Sabbir Hossen Research

Education

Jan 2020 – Jan 2024

Bangladesh University

B.Sc. in Computer Science and Engineering
Mohammadpur, Dhaka-1207, Bangladesh

CGPA: 3.66/4.00

Thesis: A Sophisticated Feature Vectorization-Based Stacked Machine Learning Approach for Fake News Detection in Bangla and English.

Experience

Sep 2024 – Present

National Institute of Textile Engineering and Research

Research Assistant

  • Cross-Lingual Visual Reasoning in VLMs: Developing a multilingual visual reasoning benchmark and intervention-based evaluation to assess visual grounding across multilingual and code-switched settings.
  • Low-Resource LLM Adaptation: Adapting small multilingual LLMs to Bangla while measuring target-language gains and retention of multilingual capabilities across languages and tasks.
  • Small-to-Large LLM Routing: Developed a routing framework showing that confidence becomes nearly uninformative for reasoning (AUC 0.510) and allocates large-model access unevenly across languages.
  • Quantization of Small LLMs for Bangla: Benchmarked 0.5B–3B architectures across FP16, INT8, and 4-bit precision; showed that INT8 retains 97.4% of mean FP16 performance at 3B while reducing memory by 45.0%, whereas 4-bit quantization saves 67.4% with larger task-dependent degradation.
May 2023 – Jul 2024

Bangladesh University

Research Assistant

  • Multilingual Fake-News Detection: Led the development of a stacked machine-learning framework for Bangla and English fake-news detection, resulting in a first-author publication in a Q1 journal.
  • Dataset Development and NLP Modeling: Collected and curated datasets and developed Transformer-based models for machine-generated text detection and sentiment analysis, resulting in multiple publications.
  • Research Leadership and Corresponding Authorship: Conducted literature reviews, prepared manuscripts, and coordinated coauthors, reviewer responses, and revisions across multiple research papers.
  • Research Mentoring: Mentored three undergraduate research groups on medical imaging and agricultural computer vision, guiding experimental design, model evaluation, and manuscript preparation.

Academic Service

Mar 2026

Journal Reviewer

  • Journal of Plant Diseases and Protection (JPDP)
Mar 2026

Conference Reviewer

  • IEEE Ural-Siberian Conference on Biomedical Engineering, Radioelectronics and Information Technology (USBEREIT).