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APPARATUS FOR RECOGNIZING FEATURE OF USER, METHOD FOR ESTABLISHING BASIS MATRIX BASED ON ORTHOGONAL NON-NEGATIVE MATRIX FACTORIZATION AND METHOD FOR ESTABLISHING BASIS MATRIX BASED ON ORTHOGONAL SEMI-SUPERVISED NON-NEGATIVE MATRIX FACTORIZATION
APPARATUS FOR RECOGNIZING FEATURE OF USER, METHOD FOR ESTABLISHING BASIS MATRIX BASED ON ORTHOGONAL NON-NEGATIVE MATRIX FACTORIZATION AND METHOD FOR ESTABLISHING BASIS MATRIX BASED ON ORTHOGONAL SEMI-SUPERVISED NON-NEGATIVE MATRIX FACTORIZATION
Disclosed are a multi sensor and level information based user behavior recognition apparatus, an ONMF-based basis matrix generation method, and an OSSNMF-based basis matrix generation method. The user behavior recognition apparatus according to an aspect comprises: a feature vector extraction part for multiplying a sensor data matrix for sensor data of a frequency domain acquired from two or more sensors by a transposed matrix of an orthogonalized basis matrix to extract an ONMF-based feature vector; and a multi class classification part for classifying the extracted ONMF-based feature vector as one among two or more user behavior types.
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