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Web Search Strategies Prezi

Describes what search engines are, how they work, and strategies for finding what you're looking for. Thanks to Juliana Brittis for creating this reusable Prezi!

Jocelyn Sams

on 7 July 2014

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Transcript of Web Search Strategies Prezi

Web Search Strategies
What is a search engine?
A special Web site that takes words and phrases typed by users,
and returns a list of Web pages matching the description.

What are some popular search engines?
What does a search engine do?
all search engines perform three basic tasks
They search the Internet -- or select
pieces of the Internet -- based on
important words.

They keep an index of the words they
find, and where they find them.

They allow users to look for words or
combinations of words found in that index.
what's a web index?
the storage and organization of the content of websites to make searching online easy and fast
Types of Search Engines
Robots (also known as crawlers, ants, and spiders)
Human Submission
Robots + Humans
How Search Engines Work
How Search Engines Work
Search engines use programs (often referred to as "spiders", "robots" or “Webcrawlers”) to collect information.
What's a Web Spider?
Web Spider: Also known as a "crawler," "robot" (bot) and intelligent agent … spiders

A special program used by a search engine to collect information.
are widely used by Web search engines to index all the pages on
a site by following the links from page to page.
are also used to locate web pages that sell a particular product or
to find blogs that have opinions about a product.
Information Overload
With the millions and millions of websites made how do you even start to search and find EXACTLY what you need?
What is the research topic I am are searching for?
Break the question down into keywords and terms
Choose the best type of search platform
Use the best web search strategies
what are good web search strategies?
Web Search Strategies
To narrow your search results and move the most
relevant pages to the top of the results list, you can...
Follow these

Choose Search Terms Carefully
Suppose you want information on artists. If you type artists as your search criteria, you will get links for music artists, escape artists, graphic artists. To get more focused results the keywords might be Renaissance artist


Suppose you want to find information on what the FCC has said about the
wireless communications industry, the keywords might be FCC wireless communication

Use Special Search Operators
The AND operator (in all capital letters) tells the search engine to retrieve web pages containing all the keywords. The AND operator
narrows your search and limits results.

FCC AND wireless AND communication

The search engine will not return pages with just the word FCC.
Neither will it return pages with the word FCC and the word wireless.
The search engine will only return pages where the words FCC, wireless, and communication all appear somewhere on the page.
Use Special Search Operators
The OR operator (in all capital letters) tells the search engine to retrieve web pages with a single keyword, several keywords, and all keywords. The OR operator expands your search. Use OR when you have common synonyms for a keyword.

car OR automobile OR vehicle
Surround OR operators with parentheses for best results. To narrow results as much as possible, combine the OR operator with the AND operator. For example, the following search statement locates information on purchasing a used car:

(car OR automobile OR vehicle) AND (buy OR purchase) AND used
Use Special Search Operators
Use plus and minus signs to include or exclude words.
There is no space between the plus or minus sign and the keyword.

+apple -mac -computer -store -ipod -ipad
The above example instructs the search engine to return web pages about apples but not web pages about Apple computers.
Use +/- operators when you have a keyword that has multiple meanings.
Phrase Searching
Use quotation marks to find complete phrases. The quotation marks tell the search engine to only retrieve documents in which those words
appear side-by-side

global warming will yield different search results than "global warming" (with quotes around both words)..
Improve your results by combining phrase searching with search operators.

+"heart disease" +cause
"heart disease" AND cause
The above examples tell the search engine to retrieve pages where the words heart disease appear side-by-side and the word cause appears somewhere else on the page.
Capital Letters
Most search engines interpret lower case letters as either upper or lower case.
If you want both upper and lower case occurrences returned,
type your keywords in all lower case letters.
¸ If you want to limit your results to initial capital letters (ex. “George
Washington”) or all upper case letters, type your keywords that way.
Plural Forms
Most search engines interpret singular keywords as singular or plural.

If your want plural forms only, make your keywords plural.
Wild Cards
when you use an * before a word in a search, the search engine will return variations of that word
if you search *heat, you'll get back "heating" "heated" "heater"
Title Search
You can search the web in a way that only returns websites with the title that you want
+title:"George Washington" +president +Martha

this gives us back search results where the title has "George Washington" in it and the words "president" and "Martha" mentioned somewhere on the webpage
**there is NO space between the : and "
Domain Search
A domain search allows you to search within specific domains like in the United Kingdom (.uk) or at universities (.edu)
+domain:uk +title:"Queen Elizabeth"
+domain:edu +title:"lung cancer" AND "smoke"
Advanced Search
By selecting variables from a drop down box or clicking a check box, you can limit results to sites that include/exclude words or phrases, sites updated within a specific time frame, sites that contain a certain file type (html, pdf, doc, etc.), sites that use a specific domain suffix (.com, .edu, .gov, etc.), and more.
When you make choices in the Advanced Search dialog box, the search engine will specify the search criteria for you.

In other words, you can use the AND, OR, +/- operators, parenthesis and quotes as described above, or you can let the search engine construct the search criteria for you.

Google Scholar
It’s the ‘free web’s’ access to content that is
normally found on subscription databases
Full transcript