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Gini index
| Глоссарий по искусственному интеллекту |
A figure of merit used in machine learning and statistical models, such as classification and regression trees (cart). the gini index for a grouping is defined to be 1-s pi2, where pi is the proportion of cases in the i-th category. it reaches a minimum of 0 when all the cases in a node or grouping are in the same category, and its maximum when all the cases are spread out equally across all of the categories. see also: classification and regression trees.
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Gini coefficient, английский
Gini coefficients, английский
A precise way to measure the position of a lorenz curve, characterizing the degree of inequality across components.
Ginie, английский
Geographic information network in europe
Giniekolgiem, польский
Index, английский
- Append index to your adjective as a way of measuring the degree of something. example that car has a high rust index. my little brother has a low coolness index.
- The interest rate or adjustment standard that determines the changes in monthly payments for an adjustable rate loan.
- (индекс) эталон сравнения для измерения финансовой или экономической эффективности; например, s&p500 или индекс потребительских цен;
- Inter-nasa data exchange (system)
- Индекс j
- Эталон сравнения для измерения финансовой или экономи¬ческой эффективности. например, s &t500 или индекс потребитель¬ских цен.
- Индекс (классификации); указатель; проставлять классификационные индексы
- Показатель (обобщенная количественная характеристика социально-экономических явлений и про61 цессов в их качественной определенности в условиях конкретного места и времени, например численность населения), см. indicator
- N индекс flesch–kincaid ~ (образовательный) индекс флеша–кинсайда indexicality n индексальность
- The flat bar which carries the nonius scale and index-glass of a quadrant, octant, quintant, or sextant.
- To divide into equal marked parts such as quadrants or degrees of a circle.
- A sign that informs by its correlation with or causal connection (->causality) to its referent (->symptom). in the social sciences, a valid measure of something else (->measurement).
- The dynamic alphabet bar that runs along the bottom of the list views in the microsoft dynamics crm web application window. when a user clicks a letter, the list view filters the available records by that letter. index (v)
- Statistical composite that measures changes in the economy or in financial markets, often expressed in percentage changes from a base year or from the previous month. indexes measure the ups and downs of stock, bond, and some commodities markets, in terms of market prices and weighting of companies in the index.
- A number, usually a percentage, upon which future interest rates for adjustable rate mortgages are based.
- The database search engines use to store and retrieve information gathered during the crawling process.
Index, английский
Index, английский
Index, латинский
Index (cmi), английский
Index -, английский
- Поправка за смещение пятки рейки
- Цементационная скважина
Index allocation, английский
A ntfs file attribute type used to implement folders and other indexes.
Index allocation map, английский
A page that maps the extents in a 4-gb part of a database file that is used by an allocation unit.
Index and option market (iom), английский
A division of the cme established in 1982 for trading stock index products and options.
Index arbitrage, английский
An investment trading strategy that exploits divergences between actual and theoretical futures prices. an example is the simultaneous buying (selling) of stock index futures (i.e., s&p 500) while selling (buying) the underlying stocks of that index, capturing as profit the temporarily inflated basis between these two baskets. often, the point at which profitability exists is expressed at the block call as the number of points the future must be over or under the underlying basket for an arbitrage opportunity to exist. see: program trading.
Index area, английский
Область индексов; зона индексов
Index array, английский
Index balancing, английский
Балансировка индексов
Index bed, английский
Index buffer, английский
Буферный индекс-регистр
Index build, английский
Построение индекса (базы данных)
Statistical, английский
Classification, английский
- Assigning data (i e , cases or observations) cases to one of a fixed number of possible classes (represented by a nominal output variable)
- Классификация; систематизация; засекречивание
- Классификация (упорядоченная группировка явлений и объектов; может утверждаться в качестве стандарта, в том числе национального или международного), см. nomenclature
- The work of putting references or components into order so as to be able to refer to them again and identify them easily the abo classification of blood
- Классификация
- N классификация language typological ~ типологическая классификация classificatory a классификационный matrix classifying a классифицирующий article
- The placement of an item under the correct number in the customs tariff for duty purposes. at times this procedure becomes highly complicated; it is not uncommon for importers to resort to litigation over the correct duty to be assessed by the customs on a given item
- Классификация; категоризация; сортировка
- The process of assigning a set of records from a database (observations in a dataset) into (usually) one of ``small" number of pre-specified disjoint categories. related techniques include regression, which predicts a range of values and clustering, which (typically) allows the categories to form themselves. the classification can be "fuzzy" in several senses of the word. in usual sense, the classification technique can allow a single record to belong to multiple (disjoint) categories with a probability (estimated) of being in each class. the categories can also overlap when they are developed either through a hierarchical model or through an agglomerative technique. finally, the classification can be fuzzy in the sense of using "fuzzy logic" techniques. see also: clustering, fuzzy logic, regression. classification and regression trees (cart) classification and regression trees (cart) is a particular form of decision tree used in data mining and statistics.
