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Feature vector
| Глоссарий по искусственному интеллекту |
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.
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Feature, английский
- Any irregularity or imperfection in a tree, log, board, or other wood product. feature may result from knots and other growth conditions and abnormalities, insect or fungus attack, or during timber processing.
- Признак 27
- N признак specification, structure, subcategorization acoustic ~ акустический признак: gross ~ ~ общий contextual ~ контекстуальный признак defining ~ определяющий признак distinctive ~ различительный (дифференци- альный) признак grammatical ~ грамматический признак minus ~ отрицательный признак phonological ~ фонологический признак prosodic ~ просодический признак selectional ~ признак селекции semantic ~ семантический признак specified ~ идентифицированный признак strict subcategorization ~ признак строгой субкатегоризации syntactic ~ синтаксический признак typed ~ типизированный признак vocal ~ речевой признак zero-~ нулевой признак
- A set of logically related functional requirements that provides a capability to the user and enables the satisfaction of a business objective.
- A set of software functionality designed to solve a specific problem or to provide a new functionality to the user.
- In a computing system, the functional part of windows that can be enumerated, indirectly detected, or measured, such as wi-fi support.
- In server manager, a software program or logical collection of software programs that, though not part of a role, can support the functionality of one or more roles, or enhance the functionality of an entire server, regardless of which roles are installed. for example, the failover clustering feature augments the functionality of other roles, such as file services and dhcp server, by enabling them to join server clusters for increased redundancy and improved performance.
Feature, английский
Feature (2); feed nut (2), английский
Feature -г- признак, английский
Feature activation dependency, английский
A relationship in which a feature is activated automatically when another feature is activated or a feature must be activated manually before another feature can be activated.
Feature analysis, английский
An image analysis technique that decomposes the image into easily recognized parts (horizontal, vertical, or diagonal lines, curves, etc.). the image can then be classified or recognized by comparing the feature list with those of various standards.
Feature analysis code(s), английский
Feature and attribute coding catalog, английский
Feature attribute, английский
Атрибут-характеристика feature-based modeling моделирование с использованием базовых фигур
Feature attribute coding standard, английский
Feature attribute coding system, английский
Feature card, английский
Суперпозиционная карта
Feature change map, английский
Feature code, английский
Feature codes, английский
Коды услуги
Feature connector, английский
Соединительный элемент
Feature delegation, английский
The process of granting access to feature areas. access is granted to a particular user at a particular scope. for example, user -€oepeter-€? has access to the - €oelogging-€? feature at scope -€?default web site.-€?
Feature dissatisfaction, английский
A condition where users believe that a feature does not meet the expectations set by the market, competitors, previous experiences, or promises.
Feature event receiver, английский
A server-side code routine that is called when a feature is activated, deactivated, installed, uninstalled, or upgraded on a computer, server farm, or server cluster.
Feature extraction, английский
- Извлечение признаков; выделение признаков
- Feature extraction is used in speech recognition and image processing to refer to the reduction of the input signal into a collection of broader features that can be used for further analysis. it is used more generally as term for the process of variable reduction. see also: data reduction.
- From an enhanced image, derivation of some feature values, usually parameters for distinguishing objects in the image.
- From an enhanced image, derivation of some feature values, usually parameters for distinguishing objects in the image.1 fiber optic, infrared: flexible fiber made of a material that transmits infrared energy, used for making noncontact temperature measurements when there is not a direct line of sight between the instrument and the target.3
Feature extraction environment, английский
Processing, английский
- Обработка (напр. данных); технология
- N обработка cognitive ~ когнитивная обработка language ~ когн.
- Обработка ~ of materials обработка [переработка] материалов
- A language originally designed for artists to allow them to do simple graphical design programs in a movie like paradigm.
- The preparation or packaging of fish to render it suitable for human consumption, retail sale, industrial use, or long-term storage, including but not limited to cooking, canning, smoking, salting, drying, filleting, freezing, or rendering into meal or oil, but not heading and gutting unless additional preparation is done.
- Under the gdpr, “processing” is any operation that is performed on personal data. this includes collection, recording, organisation, structuring, storage, adaptation, alteration, dissemination, erasure or destruction.
Representation, английский
- N репрезента- ция, представление knowledge ~ представление знаний internal ~ псхл. внутреннее представление mental ~ ментальная репрезентация
- A collateral statement of such facts not inserted on the policy of insurance, as may give the underwriters a just estimate of the risk of the adventure. (see warranty.)
- A representation is a set of conventions about how to describe a class of things. representation will generally consist of four parts: 1. a lexicon that determines which symbols are in it vocabulary; 2. a structural part that describes the constraints on the symbols; 3. a collection of methods or procedures that allow the symbols to be manipulated and queried; and 4. a semantics that specifies the meaning of the symbols and their relationships. re-ranking in handwriting and text recognition systems, the task of re-ranking allows the candidate interpretations developed by the recognizer to be ranked or scored according to the language model. see also: word n-gram re-ranking, word-tag model.
- If something stands in place of or is chosen to substitute for something else, the former is considered a representation of the latter. e.g., representation of constituencies in government, linguistic representation of an event (->symbol). the 66 belief that all knowledge is a representation of the properties of the real world is as unacceptable as the insistence that all descriptions or messages are about something else.
Containing, английский
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Eliza, английский
A famous program that mimics a "rogerian" psychotherapist. although it has no understanding of the conversation, it is able give the appearance of intelligence by repeating back earlier assertions that contain key words in the form of questions.
Gini index, английский
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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