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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.

169,341 papers · 148 categories

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20406080 · Jun 202619922001200920182026
48 results for G-computation formula

Bayesian nonparametric method estimates individualized treatment-response curves from observational data.

problem Estimating individualized treatment-response curves from observational time series data.
method Developed a Bayesian nonparametric method using the G-computation formula.
result BNP method provides more accurate estimates of treatment responses than alternative approaches.

G-Net uses deep learning for complex counterfactual outcome prediction.

problem Estimating counterfactual outcomes under dynamic treatment strategies.
method G-Net is a sequential deep learning framework for G-computation.
result G-Net can handle complex temporal data and provide accurate treatment effects.

Prognostic scores improve logistic regression analysis in RCTs with binary outcomes.

problem Non-collapsibility in logistic regression analysis of RCTs with binary endpoints.
method Prognostic score adjustment using AI predictions to address non-collapsibility.
result Prognostic score adjustment increases power or reduces sample size for estimating conditional odds ratios.

G-computation improves clinical trial power with machine learning.

problem Balancing prognostic factors in randomized trials to prevent near-confounders.
method G-computation with penalized models (Lasso, Elasticnet) and algorithm-based methods (neural network, SVM, super learner).
result G-computation with Elasticnet and splines reduces variance and increases power in RCTs.

Estimates causal effects from patient trajectories using DeepACE model.

problem Estimating causal effects from observational data in medical practice.
method DeepACE model using iterative G-computation formula and sequential targeting procedure.
result DeepACE achieves state-of-the-art performance in estimating time-varying ACEs.

Proposes an efficient algorithm for identifying important features in binary classification.

problem Understanding explainability of deep neural networks in binary classification.
method Variable-importance framework combined with lazy training.
result Achieves well-controlled error rates with minimal assumptions.

This paper introduces an efficient method for optimizing deep learning hyperparameters.

problem The high dependency of deep learning algorithms on hyper-parameters.
method Orthogonal Array Tuning Method (OATM) for deep learning hyper-parameter tuning.
result The proposed OATM method significantly saves tuning time compared to state-of-the-art methods.

A novel bandit problem with delayed arms, showing optimal strategies and lower bounds.

problem Optimizing reward in a stochastic multi-armed bandit setting with delayed arms.
method Mapping to PINWHEEL scheduling problem, simple greedy algorithm, UCB based algorithm, lower bounds.
result Simple greedy algorithm is asymptotically (11/e)(1-1/e) optimal and UCB based algorithm has clogT+o(logT)c \log T + o(\log T) cumulative regret.

WU-UCT parallelizes MCTS with linear speedup and limited performance loss.

problem Challenges in parallelizing Monte Carlo Tree Search (MCTS) due to its sequential nature.
method Introduces unobserved samples to track incomplete simulations and modify UCT tree policy.
result Achieves linear speedup and only limited performance loss with increasing parallel workers.

Unified framework estimates desirability of outcome ranking for benefit-risk evaluation.

problem Estimating desirability of outcome ranking in randomized and observational studies.
method Unified covariate-adjusted causal inference framework, estimating conditional ordinal distributions through sequential risk-set hazards, and deriving efficient influence function (EIF).
result CVTMLE-SL showed strongest performance across various settings.

A new FFT-based method for fast rigid alignment of 2D closed curves.

problem Rigid alignment of 2D closed curves with application to shape analysis.
method FFT-based algorithm for optimal rigid alignment of closed curves with O(N log N) complexity.
result Order of magnitude speed-up in curve alignment compared to previous methods.

End-to-end CAD system for thyroid nodule classification using multimodal data and expert guidance.

problem Improving accuracy in thyroid nodule classification for clinicians.
method Knowledge-driven DenseNet framework using multimodal ultrasound data and expert cues.
result The proposed system achieves relevant performances in thyroid nodule classification.

Bayesian model for cost-effectiveness analysis with subgroup discovery.

problem Statistical challenges in cost-effectiveness analysis, especially with non-random treatment assignment and censored data.
method Developed a nonparametric Bayesian model using Dirichlet and Gamma processes to estimate cost-survival distributions and identify cost-effectiveness subgroups.
result Identified and estimated policy-relevant causal CEA estimands using a Bayesian nonparametric g-computation procedure.

The study evaluates and tests kk-NN models in various applications.

problem The relation between parameters and accuracy of kk-NN models is not well understood.
method Developed a randomized algorithm to test the kk-NN property with a complexity of O(nk2/ε2)O(\sqrt{n} k^2 / ε^2).
result The algorithm can detect kk-NN models with bad accuracy in significantly less time than building the model.

We use flip points to explain and audit deep learning models, revealing decision boundaries and improving model performance.

problem Lack of interpretability in deep learning models hinders their use in important applications.
method Flip points are used to analyze decision boundaries of deep learning models with continuous output scores.
result Flip points reveal the least changes in input that would alter a model's classification, enabling better understanding and improvement of model behavior.

Paper proves a fixed point formula and applies it to a new proof of Harish-Chandra's character formula.

problem Proving a fixed point formula for equivariant indices of elliptic differential operators.
method Fixed point formula for proper actions by connected semisimple Lie groups on manifolds.
result New proof of Harish-Chandra's character formula for discrete series representations.

Unified formula for surfaces in Euclidean or Lorentzian 3-space.

problem Describe surfaces in Euclidean or Lorentzian 3-space.
method Unified Kenmotsu-type formula for surfaces in Euclidean or Lorentzian 3-space.
result Unified single equation for Kenmotsu-type formulas in Euclidean and Lorentzian 3-space.

The study identifies types of manifolds using variational formulas and integral-differential formulas.

problem Identifying specific types of manifolds based on curvature properties.
method Established variational formulas for Ricci curvature bounds and used them to identify manifolds.
result Constant curvature, Einstein, and Ricci parallel manifolds identified with specific formulas.

The main result of the present paper is a coincidence formula for foliated manifolds. To prove this we establish Kuenneth formula, Poincare duality and intersection product in the context of tangential de Rham cohomology and homology of tangential currents. We apply the formula to get a dynamical Lefschetz formula for …

2003-06-02abs ↗pdf ↗

It has been shown that the Alvarez-Gaumeˊ\mathrm{\acute{e}}-Witten miraculous anomaly cancellation formula in type IIB superstring theory and its various generalizations can be derived from modularity of certain characteristic forms. In this paper, we show that the Green-Schwarz formula and the Schwarz-Witten formula i…

2012-05-03abs ↗pdf ↗

Proves a formula for a special invariant of 4-manifolds.

problem Calculating the Bauer-Furuta invariant for connected sums of 4-manifolds.
method Uses a finite dimensional approximation of the Seiberg-Witten monopole map to derive a formula for the families Bauer-Furuta invariant of a fibrewise connected sum.
result Derives a general connected sum formula for the families Bauer-Furuta invariant.

Formulae for non-symmetric connections derived from covariant derivatives.

problem Deriving commutation formulae for non-symmetric affine connections.
method Covariant derivatives of tensors with respect to symmetric and non-symmetric affine connections.
result Formulae for non-symmetric connections derived from covariant derivatives.