• Thumbnail for Data Matrix
    A Data Matrix is a two-dimensional code consisting of black and white "cells" or dots arranged in either a square or rectangular pattern, also known as...
    23 KB (3,020 words) - 13:44, 31 July 2025
  • Data matrix may refer to: Matrix (mathematics), rectangular array of elements Data Matrix, a two-dimensional barcode Data matrix (multivariate statistics)...
    415 bytes (85 words) - 23:31, 15 August 2022
  • regression analysis, a design matrix, also known as model matrix or regressor matrix and often denoted by X, is a matrix of values of explanatory variables...
    9 KB (1,591 words) - 21:03, 14 April 2025
  • Thumbnail for Sparse matrix
    In numerical analysis and scientific computing, a sparse matrix or sparse array is a matrix in which most of the elements are zero. There is no strict...
    25 KB (3,295 words) - 17:12, 16 July 2025
  • Thumbnail for Singular matrix
    A singular matrix is a square matrix that is not invertible, unlike non-singular matrix which is invertible. Equivalently, an n {\displaystyle n} -by-...
    12 KB (1,579 words) - 01:41, 29 June 2025
  • correlation matrix and V {\displaystyle V} the diagonal variance matrix. Whitening a data matrix follows the same transformation as for random variables. An...
    6 KB (745 words) - 07:58, 22 July 2025
  • Thumbnail for Barcode
    Barcode (redirect from Matrix barcode)
    dimensions for encoding. A matrix code or simply a 2D code, is a two-dimensional way to represent information. It can represent more data per unit area. Apart...
    93 KB (7,828 words) - 04:17, 31 May 2025
  • Thumbnail for Principal component analysis
    Principal component analysis (category Matrix decompositions)
    computed by eigendecomposition of the data covariance matrix or singular value decomposition of the data matrix. PCA is the simplest of the true eigenvector-based...
    117 KB (14,851 words) - 14:54, 21 July 2025
  • Thumbnail for Ordinary least squares
    (meaning that P2 = P and M2 = M), and relate to the data matrix X via identities PX = X and MX = 0. Matrix M creates the residuals from the regression: ε ^...
    65 KB (9,098 words) - 10:14, 3 June 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...
    18 KB (1,926 words) - 05:17, 23 June 2025
  • missing data imputation, chemometrics, audio signal processing, recommender systems, and bioinformatics. In chemometrics non-negative matrix factorization...
    68 KB (7,783 words) - 02:31, 2 June 2025
  • \mathbf {X} :=(x_{ij})\in \mathbb {R} ^{N\times M}} denote the input data matrix, M {\displaystyle M} the number of columns corresponding with the number...
    8 KB (1,239 words) - 13:31, 18 June 2024
  • including the addition, in about 2005, of UII (unique item identifier) Data Matrix machine-readable information (MRI) requirements. MIL-STD-130 describes...
    20 KB (3,058 words) - 02:29, 19 July 2025
  • Thumbnail for Transpose
    transpose of a matrix is an operator which flips a matrix over its diagonal; that is, it switches the row and column indices of the matrix A by producing...
    19 KB (2,422 words) - 08:49, 10 July 2025
  • Thumbnail for Semacode
    also this company's trade name for their machine-readable ISO/IEC 16022 Data Matrix barcodes, which are used to encode Internet URLs. Semacodes are primarily...
    3 KB (345 words) - 18:50, 5 January 2025
  • The Matrix is a 1999 science fiction action film written and directed by the Wachowskis. It is the first installment in the Matrix film series, starring...
    170 KB (16,858 words) - 07:59, 4 August 2025
  • Thumbnail for PDF417
    and government organizations. PDF417 is one of the formats (along with Data Matrix) that can be used to print postage accepted by the United States Postal...
    11 KB (1,540 words) - 03:00, 17 May 2025
  • Thumbnail for QR code
    QR code (category Automatic identification and data capture)
    A QR code, short for quick-response code, is a type of two-dimensional matrix barcode invented in 1994 by Masahiro Hara of the Japanese company Denso Wave...
    96 KB (9,992 words) - 13:13, 1 August 2025
  • Look up Matrix, matrix, matrixes, or matrices in Wiktionary, the free dictionary. Matrix (pl.: matrices or matrixes) or MATRIX may refer to: Matrix (mathematics)...
    6 KB (860 words) - 01:30, 21 July 2025
  • Thumbnail for Matrix (protocol)
    Matrix (sometimes stylized as [matrix] or [m] for short) is an open standard[citation needed] and communication protocol for real-time communication....
    39 KB (3,417 words) - 09:04, 27 July 2025
  • Thumbnail for Direct part marking
    to a machine-readable code. The preferred codes are the Data Matrix and the QR Code. Data Matrix is used by Motorola. It is also preferred by NASA to mark...
    5 KB (665 words) - 23:04, 1 July 2021
  • eigenvalues generated from the data matrix to the eigenvalues generated from a Monte-Carlo simulated matrix created from random data of the same size. Parallel...
    7 KB (761 words) - 05:49, 3 August 2025
  • computer science, an adjacency matrix is a square matrix used to represent a finite graph. The elements of the matrix indicate whether pairs of vertices...
    20 KB (2,453 words) - 03:31, 18 May 2025
  • Thumbnail for Matrix multiplication
    columns in the first matrix must be equal to the number of rows in the second matrix. The resulting matrix, known as the matrix product, has the number...
    41 KB (6,581 words) - 15:09, 5 July 2025
  • appropriate games. The replay feature makes use of either of the two large data matrix barcodes found on Connecticut Lottery tickets. They contain information...
    15 KB (2,077 words) - 23:19, 15 July 2025
  • The Matrix Reloaded is a 2003 American science fiction action film written and directed by the Wachowskis. It is the sequel to The Matrix (1999) and the...
    54 KB (5,210 words) - 21:52, 25 July 2025
  • Thumbnail for Total least squares
    the data is generically equivalent to the best, in the Frobenius norm, low-rank approximation of the data matrix. In the least squares method of data modeling...
    20 KB (3,298 words) - 16:34, 28 October 2024
  • UID-marking is a set of data for assets that is globally unique and unambiguous. The technology used to mark an item is 2D Data Matrix ECC 200 Symbol. UID...
    15 KB (2,159 words) - 08:28, 10 November 2024
  • Thumbnail for Feature learning
    input data by analyzing the relationship between points in the dataset. Examples include dictionary learning, independent component analysis, matrix factorization...
    45 KB (5,114 words) - 09:22, 4 July 2025
  • or two-mode clustering is a data mining technique which allows simultaneous clustering of the rows and columns of a matrix. The term was first introduced...
    26 KB (3,159 words) - 10:03, 23 June 2025