Search Results for author: Skyler Speakman

Found 13 papers, 3 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

Weakly Supervised Detection of Hallucinations in LLM Activations

1 code implementation5 Dec 2023 Miriam Rateike, Celia Cintas, John Wamburu, Tanya Akumu, Skyler Speakman

We introduce a weakly supervised auditing technique using a subset scanning approach to detect anomalous patterns in LLM activations from pre-trained models.

Hallucination Language Modelling +1

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.

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

Towards creativity characterization of generative models via group-based subset scanning

no code implementations1 Apr 2021 Celia Cintas, Payel Das, Brian Quanz, Skyler Speakman, Victor Akinwande, Pin-Yu Chen

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

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.

Identifying Audio Adversarial Examples via Anomalous Pattern Detection

1 code implementation13 Feb 2020 Victor Akinwande, Celia Cintas, Skyler Speakman, Srihari Sridharan

Audio processing models based on deep neural networks are susceptible to adversarial attacks even when the adversarial audio waveform is 99. 9% similar to a benign sample.

Deep Mining: Detecting Anomalous Patterns in Neural Network Activations with Subset Scanning

no code implementations ICLR 2020 Skyler Speakman, Celia Cintas, Victor Akinwande, Srihari Sridharan, Edward McFowland III

This work introduces ``Subset Scanning methods from the anomalous pattern detection domain to the task of detecting anomalous inputs to neural networks.

Smooth Grad-CAM++: An Enhanced Inference Level Visualization Technique for Deep Convolutional Neural Network Models

4 code implementations3 Aug 2019 Daniel Omeiza, Skyler Speakman, Celia Cintas, Komminist Weldermariam

With the intention to create an enhanced visual explanation in terms of visual sharpness, object localization and explaining multiple occurrences of objects in a single image, we present Smooth Grad-CAM++ \footnote{Simple demo: http://35. 238. 22. 135:5000/}, a technique that combines methods from two other recent techniques---SMOOTHGRAD and Grad-CAM++.

Image Classification Object Localization

Subset Scanning Over Neural Network Activations

no code implementations19 Oct 2018 Skyler Speakman, Srihari Sridharan, Sekou Remy, Komminist Weldemariam, Edward McFowland

This is the first work to introduce "Subset Scanning" methods from the anomalous pattern detection domain to the task of detecting anomalous input of neural networks.

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