Efficient comparison based string matching:
Abstract: "We study the exact number of symbol comparisons that are required to solve the string matching problem and present a family of efficient algorithms. Unlike previous string matching algorithms, the algorithms in this family do not 'forget' results of comparisons, what makes...
Gespeichert in:
Hauptverfasser: | , |
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Format: | Buch |
Sprache: | English |
Veröffentlicht: |
Amsterdam
1992
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Schriftenreihe: | Centrum voor Wiskunde en Informatica <Amsterdam> / Department of Computer Science: Report CS
92,49 |
Schlagworte: | |
Zusammenfassung: | Abstract: "We study the exact number of symbol comparisons that are required to solve the string matching problem and present a family of efficient algorithms. Unlike previous string matching algorithms, the algorithms in this family do not 'forget' results of comparisons, what makes their analysis much simpler. In particular, we give a linear-time algorithm that finds all occurences of a pattern of length m in a text of length n in [formula] comparisons. The pattern preprocessing takes linear time and makes at most 2m comparisons. This algorithm establishes that, in general, searching for a long pattern is easier than searching for a short one We also show that any algorithm in the family of the algorithms presented must make at least [formula] symbol comparisons, for m = 2[superscript k] - 1 and any integer k [> or =] 1. |
Beschreibung: | 19 S. |
Internformat
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100 | 1 | |a Breslauer, Dany |e Verfasser |4 aut | |
245 | 1 | 0 | |a Efficient comparison based string matching |c Dany Breslauer ; Zvi Galil |
264 | 1 | |a Amsterdam |c 1992 | |
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336 | |b txt |2 rdacontent | ||
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490 | 1 | |a Centrum voor Wiskunde en Informatica <Amsterdam> / Department of Computer Science: Report CS |v 92,49 | |
520 | 3 | |a Abstract: "We study the exact number of symbol comparisons that are required to solve the string matching problem and present a family of efficient algorithms. Unlike previous string matching algorithms, the algorithms in this family do not 'forget' results of comparisons, what makes their analysis much simpler. In particular, we give a linear-time algorithm that finds all occurences of a pattern of length m in a text of length n in [formula] comparisons. The pattern preprocessing takes linear time and makes at most 2m comparisons. This algorithm establishes that, in general, searching for a long pattern is easier than searching for a short one | |
520 | 3 | |a We also show that any algorithm in the family of the algorithms presented must make at least [formula] symbol comparisons, for m = 2[superscript k] - 1 and any integer k [> or =] 1. | |
650 | 4 | |a Computer algorithms | |
700 | 1 | |a Galil, Zvi |e Verfasser |4 aut | |
810 | 2 | |a Department of Computer Science: Report CS |t Centrum voor Wiskunde en Informatica <Amsterdam> |v 92,49 |w (DE-604)BV008928356 |9 92,49 | |
999 | |a oai:aleph.bib-bvb.de:BVB01-005961366 |
Datensatz im Suchindex
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any_adam_object | |
author | Breslauer, Dany Galil, Zvi |
author_facet | Breslauer, Dany Galil, Zvi |
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author_sort | Breslauer, Dany |
author_variant | d b db z g zg |
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bvnumber | BV009015836 |
ctrlnum | (OCoLC)28981980 (DE-599)BVBBV009015836 |
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id | DE-604.BV009015836 |
illustrated | Not Illustrated |
indexdate | 2024-07-09T17:28:36Z |
institution | BVB |
language | English |
oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-005961366 |
oclc_num | 28981980 |
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physical | 19 S. |
publishDate | 1992 |
publishDateSearch | 1992 |
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series2 | Centrum voor Wiskunde en Informatica <Amsterdam> / Department of Computer Science: Report CS |
spelling | Breslauer, Dany Verfasser aut Efficient comparison based string matching Dany Breslauer ; Zvi Galil Amsterdam 1992 19 S. txt rdacontent n rdamedia nc rdacarrier Centrum voor Wiskunde en Informatica <Amsterdam> / Department of Computer Science: Report CS 92,49 Abstract: "We study the exact number of symbol comparisons that are required to solve the string matching problem and present a family of efficient algorithms. Unlike previous string matching algorithms, the algorithms in this family do not 'forget' results of comparisons, what makes their analysis much simpler. In particular, we give a linear-time algorithm that finds all occurences of a pattern of length m in a text of length n in [formula] comparisons. The pattern preprocessing takes linear time and makes at most 2m comparisons. This algorithm establishes that, in general, searching for a long pattern is easier than searching for a short one We also show that any algorithm in the family of the algorithms presented must make at least [formula] symbol comparisons, for m = 2[superscript k] - 1 and any integer k [> or =] 1. Computer algorithms Galil, Zvi Verfasser aut Department of Computer Science: Report CS Centrum voor Wiskunde en Informatica <Amsterdam> 92,49 (DE-604)BV008928356 92,49 |
spellingShingle | Breslauer, Dany Galil, Zvi Efficient comparison based string matching Computer algorithms |
title | Efficient comparison based string matching |
title_auth | Efficient comparison based string matching |
title_exact_search | Efficient comparison based string matching |
title_full | Efficient comparison based string matching Dany Breslauer ; Zvi Galil |
title_fullStr | Efficient comparison based string matching Dany Breslauer ; Zvi Galil |
title_full_unstemmed | Efficient comparison based string matching Dany Breslauer ; Zvi Galil |
title_short | Efficient comparison based string matching |
title_sort | efficient comparison based string matching |
topic | Computer algorithms |
topic_facet | Computer algorithms |
volume_link | (DE-604)BV008928356 |
work_keys_str_mv | AT breslauerdany efficientcomparisonbasedstringmatching AT galilzvi efficientcomparisonbasedstringmatching |