Dictionaries and Tolerant Retrieval
Dictionaries and Tolerant Retrieval
Dictionaries and Tolerant Retrieval
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Introduction to Information <strong>Retrieval</strong>Sec. 3.3.4Edit distance to all dictionary i terms?• Given a (mis‐spelled) spelled) query – do we compute its editdistance to every dictionary term?• Expensive <strong>and</strong> slow• Alternative?• How do we cut the set of c<strong>and</strong>idate dictionaryterms?• One possibility is to use n‐gram overlap for this• This can also be used by itself for spelling correction.30
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