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This paper asks whether integrating multimodal EEG and fMRI data offers a better characterisation of functional brain architectures than either modality alone. This evaluation rests upon a dynamic causal model that generates both EEG and…

定量方法 · 定量生物学 2019-06-19 Huilin Wei , Amirhossein Jafarian , Peter Zeidman , Vladimir Litvak , Adeel Razi , Dewen Hu , Karl J. Friston

Tensor decompositions play a crucial role in numerous applications related to multi-way data analysis. By employing a Bayesian framework with sparsity-inducing priors, Bayesian Tensor Ring (BTR) factorization offers probabilistic estimates…

机器学习 · 计算机科学 2024-12-05 Zerui Tao , Toshihisa Tanaka , Qibin Zhao

Although understanding and characterizing causal effects have become essential in observational studies, it is challenging when the confounders are high-dimensional. In this article, we develop a general framework $\textit{CausalEGM}$ for…

机器学习 · 统计学 2023-03-20 Qiao Liu , Zhongren Chen , Wing Hung Wong

We address the problem of two-variable causal inference without intervention. This task is to infer an existing causal relation between two random variables, i.e. $X \rightarrow Y$ or $Y \rightarrow X$ , from purely observational data. As…

机器学习 · 统计学 2020-01-07 Maximilian Kurthen , Torsten A. Enßlin

To adopt neural networks in safety critical domains, knowing whether we can trust their predictions is crucial. Bayesian neural networks (BNNs) provide uncertainty estimates by averaging predictions with respect to the posterior weight…

机器学习 · 计算机科学 2021-03-17 Jannik Schmitt , Stefan Roth

We describe a polynomial network technique developed for learning to classify clinical electroencephalograms (EEGs) presented by noisy features. Using an evolutionary strategy implemented within Group Method of Data Handling, we learn…

人工智能 · 计算机科学 2007-05-23 Vitaly Schetinin , Joachim Schult

Diffusion models have recently driven significant breakthroughs in generative modeling. While state-of-the-art models produce high-quality samples on average, individual samples can still be low quality. Detecting such samples without human…

机器学习 · 计算机科学 2025-06-13 Metod Jazbec , Eliot Wong-Toi , Guoxuan Xia , Dan Zhang , Eric Nalisnick , Stephan Mandt

Electroencephalography (EEG) analysis stands at the forefront of neuroscience and artificial intelligence research, where foundation models are reshaping the traditional EEG analysis paradigm by leveraging their powerful representational…

人机交互 · 计算机科学 2025-08-25 Hongqi Li , Yitong Chen , Yujuan Wang , Weihang Ni , Haodong Zhang

A nonparanormal graphical model is a semiparametric generalization of a Gaussian graphical model for continuous variables in which it is assumed that the variables follow a Gaussian graphical model only after some unknown smooth monotone…

统计方法学 · 统计学 2021-02-23 Jami J. Mulgrave , Subhashis Ghosal

We introduce a probabilistic model with implicit norm regularization for learning nonnegative matrix factorization (NMF) that is commonly used for predicting missing values and finding hidden patterns in the data, in which the matrix…

机器学习 · 计算机科学 2022-08-23 Jun Lu , Christine P. Chai

Nested error regression models are useful tools for analysis of grouped data, especially in the case of small area estimation. This paper suggests a nested error regression model using uncertain random effects in which the random effect in…

统计方法学 · 统计学 2017-02-28 Shonosuke Sugasawa , Tatsuya Kubokawa

EEG technology finds applications in several domains. Currently, most EEG systems require subjects to wear several electrodes on the scalp to be effective. However, several channels might include noisy information, redundant signals, induce…

信号处理 · 电气工程与系统科学 2021-06-22 Michela C. Massi , Francesca Ieva

Count data frequently arises in biomedical applications, such as the length of hospital stay. However, their discrete nature poses significant challenges for appropriately modeling conditional quantiles, which are crucial for understanding…

统计方法学 · 统计学 2025-07-28 Yuta Yamauchi , Genya Kobayashi , Shonosuke Sugasawa

Designing categorical kernels is a major challenge for Gaussian process regression with continuous and categorical inputs. Despite previous studies, it is difficult to identify a preferred method, either because the evaluation metrics, the…

机器学习 · 统计学 2025-10-03 Raphaël Carpintero Perez , Sébastien Da Veiga , Josselin Garnier

We develop a Bayesian approach for selecting the model which is the most supported by the data within a class of marginal models for categorical variables formulated through equality and/or inequality constraints on generalised logits…

统计理论 · 数学 2012-02-21 Francesco Bartolucci , Luisa Scaccia , Alessio Farcomeni

In this paper, we derive a Bayesian model order selection rule by using the exponentially embedded family method, termed Bayesian EEF. Unlike many other Bayesian model selection methods, the Bayesian EEF can use vague proper priors and…

机器学习 · 统计学 2018-12-24 Zhenghan Zhu , Steven Kay

The electromagnetic nucleon form-factors data are studied with artificial feed forward neural networks. As a result the unbiased model-independent form-factor parametrizations are evaluated together with uncertainties. The Bayesian approach…

高能物理 - 唯象学 · 物理学 2014-11-21 Krzysztof M. Graczyk , Piotr Plonski , Robert Sulej

In high-dimensional data settings, additional information on the features is often available. Examples of such external information in omics research are: (a) p-values from a previous study, (b) a summary of prior information, and (c) omics…

统计方法学 · 统计学 2024-08-20 Magnus M. Münch , Carel F. W. Peeters , Aad W. van der Vaart , Mark A. van de Wiel

In this paper we demonstrate that it is possible to generate more meaningful electroencephalography (EEG) features from raw EEG features using generative adversarial networks (GAN) to improve the performance of EEG based continuous speech…

音频与语音处理 · 电气工程与系统科学 2020-06-03 Gautam Krishna , Co Tran , Mason Carnahan , Ahmed Tewfik

Most EEG-based Brain-Computer Interfaces (BCIs) require a considerable amount of training data to calibrate the classification model, owing to the high variability in the EEG data, which manifests itself between participants, but also…

机器学习 · 计算机科学 2022-03-29 Oleksandr Zlatov , Benjamin Blankertz