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Kari Karhunen
Kari Onni Uolevi Karhunen (April 12, 1915 – September 16, 1992) was a Finnish probabilist and a mathematical statistician. He is best known for the Karhunen–Loève theorem and Karhunen–Loève transform. Education and career Karhunen received his master's degree in 1938 and his doctorate in 1950 from the University of Helsinki. The topic of his thesis was (in German) ''Über lineare Methoden in der Wahrscheinlichkeitsrechnung'', in English ''On linear methods in probability and statistics''. The advisor of his thesis was the mathematician Rolf Nevanlinna. Karhunen worked as a lecturer at the University of Helsinki before leaving the academic world to be employed by the insurance corporation Suomi, becoming CEO of the company in 1963. Karhunen served in 1955 on the Finnish Committee for Mathematical Machines, which developed the first Finnish computer ESKO. See also * Michel Loève * Harold Hotelling * Principal component analysis Principal component analysis (PC ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helsinki
Helsinki () is the Capital city, capital and most populous List of cities and towns in Finland, city in Finland. It is on the shore of the Gulf of Finland and is the seat of southern Finland's Uusimaa region. About people live in the municipality, with million in the Helsinki capital region, capital region and million in the Helsinki metropolitan area, metropolitan area. As the most populous List of urban areas in Finland by population, urban area in Finland, it is the country's most significant centre for politics, education, finance, culture, and research. Helsinki is north of Tallinn, Estonia, east of Stockholm, Sweden, and west of Saint Petersburg, Russia. Helsinki has significant History of Helsinki, historical connections with these three cities. Together with the cities of Espoo, Vantaa and Kauniainen—and surrounding commuter towns, including the neighbouring municipality of Sipoo to the east—Helsinki forms a Helsinki metropolitan area, metropolitan are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Janis Bubenko
Janis Askolds Bubenko junior (; 3February 193515January 2022) was a Swedish computer scientist and professor emeritus at the Department of Computer and Systems Science, Royal Institute of Technology and Stockholm University. Biography Born 1935 in Riga, Latvia, Bubenko fled with his family to Sweden at the end of World War II in 1944. He received his MSc in civil engineering from the Chalmers University of Technology in Gothenburg, Sweden, in 1958, his Licentiate of Technology in structural mechanics also from the Chalmers University of Technology in 1958. In 1973 he received his Ph.D. in information systems from the Royal Institute of Technology in Stockholm in 1973, and his habilitation in 1974.Janis A. Bubenko jr extended CV, 2004. Accessed 12 July 2013 In 1961 Bubenko started his career as a manager in Univac Scandin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1915 Births
Events Below, the events of World War I have the "WWI" prefix. January *January – British physicist Sir Joseph Larmor publishes his observations on "The Influence of Local Atmospheric Cooling on Astronomical Refraction". *January 1 ** WWI: British Royal Navy battleship HMS Formidable (1898), HMS ''Formidable'' is sunk off Lyme Regis, Dorset, England, by an Imperial German Navy U-boat, with the loss of 547 crew. **WWI: Battle of Broken Hill: A train ambush near Broken Hill, Australia, is carried out by two men (claiming to be in support of the Ottoman Empire) who are killed, together with four civilians. * January 5 – Joseph E. Carberry sets an altitude record of , carrying Capt. Benjamin Delahauf Foulois as a passenger, in a fixed-wing aircraft. * January 12 ** The United States House of Representatives rejects a proposal to give women the right to vote. ** ''A Fool There Was (1915 film), A Fool There Was'' premières in the United States, starring Theda Bara as a '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Probability Theorists
Probability is a branch of mathematics and statistics concerning events and numerical descriptions of how likely they are to occur. The probability of an event is a number between 0 and 1; the larger the probability, the more likely an event is to occur."Kendall's Advanced Theory of Statistics, Volume 1: Distribution Theory", Alan Stuart and Keith Ord, 6th ed., (2009), .William Feller, ''An Introduction to Probability Theory and Its Applications'', vol. 1, 3rd ed., (1968), Wiley, . This number is often expressed as a percentage (%), ranging from 0% to 100%. A simple example is the tossing of a fair (unbiased) coin. Since the coin is fair, the two outcomes ("heads" and "tails") are both equally probable; the probability of "heads" equals the probability of "tails"; and since no other outcomes are possible, the probability of either "heads" or "tails" is 1/2 (which could also be written as 0.5 or 50%). These concepts have been given an axiomatic mathematical formaliza ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Finnish Statisticians
Finnish may refer to: * Something or someone from, or related to Finland * Culture of Finland * Finnish people or Finns, the primary ethnic group in Finland * Finnish language, the national language of the Finnish people * Finnish cuisine See also * Finish (other) * Finland (other) * Suomi (other) * {{disambiguation Language and nationality disambiguation pages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Principal Component Analysis
