B.Sc. Student · Computer Science & Engineering
Chittagong University of Engineering & Technology (CUET), Bangladesh
Computer Science and Engineering undergraduate researcher at Chittagong University of Engineering & Technology (CUET), Bangladesh. My research interests include Computer Vision, Multimodal AI, Vision-Language Models, visual reasoning, and trustworthy AI, with broader interests in intelligent systems that connect perception, reasoning, and decision-making.
Computer Vision · Multimodal AI · Vision-Language Models · Visual Reasoning · Trustworthy AI · Multimodal Learning · Reinforcement Learning
Task-Specific Multimodal Question Answering Agents via Confidence Calibration and Incremental Reasoning for QANTA 2026
Nirjhar Das, Md. Al-Mamun Provath
Efficient Multimodal Question Answering (EMM-QA) 2026 Workshop, ICML 2026 (Non-Archival). Rank #1 Overall System in the QANTA 2026 Challenge.
🔗 Workshop · arXiv
Vinland_Vector at #SMM4H-HeaRD 2026: Multilingual ADE Detection and Query-Augmented Clinical NER for English
Nirjhar Das, Rathijit Aich, Mahfuzulhoq Chowdhury
Proceedings of the 11th Social Media Mining for Health Research and Applications (SMM4H-HeaRD 2026) Workshop and Shared Tasks, ACL 2026.
🔗 DOI
HybridRAG-BN: A Retrieval-Augmented Framework with Fine-Tuned Verification for Bangla KBQA
Rathijit Aich, Nirjhar Das, Mahfuzulhoq Chowdhury
arXiv preprint, arXiv:2608.13004 [cs.CL, cs.IR], 2026. Rank #1 in the competition.
🔗 arXiv
Sentiment Analysis of Bangla E-Commerce Reviews Using Transformer
Nafis Fuad Pranta, Nirjhar Das, Shuva Dey, Rathijit Aich
IEEE QPAIN 2026.
🔗 DOI
A Hybrid Machine Learning Framework for Multiclass Customs Fraud Prediction Using SMOTE, SHAP, and RFE
Mahfuzulhoq Chowdhury, Nasrul Karib, Adid Rahman, Nirjhar Das, C Tripura, Kahakashan Ashraf
2026 International Conference on Data Science and Business Systems (ICDSBS), May 2026.
🔗 DOI
Email: nirjhardasami@gmail.com