Complex Power System Status Monitoring and Evaluation Using Big Data Platform and Machine Learning Algorithms: A Review and a Case Study

Table 2

Comparisons of open-source machine learning tools/algorithms for Big Data.

Category	Algorithm	Open source/free software
		Weka	R	Shogun	Mahout	MLib	Orange	Oryx
Classification	Logistic regression
	(Complementary) naive Bayes
	Decision tree
	Neural networks
	SVM
	Random forest
	Hidden Markov models
Regression	Linear regression
	Generalized linear models
	Lasso/ridge regression
	Decision tree regression
Clustering	-means
	Fuzzy -means
	Gaussian mixture model (GMM)
	Streaming -means
Collaborative filtering	Alternating least squares (ALS)
	Matrix factorization-based
Dimensionality Reduction	Singular value decomposition (SVD)
	Principal component analysis
Optimization primitive	Stochastic gradient descent)
	Limited-memory BFGS (L-BFGS)
Feature extraction	TF-IDF
	Word2Vec
Frequent pattern mining	FP growth
	Association rules