1 code implementation • 16 Dec 2022 • Eoin Delaney, Arjun Pakrashi, Derek Greene, Mark T. Keane
Counterfactual explanations have emerged as a popular solution for the eXplainable AI (XAI) problem of elucidating the predictions of black-box deep-learning systems due to their psychological validity, flexibility across problem domains and proposed legal compliance.
no code implementations • 25 Sep 2021 • Payel Sadhukhan, Arjun Pakrashi, Brian Mac Namee
In this work, we propose Random Walk-steered Majority Undersampling (RWMaU), which undersamples the majority points of a class imbalanced dataset, in order to balance the classes.
no code implementations • 25 Sep 2021 • Payel Sadhukhan, Arjun Pakrashi, Sarbani Palit, Brian Mac Namee
The training dataset is augmented with the set of label-specific synthetic minority points, and classifiers are trained to predict the relevance of each label independently.
no code implementations • 29 Jan 2021 • Mehran H. Z. Bazargani, Arjun Pakrashi, Brian Mac Namee
The Radial Basis Function Data Descriptor (RBFDD) network is an effective solution for anomaly detection, however, it is a shallow model that does not deal effectively with raw data representations.
1 code implementation • 3 Sep 2020 • John Mitros, Arjun Pakrashi, Brian Mac Namee
Deep neural networks have been successful in diverse discriminative classification tasks, although, they are poorly calibrated often assigning high probability to misclassified predictions.
no code implementations • 23 Apr 2019 • Arjun Pakrashi, Brian Mac Namee
The Kalman Filter-based Heuristic Ensemble (KFHE) is an ensemble method that exploits the sensor fusion properties of the Kalman filter to combine several classifier models, and that has been shown to be very effective.
no code implementations • 23 Apr 2019 • Arjun Pakrashi, Brian Mac Namee
Multi-label classification is an approach which allows a datapoint to be labelled with more than one class at the same time.
no code implementations • 25 Jan 2019 • Arjun Pakrashi, Bidyut. B. Chaudhuri
Clustering algorithms have regained momentum with recent popularity of data mining and knowledge discovery approaches.
1 code implementation • 6 Oct 2018 • Arjun Pakrashi, Elham Alghamdi, Brian Mac Namee, Derek Greene
Meetup. com is a global online platform which facilitates the organisation of meetups in different parts of the world.
Social and Information Networks Computers and Society
no code implementations • 30 Jul 2018 • Arjun Pakrashi, Brian Mac Namee
This paper introduces a new perspective on multi-class ensemble classification that considers training an ensemble as a state estimation problem.