| dc.contributor.advisor | Dr. Ashraful Islam | en_US |
| dc.contributor.advisor | Rashedur Rahman | en_US |
| dc.contributor.author | Sakib, Abu Musa | |
| dc.contributor.author | Mukta, Sumyia Afnan | |
| dc.date.accessioned | 2026-09-20T08:35:06Z | |
| dc.date.available | 2026-09-20T08:35:06Z | |
| dc.date.issued | 2026-04 | |
| dc.identifier.other | ID 2321673 | |
| dc.identifier.other | ID 2321672 | |
| dc.identifier.uri | https://ar.iub.edu.bd/handle/11348/1598 | |
| dc.description | This thesis is submitted in partial fulfillment of the requirements for the degree of Master of Science (M. SC..) in Computer Science, 2025. | |
| dc.description.abstract | This study presents DrishtiXAI, an explainable Bengali image captioning system designed to support visually impaired users through culturally relevant image descriptions and text-to-speech technology. A dataset of 18,539 Bengali image-caption pairs was developed, and two deep learning approaches were evaluated. The InceptionV3-GRU model with Bahdanau attention outperformed the EfficientNet-B4-Transformer model in reliability, achieving a mean BLEU score of 0.5157 on a separate dataset. Attention maps provided visual explanations of the image regions used to generate captions, while a mobile application enabled accessible use. A user study of 20 participants demonstrated positive ratings for clarity and supportiveness, highlighting the potential of transparent and culturally appropriate AI for Bengali-speaking communities. | en_US |
| dc.format.extent | 96 pages | |
| dc.language.iso | en | en_US |
| dc.publisher | Independent University, Bangladesh (IUB) | en_US |
| dc.rights | Theses submitted to Independent University, Bangladesh, are protected by copyright. They may be accessed for academic and research purposes; however, reproduction, distribution, or use of the material in any form requires prior written permission from the University. | |
| dc.subject | Explainable AI (XAI) | en_US |
| dc.subject | Bengali Image Captioning | en_US |
| dc.subject | Bahdanau Attention Mechanism | en_US |
| dc.subject | Assistive Technology for the Visually Impaired | en_US |
| dc.subject | Deep Learning and Natural Language Processing | en_US |
| dc.title | DrishtiXAI: a Bengali image captioning system with explainable AI | en_US |
| dc.type | Thesis | en_US |
| dc.contributor.department | Department of Computer Science and Engineering | |
