activity
20182025
most citedA Survey on Recent Advances in Named Entity Recognition from Deep Learning models

468 citations · 558 across the 22 of their papers we have counts for

collaborators

23 papers

cs.CL2025

A Toolbox, Not a Hammer -- Multi-TAG: Scaling Math Reasoning with Multi-Tool Aggregation

Bohan Yao, Vikas Yadav

Augmenting large language models (LLMs) with external tools is a promising avenue for developing high-performance mathematical reasoning systems. Prior tool-augmented approaches ty…

cs.LG2025

Apriel-Nemotron-15B-Thinker

Shruthan Radhakrishna, Soham Parikh, Gopal Sarda +32

While large language models (LLMs) have achieved remarkable reasoning capabilities across domains like code, math and other enterprise tasks, their significant memory and computati…

cs.CL2025

BigCharts-R1: Enhanced Chart Reasoning with Visual Reinforcement Finetuning

Ahmed Masry, Abhay Puri, Masoud Hashemi +13

Charts are essential to data analysis, transforming raw data into clear visual representations that support human decision-making. Although current vision-language models (VLMs) ha…

cs.CL2025

ConciseRL: Conciseness-Guided Reinforcement Learning for Efficient Reasoning Models

Razvan-Gabriel Dumitru, Darius Peteleaza, Vikas Yadav +1

Large language models excel at complex tasks by breaking down problems into structured reasoning steps. However, reasoning traces often extend beyond reaching a correct answer, cau…

cs.CL2025★ 1 cited

Cats Confuse Reasoning LLM: Query Agnostic Adversarial Triggers for Reasoning Models

Meghana Rajeev, Rajkumar Ramamurthy, Prapti Trivedi +5

We investigate the robustness of reasoning models trained for step-by-step problem solving by introducing query-agnostic adversarial triggers - short, irrelevant text that, when ap…

cs.CL2025

CopySpec: Accelerating LLMs with Speculative Copy-and-Paste Without Compromising Quality

Razvan-Gabriel Dumitru, Minglai Yang, Vikas Yadav +1

We introduce CopySpec, a simple yet effective technique to tackle the inefficiencies LLMs face when generating responses that closely resemble previous outputs or responses that ca…

cs.CL2025

Auto-Cypher: Improving LLMs on Cypher generation via LLM-supervised generation-verification framework

Aman Tiwari, Shiva Krishna Reddy Malay, Vikas Yadav +2

Graph databases like Neo4j are gaining popularity for handling complex, interconnected data, over traditional relational databases in modeling and querying relationships. While tra…

cs.CL2024

Change Is the Only Constant: Dynamic LLM Slicing based on Layer Redundancy

Razvan-Gabriel Dumitru, Paul-Ioan Clotan, Vikas Yadav +2

This paper introduces a novel model compression approach through dynamic layer-specific pruning in Large Language Models (LLMs), enhancing the traditional methodology established b…

cs.CL2024

Do LLMs Know When to NOT Answer? Investigating Abstention Abilities of Large Language Models

Nishanth Madhusudhan, Sathwik Tejaswi Madhusudhan, Vikas Yadav +1

Abstention Ability (AA) is a critical aspect of Large Language Model (LLM) reliability, referring to an LLM's capability to withhold responses when uncertain or lacking a definitiv…

cs.CL2024★ 1 cited

Explicit Diversity Conditions for Effective Question Answer Generation with Large Language Models

Vikas Yadav, Hyuk Joon Kwon, Vijay Srinivasan +1

Question Answer Generation (QAG) is an effective data augmentation technique to improve the accuracy of question answering systems, especially in low-resource domains. While recent…

cs.CL2024

Paraphrase and Aggregate with Large Language Models for Minimizing Intent Classification Errors

Vikas Yadav, Zheng Tang, Vijay Srinivasan

Large language models (LLM) have achieved remarkable success in natural language generation but lesser focus has been given to their applicability in decision making tasks such as…

cs.CL2024

Layer-Wise Quantization: A Pragmatic and Effective Method for Quantizing LLMs Beyond Integer Bit-Levels

