Author

Bhavtosh Rath

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Jul 2026

How Often Should a Recommender Call an LLM? Value-Weighted Routing, Monitoring, and Seasonal Robustness

Routing decisions between a cheap heuristic and an expensive large language model (LLM) are typically framed as a difficulty problem: send the hard cases to the expensive path. We argue this framing is incomplete because difficulty and business value are distinct axes - a difficult cheap item and a difficult costly ite...

Bhavtosh Rath · arXiv.org · 0 citations

#machine learning Preprint Aug 2026

Designing for the Next Click: Bandits for Real-Time Page Layout

A scalable bandit-based system that optimizes product page layouts in real time while preserving human control over design intent, providing a scalable path toward learning-to-design the web.

Bhavtosh Rath, H. Narasimhamurthy, Bob Eisinger et al. · 0 citations