Research
On-device research index

arXiv research

A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.

168,657 papers · 148 categories

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0111 · Jan 201519922001200920172026
5 results for Petrobras

Deep learning outperforms Black-Scholes in Brazilian Petrobras option pricing.

problem Improving option pricing accuracy for Petrobras stocks.
method Trained deep residual networks using a custom loss function with historical data.
result Deep learning achieved a 64.3% reduction in mean absolute error compared to Black-Scholes.

Model predicts stock prices using Twitter sentiment data.

problem Predicting stock prices using social media sentiment.
method Extracted 19 sentiment features from Twitter posts about Petrobras, trained XBoot models, and simulated trading.
result Simulated trading gained R$88,82 (net) over 250 days.