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Related papers: Cluster Size Matters: A Comparative Study of Notip…

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Two permutation-based methods for simultaneous inference on the proportion of active voxels in cluster-wise brain imaging analysis have recently been published: Notip (Blain et al. 2022) and pARI (Andreella et al. 2023). Both rely on the…

Applications · Statistics 2024-02-07 Angela Andreella , Anna Vesely , Weeda Wouter , Jelle Goeman

Classical cluster inference is hampered by the spatial specificity paradox. Given the null-hypothesis of no active voxels, the alternative hypothesis states that there is at least one active voxel in a cluster. Hence, the larger the cluster…

Methodology · Statistics 2023-05-12 Xu Chen , Jelle J. Goeman , Thijmen J. P. Krebs , Rosa J. Meijer , Wouter D. Weeda

Cluster-level inference procedures are widely used for brain mapping. These methods compare the size of clusters obtained by thresholding brain maps to an upper bound under the global null hypothesis, computed using Random Field Theory or…

Methodology · Statistics 2022-07-27 Alexandre Blain , Bertrand Thirion , Pierre Neuvial

Recent reports of inflated false positive rates (FPRs) in FMRI group analysis tools by Eklund et al. (2016) have become a large topic within (and outside) neuroimaging. They concluded that: existing parametric methods for determining…

Quantitative Methods · Quantitative Biology 2017-02-17 Robert W. Cox , Gang Chen , Daniel R. Glen , Richard C. Reynolds , Paul A. Taylor

The Adjusted Rand Index ($ARI$) is arguably one of the most popular measures for cluster comparison. The adjustment of the $ARI$ is based on a hypergeometric distribution assumption which is unsatisfying from a modeling perspective as (i)…

Methodology · Statistics 2020-11-18 Martina Sundqvist , Julien Chiquet , Guillem Rigaill

Functional magnetic resonance imaging (fMRI) produces data about activity inside the brain, from which spatial maps can be extracted by independent component analysis (ICA). In datasets, there are n spatial maps that contain p voxels. The…

Computational Engineering, Finance, and Science · Computer Science 2016-11-17 Tuomo Sipola , Fengyu Cong , Tapani Ristaniemi , Vinoo Alluri , Petri Toiviainen , Elvira Brattico , Asoke K. Nandi

The most widely used task fMRI analyses use parametric methods that depend on a variety of assumptions. While individual aspects of these fMRI models have been evaluated, they have not been evaluated in a comprehensive manner with empirical…

Applications · Statistics 2016-07-14 Anders Eklund , Thomas Nichols , Hans Knutsson

A key design constraint when implementing Monte Carlo and variational inference algorithms is that it must be possible to cheaply and exactly evaluate the marginal densities of proposal distributions and variational families. This takes…

Machine Learning · Computer Science 2022-11-22 Alexander K. Lew , Marco Cusumano-Towner , Vikash K. Mansinghka

The adjusted Rand index (ARI) is commonly used in cluster analysis to measure the degree of agreement between two data partitions. Since its introduction, exploring the situations of extreme agreement and disagreement under different…

Machine Learning · Statistics 2020-12-10 José E. Chacón , Ana I. Rastrojo

In comparing clustering partitions, Rand index (RI) and Adjusted Rand index (ARI) are commonly used for measuring the agreement between the partitions. Both these external validation indexes aim to analyze how close is a cluster to a…

Methodology · Statistics 2016-03-17 Sonia Amodio , Antonio D'Ambrosio , Carmela Iorio , Roberta Siciliano

This paper presents an adaptive resonance theory predictive mapping (ARTMAP) model which uses incremental cluster validity indices (iCVIs) to perform unsupervised learning, namely iCVI-ARTMAP. Incorporating iCVIs to the decision-making and…

Machine Learning · Computer Science 2020-08-25 Leonardo Enzo Brito da Silva , Nagasharath Rayapati , Donald C. Wunsch

A standard assumption for causal inference about the joint effects of time-varying treatment is that one has measured sufficient covariates to ensure that within covariate strata, subjects are exchangeable across observed treatment values,…

Methodology · Statistics 2022-08-04 Andrew Ying , Wang Miao , Xu Shi , Eric J. Tchetgen Tchetgen

We consider the simultaneous clustering of rows and columns of a matrix and more particularly the ability to measure the agreement between two co-clustering partitions. The new criterion we developed is based on the Adjusted Rand Index and…

Applications · Statistics 2020-12-16 Valerie Robert , Yann Vasseur , Vincent Brault

For better clustering performance, appropriate representations are critical. Although many neural network-based metric learning methods have been proposed, they do not directly train neural networks to improve clustering performance. We…

Machine Learning · Statistics 2021-03-02 Tomoharu Iwata

Many applications require statistically valid inference across many related tasks, while using only a handful of high-quality labels per hypothesis. In AI evaluation, these tasks may correspond to model behaviors across prompts, subgroups,…

Machine Learning · Statistics 2026-05-29 Nicolas Emmenegger , Ellery Stahler , Chara Podimata

In this work we present Cutting Plane Inference (CPI), a Maximum A Posteriori (MAP) inference method for Statistical Relational Learning. Framed in terms of Markov Logic and inspired by the Cutting Plane Method, it can be seen as a meta…

Artificial Intelligence · Computer Science 2012-06-18 Sebastian Riedel

Recently, Eklund et al. (2016) analyzed clustering methods in standard FMRI packages: AFNI (which we maintain), FSL, and SPM [1]. They claimed: 1) false positive rates (FPRs) in traditional approaches are greatly inflated, questioning the…

Quantitative Methods · Quantitative Biology 2022-06-08 Robert W. Cox , Gang Chen , Daniel R. Glen , Richard C. Reynolds , Paul A. Taylor

New Intent Discovery (NID) aims to recognize known and infer new intent categories with the help of limited labeled and large-scale unlabeled data. The task is addressed as a feature-clustering problem and recent studies augment instance…

Computation and Language · Computer Science 2024-03-26 Shun Zhang , Jian Yang , Jiaqi Bai , Chaoran Yan , Tongliang Li , Zhao Yan , Zhoujun Li

Diffusion MRI is the modality of choice to study alterations of white matter. In past years, various works have used diffusion MRI for automatic classification of AD. However, classification performance obtained with different approaches is…

Inverse inference, or "brain reading", is a recent paradigm for analyzing functional magnetic resonance imaging (fMRI) data, based on pattern recognition and statistical learning. By predicting some cognitive variables related to brain…

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