Unsupervised Outlier Detection for Mixed-Valued Dataset Based on the Adaptive k-Nearest Neighbor Global Network.
Yu WangXuejing CaoYupeng LiPublished in: IEEE Access (2022)
Keyphrases
- k nearest neighbor
- outlier detection
- knn
- high dimensional datasets
- spatial networks
- nearest neighbor
- outlier mining
- fraud detection
- text categorization
- detect outliers
- knowledge discovery
- detection algorithm
- density ratio estimation
- density estimation
- support vector machine
- detecting outliers
- data mining
- unsupervised learning
- text classification
- distance function
- data streams
- databases
- k nearest neighbour
- database
- training set
- feature selection
- machine learning
- distance based outlier detection