Author

Arjun Narayanan

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#machine learning Preprint Sep 2026

Playing to Par: Reinforcement Learning for Provably Optimal Quadrilateral Block Decompositions

This work trains a reinforcement learning agent to build decompositions that reach a lower bound on the total vertex irregularity of any all-quadrilateral mesh of a given domain purely based on its topology and corner angles, and overcome this exploration barrier via behaviour cloning on optimal meshes that are trivial...

Arjun Narayanan, Per-Olof Persson · 0 citations

Preprint Aug 2026

Text-Guided Diffusion-Based Adversarial Attacks on Chest X-Ray Images

A text-guided diffusion-based adversarial framework that optimizes learnable text conditioning while keeping the diffusion generator and target classifier frozen, enabling adversarial generation through a learned image prior rather than direct pixel manipulation is proposed.

Basudha Pal, Arjun Narayanan, Neha Ajith et al. · 0 citations