Search Results for author: Girmaw Abebe Tadesse

Found 16 papers, 0 papers with code

Efficient Representation of the Activation Space in Deep Neural Networks

no code implementations13 Dec 2023 Tanya Akumu, Celia Cintas, Girmaw Abebe Tadesse, Adebayo Oshingbesan, Skyler Speakman, Edward McFowland III

The representations of the activation space of deep neural networks (DNNs) are widely utilized for tasks like natural language processing, anomaly detection and speech recognition.

Anomaly Detection speech-recognition +1

Domain-agnostic and Multi-level Evaluation of Generative Models

no code implementations20 Jan 2023 Girmaw Abebe Tadesse, Jannis Born, Celia Cintas, William Ogallo, Dmitry Zubarev, Matteo Manica, Komminist Weldemariam

To this end, we propose a framework for Multi-level Performance Evaluation of Generative mOdels (MPEGO), which could be employed across different domains.

BON: An extended public domain dataset for human activity recognition

no code implementations12 Sep 2022 Girmaw Abebe Tadesse, Oliver Bent, Komminist Weldemariam, Md. Abrar Istiak, Taufiq Hasan, Andrea Cavallaro

Body-worn first-person vision (FPV) camera enables to extract a rich source of information on the environment from the subject's viewpoint.

Human Activity Recognition

Model-free feature selection to facilitate automatic discovery of divergent subgroups in tabular data

no code implementations8 Mar 2022 Girmaw Abebe Tadesse, William Ogallo, Celia Cintas, Skyler Speakman

Existing feature selection techniques for tabular data often involve fitting a particular model in order to select important features.

AutoML feature selection

Towards Creativity Characterization of Generative Models via Group-based Subset Scanning

no code implementations1 Mar 2022 Celia Cintas, Payel Das, Brian Quanz, Girmaw Abebe Tadesse, Skyler Speakman, Pin-Yu Chen

We propose group-based subset scanning to identify, quantify, and characterize creative processes by detecting a subset of anomalous node-activations in the hidden layers of the generative models.

Post-discovery Analysis of Anomalous Subsets

no code implementations23 Nov 2021 Isaiah Onando Mulang', William Ogallo, Girmaw Abebe Tadesse, Aisha Walcott-Bryant

Analyzing the behaviour of a population in response to disease and interventions is critical to unearth variability in healthcare as well as understand sub-populations that require specialized attention, but also to assist in designing future interventions.

Automated Supervised Feature Selection for Differentiated Patterns of Care

no code implementations5 Nov 2021 Catherine Wanjiru, William Ogallo, Girmaw Abebe Tadesse, Charles Wachira, Isaiah Onando Mulang', Aisha Walcott-Bryant

The pipeline included three types of feature selection techniques; Filters, Wrappers and Embedded methods to select the top K features.

feature selection

Pattern Detection in the Activation Space for Identifying Synthesized Content

no code implementations26 May 2021 Celia Cintas, Skyler Speakman, Girmaw Abebe Tadesse, Victor Akinwande, Edward McFowland III, Komminist Weldemariam

Generative Adversarial Networks (GANs) have recently achieved unprecedented success in photo-realistic image synthesis from low-dimensional random noise.

Image Generation Misinformation

Out-of-Distribution Detection in Dermatology using Input Perturbation and Subset Scanning

no code implementations24 May 2021 Hannah Kim, Girmaw Abebe Tadesse, Celia Cintas, Skyler Speakman, Kush Varshney

Current skin disease models could make incorrect inferences for test samples from different hardware devices and clinical settings or unknown disease samples, which are out-of-distribution (OOD) from the training samples.

Fairness Out-of-Distribution Detection +2

DeepMI: Deep Multi-lead ECG Fusion for Identifying Myocardial Infarction and its Occurrence-time

no code implementations31 Mar 2021 Girmaw Abebe Tadesse, Hamza Javed, Yong liu, Jin Liu, Jiyan Chen, Komminist Weldemariam, Tingting Zhu

We propose an end-to-end deep learning approach, DeepMI, to classify MI from normal cases as well as identifying the time-occurrence of MI (defined as acute, recent and old), using a collection of fusion strategies on 12 ECG leads at data-, feature-, and decision-level.

Transfer Learning

Prediction of neonatal mortality in Sub-Saharan African countries using data-level linkage of multiple surveys

no code implementations25 Nov 2020 Girmaw Abebe Tadesse, Celia Cintas, Skyler Speakman, Komminist Weldemariam

Existing datasets available to address crucial problems, such as child mortality and family planning discontinuation in developing countries, are not ample for data-driven approaches.

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