Search Results for author: Sambuddha Ghosal

Found 8 papers, 0 papers with code

Uncertainty Quantified Deep Learning for Predicting Dice Coefficient of Digital Histopathology Image Segmentation

no code implementations31 Aug 2021 Sambuddha Ghosal, Audrey Xie, Pratik Shah

Results from this study suggest that linear models can learn coefficients of uncertainty quantified deep learning and correlations ((Spearman's correlation (p<0. 05)) to predict Dice scores of specific regions of medical images.

Image Segmentation Medical Image Segmentation +1

Interpretable and synergistic deep learning for visual explanation and statistical estimations of segmentation of disease features from medical images

no code implementations11 Nov 2020 Sambuddha Ghosal, Pratik Shah

Deep learning (DL) models for disease classification or segmentation from medical images are increasingly trained using transfer learning (TL) from unrelated natural world images.

Computed Tomography (CT) Image Segmentation +4

Deep Generative Models Strike Back! Improving Understanding and Evaluation in Light of Unmet Expectations for OoD Data

no code implementations12 Nov 2019 John Just, Sambuddha Ghosal

Finally, a look to the previous generation of generative models in the form of probabilistic principal component analysis is inspired, and revisited for the same data-sets and shown to work really well for discriminating anomalies based on likelihood in a fully unsupervised fashion compared with pixelCNN++, GLOW, and real NVP with less complexity and faster training.

Anomaly Detection Dimensionality Reduction

Encoding Invariances in Deep Generative Models

no code implementations4 Jun 2019 Viraj Shah, Ameya Joshi, Sambuddha Ghosal, Balaji Pokuri, Soumik Sarkar, Baskar Ganapathysubramanian, Chinmay Hegde

Reliable training of generative adversarial networks (GANs) typically require massive datasets in order to model complicated distributions.

Interpretable Deep Learning applied to Plant Stress Phenotyping

no code implementations24 Oct 2017 Sambuddha Ghosal, David Blystone, Asheesh K. Singh, Baskar Ganapathysubramanian, Arti Singh, Soumik Sarkar

Availability of an explainable deep learning model that can be applied to practical real world scenarios and in turn, can consistently, rapidly and accurately identify specific and minute traits in applicable fields of biological sciences, is scarce.

Deep Learning General Classification +1

An unsupervised spatiotemporal graphical modeling approach to anomaly detection in distributed CPS

no code implementations24 Dec 2015 Chao Liu, Sambuddha Ghosal, Zhanhong Jiang, Soumik Sarkar

Modern distributed cyber-physical systems (CPSs) encounter a large variety of physical faults and cyber anomalies and in many cases, they are vulnerable to catastrophic fault propagation scenarios due to strong connectivity among the sub-systems.

Anomaly Detection

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