Principal component analysis (PCA) is a linear dimensionality reduction technique with applications in exploratory data analysis, visualization and data preprocessing. The data is linearly transformed onto a new coordinate system such that the directions (principal components) capturing the largest variation in the data can be easily identified. The principal components of a collection of points in a real coordinate space are a sequence of p unit vectors, where the i-th vector is the direction of a line that best fits the data while being orthogonal to the first i-1 vectors. Here, a best-fitting line is defined as one that minimizes the average squared perpendicular distance from the points to the line. These directions (i.e., principal components) constitute an orthonormal basis in which different individual dimensions of the data are linearly uncorrelated. Many studies use the first two principal components in order to plot the data in two dimensions and to visually identi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harold Hotelling
Harold Hotelling (; September 29, 1895 – December 26, 1973) was an American mathematical statistician and an influential economic theorist, known for Hotelling's law, Hotelling's lemma, and Hotelling's rule in economics, as well as Hotelling's T-squared distribution in statistics. He also developed and named the principal component analysis method widely used in finance, statistics and computer science. He was associate professor of mathematics at Stanford University from 1927 until 1931, a member of the faculty of Columbia University from 1931 until 1946, and a professor of Mathematical Statistics at the University of North Carolina at Chapel Hill from 1946 until his death. A street in Chapel Hill bears his name. In 1972, he received the North Carolina Award for contributions to science. Statistics Hotelling is known to statisticians because of Hotelling's T-squared distribution which is a generalization of the Student's t-distribution in multivariate setting, and i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michel Loève
Michel Loève (; January 22, 1907 – February 17, 1979) was a French-American probability theory, probabilist and mathematical statistics, mathematical statistician, of Jewish origin. He is known in mathematical statistics and probability theory for the Karhunen–Loève theorem and Karhunen–Loève transform. Michel Loève was born in Jaffa (then part of the Ottoman Empire) in 1907, to a Jewish family. He passed most of his childhood years in Egypt and received his primary and secondary education there in French schools. Later, after achieving the grades of B.L. in 1931 and A.B. in 1936, he studied mathematics at the Université de Paris under Paul Lévy (mathematician), Paul Lévy, and received his ''Doctor of Science, Doctorat ès Sciences (Mathématiques)'' in 1941. In 1936 was employed as actuaire of the University of Lyon. Because of his Jewish origin, he was arrested during the German occupation of France during World War II, German occupation of France and sent to Dranc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Federation For Information Processing
The International Federation for Information Processing (IFIP) is a global organisation for researchers and professionals working in the field of computing to conduct research, develop standards and promote information sharing. Established in 1960 under the auspices of UNESCO, IFIP is recognised by the United Nations and links some 50 national and international societies and academies of science with a total membership of over half a million professionals. IFIP is based in Laxenburg, Austria and is an international, non-governmental organisation that operates on a non-profit basis. Overview IFIP activities are coordinated by 14 Technical Committees (TCs) which are organised into more than 100 Working Groups (WGs), bringing together over 3,500 ICT professionals and researchers from around the world to conduct research, develop standards and promote information sharing. Each TC covers a particular aspect of computing and related disciplines, as detailed below. IFIP actively pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ESKO
Esko is a Finnish masculine given name and surname. Given name People with the given name include: * Esko Aho (born 1954), former Prime Minister of Finland * Esko Ahonen (1955–2025), Finnish politician * Esko Almgren (born 1932), Finnish politician * Esko Elstelä (1931–2007), Finnish screenwriter and film director * Esko Hamilo (born 1945), Finnish diplomat * Esko Hillebrandt (born 1962), Finnish rower * Esko Järvinen (1907–1976), Finnish skier * Esko Jussila (born 1934), Finnish skier * Esko Kaonpää (1942–2002), Finnish ice hockey player * Esko Karhunen (1928–2016), Finnish basketball player * Esko Karu (1946–2003), Canadian skier * Esko Kiviranta (born 1950), Finnish politician * Esko Kovero (born 1958), Finnish actor * Esko Kunnamo (1929–2014), Finnish diplomat * Esko Laine (born 1961), Finnish double-bassist and educator * Esko Lähtevänoja (born 1953), Finnish skier * Esko Luostarinen (born 1935), Finnish ice hockey player * Esko Lyytikkä (1929–1997 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mathematics
Mathematics is a field of study that discovers and organizes methods, Mathematical theory, theories and theorems that are developed and Mathematical proof, proved for the needs of empirical sciences and mathematics itself. There are many areas of mathematics, which include number theory (the study of numbers), algebra (the study of formulas and related structures), geometry (the study of shapes and spaces that contain them), Mathematical analysis, analysis (the study of continuous changes), and set theory (presently used as a foundation for all mathematics). Mathematics involves the description and manipulation of mathematical object, abstract objects that consist of either abstraction (mathematics), abstractions from nature orin modern mathematicspurely abstract entities that are stipulated to have certain properties, called axioms. Mathematics uses pure reason to proof (mathematics), prove properties of objects, a ''proof'' consisting of a succession of applications of in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
