Advance searching techniques

Searching Techniques - How to make effective search on google

1. Humayun Khan(BS in Library and Information
Sciences.)
Vice principal
SEA School & College Barikot Swat
Contact #. 03321937909
Email : [email protected]
1

2. What is search engine?
A computer program that retrieves
documents or files or data from a
database or from a computer network
(especially from the internet)
world web dictionary
2
SO. . .
search engine is a website that searches the
Internet for pages and documents relevant to
the search terms given. Search engines use
robots to'crawl' the web for new content to add
to the possibilities for search results.

3. Crawler-based search engines The life span of a typical web query
3
1. The web server sends the query to the index servers.
The content inside the index servers is similar to the
index in the back of a book - it tells which pages
contain the words that match the query.
2. The query travels to the doc servers, which
actually retrieve the stored documents. Snippets
are generated to describe each search result.
3. The search results are returned to the
user in a fraction of a second.
http://www.google.com/corporate/tech.html

4. Top Search Engines (2016)
4

5. Top Search Engines for 2016 (By Visit)
5
Top Search Engines
Source: http://www.hitwise.com

6. Google: A Search Engine
6

7. Facts about Google
Google started in January, 1996 as a research project at
Stanford University, by Ph.D. candidates Larry Page (24
Years old) and Sergey Brin (23 years old).
The name “Google” was an accident. A spelling mistake
made by the original founders who thought they were going
for “Googol”.
Google is the largest American company (by market
capitalization)
The infamous “I m feeling lucky” button is nearly never
used. However, it costs Google $110 Million a Year
7

8. Cont…
8
I am Feeling Lucky Button

9. Cont…
The Google search engine receives about a
billion search requests per day.
Google has the largest network of translators in
the world.
Google consists of over 450,000 servers
Number of languages in which you can have the
Google home page set up, including Urdu and
Latin : 88
9

10. 10
Google Home Page

11. 11


Search terms entered here
The search took 0.35
seconds…
203,000 results were found…
We need to do a more
effective search!!

12. 12
Names Used for Digital Library
Search terms entered here
Limited your search

13. How to read search results
1.The title: The first line of any search result is the title of the
webpage.
2.The snippet: A description of or an excerpt from the webpage.
3.The URL: The webpage's address.
4.Cached link: A link to an earlier version of this page. Click here
if the page you wanted isn't available.
13

14. Google: Advance Search Features
Phrase Search [ “ ” ]: always use quotations to search a
phrase
Example: “Digital Library”

Hyphen [ -]: always hyphenate a word that is sometimes
hyphenated
Example: front-line searches front-line, frontline, and
front line
Synonyms Search [~ ]: let google “think” of synonyms
Example: ~youth finds youth, juvenile, adolescent
14

15. More search features…
Intitle: Requires terms to appear in the title of the document
Example: intitle: “global warming”
Allintitle: Requires all terms to appear in the title of the document
Example: Allintitle: traditional knowledge intellectual property
pacific
Inurl: requires terms to be in the url
Example: Inurl: ICP “Central Library” will find all references to Central Library
on websites with ICP in the url.
Allinurl: Requires All terms to appear in the URL of the document.
Domain Search [Site:] used to search within a particular Site
Example: Site:icp.edu.pk “Central Library”
15

16. And more search features
Filetype: only searches particular types of
documents
Example: Filetype:pdf “Digital Library” will locate
PDF files on Digital Library
use google as a dictionary
Example: Define:University
16

17. Query Modifiers – intitle:
17
Find sites with one search term in the title.

18. Query Modifiers – intitle:
18
…and ingredient
anywhere in the
document.
This search returns
sites with the word
shampoo in the
title…
Find sites with one search term in the title.

19. Query Modifiers – allintitle:
19
Find sites with ALL search terms in the title.

20. Query Modifiers – allintitle:
20
Notice fewer “hits”
when shampoo
AND ingredient
must be found in
the title of the
page.
Find sites with all search terms
in the title.

