pattern matching algorithms

Download Book Pattern Matching Algorithms in PDF format. You can Read Online Pattern Matching Algorithms here in PDF, EPUB, Mobi or Docx formats.

Pattern Matching Algorithms

Author : Alberto Apostolico
ISBN : 0195354346
Genre : Computers
File Size : 44. 66 MB
Format : PDF, Docs
Download : 949
Read : 269

Download Now


Issues of matching and searching on elementary discrete structures arise pervasively in computer science and many of its applications, and their relevance is expected to grow as information is amassed and shared at an accelerating pace. Several algorithms were discovered as a result of these needs, which in turn created the subfield of Pattern Matching. This book provides an overview of the current state of Pattern Matching as seen by specialists who have devoted years of study to the field. It covers most of the basic principles and presents material advanced enough to faithfully portray the current frontier of research. Because of these recent advances, this is the right time for a book that brings together information relevant to both graduate students and specialists in need of an in-depth reference.

Combinatorial Pattern Matching Algorithms In Computational Biology Using Perl And R

Author : Gabriel Valiente
ISBN : 1420069748
Genre : Science
File Size : 40. 19 MB
Format : PDF, ePub, Docs
Download : 926
Read : 322

Download Now


Emphasizing the search for patterns within and between biological sequences, trees, and graphs, Combinatorial Pattern Matching Algorithms in Computational Biology Using Perl and R shows how combinatorial pattern matching algorithms can solve computational biology problems that arise in the analysis of genomic, transcriptomic, proteomic, metabolomic, and interactomic data. It implements the algorithms in Perl and R, two widely used scripting languages in computational biology. The book provides a well-rounded explanation of traditional issues as well as an up-to-date account of more recent developments, such as graph similarity and search. It is organized around the specific algorithmic problems that arise when dealing with structures that are commonly found in computational biology, including biological sequences, trees, and graphs. For each of these structures, the author makes a clear distinction between problems that arise in the analysis of one structure and in the comparative analysis of two or more structures. He also presents phylogenetic trees and networks as examples of trees and graphs in computational biology. This book supplies a comprehensive view of the whole field of combinatorial pattern matching from a computational biology perspective. Along with thorough discussions of each biological problem, it includes detailed algorithmic solutions in pseudo-code, full Perl and R implementation, and pointers to other software, such as those on CPAN and CRAN.

Computer Algorithms

Author : Jun-ichi Aoe
ISBN : 0818654627
Genre : Computers
File Size : 34. 63 MB
Format : PDF, Docs
Download : 198
Read : 1168

Download Now


Introduces the basic concepts and characteristics of string pattern matching strategies and provides numerous references for further reading. The text describes and evaluates the BF, KMP, BM, and KR algorithms, discusses improvements for string pattern matching machines, and details a technique for detecting and removing the redundant operation of the AC machine. Also explored are typical problems in approximate string matching . In addition, the reader will find a description for applying string pattern matching algorithms to multidimensional matching problems, an investigation of numerous hardware-based solutions for pattern matching, and an examination of hardware approaches for full text search. The first chapter's survey paper describes the basic concepts of algorithm classifications. The five chapters that follow include 15 papers further illustrating these classifications: Single keyword matching Matching sets of keywords Approximate string matching Multidimensional matching Hardware matching

Flexible Pattern Matching In Strings

Author : Gonzalo Navarro
ISBN : 0521813077
Genre : Computers
File Size : 72. 48 MB
Format : PDF, ePub, Mobi
Download : 581
Read : 987

Download Now


Presents recently developed algorithms for searching for simple, multiple and extended strings, regular expressions, exact and approximate matches.

Tight Bounds On The Complexity Of The Boyer Moore Pattern Matching Algorithm Classic Reprint

Author : Richard Cole
ISBN : 0331611562
Genre : Mathematics
File Size : 61. 20 MB
Format : PDF, ePub, Docs
Download : 636
Read : 949

Download Now


Excerpt from Tight Bounds on the Complexity of the Boyer-Moore Pattern Matching Algorithm Pattern matching is the problem of finding a pattern of length m in a string of length n; often, all occurences of the pattern are sought. This problem is well studied and is a staple of text books on algorithms (for instance, It is an important subproblem in a number of domains including text editing, symbol manipulation and data retrieval. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

New Pattern Matching Algorithms For Network Security Applications

Author : Liu Yang
ISBN : OCLC:856979491
Genre : Computer networks
File Size : 40. 75 MB
Format : PDF
Download : 988
Read : 581

