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22nd June 2006
Keyword Stemming in regards to PPC, is taking the stem of a word, and building additional words by adding a prefix or suffix and using pluralization.
Sometimes the words from the output of these keyword stemming tools don’t have any meaning. That’s because the keyword stemming tools are meant to strip a word down to the root and show different variations of the word form.
So, the solution is for the keyword stemming tools to cross-reference the output against a huge dictionary of words (like Merriam Webster Dictionary) to insure that the output is linguistically correct words.
An example of Keyword stemming for the word “search” is:
search
searcher
searches
searched
searching
searchable
Keyword Stemming tools are very useful for expanding keyword lists. Some of these keyword stemming tools will give you the equivilant of long tail keywords. My suggestion is to use keyword matching options to increase your conversion rates. Bear in mind, that most 2nd tier search engines won’t have the keyword inventory. So, keyword stemming is a better strategy on the large engines like Google & Yahoo rather than smaller engines like Ask.
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June 22nd, 2006 at
Google now uses stemming technology. Thus, when appropriate, it will search not only for your search terms, but also for words that are similar to some or all of those terms. If you search for pet lemur dietary needs, Google will also search for pet lemur diet needs, and other related variations of your terms. Any variants of your terms that were searched for will be highlighted in the snippet of text accompanying each result.
note that is is only applicable with broadmatch turned on.