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Unformatted text preview: chopping off the suffixes. For example, a program that uses stemming would treat quick, quickly, and quicker as equivalents. Does Google use stemming to determine their results? Give an example that supports your answer. 4)Stop words A common practice in language models is to ignore a list of stop words. Stop words are commonly used words that add little meaning to a phrase, such as the, and, of, etc. However, search for [who] and [the who] and you'll see that the results are very different. Can you find two queries that differ only by stop words and have the same top result? 5)Adwords Google uses terms in search queries to place context sensitive ads on the result screen. a)Give an example of a query that displays an ad for Rolex with its results but does not contain the word Rolex. b)Can you find a query that returns no ads? Give an example....
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- Fall '08