21. Query Modifiers – inurl:
21
Find sites with one search term in the URL.

22. Query Modifiers – inurl:
22
…and ingredient
anywhere in the
document.
This search returns
sites with the word
shampoo in the
URL…
Find sites with one search term in the URL.

23. Query Modifiers – allinurl:
23
Find sites with ALL search terms in the URL.

24. Query Modifiers – allinurl:
24
Find sites with all search terms
in the URL.
Notice fewer “hits”
when shampoo
AND ingredient
must be found in
the title of the
page.

25. Query Modifiers – site:
25
Limit your search to a specific web site.

26. Query Modifiers – site:
26
Example 1
Enter search terms,
then qualifier.
Finds elephant
race on the Cal
State Fullerton
site.
Limit your search to a specific web site.

27. Query Modifiers – site:
27
Example 2
Enter search
terms, then
qualifier.
Finds dinosaur on
the Smithsonian
Institute site.
Limit your search to a specific web site.

28. Query Modifiers – filetype:
28
Specify a type of document to search

29. Query Modifiers – filetype:
29
Specify a type of document to search.
pdf – Adobe
readable files

30. Query Modifiers – filetype:
30
Specify a type of document to search.
pdf – Adobe
readable files
doc – Microsoft
Word documents

31. Query Modifiers – filetype:
31
Specify a type of document to search.
pdf – Adobe
readable files
doc – Microsoft
Word documents
mdb – Microsoft
Access databases

32. Query Modifiers – filetype:
32
D’oh!
If you get no results from Google
Web, try Google Images.
Specify a type of document to search.
pdf – Adobe
readable files
doc – Microsoft
Word documents
mdb – Microsoft
Access databases
jpg, gif, tif – graphics
and photos

33. Query Modifiers – filetype:
33
Specify a type of document to search.
pdf – Adobe
readable files
doc – Microsoft
Word documents
mdb – Microsoft
Access databases
jpg, gif, tif – graphics
and photos
ppt – Microsoft
PowerPoint presentations

34. Example: dictionary search
34
First enter qualifier then the Search terms

35. Boolean searching
Uses commands (operators) such as AND, OR, NOT
Different search tools may use different symbols
AND +
NOT –
Different search tools may use OR or AND as a default
setting
Sometimes Boolean operators must be entered in capital
letters (e.g. Synergy)

36. education
literacy
Query: I would like information
about education or literacy

37. education literacy
Query: I'm interested in the
relationship between education
and literacy

38. NOT
Education
Secondary
Education
Query: I want to see information about education, but I want
to avoid seeing anything about secondary Education

39. Truncation or wildcard
searches
Truncation: place a symbol at the end of the word so
you search for variant endings of that word
e.g. literac$ would look for literature, literacy, literal
Wildcards: place a symbol within a word to find
variations on it
e.g. analy*e would find analyse or analyze
Different symbols - including $ * # ! : - are used by
different search tools

40. Phrase searching
Using quotation marks allows you to search for an
exact phrase, e.g. “information literacy”
Using NEAR allows you to specify how close to each
other the terms you are searching for should be

41. Lesser Used Databases of Google
Images
Video
News
Maps
Books
Doc
41
Groups
Labs
Products
Scholar
Directory

42. 42

43. 43

44. About Google Images
Google analyzes
Text on the web page adjacent to the image
Captions
Get more info online at
http://images.google.com/help/faq_images.html
44

45. 45

46. http://video.google.com
46

47. 47
Google analyzes
Text on the web page adjacent to the video
Captions
Get more info online at
http://video.google.com/video_about.html

48. Books
48

49. http://books.google.com/
49

50. About Google Books
Results can include either excerpts or full text of
books
Displays links of bookstores and libraries where each
book can be found
Results come from two sources
Google books partner program -
Google books library project
Get more info online at
http://images.google.com/help/faq_images.html
50

51. Scholar
51

52. http://scholar.google.com
52

53. About Google Scholar
Results taken from scholarly literature
Google ranks articles by weighing:
Full text
Author
Publication in which article appears
Number of article’s citations in other scholarly literature
More info: http://images.google.com/help/faq_images.html
53

54. 
Any query regarding search engines.
???
54