Mohammad Ahmadullah Khan

Mohammad Ahmadullah Khan

Undergraduate researcher in machine learning. B.Tech Computer Engineering, Jamia Millia Islamia; B.S. Data Science, IIT Madras.

Publications

Conference Presentations

FIB-4 False Negatives in MASLD: Clinical Phenotypes and an Augmented Triage Model

APASL Single Topic Conference (STC) 2026, Kumamoto, Japan. Oral presentation FP5-2, 2026

Among MASLD patients classified as low-risk by FIB-4 (NHANES 2017–2020), 16.6% had significant (F2+) fibrosis, rising to 37.7% at BMI ≥ 40 kg/m². A supplementary model, FIB-4 Plus, outperformed the NAFLD Fibrosis Score (AUROC 0.837 vs. 0.749, DeLong p = 0.019). Oral presentation; APASL International Travel Award.

Recommended citation: M. A. Khan. (2026). "FIB-4 False Negatives in MASLD: Clinical Phenotypes and an Augmented Triage Model." Oral presentation FP5-2 (Abstract No. 10340), APASL Single Topic Conference 2026, Kumamoto, Japan.
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Working Papers

Positional Bias in Nested Defeasible Reasoning: Order Sensitivity and Unfaithful Intermediate Steps in Small Language Models

Manuscript in preparation, 2026

Do language models reason over nested defeasible premises in an order-invariant way, and do their correct answers rest on correct intermediate steps?

Recommended citation: M. A. Khan. (2026). "Positional Bias in Nested Defeasible Reasoning: Order Sensitivity and Unfaithful Intermediate Steps in Small Language Models." Manuscript in preparation.

Theses

Low-Resource Indian Sign Language Video Generation via Compressed Multi-Condition Tokenisation

B.Tech Thesis, Department of Computer Engineering, Jamia Millia Islamia, 2026

B.Tech thesis (with Hammad Ali). The first text-to-skeleton-to-video baseline for Indian Sign Language on ISL-CSLTR (471 videos), using body-part finite scalar quantisation and a frozen Stable Diffusion + ControlNet + IP-Adapter renderer.

Recommended citation: H. Ali and M. A. Khan. (2026). "Low-Resource Indian Sign Language Video Generation via Compressed Multi-Condition Tokenisation." B.Tech Thesis, Jamia Millia Islamia, New Delhi. Supervisor: Mr. Shamim Ahmad.
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