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This paper addresses the issue of model selection for hidden Markov models (HMMs). We generalize factorized asymptotic Bayesian inference (FAB), which has been recently developed for model selection on independent hidden variables (i.e.,…

机器学习 · 计算机科学 2012-06-22 Ryohei Fujimaki , Kohei Hayashi

In classification problems, the purpose of feature selection is to identify a small, highly discriminative subset of the original feature set. In many applications, the dataset may have thousands of features and only a few dozens of samples…

机器学习 · 计算机科学 2020-08-28 Ludmila I. Kuncheva , Clare E. Matthews , Álvar Arnaiz-González , Juan J. Rodríguez

Time series classification stands as a pivotal and intricate challenge across various domains, including finance, healthcare, and industrial systems. In contemporary research, there has been a notable upsurge in exploring feature extraction…

机器学习 · 计算机科学 2024-07-24 Alireza Keshavarzian , Shahrokh Valaee

We propose a new method for input variable selection in nonlinear regression. The method is embedded into a kernel regression machine that can model general nonlinear functions, not being a priori limited to additive models. This is the…

机器学习 · 计算机科学 2018-09-05 Magda Gregorová , Jason Ramapuram , Alexandros Kalousis , Stéphane Marchand-Maillet

Automated algorithm selection promises to support the user in the decisive task of selecting a most suitable algorithm for a given problem. A common component of these machine-trained techniques are regression models which predict the…

神经与进化计算 · 计算机科学 2020-06-18 Anja Jankovic , Carola Doerr

This paper proposes to use set features for detecting anomalies in samples that consist of unusual combinations of normal elements. Many leading methods discover anomalies by detecting an unusual part of a sample. For example,…

计算机视觉与模式识别 · 计算机科学 2025-03-20 Niv Cohen , Issar Tzachor , Yedid Hoshen

Feature allocation models postulate a sampling distribution whose parameters are derived from shared features. Bayesian models place a prior distribution on the feature allocation, and Markov chain Monte Carlo is typically used for model…

统计方法学 · 统计学 2022-07-29 David B. Dahl , Devin J. Johnson , R. Jacob Andros

Conformal prediction has emerged as a popular technique for facilitating valid predictive inference across a spectrum of machine learning models, under minimal assumption of exchangeability. Recently, Hoff (2023) showed that full conformal…

统计理论 · 数学 2025-11-24 Pankaj Bhagwat , Linglong Kong , Bei Jiang

Feature selection is generally used as one of the most important preprocessing techniques in machine learning, as it helps to reduce the dimensionality of data and assists researchers and practitioners in understanding data. Thereby, by…

机器学习 · 计算机科学 2021-04-26 Yiwen Liao , Raphaël Latty , Bin Yang

Both feature selection and hyperparameter tuning are key tasks in machine learning. Hyperparameter tuning is often useful to increase model performance, while feature selection is undertaken to attain sparse models. Sparsity may yield…

机器学习 · 统计学 2020-02-14 Martin Binder , Julia Moosbauer , Janek Thomas , Bernd Bischl

In order to allow machine learning algorithms to extract knowledge from raw data, these data must first be cleaned, transformed, and put into machine-appropriate form. These often very time-consuming phase is referred to as preprocessing.…

机器学习 · 计算机科学 2021-11-19 David Cemernek

Human decision-makers often receive assistance from data-driven algorithmic systems that provide a score for evaluating objects, including individuals. The scores are generated by a function (mechanism) that takes a set of features as input…

机器学习 · 计算机科学 2019-11-25 Abolfazl Asudeh , H. V. Jagadish

The earth system is exceedingly complex and often chaotic in nature, making prediction incredibly challenging: we cannot expect to make perfect predictions all of the time. Instead, we look for specific states of the system that lead to…

大气与海洋物理 · 物理学 2022-01-05 Elizabeth A. Barnes , Randal J. Barnes

In this book we introduce a new procedure called \alpha-Discounting Method for Multi-Criteria Decision Making (\alpha-D MCDM), which is as an alternative and extension of Saaty Analytical Hierarchy Process (AHP). It works for any number of…

人工智能 · 计算机科学 2015-10-05 Florentin Smarandache

Feature selection (FS) is a fundamental challenge in machine learning, particularly for high-dimensional tabular data, where interpretability and computational efficiency are critical. Existing FS methods often cannot automatically detect…

机器学习 · 计算机科学 2026-04-22 Witold Wydmański , Marek Śmieja

Machine learning models have achieved widespread success but often inherit and amplify historical biases, resulting in unfair outcomes. Traditional fairness methods typically impose constraints at the prediction level, without addressing…

机器学习 · 统计学 2026-02-10 Enze Shi , Pankaj Bhagwat , Zhixian Yang , Linglong Kong , Bei Jiang

Should prediction models always deliver a prediction? In the pursuit of maximum predictive performance, critical considerations of reliability and fairness are often overshadowed, particularly when it comes to the role of uncertainty.…

机器学习 · 计算机科学 2024-10-29 Anna Sokol , Nuno Moniz , Nitesh Chawla

Very often features come with their own vectorial descriptions which provide detailed information about their properties. We refer to these vectorial descriptions as feature side-information. In the standard learning scenario, input is…

机器学习 · 计算机科学 2017-03-09 Amina Mollaysa , Pablo Strasser , Alexandros Kalousis

Models with unnormalized probability density functions are ubiquitous in statistics, artificial intelligence and many other fields. However, they face significant challenges in model selection if the normalizing constants are intractable.…

统计方法学 · 统计学 2025-11-11 Rong Bian , Kung-Sik Chan , Bing Cheng , Howell Tong

The performance of visual quality prediction models is commonly assumed to be closely tied to their ability to capture perceptually relevant image aspects. Models are thus either based on sophisticated feature extractors carefully designed…

计算机视觉与模式识别 · 计算机科学 2021-06-11 Sören Becker , Thomas Wiegand , Sebastian Bosse