Nilanjan Sinhababu

PhD Research Scholar, Centre for Computational and Data Sciences, IIT Kharagpur

Advancing Information Retrieval and Large Language Models through In-Context Learning and Generative AI

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About

I am a PhD Research Scholar at the Centre for Computational and Data Sciences, IIT Kharagpur, specializing in Information Retrieval, Large Language Models, and In-Context Learning. My research focuses on advancing AI and ML methodologies, particularly in the domains of few-shot learning for retrieval systems and generative AI applications.

Currently working with the AI4ICPS Technology Innovation Hub, I have gained recognition for developing innovative AI-based evaluation frameworks and contributing to the advancement of information retrieval systems. My work spans across medical information systems, educational evaluation, and crowd computing applications.

With a strong foundation in both theoretical research and practical applications, I have published in top-tier conferences including EMNLP 2024 and have accumulated over 331 citations for my research contributions. My academic journey is driven by the goal of making AI systems more efficient, interpretable, and accessible across various domains.

331+

Citations

15+

Publications

5+

Research Areas

Expertise & Skills

Information Retrieval Large Language Models Few-shot Learning Natural Language Processing Machine Learning Deep Learning Python Programming Academic Research Data Science AI/ML Research Academic Writing Research Methodology

Research Interests

Information Retrieval and Ranking Models

Developing advanced ranking models and retrieval systems using machine learning and deep learning approaches

Large Language Models and In-Context Learning

Exploring few-shot learning techniques and prompt engineering for improving LLM performance in various tasks

Few-shot Learning for Retrieval Systems

Advancing non-parametric retrieval models through pairwise ranking prompting and few-shot techniques

Medical Information Systems

Developing AI-driven systems for medical information retrieval and question-answering interactions

AI-based Educational Evaluation

Creating automated evaluation frameworks for educational assessment and feedback systems

Publications

2024

LEq: Large Language Models Generate Expanded Queries for Searching

Nilanjan Sinhababu, R Khatun

2024 15th International Conference on Computing Communication and Networking

2021

Medical Information Retrieval and Interpretation: A Question-Answer based Interaction Model

Nilanjan Sinhababu, Rahul Saxena, Monalisa Sarma, Debasis Samanta

arXiv preprint arXiv:2101.09662

2 citations
2021

Hidden features identification for designing an efficient research article recommendation system

A Chaudhuri, N Sinhababu, M Sarma, D Samanta

International Journal on Digital Libraries 22(2), 233-249

18 citations
2019

Power consumption analysis, measurement, management, and issues: A state-of-the-art review of smartphone battery and energy usage

PKD Pramanik, N Sinhababu, B Mukherjee, S Padmanaban, A Maity, ...

IEEE Access 7, 182113-182172

200 citations

Featured Projects

fewshot_prp

A few-shot implementation of Pairwise Ranking Prompting (PRP) method with a All-Pair re-ranking mechanism. EMNLP 2024 accepted paper implementation.

Python PyTorch Information Retrieval Large Language Models

LLM_Prompting_Finetuning

Research projects focused on prompt engineering and fine-tuning techniques for large language models.

Python Transformers LLM Prompt Engineering

DL-Applications-in-Computer-Vision-Hands-On

Deep learning applications in computer vision with hands-on implementations and image processing techniques.

Python TensorFlow Computer Vision Deep Learning

unsupervised_learning

Implementation and exploration of various unsupervised learning algorithms and techniques.

Python Machine Learning Unsupervised Learning

Awards & Recognition

2025

CII AI Awards 2025 Recognition

Recognition for research and development of an AI-based Evaluation Framework under the AI4ICPS Hub at IIT Kharagpur

Confederation of Indian Industry (CII)
2025

ACM India Outstanding Applied Innovation in Computing Award

Applied for recognition in applied innovation in computing research

ACM India

Contact

Location

Kharagpur, West Bengal, India

Institution

Centre for Computational and Data Sciences
IIT Kharagpur

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