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.

169,051 papers · 148 categories

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3 results for “bifidelity”

When Bifidelity Meets CoKriging: An Efficient Physics-Informed Multifidelity Methodstat.ML

A new method combines multifidelity techniques to improve model accuracy with limited data.

problem Improving model accuracy with sparse accurate observations and stochastic simulation models.

method Combines bifidelity and CoKriging methods to estimate empirical statistics and construct a Gaussian process.

result Preserves linear physical constraints up to an error bound, leading to accurate model construction.

multifidelity physics-informed Gaussian process bifidelity CoKriging

2018-12-07abs ↗pdf ↗

Bifidelity Karhunen-Loève Expansion Surrogate with Active Learning for Random Fieldsstat.ML

Improved surrogate model for field-valued QoIs using LF and HF simulations.

problem Accurate and efficient modeling of field-valued quantities under uncertain inputs.

method Bifidelity Karhunen-Loève expansion with active learning.

result Consistent improvements in predictive accuracy and sample efficiency.

Karhunen-Loève expansion active learning field-valued QoIs uncertain inputs cross-validation

2025-11-05abs ↗pdf ↗

Bifidelity data-assisted neural networks in nonintrusive reduced-order modelingstat.ML

New method uses low-fidelity data to improve neural network predictions.

problem Improving predictive capability of neural networks for parameterized problems.

method Combines POD and shallow neural network; incorporates low-fidelity data features.

result Improves predictive capability of neural network predictions.

reduced-order modeling nonintrusive neural networks POD low-fidelity data

2019-02-01abs ↗pdf ↗