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Some classical uncertainty quantification problems require the estimation of multiple expectations. Estimating all of them accurately is crucial and can have a major impact on the analysis to perform, and standard existing Monte Carlo…

统计方法学 · 统计学 2022-12-02 Julien Demange-Chryst , François Bachoc , Jérôme Morio

Functional principal component analysis has been shown to be invaluable for revealing variation modes of longitudinal outcomes, which serves as important building blocks for forecasting and model building. Decades of research have advanced…

统计方法学 · 统计学 2024-10-07 Peijun Sang , Dehan Kong , Shu Yang

Machine learning (ML) is increasingly being used to support high-stakes decisions. However, there is frequently a construct gap: a gap between the construct of interest to the decision-making task and what is captured in proxies used as…

机器学习 · 计算机科学 2024-06-04 Maria De-Arteaga , Vincent Jeanselme , Artur Dubrawski , Alexandra Chouldechova

The paper introduces a new estimation method for the standard linear regression model. The procedure is not driven by the optimisation of any objective function rather, it is a simple weighted average of slopes from observation pairs. The…

计量经济学 · 经济学 2024-02-27 Felix Chan , Laszlo Matyas

Covariate adjustment can improve precision in analyzing randomized experiments. With fully observed data, regression adjustment and propensity score weighting are asymptotically equivalent in improving efficiency over unadjusted analysis.…

统计方法学 · 统计学 2024-03-06 Anqi Zhao , Peng Ding , Fan Li

We present an interpretable companion model for any pre-trained black-box classifiers. The idea is that for any input, a user can decide to either receive a prediction from the black-box model, with high accuracy but no explanations, or…

机器学习 · 统计学 2020-02-12 Danqing Pan , Tong Wang , Satoshi Hara

Process Outcome Prediction entails predicting a discrete property of an unfinished process instance from its partial trace. High-capacity outcome predictors discovered with ensemble and deep learning methods have been shown to achieve top…

机器学习 · 计算机科学 2024-07-19 Francesco Folino , Luigi Pontieri , Pietro Sabatino

The task of modeling claim severities is addressed when data is not consistent with the classical regression assumptions. This framework is common in several lines of business within insurance and reinsurance, where catastrophic losses or…

统计理论 · 数学 2022-04-01 Martin Bladt , Jorge Yslas

We consider a multihypothesis social learning problem in which an agent has access to a set of private observations and chooses an opinion from a set of experts to incorporate into its final decision. To model individual biases, we allow…

信息论 · 计算机科学 2015-06-19 Wee Peng Tay

Estimating the covariance of asset returns, i.e., the risk model, is a key component of financial portfolio construction and evaluation. Most risk modeling approaches produce a factor model that decomposes the asset variability into two…

Although deep models achieve high predictive performance, it is difficult for humans to understand the predictions they made. Explainability is important for real-world applications to justify their reliability. Many example-based…

机器学习 · 统计学 2021-12-08 Tomoharu Iwata , Yuya Yoshikawa

We examine a new approach to modeling uncertainty based on plausibility measures, where a plausibility measure just associates with an event its plausibility, an element is some partially ordered set. This approach is easily seen to…

人工智能 · 计算机科学 2013-02-21 Nir Friedman , Joseph Y. Halpern

In models of opinion dynamics, many parameters -- either in the form of constants or in the form of functions -- play a critical role in describing, calibrating, and forecasting how opinions change with time. When examining a model of…

社会与信息网络 · 计算机科学 2023-10-27 Weiqi Chu , Qin Li , Mason A. Porter

BACKGROUND: As databases grow larger, it becomes harder to fully control their collection, and they frequently come with missing values: incomplete observations. These large databases are well suited to train machine-learning models, for…

机器学习 · 计算机科学 2022-02-23 Alexandre Perez-Lebel , Gaël Varoquaux , Marine Le Morvan , Julie Josse , Jean-Baptiste Poline

We analyze the observability of motion estimates from the fusion of visual and inertial sensors. Because the model contains unknown parameters, such as sensor biases, the problem is usually cast as a mixed identification/filtering, and the…

机器人学 · 计算机科学 2015-04-28 Joshua Hernandez , Konstantine Tsotsos , Stefano Soatto

Belief functions are a powerful and popular framework for the mathematical characterisation of uncertainty, in particular in situations in which lack of data renders learning a probability distribution for the problem impractical. The first…

统计理论 · 数学 2026-05-11 Fabio Cuzzolin

Environmental, Social, and Governance (ESG) datasets are frequently plagued by significant data gaps, leading to inconsistencies in ESG ratings due to varying imputation methods. This paper explores the application of established machine…

机器学习 · 计算机科学 2024-07-30 Sergio Caprioli , Jacopo Foschi , Riccardo Crupi , Alessandro Sabatino

In order to trust the predictions of a machine learning algorithm, it is necessary to understand the factors that contribute to those predictions. In the case of probabilistic and uncertainty-aware models, it is necessary to understand not…

机器学习 · 统计学 2024-08-19 Danny Wood , Theodore Papamarkou , Matt Benatan , Richard Allmendinger

A myriad of explainability methods have been proposed in recent years, but there is little consensus on how to evaluate them. While automatic metrics allow for quick benchmarking, it isn't clear how such metrics reflect human interaction…

计算与语言 · 计算机科学 2021-06-30 Ana Valeria Gonzalez , Anna Rogers , Anders Søgaard

Many common loss functions such as mean-squared-error, cross-entropy, and reconstruction loss are unnecessarily rigid. Under a probabilistic interpretation, these common losses correspond to distributions with fixed shapes and scales. We…

机器学习 · 计算机科学 2020-10-05 Mark Hamilton , Evan Shelhamer , William T. Freeman