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Internet Search Engines

Internet Search Engines. Noah A. Haban Eric LeBarron Adam Binder Seth Holubar Dan Kelly. Agenda. Technology Description and History SMCR B-C=V Competition What does the future hold? Summary and Questions. What is a search engine?. Information retrieval system

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Internet Search Engines

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  1. Internet Search Engines Noah A. Haban Eric LeBarron Adam Binder Seth Holubar Dan Kelly

  2. Agenda • Technology Description and History • SMCR • B-C=V • Competition • What does the future hold? • Summary and Questions

  3. What is a search engine? • Information retrieval system • Designed to find information on: • Computer System • World Wide Web • Corporate and Proprietary Networks • Personal Computer Description & History SMCR B–C=V Competition Future Summary

  4. Search Engines: The Early Years • First Internet website: http://info.cern.ch/ Basically an explanation of the WWW Left: Tim Berners-Lee, credited with creation of world wide web Right: Robert Cailliau, collaborator on WWW project. First web surfer Description & History SMCR B–C=V Competition Future Summary

  5. Pioneer Search Engines • Archie • Gopher • Veronica • Jughead • Wandex • Aliweb (still runs today) • Webcrawler • Lycos Description & History SMCR B–C=V Competition Future Summary

  6. Parts of a search engine • Spiders Follow links on web to request pages that have either not been indexed or have been updated since last index • Index (catalog) Large, slightly outdated collection of content which roughly represents the content of the web • Search Interface and relevancy software Accept query, Check relevancy, Gather pages, Request ads. Description & History SMCR B–C=V Competition Future Summary

  7. Parts of a search engine • Meta Tags • Allow specification of keywords/concepts • Helpful when words have more than one meaning • Spiders will search page and change meta tags if words do not match up. Prevents false categorizing with popular keywords. Description & History SMCR B–C=V Competition Future Summary

  8. Building a search • Query A word or combination of words the user submits to search a given topic. • Results Put in order according to other searches and page visitation frequency. Description & History SMCR B–C=V Competition Future Summary

  9. SMCR • Sender • Inform • Deceive • Get attention • Persuade • Educate • Message • Facts/Figures • Stories • Pictures, Video & Sound • Confidentiality • Complexity • Advertising • Channel • Computer • Internet • Webpage • Receivers • Internet Access • All • Ages • Education Level • Gender • Occupation Description SMCR B–C=V Competition Future Summary

  10. Receivers • Who uses search engines? From a March 2004 survey of 1,649 people: • 56% use search engines on a daily basis • Only 13% use different search engines for different types of searches • 57% use the same search engine. Of those people, the top 3 are Google, Yahoo and MSN. Description SMCR B–C=V Competition Future Summary

  11. Receivers • Who uses search engines? • Homemakers the finickiest (52% look at only first page, then move on) • Abandonment rates high among educators (40%), professionals (38%) and students (27%). • Age has been shown to make people less patient with searches • 49% use one or more search toolbars Description SMCR B–C=V Competition Future Summary

  12. Receivers • Who uses search engines? From this info we can conclude: • People of all ages use search engines and half use them on a daily basis • Most people are loyal to one search engine • Most people abandon a search after the first page or two of results • Top search engines have toolbars available Description SMCR B–C=V Competition Future Summary

  13. Benefits • Easy to use • Search vast databases • Sophisticated searching often available • Global Description SMCR B–C=V Competition Future Summary

  14. Costs • The web is growing quicker than it can be indexed. • Search engines slow down because of indexing new web pages • Queries currently limited to keywords, resulting in matching random words scattered across large pages (as opposed to limiting matches within a paragraph or phrase) Description SMCR B–C=V Competition Future Summary

  15. Costs • Many dynamically generated sites are not indexable, resulting in the “invisible web” • Some search engines do not rank by relevance, but rather by how much the websites pay • Hundreds of generated sites use tricks to manipulate a search engine into displaying them higher in results Description SMCR B–C=V Competition Future Summary

  16. Costs How important are the costs to users and how can usage be increased? • Somewhat important • Sites indexed more by relevancy • Use a “proximity-search” option, which uses a search bracket to limit matches within a paragraph or phrase • Eliminating linkspam in searches Description SMCR B–C=V Competition Future Summary

  17. B-C=V • Do the benefits outweigh the costs? Yes. • Easy • Less time and effort • Virtually endless result possibilities Description SMCR B–C=V Competition Future Summary

  18. The Competition Description SMCR B–C=V Competition Future Summary

  19. Share of Searches: Trends Description SMCR B–C=V Competition Future Summary

  20. What does it look like? Description SMCR B–C=V Competition Future Summary

  21. Google Description SMCR B–C=V Competition Future Summary

  22. Yahoo Description SMCR B–C=V Competition Future Summary

  23. MSN Description SMCR B–C=V Competition Future Summary

  24. DMOZ Description SMCR B–C=V Competition Future Summary

  25. Users = $$ Description SMCR B–C=V Competition Future Summary

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  30. Yahoo vs. Google vs. MSN Description SMCR B–C=V Competition Future Summary

  31. Other Competitors • dmoz.org • Human edited directory of the web. Constructed and maintained by community of volunteers • ChaCha.com • Human-powered search engine. Uses people to sort results by relevance. Description SMCR B–C=V Competition Future Summary

  32. DMOZ • Targeted at other search engines. • Powers directory listings of Netscape, AOL, Google, Lycos, HotBot, DirectHit, 100s of Others. • Benefit • Open Source Licensing = 100% Free • (No cost to submit a site, or to use data retrieved.) • Cost • Community Based • You Get What You Give! • Sign up to be an editor, get free tools to do it, and help make the Web a better place. Description SMCR B–C=V Competition Future Summary

  33. ChaCha • Why the name ChaCha? • Cha = Search in Chinese • ChaCha is a popular fast-paced dance • Benefits • Only Search Engine that provides Human guides that lead searchers (much like they would in the dance) to the most relevant results on the internet. • Creates its own database of successful searches and results to index from. • Costs • Free to use. (Paid for by advertising?) • Guides Earn $5-10 per search hour. Description SMCR B–C=V Competition Future Summary

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  38. Diffusion of Innovation Model Description SMCR B–C=V Competition Future Summary

  39. The Future of Search Engines • Google • Google Earth • Maps • G-mail • Desktop • Google Video • You Tube • Froogle • Toolbar • Customizable hompage • Yahoo! • Personals • Geocities • Travel • Finance • Hot Jobs • Yellow Pages • Yahoo! Mail • Yahoo! Messenger • MSN • City Guides • My MSN • Hotmail • Messenger Description SMCR B–C=V Competition Future Summary

  40. The Future of Search Engines • Current “top dog” is Google (Forbes Magazine, January 07) • Also Yahoo & MSN • Increase Traffic • Reduce Irrelevant Links • Offer More Services Description SMCR B–C=V Competition Future Summary

  41. The Future of Search Engines • Future “top dog” candidates include: • Metasearch sites, or sites which combine hits from multiple search engines rather than just one. www.profusion.com www.metacrawler.com • Human powered search engines www.chacha.com Description SMCR B–C=V Competition Future Summary

  42. Summary & ROT • As long the internet grows in size & complexity, search engines will be needed by users. • Search Engines make their money from Advertisers, who pay to have their web sites come up more often. • The most successful search engines provide users with more features than just searching. • Search Engines must continue to evolve and adapt to attract users. • Search Engines Feed and Supply each other. • Most people get used to a search engine, and stick with it. Description SMCR B–C=V Competition Future Summary

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