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Fariya Afrin

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#machine learning Preprint Aug 2026

Task-Aware Spectral Pruning: A Mixture-of-Masks Framework for Efficient LLM Inference

Task-Aware Spectral Pruning (TASP), a post-training framework that calibrates module-level spectral descriptors against measured task-specific ablation effects, closes grouped-query-attention and SwiGLU dependencies during sparse-mask construction, and routes each user turn to one compiled mask that remains fixed throu...

Ibne Farabi Shihab, Fariya Afrin, Sanjeda Akter et al. · 0 citations
#machine learning Preprint Aug 2026

When Accuracy Gaps Fail to Certify: Auditing Cross-Domain Recalibration of LLM Judges

A scalar recalibration map fitted for an LLM judge on one task can fail when the task distribution changes, but the source-target accuracy gap is often treated as a proxy for that failure. We test what this gap can predict and what it can certify across thirteen judges, two generators, eight domains, and 1,176 predecla...

Fariya Afrin, Ibne Farabi Shihab · 0 citations
Preprint Aug 2026

Quality-Diversity Stress Tests for Process Reward Models:What Archive Coverage Can and Cannot Certify

This work formulate PRM stress testing as a quality-diversity search problem using MAP-Elites, retaining the most severe correctness-flipping edit in each behavior-space region while separating search coverage from exploit coverage, and characterize what such archives certify.

Ibne Farabi Shihab, Fariya Afrin · 0 citations

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