Search Results for author: Mayank Goswami

Found 15 papers, 4 papers with code

AI pipeline for accurate retinal layer segmentation using OCT 3D images

no code implementations15 Feb 2023 Mayank Goswami

A simple-to-implement analytical equation is shown to be working for brightness manipulation with a 1% increment in mean pixel values and a 77% decrease in the number of zeros.

Optical Flow Estimation

Characterization of 3D Printers and X-Ray Computerized Tomography

no code implementations27 May 2022 Sunita Khod, Akshay Dvivedi, Mayank Goswami

It is found that ProJet MJP gives the best quality of printed samples with the least amount of surface roughness and almost near to the actual porosity value.

Noise analysis, error estimates, and Gamma Radiation Measurement for limited detector computerized tomography application

no code implementations16 May 2022 Kajal Kumari, Mayank Goswami

The analysis shows that measurement data with normal distribution inflicts the least noise in inverse recovery.

A Manifold View of Adversarial Risk

no code implementations24 Mar 2022 Wenjia Zhang, Yikai Zhang, Xiaoling Hu, Mayank Goswami, Chao Chen, Dimitris Metaxas

Assuming data lies in a manifold, we investigate two new types of adversarial risk, the normal adversarial risk due to perturbation along normal direction, and the in-manifold adversarial risk due to perturbation within the manifold.

AI and conventional methods for UCT projection data estimation

no code implementations17 Aug 2021 Ankur Kumar, Prasunika Khare, Mayank Goswami

Other performance indices show that FFT method is processing the UCT signal with best recovery.

Specificity

Deep Learning models for benign and malign Ocular Tumor Growth Estimation

no code implementations9 Jul 2021 Mayank Goswami

U-net with UVgg16 is best for malign tumor data set with treatment (having considerable variation) and U-net with Inception backbone for benign tumor data (with minor variation).

AI Algorithm for Mode Classification of PCF SPR Sensor Design

no code implementations9 Jul 2021 Prasunika Khare, Mayank Goswami

For this design algorithm has selected Support Vector Machine (SVM) as the best option with an accuracy of 96%, F1-Score is 95. 83%, and MCC of 92. 30%.

Classification Specificity

Stability of SGD: Tightness Analysis and Improved Bounds

no code implementations10 Feb 2021 Yikai Zhang, Wenjia Zhang, Sammy Bald, Vamsi Pingali, Chao Chen, Mayank Goswami

This raises the question: is the stability analysis of [18] tight for smooth functions, and if not, for what kind of loss functions and data distributions can the stability analysis be improved?

Revisiting the Stability of Stochastic Gradient Descent: A Tightness Analysis

no code implementations1 Jan 2021 Yikai Zhang, Samuel Bald, Wenjia Zhang, Vamsi Pritham Pingali, Chao Chen, Mayank Goswami

We provide empirical evidence that this condition holds for several loss functions, and provide theoretical evidence that the known tight SGD stability bounds for convex and non-convex loss functions can be circumvented by HC loss functions, thus partially explaining the generalization of deep neural networks.

Exponential degradation

Error-Bounded Correction of Noisy Labels

3 code implementations ICML 2020 Songzhu Zheng, Pengxiang Wu, Aman Goswami, Mayank Goswami, Dimitris Metaxas, Chao Chen

To be robust against label noise, many successful methods rely on the noisy classifiers (i. e., models trained on the noisy training data) to determine whether a label is trustworthy.

Image Classification

Label Cleaning with Likelihood Ratio Test

no code implementations25 Sep 2019 Songzhu Zheng, Pengxiang Wu, Aman Goswami, Mayank Goswami, Dimitris Metaxas, Chao Chen

To collect large scale annotated data, it is inevitable to introduce label noise, i. e., incorrect class labels.

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