Unsupervised Outlier Detection using Random Subspace and Subsampling Ensembles of Dirichlet Process Mixtures.
Dongwook KimJuyeon ParkHee Cheol ChungSeonghyun JeongPublished in: CoRR (2024)
Keyphrases
- outlier detection
- dirichlet process
- ensemble methods
- mixture model
- unsupervised learning
- ensemble learning
- multi task learning
- base classifiers
- density estimation
- data streams
- em algorithm
- random forest
- decision trees
- machine learning methods
- base learners
- detection algorithm
- expectation maximization
- semi supervised
- knowledge discovery
- generative model
- data mining
- probabilistic model
- supervised learning
- model selection
- pairwise
- bayesian framework
- probability density function
- language model
- semi supervised learning
- random sampling
- sliding window
- machine learning