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Search Engine

Search Engine

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Search Engine Search Engine Presentation Transcript

  • Kuliah Pengantar Teknologi Informasi Oleh Coky Fauzi Alfi cokyfauzialfi.wordpress.comSearch Engine
  • Topics• Why Search the Web?• Alternative Methods for Finding Information• How Web Search Engine Work• What Search Engines Search• Major Search Engines• Searching with Google• Google Tricks
  • Why Search the Web?A simple answer is that the Web is toolarge and unorganized to find muchuseful information.
  • Alternative Methods for Finding Information• Typing in the web address of a known page (URL)• Search engines• Directories (or web catalogues)• Browsing
  • Web ‘addresses’ or URLsThe most efficient method of findinginformation on the internet is throughtyping the web address or URL directlyinto the web browser.
  • How do We Know the URL?• A word of mouth recommendation• From advertisement or company promotional literature• Simply making a good guess
  • How Web Search Engine WorkSearch engines use special automatic toolsknown as spiders, crawler or robots toindex web pages of registered sites.
  • What Search Engines Search• Content• Tags – Keyword – Description – Title – Heading – Links
  • What Search Engines Ignore• Frames• Scripts• Java Applets and Plug-Ins• Server-Generated Pages• Forms• Images• Deeply Linked Pages• Reorganization and Broken Links
  • Major Search Engines• Google – http://www.google.com• Yahoo – http://search.yahoo.com• Microsoft Bing – http://www.bing.com• AltaVista – http://www.altavista.com• Alltheweb – http://www.alltheweb.com
  • Alternative Search Engines• Vivísimo – http://www.vivisimo.com• Dogpile – http://www.dogpile.com• Ask.com or AskJeeves.com- http://www.ask.com• SurfWax – http://www.surfwax.com• Ixquick – http://www.ixquick.com
  • Mobile Search Engines• http://mobile.google.com• http://mobile.yahoo.com/search• http://m.bing.com
  • Searching with GoogleThink “full text”war of 1812 economic causes
  • Searching with GoogleSpecify exact phrases“tom bates”
  • Searching with GoogleExclude a wordproliferation –nuclear
  • Searching with GoogleInclude a wordobama +hussein
  • Searching with GoogleWeb page titleintitle:hybrid
  • Searching with GoogleWebsite or domainsite:whitehouse.gov
  • Searching with GoogleFile typefiletype:ppt site:edu “global warming”
  • Google Tricks1. Definitions define:wireless LAN
  • Google Tricks2. Calculator 26785*5764+45332-9674
  • Google Tricks3. Street Maps 9 Princeton St Boston MA 02128
  • Google Tricks4. Weather weather palembang
  • Interpreting the Results
  • When Not to Use Google• Google doesnt cluster results• Google isn’t good enough to find a persons email address• Google isnt the best place to find what an abbreviation stands for• Some topic-specific directories are simply more fine-tuned than Googles regular full-text search• When working on an in-depth research project (like a college thesis), Google doesnt help you catalog multiple search results, or let you take notes on interesting sites.
  • Web Catalogues or DirectoriesMassive online catalogs that areedited, sorted, and organized byhumans
  • Major Web Directories• http://directory.google.com• http://dir.yahoo.com• http://dmoz.org
  • Practical Tips for Managing Information1. Using bookmarks2. Printing information3. Saving text for subsequent reading or printing4. Saving an image or diagram
  • © 2011cokyfauzialfi.wordpress.comWhat’s Your Message?