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A single edit operation may be changing a single symbol of the string into another (cost W C), deleting a symbol (cost W D), or inserting a new symbol (cost W I). [ 2 ] If all edit operations have the same unit costs (W C = W D = W I = 1) the problem is the same as computing the Levenshtein distance of two strings.
A string, tied at A, is kept in tension by W, a suspended weight, and two bridges, B and the movable bridge C, while D is a freely moving wheel, [1] density may be tested by using different strings A monochord , also known as sonometer [ citation needed ] (see below ), is an ancient musical and scientific laboratory instrument , involving one ...
Given two strings a and b on an alphabet Σ (e.g. the set of ASCII characters, the set of bytes [0..255], etc.), the edit distance d(a, b) is the minimum-weight series of edit operations that transforms a into b. One of the simplest sets of edit operations is that defined by Levenshtein in 1966: [2] Insertion of a single symbol.
The most widely known string metric is a rudimentary one called the Levenshtein distance (also known as edit distance). [2] It operates between two input strings, returning a number equivalent to the number of substitutions and deletions needed in order to transform one input string into another.
Quintuple meter or quintuple time is a musical meter characterized by five beats in a measure. They may consist of any combination of variably stressed or equally stressed beats. Like the more common duple , triple , and quadruple meters, it may be simple , with each beat divided in half, or compound , with each beat divided into thirds.
Lux meter for measuring illuminance, i.e. incident luminous flux per unit area; Luminance meter for measuring luminance, i.e. luminous flux per unit area and unit solid angle; Light meter, an instrument used to set photographic exposures. It can be either a lux meter (incident-light meter) or a luminance meter (reflected-light meter), and is ...
The -weight of a string, for a letter , is the number of times that letter occurs in the string.More precisely, let be a finite set (called the alphabet), a letter of , and a string (where is the free monoid generated by the elements of , equivalently the set of strings, including the empty string, whose letters are from ).
fastp is a tool designed to provide all-in-one preprocessing for FastQ files. This tool is developed in C++ with multithreading supported. fastq-trim is very fast and memory-efficient tool written in C, following object-oriented design and strict code-quality practices. It runs in a fraction of the time of most popular trimming tools, while ...