no code implementations • 27 Jul 2023 • Yuanfang Ren, Yanjun Li, Tyler J. Loftus, Jeremy Balch, Kenneth L. Abbott, Shounak Datta, Matthew M. Ruppert, Ziyuan Guan, Benjamin Shickel, Parisa Rashidi, Tezcan Ozrazgat-Baslanti, Azra Bihorac
With clustering analysis for vital signs within six hours of admission, patient phenotypes with distinct pathophysiological signatures and outcomes may support early clinical decisions.
1 code implementation • 7 Apr 2022 • Shounak Datta, Sankha Subhra Mullick, Anish Chakrabarty, Swagatam Das
We then use a novel strategy to artificially form new tasks for training by interpolating between the available tasks and their respective interval bounds.
no code implementations • 23 Oct 2020 • Serge Assaad, Shuxi Zeng, Chenyang Tao, Shounak Datta, Nikhil Mehta, Ricardo Henao, Fan Li, Lawrence Carin
A key to causal inference with observational data is achieving balance in predictive features associated with each treatment type.
1 code implementation • 15 Oct 2020 • Shuxi Zeng, Serge Assaad, Chenyang Tao, Shounak Datta, Lawrence Carin, Fan Li
Causal inference, or counterfactual prediction, is central to decision making in healthcare, policy and social sciences.
no code implementations • 15 Oct 2020 • Shounak Datta, Eduardo B. Mariottoni, David Dov, Alessandro A. Jammal, Lawrence Carin, Felipe A. Medeiros
Due to the SAP test's innate difficulty and its high test-retest variability, we propose the RetiNerveNet, a deep convolutional recursive neural network for obtaining estimates of the SAP visual field.
no code implementations • 26 Aug 2020 • Sankha Subhra Mullick, Shounak Datta, Sourish Gunesh Dhekane, Swagatam Das
Indices quantifying the performance of classifiers under class-imbalance, often suffer from distortions depending on the constitution of the test set or the class-specific classification accuracy, creating difficulties in assessing the merit of the classifier.
no code implementations • 27 Apr 2020 • Yanjun Li, Yuanfang Ren, Tyler J. Loftus, Shounak Datta, M. Ruppert, Ziyuan Guan, Dapeng Wu, Parisa Rashidi, Tezcan Ozrazgat-Baslanti, Azra Bihorac
M Interpretation: In a heterogeneous cohort of hospitalized patients, a deep interpolation network extracted representations from vital sign data measured within six hours of hospital admission.
no code implementations • 24 Apr 2020 • Arka Ghosh, Sankha Subhra Mullick, Shounak Datta, Swagatam Das, Rammohan Mallipeddi, Asit Kr. Das
Constructing adversarial perturbations for deep neural networks is an important direction of research.
1 code implementation • ICCV 2019 • Sankha Subhra Mullick, Shounak Datta, Swagatam Das
We propose a three-player adversarial game between a convex generator, a multi-class classifier network, and a real/fake discriminator to perform oversampling in deep learning systems.
no code implementations • 9 Aug 2018 • Avisek Gupta, Shounak Datta, Swagatam Das
This paper presents Entropy $c$-Means (ECM), a method of fuzzy clustering that simultaneously optimizes two contradictory objective functions, resulting in the creation of fuzzy clusters with different levels of fuzziness.
1 code implementation • 22 Dec 2017 • Shounak Datta, Sayak Nag, Sankha Subhra Mullick, Swagatam Das
The diversification (generating slightly varying separating discriminators) of Support Vector Machines (SVMs) for boosting has proven to be a challenge due to the strong learning nature of SVMs.
1 code implementation • 31 Aug 2017 • Shounak Datta, Sayak Nag, Swagatam Das
We then demonstrate how this insight can be used to attain a good compromise between the rare and abundant classes without having to resort to cost set tuning, which has long been the norm for imbalanced classification.
no code implementations • 22 Apr 2016 • Shounak Datta, Supritam Bhattacharjee, Swagatam Das
Many real-world clustering problems are plagued by incomplete data characterized by missing or absent features for some or all of the data instances.