Mind the gap.

نویسنده

  • B Booth
چکیده

The Online Dictionary Matching with Gaps Problem (DMG), is the following. Preprocess a dictionary D of d gapped patterns P1, . . . , Pd such that given a query online text T presented one character at a time, each time a character arrives we must report the subset of patterns that have a match ending at this character. A gapped pattern Pi is of the form Pi,1{αi, βi}Pi,2, where Pi,1, Pi,2 ∈ Σ∗ and {αi, βi} matches any substring with length between αi and βi. Finding efficient solutions for DMG has proven to be a difficult algorithmic challenge. Little progress has been made on this problem and to date, no truly efficient solutions are known. In this paper, we give a new DMG algorithm and provide compelling evidence that no substantially faster algorithm exists, based on the Integer3SUM conjecture.

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عنوان ژورنال:
  • Nursing times

دوره 91 46  شماره 

صفحات  -

تاریخ انتشار 1995