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Bertil Braun

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Preprint Sep 2026

Identity-Consistent Analysis of Long-Shot Windsurfing Video: A Domain-Specific Offline Tracking System

Long-shot windsurfing video combines small targets, large camera pans, prolonged overlaps, and rapidly changing backgrounds. The desired output is not a generic MOT trace but a separate, stable rider-relative video for each surfer; one false identity merge can invalidate an otherwise useful result. We present an offlin...

Bertil Braun · 0 citations
#artificial intelligence Preprint Sep 2026

Engineering Efficient Self-Play Chess: Search, Replay, and Throughput Under Limited Compute

This work trains from random initialization through searched self-play on a single eight-GPU node for 2.5 days, and investigates search allocation, replay and restart-state selection, policy representation, progressive model sizing, quantized inference, and throughput engineering.

Bertil Braun · 0 citations
Preprint Jul 2026

A Graph-Based Control Interface for Traffic Signals on Heterogeneous Road Networks

We present a traffic-signal control interface in which a shared graph neural network assigns scores to individual traffic movements. Each junction converts these scores into its own variable-sized set of legal signal phases using a deterministic incidence matrix. Directed corridor nodes provide traffic context, while m...

Bertil Braun · 0 citations

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