Download Now


Modern network security applications, such as network-based intrusion detection systems (NIDS) and firewalls, routinely employ deep packet inspection to identify malicious traffic. In deep packet inspection, the contents of network packets are matched against patterns of malicious traffic to identify attack-carrying packets. The pattern matching algorithms employed for deep packet inspection must satisfy two requirements. First, the algorithms must be fast. Network security applications are often implemented as middle-boxes that reside on high-speed Gbps links, and the algorithms are expected to perform at such speeds. Second, the algorithms must be space-efficient. The middle-boxes that perform pattern matching are often implemented as hardware components, they employ fast but expensive SRAM technology to ensure good performance. Unfortunately, existing pattern matching algorithms suffer from a fundamental time-space tradeoff. The large majority of patterns are regular expressions, and there are three prior approaches for matching such patterns: deterministic finite automaton (DFAs), non-deterministic finite automaton (NFAs), and recursive backtracking-based approaches. DFAs are fast to operate, but are space-inefficient. NFAs are space efficient, but are slow to operate. Recursive backtracking is fast for benign packets but is vulnerable to attack-carrying packets that can induce algorithmic complexity attacks. This dissertation proposes novel algorithms for time- and space-efficient pattern matching that also resist known algorithmic complexity attacks. It presents three contributions. First, it introduces NFA-OBDDs, a new data structure that allows time-and space-efficient matching of regular expressions. Second, it presents an extension to NFA-OBDDs that allows them to model submatch extraction, an important feature in real-world patterns used by network security applications. Finally, it presents a technique to efficiently match a non-regular pattern language: regular expressions extended with back-references. This disseration presents experimental results demonstrating that the new algorithms can beat the performance of existing, widely-deployed algorithms (such as Google's RE2 and PCRE) by several orders of magnitude.

Hardware Efficient Pattern Matching Algorithms And Architectures For Fast Intrusion Detection

Author :
ISBN : OCLC:656420952
Genre :
File Size : 30. 5 MB
Format : PDF, ePub
Download : 807
Read : 1283

Download Now


Intrusion detection processors are becoming a predominant feature in the field of network hardware. As demand on more network speed increases and new network protocols emerge, network intrusion detection systems are increasing in importance and are being integrated in network processors. Currently, most intrusion detection systems are software running on a general purpose processor. Unfortunately, it is becoming increasingly difficult for software based intrusion detection systems to keep up with increasing network speeds (OC192 and 10Gbps at backbone networks). Signature-based intrusion detection systems monitor network traffic for security threats by scanning packet payloads for attack signatures. Intrusion detection systems have to run at wire speed and need to be configurable to protect against emerging attacks. This dissertation describes the concept, structure and algorithms for a special purpose hardware accelerator designed to meet those demands. We consider the problem of string matching which is the most computationally intensive task in intrusion detection. A configurable string matching accelerator is developed with the focus on increasing throughput while maintaining the configurability provided by the software intrusion detection systems. A hardware algorithm for efficient data storage and fast retrieval is used to compress, store and retrieve attack signatures. Our algorithms reduce the size of the rules to fit on chip and enables intrusion detection to run at line rates and faster.

Computer Algorithms

Author : Jun-ichi Aoe
ISBN : 0818621230
Genre : Computers
File Size : 36. 2 MB
Format : PDF, ePub, Docs
Download : 679
Read : 1150

Download Now



Combinatorial Pattern Matching

Author : Suleyman C. Sahinalp
ISBN : 9783540223412
Genre : Computers
File Size : 35. 80 MB
Format : PDF, ePub, Mobi
Download : 274
Read : 970

Download Now


This book constitutes the refereed proceedings of the 15th Annual Symposium on Combinatorial Pattern Matching, CPM 2004, held in Istanbul, Turkey in July 2004. The 36 revised full papers presented were carefully reviewed and selected from 79 submissions. The papers are devoted to current theoretical and computational aspects of searching and matching of strings and more complicate patterns, such as trees, regular expressions, graphs, point sets, and arrays. Among the application fields addressed are computational biology, bioinformatics, genomics, proteinomics, the web, data compression, coding, multimedia, information retrieval, data analysis, pattern recognition, and computer vision.

Combinatorial Pattern Matching

Author : Raffaele Giancarlo
ISBN : 9783540676331
Genre : Computers
File Size : 71. 46 MB
Format : PDF, ePub
Download : 877
Read : 1154

Download Now


This book constitutes the refereed proceedings of the 11th Annual Symposium on Combinatorial Pattern Matching, CPM 2000, held in Montreal, Canada, in June 2000. The 29 revised full papers presented together with 3 invited contributions and 2 tutorial lectures were carefully reviewed and selected from 44 submissions. The papers are devoted to current theoretical and algorithmic issues of searching and matching strings and more complicated patterns such as trees, regular expression graphs, point sets and arrays as well as to advanced applications of CPM in areas such as Internet, computational biology, multimedia systems, information retrieval, data compression, and pattern recognition.

Top Download:

Best Books