Title
Gamma Mixture Models For Outlier Removal
Abstract
In this paper, we introduce a probabilistic outlier model which is seamlessly integrated into machine learning frameworks (e.g., boosting and deep neural network) to accurately identify outliers in training samples. With two Gamma mixtures, the proposed model can estimate the distribution of inlier and outlier samples respectively and generates their posterior probabilities. The iterative removal method gradually reduces the outliers and boosts the performance of classifier by correcting the bias and variance caused by outliers. Experimental results on INRIA pedestrian dataset and MNIST handwritten-digit dataset demonstrate that the proposed outlier removal method achieves superior detection performance.
Year
Venue
Keywords
2018
2018 25TH IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP)
Gamma Mixture Model, Outlier Removal, Expectation Maximization, Boosting Decision Tree, Deep Neural Network
Field
DocType
ISSN
MNIST database,Pattern recognition,Computer science,Outlier,Posterior probability,Artificial intelligence,Boosting (machine learning),Probabilistic logic,Classifier (linguistics),Artificial neural network,Mixture model
Conference
1522-4880
Citations 
PageRank 
References 
0
0.34
0
Authors
3
Name
Order
Citations
PageRank
Xin Wu1163.89
Ling Cai232.42
Rongrong Ji33616189.98