Search Engine

1. Kuliah Pengantar Teknologi Informasi
Oleh Coky Fauzi Alfi
cokyfauzialfi.wordpress.com
Search Engine

2. 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

3. Why Search the Web?
A simple answer is that the Web is too
large and unorganized to find much
useful information.

4. Alternative Methods for Finding
Information
• Typing in the web address of a known page
(URL)
• Search engines
• Directories (or web catalogues)
• Browsing

5. Web ‘addresses’ or URLs
The most efficient method of finding
information on the internet is through
typing the web address or URL directly
into the web browser.

6. How do We Know the URL?
• A word of mouth recommendation
• From advertisement or company
promotional literature
• Simply making a good guess

7. How Web Search Engine Work
Search engines use special automatic tools
known as spiders, crawler or robots to
index web pages of registered sites.

9. What Search Engines Search
• Content
• Tags
– Keyword
– Description
– Title
– Heading
– Links

11. What Search Engines Ignore
• Frames
• Scripts
• Java Applets and Plug-Ins
• Server-Generated Pages
• Forms
• Images
• Deeply Linked Pages
• Reorganization and Broken Links

12. 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

13. 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

14. Mobile Search Engines
• http://mobile.google.com
• http://mobile.yahoo.com/search
• http://m.bing.com

15. Searching with Google
Think “full text”
war of 1812 economic causes

16. Searching with Google
Specify exact phrases
“tom bates”

17. Searching with Google
Exclude a word
proliferation –nuclear

18. Searching with Google
Include a word
obama +hussein

19. Searching with Google
Web page title
intitle:hybrid

20. Searching with Google
Website or domain
site:whitehouse.gov

21. Searching with Google
File type
filetype:ppt site:edu “global warming”

22. Google Tricks
1. Definitions
define:wireless LAN

23. Google Tricks
2. Calculator
26785*5764+45332-9674

24. Google Tricks
3. Street Maps
9 Princeton St Boston MA 02128

25. Google Tricks
4. Weather
weather palembang

26. Interpreting the Results

27. When Not to Use Google
• Google doesn't cluster results
• Google isn’t good enough to find a person's email address
• Google isn't the best place to find what an abbreviation
stands for
• Some topic-specific directories are simply more fine-tuned
than Google's regular full-text search
• When working on an in-depth research project (like a college
thesis), Google doesn't help you catalog multiple search
results, or let you take notes on interesting sites.

28. Web Catalogues or Directories
Massive online catalogs that are
edited, sorted, and organized by
humans

29. Major Web Directories
• http://directory.google.com
• http://dir.yahoo.com
• http://dmoz.org

30. Practical Tips for Managing Information
1. Using bookmarks
2. Printing information
3. Saving text for subsequent reading or
printing
4. Saving an image or diagram

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