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Author

Khanbilvardi Reza

4 papers indexed here

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#natural language process... Preprint Sep 2026

PhysicsMate: A Curriculum-Grounded Bengali Benchmark for Secondary Physics QA with Small-Model Adaptation

Bengali secondary education lacks curriculum-grounded benchmarks for STEM question-solving, and general-purpose language models struggle with the precise terminology, unit conventions, and derivations that physics problems demand. We introduce PhysicsMate, a benchmark of 1834 question-answer pairs built from the Nation...

Rashid Azraf Jahin, Saadman Sajid, Khan Raiyan Ibne Reza et al. · 0 citations
Preprint Sep 2026

ChitraMiti: Benchmarking Visual Grounding and Modality Reliance in Bengali Geometric Reasoning

Evaluation of vision-language models (VLMs) for multimodal mathematical reasoning remains limited for low-resource languages and for geometry problems that require reading a diagram and a question together. We introduce ChitraMiti-12.8k, a synthetic benchmark of 12,874 Bengali planar geometry problems paired with struc...

Khan Raiyan Ibne Reza, Sanjana Aktar Maria, Sumaiya Tabassum Nimi et al. · 0 citations
#natural language process... Preprint Sep 2026

KhatianDoc: A Human-Verified Benchmark Diagnosing Multimodal LLM Failure on Bengali Legal Land Records

Land ownership in Bangladesh is recorded in Ana-Ganda-Kora-Kranti-Til, a base-16 positional fraction system with dedicated Unicode glyphs, no mainstream font, and no coverage in any OCR pipeline or tokenizer. The handwritten records that carry these fractions, RS Khatians, are the authoritative title record for million...

Tasmiad Hasan, Arafat Zaman Ratul, Sarker Sadman Saalim et al. · 0 citations

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