1.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- S.N. Bose National Centre for Basic SciencesIN60 papers
- Saha Institute of Nuclear PhysicsIN55 papers
- Indian Statistical Institute, Bangalore CentreIN51 papers
- Jadavpur UniversityIN41 papers
- University of CalcuttaIN39 papers
- Indian Institute of Science BangaloreIN35 papers
- Institute of Mathematical SciencesIN34 papers
- Indian Institute of Technology MadrasIN28 papers
- Bose InstituteIN27 papers
- Centre National de la Recherche ScientifiqueFR26 papers
- Indian Statistical Institute, Delhi CentreIN20 papers
- Tata Institute of Fundamental ResearchIN20 papers
93 papers · 1 filter
Bayesian Testing Of Granger Causality In Functional Time Series
Rituparna Sen, Anandamayee Majumdar, Shubhangi Sikaria
We develop a multivariate functional autoregressive model (MFAR), which captures the cross-correlation among multiple functional time series and thus improves forecast accuracy. We…
Enhanced current rectification in graphene nanoribbons: Effects of geometries and orientations of nanopores
Joydeep Majhi, Sudin Ganguly, Santanu K. Maiti
We discuss the possibility of getting rectification operation in graphene nanoribbon (GNR). For a system to be a rectifier, it must be physically asymmetric and we induce the asymm…
Quantum Symmetry on Potts Model
Debashish Goswami, Sk Asfaq Hossain
We formulate the notion of quantum group symmetry of the Hamiltonian corresponding to Potts model and compute it for few simple models. Our examples illustrate how a slight change…
QU-BraTS: MICCAI BraTS 2020 Challenge on Quantifying Uncertainty in Brain Tumor Segmentation - Analysis of Ranking Scores and Benchmarking Results
Raghav Mehta, Angelos Filos, Ujjwal Baid +89
Deep learning (DL) models have provided state-of-the-art performance in various medical imaging benchmarking challenges, including the Brain Tumor Segmentation (BraTS) challenges.…
Sign patterns that allow algebraic positivity
Sunil Das
A real square matrix is algebraically positive if there exists a real polynomial such that is a positive matrix. In this paper, we give a sufficient condition for a sign…
U-Statistics for Left Truncated and Right Censored Data
Sudheesh, K. K., Anjana +3
The analysis left truncated and right censored data is very common in survival and reliability analysis. In lifetime studies patients often subject to left truncation in addition t…
Deep Neural Networks for Automatic Grain-matrix Segmentation in Plane and Cross-polarized Sandstone Photomicrographs
Rajdeep Das, Ajoy Mondal, Tapan Chakraborty +1
Grain segmentation of sandstone that is partitioning the grain from its surrounding matrix/cement in the thin section is the primary step for computer-aided mineral identification…
Event and Activity Recognition in Video Surveillance for Cyber-Physical Systems
Swarnabja Bhaumik, Prithwish Jana, Partha Pratim Mohanta
This chapter aims to aid the development of Cyber-Physical Systems (CPS) in automated understanding of events and activities in various applications of video-surveillance. These ev…
Effect of mobility in the rock-paper-scissor dynamics with high mortality
Sahil Islam, Argha Mondal, Mauro Mobilia +2
In the evolutionary dynamics of a rock-paper-scissor (RPS) model, the effect of natural death plays a major role in determining the fate of the system. Coexistence, being an unstab…
MIO : Mutual Information Optimization using Self-Supervised Binary Contrastive Learning
Siladittya Manna, Umapada Pal, Saumik Bhattacharya
Self-supervised contrastive learning frameworks have progressed rapidly over the last few years. In this paper, we propose a novel loss function for contrastive learning. We model…
Near universal values of social inequality indices in self-organized critical models
S. S. Manna, Soumyajyoti Biswas, Bikas K. Chakrabarti
We have studied few social inequality measures associated with the sub-critical dynamical features (measured in terms of the avalanche size distributions) of four self-organized cr…
Stability analysis of intralayer synchronization in time-varying multilayer networks with generic coupling functions
Md Sayeed Anwar, Sarbendu Rakshit, Dibakar Ghosh +1
The stability analysis of synchronization patterns on generalized network structures is of immense importance nowadays. In this article, we scrutinize the stability of intralayer s…
Evolutionary Dynamics of Social Inequality and Coincidence of Gini and Kolkata indices under Unrestricted Competition
Suchismita Banerjee, Soumyajyoti Biswas, Bikas K. Chakrabarti +8
Social inequalities are ubiquitous and here we show that the values of the Gini () and Kolkata () indices, two generic inequality indices, approach each other (starting from…
Surface Code Design for Asymmetric Error Channels
Utkarsh Azad, Aleksandra Lipińska, Shilpa Mahato +3
Surface codes are quantum error correcting codes normally defined on 2D arrays of qubits. In this paper, we introduce a surface code design based on the fact that the severity of b…
Weyl-type bounds for twisted short character sums
Aritra Ghosh
Let f be a Hecke-Maass or holomorphic primitive cusp form for with Fourier coefficients . Let be a primitive Dirichlet character of modulus p, wher…
Uniform Concentration Bounds toward a Unified Framework for Robust Clustering
Debolina Paul, Saptarshi Chakraborty, Swagatam Das +1
Recent advances in center-based clustering continue to improve upon the drawbacks of Lloyd's celebrated -means algorithm over years after its introduction. Various methods…
Role of assortativity in predicting burst synchronization using echo state network
Mousumi Roy, Abhishek Senapati, Swarup Poria +2
In this study, we use a reservoir computing based echo state network (ESN) to predict the collective burst synchronization of neurons. Specifically, we investigate the ability of E…
Right-Most Position of a Last Progeny Modified Time Inhomogeneous Branching Random Walk
Antar Bandyopadhyay, Partha Pratim Ghosh
In this work, we consider a modification of time \emph{inhomogeneous} branching random walk, where the driving increment distribution changes over time macroscopically. Following B…
COVID-19 Face Mask Recognition with Advanced Face Cut Algorithm for Human Safety Measures
Arkaprabha Basu, Md Firoj Ali
In the last year, the outbreak of COVID-19 has deployed computer vision and machine learning algorithms in various fields to enhance human life interactions. COVID-19 is a highly c…
Statistical Regeneration Guarantees of the Wasserstein Autoencoder with Latent Space Consistency
Anish Chakrabarty, Swagatam Das
The introduction of Variational Autoencoders (VAE) has been marked as a breakthrough in the history of representation learning models. Besides having several accolades of its own,…
Coupled Helmholtz Equations : Chirped Solitary Waves
Naresh Saha, Barnana Roy, Avinash Khare
We investigate the existence and stability properties of the chirped gray and anti-dark solitary waves within the framework of coupled cubic nonlinear Helmholtz equation in the pre…
Complexity of Traveling Tournament Problem with Trip Length More Than Three
Diptendu Chatterjee
The Traveling Tournament Problem is a sports-scheduling problem where the goal is to minimize the total travel distance of teams playing a double round-robin tournament. The constr…
Variation of Gini and Kolkata Indices with Saving Propensity in the Kinetic Exchange Model of Wealth Distribution: An Analytical Study
Bijin Joseph, Bikas K. Chakrabarti
We study analytically the change in the wealth () distribution against saving propensity in a closed economy, using the Kinetic theory. We estimate the Gini () and…
Seshadri constants on some blow-ups of projective spaces
Rupam Karmakar, Praveen Kumar Roy
Let denote the blow-up of along general lines and general points. In this paper, we focus on -very ample line bundles on and inves…