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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.

168,695 papers · 148 categories

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2 results for “quasiprobabilistic”

Quasiprobabilistic Density Ratio Estimation with a Reverse Engineered Classification Loss Functionstat.ML

We develop a new loss function for estimating quasiprobabilistic density ratios.

problem Discontinuous or non-surjective relationships between optimal classifiers and target densities.

method Introduce a convex loss function compatible with both probabilistic and quasiprobabilistic densities.

result Achieve state-of-the-art results in estimating di-Higgs production in particle physics.

density ratio estimation quasiprobability classification loss function Sliced-Wasserstein distance di-Higgs production

2025-12-22abs ↗pdf ↗

Neural Quasiprobabilistic Likelihood Ratio Estimation with Negatively Weighted Datastat.ML

Novel neural likelihood ratio estimation for negative data in particle physics.

problem Estimating likelihood ratios with negative probability densities and weights.

method Introducing a novel loss function and a new model architecture based on signed mixture models.

result Demonstrated improved estimation on a real-world example from particle physics.

likelihood ratio neural networks negative data quasiprobabilistic particle physics

2024-10-14abs ↗pdf ↗