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   wildcard searching in dictionary

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Topic: wildcard searching in dictionary (Read 442 times)

cuckoo
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wildcard searching in dictionary
« on: Sep 4^th, 2007, 2:41am »

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I am doing research on string processing and come up the following problem:

D is fixed dictionary of words, you can preprocessing it to build some data structure as you like.
Now in the query phase, you are given a wildcard pattern, and you are asked to return all words in D that match with the pattern.

For example, if the wildcard pattern is "h**o", then you must return all words in D begin with 'h' and end with 'o'. "hello" is such a candidate.

Generally, you should build "index" on dictionary, not on the query pattern, since the latter changing from time to time.

Looking forward an elegant solution! Grin

« Last Edit: Sep 4^th, 2007, 2:45am by cuckoo »

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sk
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Posts: 45

Re: wildcard searching in dictionary
« Reply #1 on: Sep 4^th, 2007, 8:16am »