Search Results for author: Maciej K. Hryniewicki

Found 3 papers, 3 papers with code

XGBOD: Improving Supervised Outlier Detection with Unsupervised Representation Learning

2 code implementations1 Dec 2019 Yue Zhao, Maciej K. Hryniewicki

A new semi-supervised ensemble algorithm called XGBOD (Extreme Gradient Boosting Outlier Detection) is proposed, described and demonstrated for the enhanced detection of outliers from normal observations in various practical datasets.

Anomaly Detection Outlier Detection +1

DCSO: Dynamic Combination of Detector Scores for Outlier Ensembles

1 code implementation23 Nov 2019 Yue Zhao, Maciej K. Hryniewicki

Selecting and combining the outlier scores of different base detectors used within outlier ensembles can be quite challenging in the absence of ground truth.

outlier ensembles

LSCP: Locally Selective Combination in Parallel Outlier Ensembles

1 code implementation4 Dec 2018 Yue Zhao, Zain Nasrullah, Maciej K. Hryniewicki, Zheng Li

The top-performing base detectors in this local region are selected and combined as the model's final output.

Anomaly Detection outlier ensembles

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