activity
20242026
most citedProbing Ranking LLMs: A Mechanistic Analysis for Information Retrieval

1 citations · 1 across the 6 of their papers we have counts for

collaborators

6 papers

cs.CL2026

The Emergence of Relevance Through Axiomatic Attention Patterns During LoRA Fine-Tuning

Matthew Perlman, Atharva Nijasure, James Allan

LoRA fine-tuning is standard for adapting LLMs to reranking, but it remains unclear where in the network task-specific relevance behavior is learned and what attention-level change…

cs.CL2026

GrepSeek: Training Search Agents for Direct Corpus Interaction

Alireza Salemi, Chang Zeng, Atharva Nijasure +4

Large Language Model (LLM) search agents have shown strong promise on knowledge-intensive tasks through iterative reasoning and retrieval. Most existing systems rely on retrievers…

cs.LG2025

Hedonic Neurons: A Mechanistic Mapping of Latent Coalitions in Transformer MLPs

Tanya Chowdhury, Atharva Nijasure, Yair Zick +1

Fine-tuned Large Language Models (LLMs) encode rich task-specific features, but the form of these representations, especially within MLP layers, remains unclear. Empirical inspecti…

cs.IR2025

How Relevance Emerges: Interpreting LoRA Fine-Tuning in Reranking LLMs

Atharva Nijasure, Tanya Chowdhury, James Allan

We conduct a behavioral exploration of LoRA fine-tuned LLMs for Passage Reranking to understand how relevance signals are learned and deployed by Large Language Models. By fine-tun…

cs.IR2024★ 1 cited

Probing Ranking LLMs: A Mechanistic Analysis for Information Retrieval

Tanya Chowdhury, Atharva Nijasure, James Allan

Transformer networks, particularly those achieving performance comparable to GPT models, are well known for their robust feature extraction abilities. However, the nature of these…

cs.CL2024

Simulating Task-Oriented Dialogues with State Transition Graphs and Large Language Models

Chris Samarinas, Pracha Promthaw, Atharva Nijasure +3

This paper explores SynTOD, a new synthetic data generation approach for developing end-to-end Task-Oriented Dialogue (TOD) Systems capable of handling complex tasks such as intent…