2 Publications
8 Projects
2+ Years Industry
10k+ App Downloads

About

I am a graduate researcher and teaching assistant at Miami University, pursuing an M.S. in Computer Science (expected May 2026). My research focuses on accessibility technology, generative AI, machine learning, and sensor fusion for autonomous systems. Before graduate school, I spent two years as a software engineer at Therap (BD) Ltd. and Samsung R&D Institute Bangladesh, building large-scale backend systems and embedded communication modules.

Research Interests
Accessibility Technology & Assistive AI Generative AI Camera–mmWave Sensor Fusion Remote Sensing & GIS Autonomous Navigation & Smart Cities Human Activity Recognition & IoT
Awards & Honors
Contact
Office McVey Data Science Bldg 364, Miami University, Oxford, OH 45056
Hours Mon – Fri, 9:00 AM – 5:00 PM

Publications

OmniAcc
OmniAcc: Personalized Accessibility Assistant Using Generative AI
S. Karki, E. Han, N. Mahmud, S. Bhunia, J. Femiani, V. Raychoudhury
Workshop on AI for Urban Planning • AAAI 2025
Wheelchair Routing
A Smart and Barrier-Aware Navigation System for Wheelchair Routing
ASM Mobarak Hossain*, Nadim Mahmud*, Ethan Han, Neil Advani, Sahil Bhunia, John Femiari, Vijay Raychoudhury  (* co-first)
Int. Workshop on Smart Living with IoT • IEEE MASS 2025

Projects

MyPath
MyPath — Wheelchair-Accessible Routing
Backend for a NIDILRR-funded navigation system computing barrier-aware routes for power wheelchair users using OpenStreetMap data.
Crosswalk Detection
Zero-Shot Crosswalk Detection
GPT-4o powered crosswalk detection achieving 97.5% accuracy in a zero-shot setting. Contributed to OmniAcc (AAAI 2025).
Road Skeletonization
Road Skeletonization
Deep learning pipeline for extracting road centerlines from satellite imagery using a U-Net architecture.
Activity Recognition
Human Activity Recognition
Classified human activities from IMU sensor data collected from 15 users, comparing ML and CNN-based deep learning models.
Urban Sprawl
Urban Sprawl Detection — Dhaka
Analyzed urban expansion using multispectral remote sensing indices (NDBI, SAVI, MNDWI, IBI) and QGIS geospatial analysis.
Online Store
Multivendor E-Commerce Platform
Full-stack multivendor e-commerce with product management, order processing, and multi-seller support. Containerized with Docker.
RU Contacts
RU Contacts — Android App
University directory app with 10,000+ downloads on Google Play Store. Built with Kotlin and MVVM architecture.
Restaurant Management
Restaurant Management System
Web-based system for order tracking, table management, and menu administration for restaurant operations.

Experience

Click any card for full details

Graduate Teaching Assistant & Researcher
Aug 2024 – May 2026
Miami University — Oxford, OH, USA
  • Research in LLM & RAG, wheelchair accessibility, camera–mmWave sensor fusion, and autonomous driving
  • Teaching assistant for undergraduate computer science courses
  • Supported by Graduate Assistantship (full tuition) and Summer Research Fellowship 2025
Software Engineer
Oct 2022 – Jul 2024
Therap (BD) Ltd. — Dhaka, Bangladesh
  • Built push notification framework serving millions of users
  • Achieved 80% efficiency improvement in Excel-based reporting solutions
  • Led legacy codebase refactoring for improved maintainability
JavaSpring HibernateOracle SQL
Engineer I
Jul 2022 – Sep 2022
Samsung R&D Institute Bangladesh — Dhaka, Bangladesh
  • Developed communication modules for smart ring devices
AndroidRTOS

Education

M.S. in Computer Science
Aug 2024 – May 2026
Miami University — Oxford, OH, USA
  • Graduate Assistantship (full tuition scholarship)
  • Summer Research Fellowship 2025
  • Faculty Learning Communities — AI & Student Project Development
B.Sc. in Computer Science & Engineering
Jan 2017 – May 2022
University of Rajshahi — Rajshahi, Bangladesh
  • Highest CGPA in class (2016–2017 session)
  • Dean’s List — all four years
  • 6th rank in ITEE FE Exam (IPA Japan)
  • ACM ICPC member
🎓
HSC — Science
2013 – 2016
Sreepur Ramnagar Degree College — Rajshahi, Bangladesh

Extra Curricular

🤝
Faculty Learning Communities — AI & Student Project Development
2025 – 2026
Miami University — Oxford, OH, USA

Selected as a member of Miami University's Faculty Learning Communities (FLC) cohort focused on Artificial Intelligence and student-driven project development. The FLC brings together faculty and graduate students to collaboratively explore pedagogical approaches to AI integration in coursework and to mentor undergraduate students through research and project work.

💻
ACM ICPC — Competitive Programming Community
2017 – 2022
University of Rajshahi — Rajshahi, Bangladesh

Active member of the ACM International Collegiate Programming Contest (ICPC) community at the University of Rajshahi. Participated in programming contests involving algorithmic problem solving, data structures, and competitive coding under time constraints. Engaged with peers to practice and prepare for regional and national level contests.