Power Searching 501 (?): a crash course The stuff you need to know about searching, but may have...
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Transcript of Power Searching 501 (?): a crash course The stuff you need to know about searching, but may have...
PowerSearching 501 (?):
a crash courseThe stuff you need to
know about searching, but may have forgotten along the way!
(And, the stuff I want you to know before you go off to college!)
But we’ve heard this all
before, Mrs. V!
Sorry.This important review won’t hurt too much! I promise!!!! And it will help you in college and beyond!
Let us begin!Yeah! Okay. We love databases and searching!
And I love your enthusiasm for
searching and databases!
You make me proud!
Our review begins!
Review question #1:
What is the difference between free Web search tools and subscription databases?
Hmmmm
Free Web Search Tools
Subscription or Proprietary Search Tools
Review question #2:
How can you choose the right search tools for you
information task?
Choose the right database for your information need!
Choose the right search engine for your information need!
Choosing the Best Search Tool (Debbie Abilock) http://www.noodletools.com/debbie/literacies/information/5locate/adviceengine.html
Getting Started: Selecting a Tool for your Search
http://library.albany.edu/internet/started.html
Even Google has choices:
• Google Print - Search the full text of books
• Google Scholar - Search scholarly papers
• Google Directory for a subject approach
• Google Images
Review question # 3:
And when you are in the search engine or database, did you know you have a major searching
interface choice?
Simple vs. Advanced
It’s about power!
Why go beyond
the simple search
screen?
Simple Screen
Click here
for more
precision
and power!
Advanced screen
Simple screen in a database
Advanced screen in a database
And within your database, you will often have to make
another choice!
Another decision:
Subject / Topic
Keyword
Full text
This is an important choice!
Review question #4
What is the difference?
• Subject / topic• Keyword• Full text
When might you use each?
Use the language and structure of the database to gather relevant material!
Subject headings or descriptors in databases
In some databases this choice is critical!
More about
subject
headings and database structure!
Databases have information hierarchies
Subject structure behind the database
Descriptors may look different
Some search engines also offer subject / topic cues or clusters
You can open these categories!
Search engine clusters help you find relevant documents and suggest search terms
STOP the insanity!
Stop using stop words in your searches!
in, of, the, a, to you, why, who, what, on, than, then, their, an, his, her, be
Using stop or noise
words instead of a
Boolean operator
List of English “stop words”
Review question # 5
What are Boolean operators?
Rockwell Schrock’s Boolean Machine
http://kathyschrock.net/rbs3k/boolean
Google doesn’t care,
but your
database does!
Google ignores stop words and assumes an AND between words.
How important AND is!!!
Using the operator
“AND” gets more
results!
When to use “+” in Google
When do you really need OR?
OR is generally used for synonyms or related words.
OR in Google
NOT as a refinement technique for problem words
eagles NOT Philadelphia“Martin Luther” NOT King
Using “not” in Google
Boolean operators in databases
“Phrase searching”
• One of your best searching tools!• Use only for legitimate phrases, names, titles
• Best example -- “vitamin A”• “John Quincy Adams”• Titles “An Officer and a Gentleman”• “to be or not to be”
• Phrase searching is sometimes overused: not every group of words is a phrase
• Sometimes “ANDing” is a better strategy
Time for parentheses?
Wildcards and stemming
• Google stems, it returns varies forms of words
• Many databases do not stem.• Use an asterisk for various word forms
adolesc* child* teen*
Using wildcards in databases
A question is not a queryHow many buffalo remain in the United States?
Can you create an effective
“two word” search?
From David Barr, formerly of IMSA
How to structure a good query• Brainstorm several key words and
phrases—the ones you think would appear and wouldn’t appear in your dream document
• Anticipate synonyms and related words
• Mine your results!: be on the look out for better words and phrases as you search
More on the query
• Focus on nouns (verbs are often vague, stop words, like articles—a, an, the—are ignored by most engines)
• Include most important words and phrases first.
And just a few more little tricks!
http://elibrary.bigchalk.com/libweb/curriculum/do/search
Search / filter
by media type(Als
o ph
rase
sear
chin
g
Searching by media type and using phrases
Don’t forget the tabs
across the top of the
page!
Sorting results
Find command helpful for lots of text, or search results
More like this, related sites . . .
Searching within a large site
And finally, as you search, consider . . .
What types of sources does your instructor want you to cite:
Primary sources?
Scholarly sources?
Popular sources?
Trade journals?
Consider what type of source is contained on that printout?
• Popular?
• Trade?
• Scholarly?
• Primary source?
http://mciu.org/~spjvweb/scholarly.html
Scholarly words
• Refereed
• Peer reviewed
• Scholarly
Filter for scholarly
and for full text
http://en.wikipedia.org/wiki/London_bombing
When to use Wikipedia and other wiki sources
http://en.wikipedia.org/wiki/Deep_fried_Mars_Bar
http://en.wikipedia.org/wiki/Python_programming_language
A very powerful dictionary source!
Help screens can help
Online, offlineSchool, academic, public
Librarians can
really help!
Habits of mind apply to research
• Tolerating, embracing ambiguity• Using resources wisely• Seeking accuracy• Seeking clarity• Evaluating the effectiveness of your own
actions• Planning• Being responsive to feedback• Being open-minded• Engaging intensely
Any questions?