Your SlideShare is downloading. ×
0
Add Your Company Slogan
Internet
Searching
Group Members
Nashfa1
Zabir2
Visala3
Azhar4
Zaha5
Contents
Introduction1
Directories2
Search Engines3
MetaSearch Engines4
Search Strategies5
Introduction
With the arrival of the WWW came
the widespread availability of online
information
Answers to your questions ...
DIRECTORIES
• Method of finding and organizing
web information
• Offers a hierarchical representation
of hyperlinks to web...
Directories : classification
General Specialized
•Also called web
directory or subject
directory
•Top level provides a
wid...
Search Engines : introduction
• A computer program
• Submit a query describing the
information you want to locate
• Search...
Search engines : classification
General Specialized
•Also called vertical
search engine or a topic
search engine
•Retrieve...
Metasearch Engines
• Does not have their own database of
information
• Calls many search engines to do the
actual work
Adv...
Directories and search engines
: Popular
MetaSearch
Engines
Directories Search
Engines
Boolean Queries : AND
operator
A
A
A
A
A
A
A
A
A
A
A
A
B
B
B
B
B
B
B
B
B
B
B
B
Boolean Queries : OR operator
A
A
A
A
A
A
A
A
A
A
A
A
B
B
B
B
B
B
B
B
B
B
B
B
Search Strategies
• Determine which search engine
• Possesses a user-friendly interface
• Has a easy-to-understand, compre...
Exercise
THANK YOU
Internet searchingnewver
Upcoming SlideShare
Loading in...5
×

Internet searchingnewver

335

Published on

Published in: Education
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
335
On Slideshare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
4
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide
  • Explain that the information on the web won’t be arranged in any way (very different from library arrangement)
  • Transcript of "Internet searchingnewver"

    1. 1. Add Your Company Slogan Internet Searching
    2. 2. Group Members Nashfa1 Zabir2 Visala3 Azhar4 Zaha5
    3. 3. Contents Introduction1 Directories2 Search Engines3 MetaSearch Engines4 Search Strategies5
    4. 4. Introduction With the arrival of the WWW came the widespread availability of online information Answers to your questions are somewhere on the web, but how do you locate them?
    5. 5. DIRECTORIES • Method of finding and organizing web information • Offers a hierarchical representation of hyperlinks to web pages and presentations broken down to topics and subtopics • Review and classified by human editors
    6. 6. Directories : classification General Specialized •Also called web directory or subject directory •Top level provides a wide range of broad topics. E.g. Music / Entertainment. •Also called subject guides or gateway pages •Deals with a variety of topics. E.g. law, medicine. Benefits Easy to use Need not know what you are looking for
    7. 7. Search Engines : introduction • A computer program • Submit a query describing the information you want to locate • Searches its databases to try and match your query • Collates and returns a list of URL’s which matches your query • Permits you to revise and resubmit a query
    8. 8. Search engines : classification General Specialized •Also called vertical search engine or a topic search engine •Retrieves information from a database that contains information on a wide variety of topics •Provides in-depth information on specific topics that may be valuable •Exists for a multitude of topics •MP3s •Shopping •News etc Not as easy to use as directories. WHY??
    9. 9. Metasearch Engines • Does not have their own database of information • Calls many search engines to do the actual work Advantage: You can access a number of different search engines with a single query Disadvantage: You will get a lot of results which will not be of interest to you. Therefore you will spend a lot of time evaluating the results and deciding which link to follow
    10. 10. Directories and search engines : Popular MetaSearch Engines Directories Search Engines
    11. 11. Boolean Queries : AND operator A A A A A A A A A A A A B B B B B B B B B B B B
    12. 12. Boolean Queries : OR operator A A A A A A A A A A A A B B B B B B B B B B B B
    13. 13. Search Strategies • Determine which search engine • Possesses a user-friendly interface • Has a easy-to-understand, comprehensive documentation • Is convenient to access; that is you do not have to wait several minutes before being able to submit a query • Contains a large database • Does a good job in assigning relevancy scores
    14. 14. Exercise
    15. 15. THANK YOU
    1. A particular slide catching your eye?

      Clipping is a handy way to collect important slides you want to go back to later.

    ×