- Классификация. для порошков (пыли)—разделение образца на фракции по размеру, форме и плотности частиц с помощью жидкости; основано, например, на различной скорости оседания фракций в жидкости или на разном поведении частиц в потоке жидкости.
- A systematic organization of classes.
- The placement of an incident into a hierarchy of descriptors that indicate what the incident is generally about. for example, an incident could be classified as being related to software, and then to microsoft, and then to word 2003.
- The type of updates that sce downloads from microsoft update during synchronization.
- An offender is classified for a particular security level and housed in an appropriate facility based on assessment of their crime, security risk and prison behavior.
- A code which provides a method for categorizing the invention.
- The code for a specific type of complementary work or variation.
- Классификация, номенклатура
Regression, английский
- Statistical technique used to evaluate relationships among variables (22).
- Регрессия
- 1. a stage where symptoms of a disease are disappearing and the person is getting better 2. (in psychiatry) the process of returning to a mental state which existed when the person was younger
- Regression commonly refers to the process of developing an empirical (data-driven) model to predict and/or explain one or more attributes in a database or set of data. it is most frequently associated with the simple linear model (y=mx+b) taught in most introductory statistics courses; the same ideas have been extended in many directions, including classification problems. when the emphasis is on hypothesis testing and simple models, the regression output is typically a few parameters that provide a direct linkage from the input variables to the predicted variables (or classification). in other situations the emphasis is on explaining as much of the variability in the output variables as is "reasonable" from the input variables. in this case, there are a number of "advanced" techniques, such as smoothing splines, decision trees, neural nets, and so forth, for which there are many "free" parameters. the meaning of any one of these parameters can be obscure. many data mining techniques are, at their core, variations on well-known regression techniques. see also: classification, clustering, decision trees, neural nets.
- The reappearance of a previously fixed problem.
- The statistical process of predicting one or more continuous variables, such as profit or loss, based on other attributes in the dataset.
- A mathematical technique used to explain and/or predict. the general form is y = a + bx + u, where y is the variable that we are trying to predict; x is the variable that we are using to predict y, a is the intercept; b is the slope, and u is the regression residual. the a and b are chosen in a way to minimize the squared sum of the residuals. the ability to fit or explain is measured by the r-square.
- A seaward retreat of a shoreline, generally expressed as a seaward
Proportion, английский
- A quantity of something, especially as compared to the whole a high proportion of cancers can be treated by surgery. the proportion of outpatients to inpatients is increasing. ‘…the target cells for adult myeloid leukaemia are located in the bone marrow, and there is now evidence that a substantial proportion of childhood leukaemias also arise in the bone marrow’ [british medical journal]
- Доля; отношение; пропорция prospective (cohort) study
- Доля; отношение; пропорция
- In naval architecture, the length, breadth, and height of a vessel, having a due consideration to her rate, and the object she is intended for.
- Пропорция; состав (смеси и т.п.); пропорциональная часть || составлять, дозировать
Categories, английский
- A feature that allows the user to apply custom or default markers to items (e.g. outlook messages or onenote content) in order to categorize information for easy retrieval and sorting.
- A list of categories that developers select from to make their app more discoverable.
- A list of different types of xbox music application contents, such as games, music+video, lifestyle.
- The section of the store that shows subgroups of apps and games, grouped by intended use or function.
- Flexible and rigid. borescope, ultraviolet: borescope with the ability to transmit ultraviolet radiation to the distal end while transmitting visible light to the eyepiece.
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Feature vector, английский
A feature vector is one method used to represent a textual or visual object in a form suitable for numeric processing and machine learning. as an example, a block of text (e.g., an article in a newspaper) could be collapsed into a (sorted) list of words. this list could be compared against a standard glossary of, say, 50,000, words and represented by a 50,000-element binary vector with ones (1s) for the words that occurred in the document and zeros (0s) for those that did not. this vector could then be used to classify the document or in further analysis. this type of representation, which ignores the word order in the document, is sometimes called a bag of words representation. a feature vector is also a general term used in machine learning and related areas to describe a vector or list containing the values of attributes for a case. it typically has a fixed length (dimension). it can also be referred to as a record or a tuple. see also: attribute, machine learning, wise wire.
Gray codes, английский
A form of binary encoding (patented by frank gray in 1953) which can be used to encode the integers [0, . . ., 2n-1] as a binary string of length n. they have the special property that adjacent integers differ by only one bit, sometimes referred to as an "adjacency property." they have been used in a genetic algorithm to encode numbers, as a small mutation in a gray code encoding tends to yield a small change in the value.
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