聚类算法 Resources

Showing items tagged with "聚类算法"

Application Context: This algorithm implements k-means image segmentation and clustering technology. Key Technology: A clustering technique that segments images into 3 clusters using MATLAB tools, featuring centroid initialization and iterative optimization for pixel classification.

MATLAB 221 views Tagged

This project provides source code and examples for four clustering algorithms, aiming to develop a standardized and extensible toolkit for clustering tasks. The implementation includes: 1. Clustering algorithms: K-means, K-medoids, FCMclust, GKclust, and GGclust 2. Cluster visualization: 2D plotting capabilities for displaying clustering results 3. Validation metrics: Comprehensive evaluation mechanisms calculating Partition Coefficient (PC), Classification Entropy (CE), Partition Index (SC), Separation Index (S), Xie and Beni's Index (XB), Dunn's Index (DI), and Alternative Dunn Index (DII)

MATLAB 246 views Tagged

Implementation of the relatively new Dominant-Set clustering algorithm, including both core clustering code and test scripts. This graph theory-based approach offers significantly lower computational complexity compared to Normalized Cut while automatically determining optimal cluster numbers.

MATLAB 197 views Tagged

While traditional genetic algorithms exhibit significant individual diversity during early iterations, the classic roulette wheel selection mechanism causes offspring production to correlate directly with parental fitness values. This often leads to premature convergence as superior individuals dominate the population prematurely. During later stages, fitness values tend to converge, diminishing the reproductive advantages of elite individuals and stalling evolutionary progress. The algorithm incorporates fitness scaling where temperature-controlled annealing maintains balanced selection pressure during high-temperature phases (early iterations), while intensified scaling at lower temperatures amplifies fitness differences to accentuate elite advantages. This hybrid approach leverages complementary strengths of simulated annealing and genetic algorithms to overcome premature convergence, with customized genetic encoding and fitness functions specifically designed for clustering problems to ensure efficient global convergence.

MATLAB 214 views Tagged

This MATLAB code implements the k-means clustering algorithm with complete functionality including main function and sample data. The program performs binary classification (k=2 clusters) and is ready to run immediately without additional setup. The implementation includes core k-means operations such as centroid initialization, distance calculation, cluster assignment, and centroid updating through iterative optimization.

MATLAB 221 views Tagged