PhD Student · Missouri University of Science & Technology

Utshab Kumar Ghosh

Machine Learning Engineer & Researcher

I build and study retrieval systems and LLM-powered ranking pipelines. I have first-author papers accepted at ACM SIGIR 2026 and ACM ICTIR 2026, a Top 10 finish at TREC ToT 2025, three Kaggle Expert titles, and five years of industry machine learning experience.

Portrait of Utshab Kumar Ghosh
SIGIR 2026 · Paper Accepted ICTIR 2026 · Paper Accepted TREC ToT 2025 · Top 10 Kaggle Expert (3x) Swedish Institute Scholar 2025 ML & Data Science Mentor

Research & Publications

Peer-reviewed work in information retrieval, biometrics and bioinformatics.

2026

Reproduction Beyond Benchmarks: ConstBERT and ColBERT-v2 Across Backends and Query Distributions

Utshab Kumar Ghosh, Ashish David, Shubham Chatterjee
ACM SIGIR 2026 · top IR venue (A*) · Information Retrieval

2026

Entity Labels Are Not Entity Signals: A Framework for Observable Relevance in Document Re-Ranking

Utshab Kumar Ghosh, Shubham Chatterjee
ACM ICTIR 2026 (ACM SIGIR-sponsored) · Information Retrieval

2025

Single Turn LLM Reformulation Powered Multi-Stage Hybrid Re-Ranking for Tip-of-the-Tongue Known-Item Retrieval

Debayan Mukhopadhyay, Utshab Kumar Ghosh, Shubham Chatterjee
TREC ToT 2025 · Information Retrieval

2022

Accurate Gait Recognition with Inertial Sensors Using a New FCN-BiLSTM Architecture

Nahian Rifaat, Utshab Kumar Ghosh, Abu Sayeed
Computers and Electrical Engineering (Q1 journal, Elsevier) · Biometrics

2021

Most Dominant Metabolomic Biomarkers Identification for Lung Cancer

Utshab Kumar Ghosh, Fuad Al Abir, Nahian Rifaat, S.M. Shovan, Abu Sayeed, Md. Al Mehedi Hasan
Informatics in Medicine Unlocked (Q2 journal, Elsevier) · Bioinformatics

2020-22

Industry research at MyMedicalHub

Human Gait Analysis (Oct 2020 to Mar 2022) and Golf Video & Image Analysis (Mar to Sep 2022). Details are confidential under company policy.

ML & Data Science Competitions

Rankings link to the official leaderboards where they are public.

Featured Projects

Selected work from my GitHub. Every card links to the code or a live demo.

Biometrics

Gait Recognition

FCN-BiLSTM model for inertial-sensor gait recognition. This is the code behind the Q1 journal paper.

Background

Where I have worked and studied.

Work Experience

Aug 2025 - Present

Graduate Research Assistant

Research in computer science focused on machine learning and large language models.

Missouri University of Science & Technology
Dec 2022 - Jun 2025

Machine Learning Engineer

Machine learning and full-stack development team.

Nascenia Ltd.
Feb 2023 - Present

Mentor, Machine Learning & Data Science

Teaching ML and data science at Code Studio Academy.

Code Studio Academy
Mar 2019 - May 2023

Co-Founder

Software company building web and mobile applications.

Code Studio
Oct 2020 - Sep 2022

AI Research Assistant

Musculoskeletal care and case-management solutions for health and wellness industries.

MyMedicalHub
Dec 2017 - Jan 2019

Smartbook Writer

Wrote digital mathematics books.

10 Minute School

Education

Aug 2025 - Present

Ph.D. in Computer Science

Missouri University of Science & Technology
Jan 2017 - Oct 2022

B.Sc. in Computer Science & Engineering

GPA 3.22 / 4.0

Rajshahi University of Engineering & Technology
Apr 2014 - Apr 2016

Higher Secondary Certificate

GPA 5.0 / 5.0

Saint Joseph Higher Secondary School
Jan 2009 - Mar 2014

Secondary School Certificate

GPA 5.0 / 5.0

Ideal School & College

Skills & Technologies

The tools I work with, grouped by what I use them for.

Machine Learning & IR

  • PyTorch
  • TensorFlow
  • Hugging Face Transformers
  • LangChain
  • ChromaDB
  • Information Retrieval

Languages

  • Python
  • C
  • JavaScript
  • PHP

Web

  • React
  • Django
  • Flask
  • Tailwind CSS
  • Sass

DevOps & Tools

  • Linux
  • Git
  • Docker
  • Apache

Databases

  • MySQL
  • MongoDB
  • Redis
  • Firebase

Creative & Office

  • PowerPoint
  • Excel
  • Illustrator
  • Premiere Pro

GitHub Contribution Activity (@utshabkg)

Contribution chart for GitHub user utshabkg over the last year

See the full activity on GitHub.

Accomplishments

Awards, recognitions and professional certifications.

Swedish Institute Scholarship

Global Professionals Programme · 2025

Awarded to 300 recipients worldwide for leadership and professional excellence.

Kaggle Expert (3x)

Competitions, Datasets & Notebooks

Triple Expert recognition for contributions across multiple Kaggle categories.

National Gold Medalist

High School Programming Contest

First place in the National High School Programming Contest, Bangladesh.

Featured Certifications

Testimonials

What colleagues and collaborators say.

During Utshab’s tenure as a smartbook writer at 10 Minute School, he was frequently assigned responsibilities for writing and reviewing smartbooks. He was a quick learner, and there were numerous occasions where he proved his skill at both independent and collaborative work. His proactive and self-motivated nature made him a valuable asset to our team. He is a well-spoken and intellectual individual.
Ayman Sadiq
Utshab is a polite yet cheerful person with a passion for music and computer science. He is hard-working, keeping his programming fundamentals strong through competitive programming while also working on machine learning, Django, PyGame and more. As co-founder of the software startup Code Studio, he has proven his leadership and development skills. His skill set can be an asset to any company that makes the best use of him.
Tahsin Masrur
Tahsin Masrur
Software Engineer, Google
I have known Utshab for a long time. In those years, I have seen him excel not only at the core elements of data science and machine learning, but also at skills and tasks that extend well beyond the scope of his role. His sense of responsibility and his mastery of both can be critical to any team’s success. I have only optimistic predictions for his career trajectory.
Mahir Ashef
Mahir Ashef
Co-Founder, Qubitech Solutions
Utshab is a hard-working person, enthusiastic about learning new things, with profound knowledge of machine learning and data science, which he shares with aspiring data scientists through his ML Bootcamp program. He works with me at Code Studio, where his leadership stands out. He is a good mentor, a creative person and, above all, a helpful friend.
Soykot Hosen
Soykot Hosen
Founder & CEO, Code Studio

Get in Touch

Ask me anything about machine learning, research, programming or tech. I am always open to collaborating on ML research, projects and competitions. And outside of work I am a musician, so let’s jam!

Phone

+1 573 537 3000
+880 1701 067875

Location

Missouri, USA