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General Tips
Despite differences in each search engine’s tools,
there are tools that many search engines have in common.
The following tools can help narrow your search:
Quotation marks: Sometimes you can
add characters to your words or phrases to more closely
define your intentions for the search engine.
Enclosing a multiword phrase in quotation marks tells
the search engine to list only sites that contain those
words in that exact order. For example, if a query asks
for water cycles rather than “water cycles”,
then the responses will be for the words water
and cycles separately, in addition to the coupled
words.
Plus and minus signs: If you type
a plus sign (+) directly in front of a word, you are
indicating that the word or phrase must appear in the
search results (for example, Hotels+San+Francisco).
Similarly, a minus sign (-) indicates that the word
or phrase should not be included in the search results
(Cars-Ford).
Boolean operators: Boolean operators
include AND, OR, AND NOT, and parentheses. To
work, these operators must appear in ALL CAPS
and with a space on each side.
AND - Similar to the plus sign,
AND indicates that the documents found must contain
all the words joined by the AND operator. For
example, to find documents that contain the words biology,
and cells, enter biology AND
cells .
OR - Documents found must contain
at least one of the words joined by OR. For example,
to find documents that contain the word precipitation
or the word rain, enter precipitation
OR rain.
AND NOT - Similar to the minus sign,
using AND NOT indicates that the documents found cannot
contain the word that follows the term AND NOT.
For example, to find documents that contain the word
precipitation but not the word snow,
enter precipitation AND NOT snow.
Parenthesis - Parentheses are used
to group portions of Boolean queries together for more
complicated queries. For example, to find documents
that contain the word fruit and either the word
banana or the word apple, enter fruit AND (banana
OR apple )
Title search - This feature enables
you to restrict searches to the title portion of web
documents. For example, typing title:Mars
or t:Mars will retrieve all documents that have the
word Mars in their title.
Planning and Conducting a Search
This section recommends ways of conducting a search
in an orderly and informed way. For those just
beginning to learn the search process, use the following
guidelines:
- Develop a general understanding of the available
search tools, process and language. Become familar
with a couple of different search engines.
- In the beginning avoid searching for obscure information
not likely to be found without using complex search
methods.
- In keyword searches, start by working with no more
than two or three search tools until you gain mastery
over them. Learn how to best compose a query
and focus the search.
Searching By Keyword
- For search queries that do not require operators,
such as a single term or proper names, use a keyword
search engine such as
AltaVista (http://www.altavista.com) or
HotBot
(http://www.hotbot.com) or Google
(http://www.google.com).
- For queries that employ a phrase, use quotes to
enclose the phrase. This will reduce the number
of hits considerably and improve the relevancy.
Directory (Subject Search)
Some search engines provide a subject list when their
home page is displayed. Try Yahoo!
(http://www.yahoo.com). For searching for a subject
list provided, choose and click a category of your interest
to follow. Choose increasingly more specific titles
until there are no more options of interest offered.
Scroll through the references or hits, and click on
a hit that interest you to access the reference.
Conducting Moderately Complex Searches
- For a convenient way to conduct a moderately complex
search, employ search engines that have a common set
of operators. Quote Marks (“ “);
(+) sign; (-) sign; and the Boolean operators such
as AND, OR, AND NOT and parentheses.
- Hotbot
(http://www.hotbot.com), AltaVista
(http://www.altavista.com/), Go.com;
(http://infoseek.go.com/) and Excite
(http://www.excite.com) use these common set of operators.
- Use lower case except with proper names. Proper
names are capitalized and separated by commas.
- For quick and efficient searches use a multi-engine
search tool such as Metacrawler
(http://www.metacrawler.com)
- Google (http://google.com)
An excellent all around universal search engine.
Using a new Computational Knowledge Engine
WolframAlpha
- Computational Knowledge Engine New
Today's
Wolfram Alpha is the first step in an ambitious, long-term
project to make all systematic knowledge immediately
computable by anyone. Enter your question or calculation,and
Wolfram Alpha uses its built-in algorithms and a growing
collection of data to compute the answer.
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To speed up your searches, bookmark
your favorite search engine tools for future use.
Also, bookmark useful sites during your search,
so that you can find your way back to them.
- To speed up your search of multiple search engines
compose a query using Common Operators, and type it
into the search box. Copy the query onto the
Clipboard for later use. Click on search and
evaluate the hits. Scroll to the next search
engine, and paste the query into the location box.
Click search and evaluate the hits. Repeat this
process for each search engine of interest.
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