web search engine

1. Search Engines

2. outline • Introduction • Tools and techniques • Challenges • Recent trends • Conclusion • References

3. Introduction • Search engines are an essential part of our daily lives • What is a search engine?

4. Brief History[1] • Archie, 1990 • ALIWEB, 1993 • YAHOO! SEARCH, 1994 • Google, 1998

5. Tools andTechniques (How it works)[2] Types: • Crawler-based • Human-Powered

6. Cont.Tools andTechniques (Advantages and Disadvantages)[3] • Crawler-based • Human-Powered

7. Cont.Tools andTechniques

8. Challenges Facing Search Engines [4] • Spam • Cloaking • Content Quality

9. Trends[5] • Proximity Search • Forcing Mobile-Friendly Sites • Focus on keywords and search rankings is decreasing [6]

10. References [1] https://www.wordstream.com/articles/internet-search-engines-history [2] https://searchenginewatch.com/sew/news/2065173/how-search-engines-work [3] Chris Sherman , Search EngineWatch Journal, February 18, 2004 [4] Monika R. Henzinger, Rajeev Motwani,Craig Silverstein.Challenges inWeb Search Engines [5] http://neilpatel.com/2015/11/05/6-seo-trends-that-will-sustain-your-search-rankings-and- organic-traffic/ YouTube video link: https://www.youtube.com/watch?v=BNHR6IQJGZs