Razvan-Gabriel Dumitru, Vikas Yadav, Rishabh Maheshwary +3

We present a simple meta quantization approach that quantizes different layers of a large language model (LLM) at different bit levels, and is independent of the underlying quantiz…

cs.CL2024

M2Lingual: Enhancing Multilingual, Multi-Turn Instruction Alignment in Large Language Models

Rishabh Maheshwary, Vikas Yadav, Hoang Nguyen +2

Instruction finetuning (IFT) is critical for aligning Large Language Models (LLMs) to follow instructions. While many effective IFT datasets have been introduced recently, they pre…

cs.CL2024★ 1 cited

Curry-DPO: Enhancing Alignment using Curriculum Learning & Ranked Preferences

Pulkit Pattnaik, Rishabh Maheshwary, Kelechi Ogueji +2

Direct Preference Optimization (DPO) is an effective technique that leverages pairwise preference data (usually one chosen and rejected response pair per user prompt) to align LLMs…

cs.CL2023★ 5 cited

Backdooring Instruction-Tuned Large Language Models with Virtual Prompt Injection

Jun Yan, Vikas Yadav, Shiyang Li +6

Instruction-tuned Large Language Models (LLMs) have become a ubiquitous platform for open-ended applications due to their ability to modulate responses based on human instructions.…

cs.CL2023★ 15 cited

AlpaGasus: Training A Better Alpaca with Fewer Data

Lichang Chen, Shiyang Li, Jun Yan +8

Large language models (LLMs) strengthen instruction-following capability through instruction-finetuning (IFT) on supervised instruction/response data. However, widely used IFT data…

cs.CL2021★ 6 cited

Cheap and Good? Simple and Effective Data Augmentation for Low Resource Machine Reading

Hoang Van, Vikas Yadav, Mihai Surdeanu

We propose a simple and effective strategy for data augmentation for low-resource machine reading comprehension (MRC). Our approach first pretrains the answer extraction components…

cs.CL2021★ 2 cited

Towards Robust Neural Retrieval Models with Synthetic Pre-Training

Revanth Gangi Reddy, Vikas Yadav, Md Arafat Sultan +4

Recent work has shown that commonly available machine reading comprehension (MRC) datasets can be used to train high-performance neural information retrieval (IR) systems. However,…

cs.CL2020

Unsupervised Alignment-based Iterative Evidence Retrieval for Multi-hop Question Answering

Vikas Yadav, Steven Bethard, Mihai Surdeanu

Evidence retrieval is a critical stage of question answering (QA), necessary not only to improve performance, but also to explain the decisions of the corresponding QA method. We i…

cs.CL2019★ 32 cited

Quick and (not so) Dirty: Unsupervised Selection of Justification Sentences for Multi-hop Question Answering

Vikas Yadav, Steven Bethard, Mihai Surdeanu

We propose an unsupervised strategy for the selection of justification sentences for multi-hop question answering (QA) that (a) maximizes the relevance of the selected sentences, (…

cs.CL2019★ 468 cited

A Survey on Recent Advances in Named Entity Recognition from Deep Learning models

Vikas Yadav, Steven Bethard

Named Entity Recognition (NER) is a key component in NLP systems for question answering, information retrieval, relation extraction, etc. NER systems have been studied and develope…

cs.CL2019★ 21 cited

Multi-class Hierarchical Question Classification for Multiple Choice Science Exams

Dongfang Xu, Peter Jansen, Jaycie Martin +5

Prior work has demonstrated that question classification (QC), recognizing the problem domain of a question, can help answer it more accurately. However, developing strong QC algor…

cs.IR2018★ 6 cited

Sanity Check: A Strong Alignment and Information Retrieval Baseline for Question Answering

Vikas Yadav, Rebecca Sharp, Mihai Surdeanu

While increasingly complex approaches to question answering (QA) have been proposed, the true gain of these systems, particularly with respect to their expensive training requireme…