Effective
SearchesIt
is estimated that The Internet has over 600 billion pages. It's no wonder that
we are unable to find things as quickly as we want. If, however, we explore utilizing
computer database searching we will find that our results are much more accurate.
Quite
often, when we are looking for information we simply type in the phrase. But,
the Internet was designed around logic - Boolean Logic. It was created by George
Boole to create relationships between concepts and is used is a variety of applications
including mathematics, electronics and yes, the Internet. On
the Internet, we use it to combine key words to narrow or broaden the results
of our search. It allows for more accurate searches by incorporating the use of
AND, OR, and NOT.
AND limits your search by requiring all words be present (not necessarily together)
OR expands the search, not requiring all words to be present
NOT limits your search by eliminating words Using AND or AND NOT will
usually make your search result smaller; using OR will usually make it larger.
Notice that these are type in Capital letters. Another
useful search technique involves the usage of quotation marks to narrow in on
our target by looking for the exact words together in the exact order. This searches
for exact multiple-word phrases. Without quotation marks, the search engine may
assume that the phrase is a list of separate terms. "Jail House Rock",
for instance, will return a list of pages containing that exact phrase. In contrast,
jail house rock (without quotes) returns pages containing the words: jail, house,
and rock, not necessarily in that order. Let's
study an example of each. I'm looking for WebPages on Mickey Mouse. Here are the
results of the following examples typed in my Search.
"Mickey
Mouse" 8,900 hits Mickey and Mouse 349,000 hits Mickey AND Mouse
9,270 hits Mickeymouse 65 hits If
I was looking for Mickey unrelated to Mouse, I could type in Mickey NOT Mouse.
My search netted 45,100 hits and included Baseball memorabilia, Mickey's Art and
Crafts and a recruitment superstar. NOT is the least used of all the Boolean Operators.
Be care of your
search engine provider on the Internet also. Not all search engines are alike
and not all search engines support Boolean Logic. I like www.google.com, however,
there are many, many excellent search engines on the Web. There's even a web site
to rate and explain them for you
www.searchenginewatch.com. Finally,
be aware that many common words and characters, known as stop words are ignored.
Many sites automatically disregard such terms as "where" and "how,"
as well as certain single digits and single letters, because these terms slow
down searching significantly and rarely help narrow a search. |