What is Feature Extraction

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Transformation of input data into a set of features. Features are distinctive properties of input patterns that help in differentiating between the categories of input patterns. Learn more in: Non-Manual Control Devices: Direct Brain-Computer Interaction

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Quantification of image content by means of computer algorithms, aiming to capture tissue alterations, due to underlying biological processes reflected either as morphology or as texture variations, mimicking or complementing radiologist interpretation, used in subsequent pattern analysis. Learn more in: Computer-Aided Diagnosis in Breast Imaging: Trends and Challenges

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The process to represent raw image in a reduced form to facilitate decision making such as pattern detection, classification or recognition. Learn more in: Feature Extraction Techniques: Fundamental Concepts and Survey

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A technique that reduces the amount of input data by distilling its representative descriptive attributes. Learn more in: Using Supervised Machine Learning to Explore Energy Consumption Data in Private Sector Housing

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It is a process of deriving new features from the original features in order to reduce the cost of feature measurement, increase classifier efficiency, and allow higher classification accuracy. Learn more in: Big Data Mining Based on Computational Intelligence and Fuzzy Clustering

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Transforming the input data into the set of features is called feature extraction. If the features extracted are carefully chosen, it is expected that the features set will perform the desired task using the reduced representation instead of the full size input. Learn more in: Computational Intelligence for Pathological Issues in Precision Agriculture

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Finding of representative features of a determined problem from samples with different characteristics. Learn more in: Artificial Intelligence in Computer-Aided Diagnosis

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The process by which a new set of discriminative features is obtained from those available. Classification is performed using the new set of features. Learn more in: Component Analysis in Artificial Vision

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This is a process which is used to obtain certain characteristics which are intrinsic and discriminate of a thing. Learn more in: State of the Art in Writer's Off-Line Identification

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A subject of multimedia processing which involves applying algorithms to calculate and extract some attributes for describing the media. Learn more in: Content-Based Multimedia Retrieval

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Feature extraction refers to the extraction of linguistic items from the documents to provide a representative sample of their content. Distinctive vocabulary items found in a document are assigned to the different categories by measuring the importance of those items to the document content. Learn more in: Text Mining

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Extraction of representative properties of an object for the purpose of classification. Learn more in: Computational Models for the Analysis of Modern Biological Data

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The process of extracting and building features from raw data such as the amino acid sequence of a protein. Feature functions are utilized to extract and process informative features that are useful for prediction. Learn more in: Computer Aided Knowledge Discovery in Biomedicine

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Process of reducing data by measuring certain properties or features. These features are used in a classifier. Learn more in: In Machina Systems for the Rational De Novo Peptide Design

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Feature extraction is the process of transforming the input data into a set of features which can very well represent the input data. It is a special form of dimensionality reduction. Learn more in: Soft-Computational Techniques and Spectro-Temporal Features for Telephonic Speech Recognition: An Overview and Review of Current State of the Art

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When the data is too large to be processed, the data will be transformed into a reduced representation set of features. The process of transforming the input data into the set of features is called feature extraction. Learn more in: A Novel Fuzzy Logic Classifier for Classification and Quality Measurement of Apple Fruit

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It is a process for extracting relevant information from an image. After detecting a face, some valuable information are extracted from the image which are used in next step for identifying the image. Learn more in: Application of Face Recognition Techniques in Video for Biometric Security: A Review of Basic Methods and Emerging Trends

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The process of detection and description of global or local properties of objects present in images. Learn more in: Automatic Target Recognition from Inverse Synthetic Aperture Radar Images

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A dimensionality reduction method that finds a reduced set of features that are a combination of the original ones. Learn more in: Feature Selection

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Mapping a multimedia object to features. Learn more in: Multimedia Representation

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The process of detection, isolation and extraction of various desired portions or features of a digitized image. Learn more in: Ant Colony Optimization for Use in Content Based Image Retrieval

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Method or algorithm which analyses music and computes (extracts) features from it. Learn more in: Music Information Retrieval

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A process of extracting the important or relevant characteristics that enclosed within the input data. Dimensionality or size of the input data will be subsequently reduced to preserve important information only. Learn more in: Automated Technology Integrations for Customer Satisfaction Assessment

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When the data is too large to be processed, the data will be transformed into a reduced representation set of features. The process of transforming the input data into the set of features is called feature extraction. Learn more in: Collective Event Detection by a Distributed Low-Cost Smart Camera Network

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The process of selecting a subset of variables that are used in the constructing of the feature vector. Learn more in: Interpreting Brain Waves

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A method to obtain meaningful and clear data of a signal. Learn more in: General Perspectives on Electromyography Signal Features and Classifiers Used for Control of Human Arm Prosthetics

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A method to obtain meaningful and clear data of a signal. Learn more in: General Perspectives on Electromyography Signal Features and Classifiers Used for Control of Human Arm Prosthetics

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Feature extraction transforms an input image into a set of features. Learn more in: Biometric Technologies in Healthcare Biometrics