pattern matching algorithms

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Pattern Matching Algorithms

Author : Alberto Apostolico
ISBN : 0195354346
Genre : Computers
File Size : 43. 20 MB
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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 : 87. 87 MB
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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 : 31. 37 MB
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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

Hardware Efficient Pattern Matching Algorithms And Architectures For Fast Intrusion Detection

Author : Monther Aldwairi
ISBN : OCLC:76956071
Genre :
File Size : 53. 78 MB
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Keywords: Digital ASIC Design, Network Processors, Network Security, String Matching, FPGA, Hardware Algorithms, Compression Algorithms, Pattern Matching, Snort, Intrusion Detection Systems.

Flexible Pattern Matching In Strings

Author : Gonzalo Navarro
ISBN : 0521813077
Genre : Computers
File Size : 57. 48 MB
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Presents recently developed algorithms for searching for simple, multiple and extended strings, regular expressions, exact and approximate matches.

Combinatorial Pattern Matching

Author : Suleyman C. Sahinalp
ISBN : 9783540278016
Genre : Computers
File Size : 58. 13 MB
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Hardware Efficient Pattern Matching Algorithms And Architectures For Fast Intrusion Detection

Author :
ISBN : OCLC:656420952
Genre :
File Size : 83. 20 MB
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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.

Analysis And Design Of Algorithms

Author : A.A.Puntambekar
ISBN : 8184313772
Genre :
File Size : 21. 25 MB
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What is an algorithm ? Fundamentals of algorithmic problem solving, Important problem types, Fundamental data structures.Fundamentals of the Analysis of Algorithm Efficiency : Analysis framework.Asymptotic notations and basic efficiency classes, Mathematical analysis of nonrecursive and recursive algorithms, Example - Fibonacci numbers.Brute Force : Selection sort and bubble sort, Sequential search and brute-force string matching, Exhaustive search.Divide and Conquer : Mergesort, Quicksorst, Binary search. Binary tree traversals and related properties, Multiplication of large integers and Stressen's matrix multiplication.Decrease and Conquer : Insertion sort, Depth first search, Breadth first search, Topological sorting.Algorithms for generating combinatorial objects.Transform and Conquer : Presorting, Balanced search trees, Heaps and heapsort, Problem reduction.Space and Time Tradeoffs : Sorting by counting, Input enhancement in string matching, Hashing.Dynamic Programming : Computing a binomial coefficient, Warshall's and Floyd's algorithms, The Knapsack problem and memory functions.Greedy Technique : Prim's algorithm, Kruskal's algorithm, Dujkstra's algorithm, Huffman trees.Limitations of Algorithm Power : Lower-bound arguments, Decision trees., P, NP and NP-complete problems.Coping with the Limitations of Algorithm Power : Backtracking, Branch-and-bound, Approximation algorithms for NP-hard problems.

Handbook Of Exact String Matching Algorithms

Author : Christian Charras
ISBN : 0954300645
Genre : Computers
File Size : 78. 32 MB
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String matching is a very important subject in the wider domain of text processing. It consists of finding one, or more generally, all the occurrences of a string (more generally called a pattern) in a text. The Handbook of Exact String Matching Algorithms presents 38 methods for solving this problem. For each, it gives the main features, a description, its C code, an example and references.

Combinatorial Pattern Matching

Author : Martin Farach-Colton
ISBN : 3540647392
Genre : Computers
File Size : 78. 72 MB
Format : PDF
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This is a fair overview of the basic problems in Solar Physics. The authors address not only the physics that is well understood but also discuss many open questions. The lecturers' involvement in the SOHO mission guarantees a modern and up-to-date analysis of observational data and makes this volume an extremely valuable source for further research.

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