Neighborhood Structure Assisted Non-negative Matrix Factorization and its Application in Unsupervised Point Anomaly Detection.
Imtiaz AhmedXia Ben HuMithun P. AcharyaYu DingPublished in: CoRR (2020)
Keyphrases
- anomaly detection
- negative matrix factorization
- neighborhood structure
- unsupervised learning
- matrix factorization
- document clustering
- principal component analysis
- sparse representation
- graph model
- semi supervised
- collaborative filtering
- data sets
- feature vectors
- high dimensional
- data analysis
- decision trees
- learning algorithm