Feature Extraction and Data Dimensionality Reduction Using MATLAB
Feature Extraction and Data Dimensionality Reduction Implementations Using MATLAB Algorithms
Explore MATLAB source code curated for "数据降维" with clean implementations, documentation, and examples.
Feature Extraction and Data Dimensionality Reduction Implementations Using MATLAB Algorithms
This project demonstrates data dimensionality reduction using Discrete Cosine Transform combined with Principal Component Analysis, applicable to pattern recognition tasks like face recognition, palmprint analysis, expression classification, and fingerprint identification. The implementation involves signal transformation followed by feature extraction techniques.
PCA-KMeans clustering workflow: implementing dimensionality reduction on Wine dataset from UCI repository followed by clustering analysis for pattern discovery
This approach employs Discrete Wavelet Transform (DWT) for feature extraction and Principal Component Analysis (PCA) for dimensionality reduction, applicable to pattern recognition systems including facial recognition, palmprint analysis, emotion detection, and fingerprint identification.
Principal Component Analysis algorithm for image feature extraction and data dimensionality reduction applications
An efficient PCA program for data dimensionality reduction, noise removal, and feature extraction. The implementation includes covariance matrix computation and eigenvalue decomposition for optimal component selection.
LPP is a highly effective tool for data dimensionality reduction, offering practical applications in various data processing scenarios. It is implemented through an algorithm that preserves local data structures while reducing computational complexity.
Orthogonal Linear Discriminant Analysis (OLDA) can be applied to data dimensionality reduction, with key algorithmic differences from traditional LDA through orthogonal projection methods that can be implemented using functions like MATLAB's 'orth' or Python's numpy.linalg.svd for basis calculation.
Foreign-developed implementation of spectral clustering algorithm with optimized computational approaches