Author

Koustava Goswami

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Preprint Sep 2026

A Glance Is All You Need: Single-Pass Fine-Grained Image Captioning with SimLoss

An image may be worth a thousand words, but most captioning models describe it in only a few. Modern vision-language models produce fluent high-level captions, yet routinely miss the attributes, counts, textures, materials, and spatial relations that make an image visually specific. Recent multi-stage systems recover s...

Suryaansh Jain, Rahasya Barkur, G. Vishal et al. · 0 citations

#artificial intelligence Preprint Sep 2026

Spurious Advantage Hidden in GRPO

SignBALANCE is proposed, whose magnitude is composition-free: it keeps the verifier sign, uses a global scale, and restores zero-mean balance via a stop-gradient per-class rescaling.

Jiamian Wang, Samyadeep Basu, Koustava Goswami et al. · 0 citations