how do we find the potentially useful documents … 1. Limit the retrieval to a data base … the entire data base to find useful, unretrieved … [p. 82] Before the inquirer searches on the system … proportion of these documents which the inquirer is … [but] searching for documents which we already know … 3. Appoint a group of experienced individuals to … [p. 83] 4. Take a random sample of the … using reliable statistical techniques, estimate the number of … 5. Select samples of unretrieved documents through the … base which are anticipated to be rich in …
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