Author

André Rochet

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#artificial intelligence Preprint Sep 2026

Better Deck or Different Judge? Evaluating Agentic Harness Gains in Corporate and Investment Banking

Corporate and investment banking teams use presentations to support credit decisions and advise clients on financing and transactions. Producing these decks requires reconciling financial data, tracing sources and turning analysis into a recommendation. We retrospectively study the development of an agentic harness com...

Ludovic Gibert, Matis Despujols, André Rochet · 0 citations

#artificial intelligence Preprint Sep 2026

TW3Cast: A Frozen Router of Lightly Fine-Tuned Foundation Models for Time-Series Forecasting on GIFT-Eval, Selected Entirely on the Training Split

TW3Cast is a time-series forecasting system that reaches position 3 of 130 entries on the GIFT-Eval benchmark by mean MASE rank, as of 2026-09-14. The two entries above it belong to the leaderboard's agentic category, multi-step systems that use agents or language models to reason about, generate or select forecasts. T...

Nathan Thierry, André Rochet · 0 citations

#artificial intelligence Preprint Sep 2026

Scoring Without the Engine: Validating a Deterministic, Manipulation-Resistant Content Score for Generative Engines, End to End

How do you validate a cheap, deterministic proxy for an oracle that is expensive, rate-limited, and non-stationary? We present a protocol built on adversarial falsification gates (negative control, dose response, bounded amplification, duplication penalty, length neutrality) that define and select the proxy, fitted on...

Elisha Bajemon, André Rochet · 2 citations · ⚡1