• In bioinformatics and evolutionary biology, a substitution matrix describes the frequency at which a character in a nucleotide sequence or a protein sequence...
    15 KB (2,105 words) - 07:00, 24 September 2024
  • an iterative process called forward substitution for lower triangular matrices and analogously back substitution for upper triangular matrices. The process...
    21 KB (3,152 words) - 02:46, 14 January 2025
  • Thumbnail for BLOSUM
    BLOSUM (redirect from Blosum matrix)
    In bioinformatics, the BLOSUM (BLOcks SUbstitution Matrix) matrix is a substitution matrix used for sequence alignment of proteins. BLOSUM matrices are...
    22 KB (2,554 words) - 13:37, 5 November 2024
  • Thumbnail for Smith–Waterman algorithm
    includes the substitution matrix and the gap-scoring scheme). The main difference to the Needleman–Wunsch algorithm is that negative scoring matrix cells are...
    36 KB (4,666 words) - 19:31, 9 October 2024
  • It is also called a probability matrix, transition matrix, substitution matrix, or Markov matrix. The stochastic matrix was first developed by Andrey Markov...
    19 KB (2,806 words) - 12:03, 28 January 2025
  • Thumbnail for Substitution model
    proteins). Substitution models are used to calculate the likelihood of phylogenetic trees using multiple sequence alignment data. Thus, substitution models...
    65 KB (8,834 words) - 03:34, 23 January 2025
  • deciphers the text by performing the inverse substitution process to extract the original message. Substitution ciphers can be compared with transposition...
    30 KB (4,065 words) - 19:39, 25 December 2024
  • matrix Position-specific scoring matrix Similarity matrix Substitution matrix Matrix Planting Matrix population models Biology Eighth Edition Campbell...
    5 KB (629 words) - 09:00, 9 November 2024
  • in step 2 with all the 3-letter words. By using the scoring matrix (substitution matrix) to score the comparison of each residue pair, there are 20^3...
    39 KB (4,968 words) - 03:28, 20 January 2025
  • parts of the Slutsky equation, namely the substitution effect and income effect. In general, the substitution effect is negative. Slutsky derived this...
    15 KB (2,946 words) - 20:46, 23 January 2025
  • Thumbnail for Matrix (mathematics)
    In mathematics, a matrix (pl.: matrices) is a rectangular array or table of numbers, symbols, or expressions, with elements or entries arranged in rows...
    108 KB (13,491 words) - 16:28, 3 February 2025
  • In calculus, integration by substitution, also known as u-substitution, reverse chain rule or change of variables, is a method for evaluating integrals...
    20 KB (3,324 words) - 16:32, 11 October 2024
  • integrals (see substitution rule for multiple variables). When m = 1, that is when f : Rn → R is a scalar-valued function, the Jacobian matrix reduces to...
    26 KB (3,712 words) - 16:55, 7 February 2025
  • Thumbnail for Multiple sequence alignment
    simpler substitution matrix, wherein only identical matches and mismatches are considered, is typical. The scores in the substitution matrix may be either...
    49 KB (6,213 words) - 12:51, 15 September 2024
  • Thumbnail for Point accepted mutation
    matrices are sometimes used as substitution matrices to score sequence alignments for proteins. Each entry in a PAM matrix indicates the likelihood of the...
    31 KB (4,156 words) - 21:26, 1 April 2024
  • Thumbnail for Penrose tiling
    larger size convention for the B-tiles), which can be summarized in a substitution matrix equation: ( B L B S ) = ( 1 1 1 0 ) ( A L A S ) . {\displaystyle...
    51 KB (5,865 words) - 19:00, 30 January 2025
  • Thumbnail for Levenshtein distance
    it with fewer than 3 edits: kitten → sitten (substitution of "s" for "k"), sitten → sittin (substitution of "i" for "e"), sittin → sitting (insertion...
    21 KB (2,434 words) - 00:31, 15 February 2025
  • theory, the Laplacian matrix, also called the graph Laplacian, admittance matrix, Kirchhoff matrix, or discrete Laplacian, is a matrix representation of a...
    45 KB (5,035 words) - 01:07, 16 February 2025
  • Thumbnail for Sequence alignment
    lineages. The absence of substitutions, or the presence of only very conservative substitutions (that is, the substitution of amino acids whose side...
    56 KB (6,921 words) - 17:29, 6 January 2025
  • classical adjoint of a square matrix A, adj(A), is the transpose of its cofactor matrix. It is occasionally known as adjunct matrix, or "adjoint", though that...
    29 KB (4,815 words) - 17:10, 18 January 2025
  • (Coltrane Matrix or cycle, also known as chromatic third relations and multi-tonic changes) are a harmonic progression variation using substitute chords...
    22 KB (1,709 words) - 00:56, 6 February 2025
  • In mathematics, the Hessian matrix, Hessian or (less commonly) Hesse matrix is a square matrix of second-order partial derivatives of a scalar-valued function...
    22 KB (3,537 words) - 16:54, 7 February 2025
  • universal trigonometric substitution, and also known by variant names such as half-tangent substitution or half-angle substitution. It is sometimes misattributed...
    21 KB (3,042 words) - 10:26, 12 August 2024
  • spectral clustering of the self-similarity matrix. Recurrence plot Distance matrix Similarity matrix Substitution matrix Dot plot (bioinformatics) M. A. Casey;...
    4 KB (538 words) - 02:42, 3 February 2025
  • specifically the problem of statistical classification, a confusion matrix, also known as error matrix, is a specific table layout that allows visualization of the...
    15 KB (1,665 words) - 11:30, 8 January 2025
  • In mathematics, a symmetric matrix M {\displaystyle M} with real entries is positive-definite if the real number x ⊤ M x {\displaystyle \mathbf {x} ^{\top...
    50 KB (8,704 words) - 20:03, 13 February 2025
  • increasing the gap length. Substitution matrices such as BLOSUM are used for sequence alignment of proteins. A Substitution matrix assigns a score for aligning...
    19 KB (2,483 words) - 14:32, 2 July 2024
  • In linear algebra, a Vandermonde matrix, named after Alexandre-Théophile Vandermonde, is a matrix with the terms of a geometric progression in each row:...
    25 KB (5,347 words) - 18:44, 11 February 2025
  • Thumbnail for List of named matrices
    multiport system. State transition matrix — exponent of state matrix in control systems. Substitution matrix — a matrix from bioinformatics, which describes...
    32 KB (1,336 words) - 16:53, 5 November 2024
  • Thumbnail for Gaussian elimination
    (sometimes called back substitution) continues to use row operations until the solution is found; in other words, it puts the matrix into reduced row echelon...
    33 KB (4,368 words) - 03:47, 26 January 2025