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Abdullah Al Shafi

3 papers indexed

arxivcs.CVcs.LG2026-07-09

Closing the Null Space: Guidance-Aware Quantization for Classifier-Free Diffusion

Abdullah Al Shafi, Sumaiya Rahim Suma

Deploying classifier-free guidance (CFG) diffusion models under real-world compute budgets requires quantization, yet existing post-training quantization (PTQ) methods treat CFG models as single-branch networks, ignoring the paired conditional/unconditional structure that CFG inf…

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arxivcs.CLcs.AI2026-07-01

Towards Developing a Multimodal Chat Assistant for University Stakeholders: RAG-based Approach

Md Abu Hanif Shaikh, Abdullah Al Shafi

University stakeholders often face difficulties in accessing timely and reliable information, especially in developing countries, where there are very few intelligent support systems. Existing rule-based chatbots are unable to handle complex, domain-specific queries and are not w…

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arxivcs.CVcs.AIcs.LG2026-06-27

BTI-Net: Bidirectional Decoder-Level Task Interaction via Uncertainty-Aware Gating for Multi-Task Medical Image Analysis

Abdullah Al Shafi, Md Kawsar Mahmud Khan Zunayed, Safin Ahmmed, Sk Imran Hossain, Engelbert Mephu Nguifo

Jointly learning to segment and classify medical images demands cross-task synergy, yet encoder-sharing architectures limit decoder reconstruction to task-private representations, permanently discarding the boundary cues and semantic priors each branch could supply to the other.…

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