Shanghai Jiao Tong University · CGS Doctoral Fellow

Sam Chakraborty, MSc.

Physical AI Researcher · LLMs, CFD & Complex Networks

AI4Science LLMs & AI Agents Computational Physics Complex Networks
PhD Scholar, Dept. of Chemical Engineering — SJTU Research Assistant (Gen AI) — University College Cork Visiting Lecturer — Techno India University

Welcome

Welcome to my personal academic website. I am an AI researcher working at Shanghai Jiao Tong University specializing in AI4Science, Computational Fluid Dynamics, PDE solvers, Large Language Models, Network Science, and Agentic Systems. My work spans Language Models, Computational Intelligence, Decision Making, Cognition, Optimization, Game Research, and Physics-Informed ML.

I'm open to research and technical collaborations in Mainland Europe, China, Singapore and the US. If you work on AI in Science, Physics, Social Dynamics, or innovative deep learning/optimization, let's connect and push research boundaries together.

Research Interests

AI agents & LLMs

Large Language Models, RAG, Multi-Agent Systems

Computational Physics

CFD, PDE Solvers, Physics-Informed ML

Complex Networks

Social Networks, Scientometrics, Cognitive Networks

AI4Science

Scientific Computing, Simulations, Materials Design

Reviewer

  • Ocean Engineering
  • ACM Transactions on Computing for Healthcare
  • ICECCME — The 6th International Conference on Electrical, Computer, Communications and Mechatronics Engineering, Bali, Indonesia
  • ICECET — 5th International Conference on Electrical, Computer and Energy Technologies, Rome, Italy

My Favorites

  • Future: AGE OF BEYOND: If Humans & AI United — This is humanity's future we should all strive for.
  • Video: BBC - The Fantastic Mr Feynman — A fascinating BBC feature on Richard Feynman (my all time mentor from the great beyond!), highlighting his genius, curiosity, and unique way of seeing the world.
  • Sci-fi show: Star Wars — An epic space opera set in a galaxy far, far away, spanning a rich universe of heroes, villains, and the eternal struggle between light and darkness.
  • Sci-fi novel: Isaac Asimov — Foundation series — A sweeping saga of the decline and rebirth of a galactic empire, following a mathematician who uses psychohistory to guide humanity across millennia of history.

Publications

My research contributions spanning AI, Network Science, Healthcare, and Computational Physics

View on Google Scholar
4 Journals
3 Conferences
2 Under Review
2 Preprints
11 Total

Journal Articles

Journal PIBERT publication thumbnail
Comeback or dropout: study of discontinued researchers at early career stage
Gayen, A., Chakraborty, S., Mitra, S. and Jana, A.
Scientometrics · pp. 1-36 · 2025
Journal PIBERT publication thumbnail
Influence of Multi-dimensional Social Capital on Structure of Scientific Collaboration Networks: MDSC@ SciCoNet
Gayen, A., Chakraborty, S., Chakraborty, N. and Jana, A.
SN Computer Science · Vol. 6(5), p. 394 · 2025
Journal Trust@Health publication thumbnail
Trust@ Health: A Trust-Based Multilayered Network for Scalable Healthcare Service Management
Gayen, A., Chakraborty, S., Chakraborty, J. and Jana, A.
IEEE Access · 2025
Journal Wind energy forecasting publication thumbnail
Enhancing wind energy forecasting in India: A site-specific comparative analysis of machine learning models and Weibull statistics using long-term data
Yadav, H.K., Chakraborty, S., Gupta, M.N., Bhattacharjee, A., Yadav, S., Sanyal, A.P., Sarkar, J. and Sarkar, A.
Sustainable Energy Technologies and Assessments · Vol. 84, art. 104735 · 2025

Under Review

Pending PIBERT publication thumbnail
PIBERT: A Physics-Informed Bi-directional Hybrid Spectral Transformer for Multiscale CFD Surrogate Modeling
Chakraborty, S., Ming, P., and Chen, X.
Journal of Computational Physics · 2025
Pending
Machine learning assisted inverse design of low resistivity In–Ga–Sn–Zn oxide sputtering targets
Cheng, N., Chakraborty, S., Liu, X., Zhang, W., Liang, X., Zhao, H., Bi, W., Zhang, M., Sun, B., He, J. and Liu, Y.
Journal of Alloys and Compounds · 2025

