Okapi BM25 - Wikipedia
In information retrieval, Okapi BM25 (BM is an abbreviation of best matching) is a ranking function used by search engines to estimate the relevance of documents to a given search query. It is based on the probabilistic retrieval framework developed in the 1970s and 1980s by Stephen E. Robertson, Karen Spärck Jones, and others. The name of the actual ranking function is BM25. The fuller name, Okap
Pixel-art scaling algorithms - Wikipedia
Sprite of a television set (center) resized using simple nearest-neighbor scaling (left) and the 2xSaI interpolation algorithm (right) Comparison of common pixel art scaling algorithms. View in full resolution to see the differences. Pixel art scaling algorithms are graphical filters that attempt to enhance the appearance of hand-drawn 2D pixel art graphics. These algorithms are a form of automati
robots.txt - Wikipedia
robots.txt is the filename used for implementing the Robots Exclusion Protocol, a standard used by websites to indicate to visiting web crawlers and other web robots which portions of the website they are allowed to visit. The standard, developed in 1994, relies on voluntary compliance. Malicious bots can use the file as a directory of which pages to visit, though standards bodies discourage count
Linde–Buzo–Gray algorithm - Wikipedia
This article is missing information about general information, usage in the field (mention cinepak?), optimality conditions, choice of 𝜖s, model instead of training data, ELBG. Please expand the article to include this information. Further details may exist on the talk page. (December 2023) This article relies largely or entirely on a single source. Relevant discussion may be found on the talk pa
Content-based image retrieval - Wikipedia
General scheme of content-based image retrieval Content-based image retrieval, also known as query by image content (QBIC) and content-based visual information retrieval (CBVIR), is the application of computer vision techniques to the image retrieval problem, that is, the problem of searching for digital images in large databases (see this survey[1] for a scientific overview of the CBIR field). Co
Local energy-based shape histogram - Wikipedia
Local energy-based shape histogram (LESH) is a proposed image descriptor in computer vision. It can be used to get a description of the underlying shape. The LESH feature descriptor is built on local energy model of feature perception, see e.g. phase congruency for more details. It encodes the underlying shape by accumulating local energy of the underlying signal along several filter orientations,
Histogram of oriented gradients - Wikipedia
The histogram of oriented gradients (HOG) is a feature descriptor used in computer vision and image processing for the purpose of object detection. The technique counts occurrences of gradient orientation in localized portions of an image. This method is similar to that of edge orientation histograms, scale-invariant feature transform descriptors, and shape contexts, but differs in that it is comp
Hungarian algorithm - Wikipedia
The Hungarian method is a combinatorial optimization algorithm that solves the assignment problem in polynomial time and which anticipated later primal–dual methods. It was developed and published in 1955 by Harold Kuhn, who gave it the name "Hungarian method" because the algorithm was largely based on the earlier works of two Hungarian mathematicians, Dénes Kőnig and Jenő Egerváry.[1][2] However,
Shape context - Wikipedia
Shape context is a feature descriptor used in object recognition. Serge Belongie and Jitendra Malik proposed the term in their paper "Matching with Shape Contexts" in 2000.[1] The shape context is intended to be a way of describing shapes that allows for measuring shape similarity and the recovering of point correspondences.[1] The basic idea is to pick n points on the contours of a shape. For eac
LAPACK - Wikipedia
LAPACK ("Linear Algebra Package") is a standard software library for numerical linear algebra. It provides routines for solving systems of linear equations and linear least squares, eigenvalue problems, and singular value decomposition. It also includes routines to implement the associated matrix factorizations such as LU, QR, Cholesky and Schur decomposition.[2] LAPACK was originally written in F
Warwick Estevam Kerr - Wikipedia
Warwick Estevam Kerr (9 September 1922 – 15 September 2018) was a Brazilian agricultural engineer, geneticist, entomologist, professor and scientific leader, notable for his discoveries in the genetics and sex determination of bees. The Africanized bee in the western hemisphere is directly descended from 26[citation needed] Tanzanian queen bees (Apis mellifera scutellata) accidentally released by
Canny edge detector - Wikipedia
2.3 Gradient magnitude thresholding or lower bound cut-off suppression
Internet forum - Wikipedia
An Internet forum powered by phpBB FUDforum, another Internet forum software package The Wikipedia Village Pump is a forum used to discuss improvements on Wikipedia. An Internet forum, or message board, is an online discussion site where people can hold conversations in the form of posted messages.[1] They differ from chat rooms in that messages are often longer than one line of text, and are at l
Mecha - Wikipedia
This article is about the term used in science fiction, video games, anime, and manga. For other uses, see Mecha (disambiguation). Kuratas, a mecha made by Suidobashi Heavy Industry at the Maker Faire Tokyo (2012) In science fiction, mecha (Japanese: メカ, Hepburn: meka) or mechs are giant robots or machines typically depicted as piloted and as humanoid walking vehicles. The term was first used in J
Synchronized Multimedia Integration Language - Wikipedia
Synchronized Multimedia Integration Language (SMIL (/smaɪl/)) is a World Wide Web Consortium recommended Extensible Markup Language (XML) markup language to describe multimedia presentations. It defines markup for timing, layout, animations, visual transitions, and media embedding, among other things. SMIL allows presenting media items such as text, images, video, audio, links to other SMIL presen
Webster's Dictionary - Wikipedia
Toggle Noah Webster's American Dictionary of the English Language subsection
Bitap algorithm - Wikipedia
The bitap algorithm (also known as the shift-or, shift-and or Baeza-Yates-Gonnet algorithm) is an approximate string matching algorithm. The algorithm tells whether a given text contains a substring which is "approximately equal" to a given pattern, where approximate equality is defined in terms of Levenshtein distance – if the substring and pattern are within a given distance k of each other, the
Virginia Tech shooting - Wikipedia
The Virginia Tech shooting was a spree shooting that occurred on Monday, April 16, 2007, comprising two attacks on the campus of the Virginia Polytechnic Institute and State University (Virginia Tech) in Blacksburg, Virginia, United States. Seung-Hui Cho, an undergraduate student at the university, killed 32 people and wounded 17 others with two semi-automatic pistols. Six others were injured jump
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Thin plate spline - Wikipedia
List of school pranks - Wikipedia