activity
20202026
most citedDetermination of Optimum Warranty Region for Two Dimensional Dependent Data

1 citations · 1 across the 10 of their papers we have counts for

collaborators

11 papers

cs.CR2026

DP-FlogTinyLLM: Differentially private federated log anomaly detection using Tiny LLMs

Isaiah Thompson, Tanmay Sen, Ritwik Bhattacharya

Modern distributed systems generate massive volumes of log data that are critical for detecting anomalies and cyber threats. However, in real world settings, these logs are often d…

stat.AP2025

Bayesian Optimum Warranty Region for Right Censored Two Dimensional Dependent Data

Tanmay Sen, Rathin Das, Ritwik Bhattacharya

Warranty policies play a crucial role in balancing customer satisfaction and cost of the manufacturer. Traditional one-dimensional warranty frameworks, based solely on either age o…

stat.AP2025

Computation of Optimal Type-II Progressing Censoring Scheme Using Genetic Algorithm Approach

Ujjwal Roy, Ritwik Bhattacharya

The experimenter must perform a legitimate search in the entire set of feasible censoring schemes to identify the optimal type II progressive censoring scheme, when applied to a li…

cs.LG2025

LogTinyLLM: Tiny Large Language Models Based Contextual Log Anomaly Detection

Isaiah Thompson Ocansey, Ritwik Bhattacharya, Tanmay Sen

Log anomaly detection using traditional rule based or deep learning based methods is often challenging due to the large volume and highly complex nature of log sequence. So effecti…

stat.AP2025★ 1 cited

Determination of Optimum Warranty Region for Two Dimensional Dependent Data

Rathin Das, Tanmay Sen, Ritwik Bhattacharya +1

This paper presents a method for determining the optimal two-dimensional warranty region for age and mileage scales across all possible combinations of free replacement warranty (F…

math.ST2021

Simultaneous best linear invariant prediction of future order statistics for location-scale and scale families and associated optimality properties

Narayanaswamy Balakrishnan, Ritwik Bhattacharya

In this article, we first derive an explicit expression for the marginal best linear invariant predictor (BLIP) of an unobserved future order statistic based on a set of early obse…

stat.AP2021

On simultaneous best linear unbiased prediction of future order statistics and associated properties

Narayanaswamy Balakrishnan, Ritwik Bhattacharya

In this article, the joint best linear unbiased predictors (BLUPs) of two future unobserved order statistics, based on a set of observed order statistics, are developed explicitly.…

stat.AP2021

A MCMC-type simple probabilistic approach for determining optimal progressive censoring schemes

Ritwik Bhattacharya, Narayanaswamy Balakrishnan

We present here a simple probabilistic approach for determining an optimal progressive censoring scheme by defining a probability structure on the set of feasible solutions. Given…

stat.AP2020

D-optimal joint best linear unbiased prediction of order statistics

Narayanaswamy Balakrishnan, Ritwik Bhattacharya

In life-testing experiments, it is often of interest to predict unobserved future failure times based on observed early failure times. A point best linear unbiased predictor (BLUP)…

econ.GN2020

Determination of Bayesian optimal warranty length under Type-II unified hybrid censoring scheme

Tanmay Sen, Ritwik Bhattacharya, Biswabrata Pradhan +1

Determination of an appropriate warranty length for the lifetime of the product is an important issue to the manufacturer. In this article, optimal warranty length of the product f…

math.ST2020

Statistical inference and Bayesian optimal life-testing plans under Type-II unified hybrid censoring scheme

Tanmay Sen, Ritwik Bhattacharya, Biswabrata Pradhan +1

This article describes the inferential procedures and Bayesian optimal life-testing issues under Type-II unified hybrid censoring scheme. First, the explicit expressions of expecte…