Conference Proceedings

Conf.
Ml-HCN: A Novel Healthcare System Architecture Based on Multi-layered Network Approach
Gayen, A., Chakraborty, S., Chakraborty, J. and Jana, A.
ICCCNT 2024 — IEEE · 2024
Conf.
How Can I Grow!!: Analysis of Co-authorship Network of Early Career Stage Researchers
Gayen, A., Chakraborty, S., Chakraborty, N. and Jana, A.
Int. Conf. Smart Computing & Communication — Springer · pp. 341-351 · 2024
Conf.
BioGraphVAE: A Bio-inspired Autoencoder for Structured Data Reconstruction
Chakraborty, S., Chakraborty, D., Mondal, K., Das, S., Jana, A. and Gayen, A.
AIIoT-25 · 2025

Preprints

Preprint
MedicaNet: Trust based recommender system to recommend doctors with the help of symptoms
Gayen, A. and Chakraborty, S.
Computational Intelligence and Neuroscience · Vol. 2020(8826557) · 2020
Preprint
LLMPR: A Novel LLM-Driven Transfer Learning based Petition Ranking Model
Gayen, A., Chakraborty, S., Sen, M., Paul, S. and Jana, A.
arXiv:2505.21689 · 2025

GitHub Projects

Explore my work in AI, Machine Learning, Computational Physics, and Web Development

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Education

My academic journey across three continents

Current

Doctor of Philosophy

LLMs & Computational Fluid Dynamics

Shanghai Jiao Tong University

Shanghai, China 2025 - 2029

Research focus on CFD, DEM, Simulations, LLMs, Physics Informed Machine Learning, and Computational Chemistry.

Honours

Master of Science

Data Science and Analytics

University College Cork

Cork, Ireland 2023 - 2024

Thesis: "Genchron Network Analytics tool for Medieval Literature Studies" (Honours). Modules included Deep Learning, Machine Learning, Statistical Modelling, Python for Data Science.

Bachelor of Technology

Computer Science & Engineering

Techno India University

Kolkata, India 2018 - 2022

Thesis: "Scoring SM Posts using Behavioural Inputs using Social Networks". Grade: 8.27/10

Experience

My professional journey across research, industry, and academia

Current Positions

CGS Doctoral Fellow (PhD)

Shanghai Jiao Tong University

Dept. of Chemical Engineering and Chemistry

Computer Scientist RA (Gen AI)

University College Cork

Dept. of Computer Science

Visiting Lecturer

Techno India University

Dept. of Computer Science and Engineering

Researcher

CAINS Labs

India

Industry Experience

Research

Research Assistant - AI Engineer (LLMs & GenAI)

University College Cork

Cork, Ireland 2024 - Present
  • Led 3 cross-domain R&D projects leveraging Large Language Models, improving scalability by 40%
  • Developed a visual analytics platform for 20+ datasets, boosting insight extraction by 50%
  • Designed LLM-based chatbot for real-time path accuracy using PostGIS, up by 15%
  • Integrated GCP map plugins for geospatial features, up by 30%
  • Evaluated chatbot responses with BLEU, ROUGE (35% improvement)
  • Implemented RAG-based approaches for better context awareness (25% improvement)
Industry

Fullstack Software Engineer - Cloud

Virtusa

Mumbai, India 2021 - 2023
  • Developed 2 SaaS-based cloud apps in ServiceNow environment, reducing manual processing by 40%
  • Led team of 8 in project development and system integration, cutting deployment time by 25%
  • Integrated payment gateways, MFA, and AWS/GCP services, raising security compliance by 50%

Academic Experience

Academic

Teaching Assistant

University College Cork - Dept. of Computer Science

Cork, Ireland 2023 - 2024
  • Conducted Lectures on Programming with Python I
  • Topics: Introduction to Python, Control Structures, Functions, Data Structures, Error Handling, OOP, APIs & Web Scraping, Data Processing, Visualization
  • Data Visualization & Machine Learning fundamentals
  • Storytelling with Data, Big Data Visualization, Dashboard Design
Academic

Google Developer Club (GDG) Mentor

Techno India University

Kolkata, India 2020 - 2022
  • Lectures on Machine Learning & Deep Learning with GCP
  • Data prep with BigQuery ML, model training, deployment on GCP
  • GCP Fundamentals, Compute & Storage, IAM, Cloud Functions, BigQuery, DevOps

Blog

Research insights, anecdotes, and reflections on my academic journey