Internet Research
Advanced Search Strategies
Framed | Unframed

 

Strategies for Efficient Searches

Take a moment to analyze your subject and topic by following these search tips.

Detective searching

1. Analyze your subject and topic to decide where to begin.

      Download this"pre-search analysis" form to record the information below.

 

  1. What unique words, distinctive names, abbreviations, or acronyms are associated with your topic? These may be the place to begin because their specificity will help zero in on relevant pages.

  2. Can you think of societies , organizations, or groups that might have information on your subject via their pages? Search these as a “phrase in quotes”, looking for a home page that might contain links to other pages, journals, discussion groups, or databases on your subject. You may require the “phrase in quotes” to be in the documents’ titles by preceding it by title:[no space]

  3. What other words are likely to be in ANY Web documents on your topic?
    You may want to require these by joining them with AND or preceding each by +[nospace]

  4. Do any of the the words in 1, 2, or 3 belong in phrases or strings -- together in a certain order, like a cliché?
    Search these as a “phrase in quotes”. (E.g., “affirmative action” or “communicable diseases”)

  5. For any of the terms in #4, can you think of synonyms, variant spellings, or equivalent terms you would also accept in relevant documents?
    You may want to allow these terms by joining them by OR and including each set of equivalent terms in ( ).
    In Infoseek, allow any of them by omitting + and - before them. [no space] [no space]

  6. Can you think of any extraneous or irrelevant documents these words might pick up?
    You may want to exclude terms or phrases with -[nospace] before each term, or AND NOT

  7. What broader terms could your topic be covered by?
    When browsing subject categories or searching sites of webliographies or databases on your topic, try broader categories.

 

2.    Pick the right starting place

Do you want an overview or focused information on your topic?
  Search Engines Subject
Directories
Specialized Databases
Find an Expert Luck
Trial & Error
Overview

Look for a Directory focused on the broad subject.

 

Use the
Librarians Index
AcdemicInfo
Infomine

Direct Search the
**Invisible Web
 

  If at first you don't succeed, try, try again.
Learn as you search.
More Focused Do a Boolean search using a search engine.
See chart below.
 
Look for a specialized Subject Directory focused on your topic.

Use the
Librarians Index
AcdemicInfo
Infomine

Direct Search the
**Invisible Web

E-mail the author of a good page you find.
Ask a discussion group or expert.
 
*Not Recommended 
**What is the "Invisible Web"?
 

 

 

Does your topic have distinctive words or a phrase?
  Search Engines Subject
Directories
Specialized Databases
 
Luck
Trial & Error
Yes Enclose phrases in " ".
Test run your word or phrase in Google.
Search the broader concept, what your term is "about."

Use the
Librarians Index
AcdemicInfo
Infomine

Direct Search the
Invisible Web

 

If at first you don't succeed, try, try again.
Learn as you search.
No Use more than one term or phrase in quotes " " to get fewer results.
 
Try to find distinctive terms in Subject Directories

Use the
Librarians Index
AcdemicInfo
Infomine

Direct Search the
Invisible Web

 

 

 

Does your topic have a lot of synonyms, equivalent terms, homonyms or variants?

Synonyms

For example, you want your search on economy to include words like: eononomy, economics, econometrics, economists
 

Do a Boolean search using OR, or
Truncation (e.g. econ* in (Alta Vista, Yahoo!, lii.org, Infomine)

Homonyms

For example, if you type in police, you get a lot of pages about the rock group

Do a Boolean search using NOT or - (minus). See chart for Boolean search term types.

Variants

For example, you type in "cloning" and get a lot of joke pages.
 

Do a Boolean search using NOT or - (minus). See chart above.
Stuck?
Look for a Gateway Page (Subject Guide).
Try an encyclopedia in a Virtual Library.
Ask at a library reference desk.
 
Never hurts to seek help
 

3.  Learn as you go & VARY your approach with what you learn. star tipping his hat

 

Adapted from: UC Berkeley - Teaching Library Internet. "Finding Information on the Internet: A Tutorial Recommended Search Strategy: Analyze your topic & Search with peripheral vision
Workshops" http://www.lib.berkeley.edu/TeachingLib/Guides/Internet/Strategies.html

 

 

Summary Chart for Types of Boolean Terms Used  (What are Boolean terms ?)

Search Engine

Full Boolean

Implied Boolean Template Terminology
Adv. Search Method
  AND, NOT, OR, " " AND* OR, -, +, " " (fill in the blank)  
Google about   little star star

PageRank

AltaVista star   star Prisma
Alltheweb   little star star Word Filters (refine)
Northernlight little star   star Word Filters
subject, source, doc type, date
Rival Eye
 
Teoma
(by Ask Jeeves)
 
little star   Subject Specific Popularity
Authoritative search returns
 
AOL Search
options
Uses Google
  little star   "Narrow Your Search" Refine by subject, keyword, location;
"Other Resources"
 
HotBot little star   little star Search filters
Yahoo!   little star little star --
Ask Jeeves

 
Uses
Natural
Language
 

Subject Specific Popularity
Authoritative search returns

Kartoo
Visual!

    little star

Graphic interface for Boolean search
Visual flow charts
Uses "clustering"
 

 
* Implied Boolean uses AND as default (i.e.if you enter stem cell, by default it recognizes stem AND cell)

 

 

Continue!   Continue

Resources

  1. The Wall Street Journal, "The Best Way to Search the Web", 18 11 02, p. R6.
  2. The Spider's Apprentice, "A Helpful Guide to Search Engines", http://www.monash.com/spidap4.html#relevancy
  3. University of California, "Search Strategies." http://www.lib.berkeley.edu/TeachingLib/Guides/Internet/Strategies.html
  4. University of California. "Subject Directories: The Best and More." http://www.lib.berkeley.edu/TeachingLib/Guides/Internet/SubjDirectories.html
  5. College of San Mateo, LIBR 105: Online Research Skills.
  6. Skyline College, http://www.smccd.net/accounts/skylib/inetsrch.html#booltips

Centers for Teaching and Learning
Sevastopoulos, Bruni and Karas
Updated  6/20/2006