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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

Using a three-phase protocol that separates diagram-only, diagram-plus-description, and description-only inputs, it is shown across five open-weight and closed-source VLMs that description-only performance is statistically indistinguishable from diagram-plus-description performance, establishing structured descriptions...

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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