activity
20242026
most citedThe ALCHEmist: Automated Labeling 500x CHEaper Than LLM Data Annotators

3 citations · 4 across the 7 of their papers we have counts for

collaborators

8 papers

cs.LG2026

GRPO Training Dynamics for Small Language Models

Rajat Ghosh, Vaishnavi Bhargava, Henry Wong +2

Group Relative Policy Optimization (GRPO) has emerged as a memory-efficient reinforcement fine-tuning (RFT) technique for reasoning-intensive tasks. How- ever, GRPO training dynami…

cs.LG2026

Predictable GRPO: A Closed-Form Model of Training Dynamics

Rajat Ghosh, Datta Nimmaturi, Aryan Singhal +4

We develop a first-principles reduced-order model of these dynamics. Under a single mean-field assumption that summarizes the policy by its expected reward, we reduce the GRPO upda…

cs.SE2026

SWE-Tester: Training Open-Source LLMs for Issue Reproduction in Real-World Repositories

Aditya Bharat Soni, Rajat Ghosh, Vaishnavi Bhargava +2

Software testing is crucial for ensuring the correctness and reliability of software systems. Automated generation of issue reproduction tests from natural language issue descripti…

cs.LG2025

Go-UT-Bench: A Fine-Tuning Dataset for LLM-Based Unit Test Generation in Go

Yashshi Pipalani, Hritik Raj, Rajat Ghosh +2

Training data imbalance poses a major challenge for code LLMs. Most available data heavily over represents raw opensource code while underrepresenting broader software engineering…

cs.LG2025

BAR Conjecture: the Feasibility of Inference Budget-Constrained LLM Services with Authenticity and Reasoning

Jinan Zhou, Rajat Ghosh, Vaishnavi Bhargava +2

When designing LLM services, practitioners care about three key properties: inference-time budget, factual authenticity, and reasoning capacity. However, our analysis shows that no…

cs.LG2025

Predictive Scaling Laws for Efficient GRPO Training of Large Reasoning Models

Datta Nimmaturi, Vaishnavi Bhargava, Rajat Ghosh +2

Fine-tuning large language models (LLMs) for reasoning tasks using reinforcement learning methods like Group Relative Policy Optimization (GRPO) is computationally expensive. To ad…

cs.SE2024★ 1 cited

CPP-UT-Bench: Can LLMs Write Complex Unit Tests in C++?

Vaishnavi Bhargava, Rajat Ghosh, Debojyoti Dutta

We introduce CPP-UT-Bench, a benchmark dataset to measure C++ unit test generation capability of a large language model (LLM). CPP-UT-Bench aims to reflect a broad and diverse set…

cs.CL2024★ 3 cited

The ALCHEmist: Automated Labeling 500x CHEaper Than LLM Data Annotators

Tzu-Heng Huang, Catherine Cao, Vaishnavi Bhargava +1

Large pretrained models can be used as annotators, helping replace or augment crowdworkers and enabling distilling generalist models into smaller specialist models. Unfortunately,…