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Muhammad Umer

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Continuous-Utility Direct Preference Optimization

It is proved that learning with K strategies yields a Theta(K log K) improvement in sample complexity over binary preferences and that DPO converges to the entropy-regularized utility-maximizing policy.

M. Mohsin, Muhammad Umer, Ahsan Bilal et al. · 0 citations
#artificial intelligence Preprint Oct 2026

Monte Carlo Estimation for KV Cache Eviction

This work casts fixed-budget future-aware eviction as distributional estimation over plausible model-conditional query trajectories and introduces LORE-KV (Lookahead Output-perturbation with Reliability-weighted Ensembles for Key-Value caches), a training-free method that samples short autoregressive continuations from...

Ahsan Bilal, Muhammad Ahmed Mohsin, Muhammad Umer et al. · 1 citation
Preprint Aug 2026

Refining Over Resampling: Test-Time Self-Correction for LLM Reasoning

Results show that test-time compute can be more effective when used to refine sampled trajectories rather than only to sample more candidates or rely on verifier-guided selection.

Ahsan Bilal, Muhammad Ahmed Mohsin, Muhammad Umer et al. · 0 citations

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