Increased exposure on the World Wide Web may yield significant financial gains E-commerce is rapidly growing Projected to $329 billion by 2010: 13% of all US retail sales ● More traffic> more money Large fraction of traffic from Search Engines Increase Search Engine referrals ● Place ads Provide genuinely better content ● Create Web spam

Motivation ⚫ Increased exposure on the World Wide Web may yield significant financial gains ⚫ E-commerce is rapidly growing ⚫ Projected to $329 billion by 2010;13% of all US retail sales ⚫ More traffic → more money ⚫ Large fraction of traffic from Search Engines ⚫ Increase Search Engine referrals: ⚫ Place ads ☺ ⚫ Provide genuinely better content ☺ ⚫ Create Web spam … 

●●● ●●●● ●●●●● ●●●● Outline ●●●●● ●●●● ● Motivation e Introduction to Web Spam ● Web Spam Techniques ● Web Spam Detection Conclusions

Outline ⚫ Motivation ⚫ Introduction to Web Spam ⚫ Web Spam Techniques ⚫ Web Spam Detection ⚫ Conclusions