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Deep learning models generating structural brain MRIs have the potential to significantly accelerate discovery of neuroscience studies. However, their use has been limited in part by the way their quality is evaluated. Most evaluations of…

图像与视频处理 · 电气工程与系统科学 2024-09-16 Jiaqi Wu , Wei Peng , Binxu Li , Yu Zhang , Kilian M. Pohl

Large graphs are natural mathematical models for describing the structure of the data in a wide variety of fields, such as web mining, social networks, information retrieval, biological networks, etc. For all these applications, automatic…

应用统计 · 统计学 2008-01-08 Romain Boulet , Bertrand Jouve , Fabrice Rossi , Nathalie Villa

Traditional causal connectivity methods in task-based and resting-state functional magnetic resonance imaging (fMRI) face challenges in accurately capturing directed information flow due to their sensitivity to noise and inability to model…

神经元与认知 · 定量生物学 2025-04-03 Boseong Kim , Debashis Das Chakladar , Haejun Chung , Ikbeom Jang

Functional Magnetic Resonance Imaging (fMRI) is a powerful non-invasive tool for localizing and analyzing brain activity. This study focuses on one very important aspect of the functional properties of human brain, specifically the…

人工智能 · 计算机科学 2014-10-28 Harris V. Georgiou

There is an increasing demand for scalable algorithms capable of clustering and analyzing large time series datasets. The Kohonen self-organizing map (SOM) is a type of unsupervised artificial neural network for visualizing and clustering…

机器学习 · 计算机科学 2021-08-27 Ali Javed , Donna M. Rizzo , Byung Suk Lee , Robert Gramling

Functional magnetic resonance imaging (fMRI) is a powerful tool for investigating human brain function. However, the high cost of data acquisition and the inherent subjectivity of psychiatric rating scales often lead to datasets with small…

The Segment Anything Model (SAM) has demonstrated remarkable capabilities of scaled-up segmentation models, enabling zero-shot generalization across a variety of domains. By leveraging large-scale foundational models as pre-trained models,…

计算机视觉与模式识别 · 计算机科学 2023-08-29 Weijia Feng , Lingting Zhu , Lequan Yu

Nowadays, with the advance of technology, there is an increasing amount of unstructured data being generated every day. However, it is a painful job to label and organize it. Labeling is an expensive, time-consuming, and difficult task. It…

机器学习 · 计算机科学 2020-06-25 Pedro H. M. Braga , Heitor R. Medeiros , Hansenclever F. Bassani

Segment Anything Model (SAM) has revolutionized the way of segmentation. However, SAM's performance may decline when applied to tasks involving domains that differ from natural images. Nonetheless, by employing fine-tuning techniques, SAM…

计算机视觉与模式识别 · 计算机科学 2023-06-27 Lin Wang , Xiufen Ye , Liqiang Zhu , Weijie Wu , Jianguo Zhang , Huiming Xing , Chao Hu

Image segmentation foundation models (SFMs) like Segment Anything Model (SAM) have achieved impressive zero-shot and interactive segmentation across diverse domains. However, they struggle to segment objects with certain structures,…

计算机视觉与模式识别 · 计算机科学 2025-11-17 Yixin Zhang , Nicholas Konz , Kevin Kramer , Maciej A. Mazurowski

Multimodal remote sensing data, acquired from diverse sensors, offer a comprehensive and integrated perspective of the Earth's surface. Leveraging multimodal fusion techniques, semantic segmentation enables detailed and accurate analysis of…

计算机视觉与模式识别 · 计算机科学 2025-12-17 Xianping Ma , Xiaokang Zhang , Man-On Pun , Bo Huang

To characterize the location (mean, median) of a set of graphs, one needs a notion of centrality that is adapted to metric spaces, since graph sets are not Euclidean spaces. A standard approach is to consider the Frechet mean. In this work,…

机器学习 · 统计学 2022-01-19 Daniel Ferguson , Francois G. Meyer

Fractionally integrated time series, exhibiting long memory with slowly decaying autocorrelations, are frequently encountered in economics, finance, and related fields. Since the seminal work of Robinson (1995), a variety of semiparametric…

计量经济学 · 经济学 2025-12-17 Jason R. Blevins

We present a computational framework for analysis and visualization of non-linear functional connectivity in the human brain from resting state functional MRI (fMRI) data for purposes of recovering the underlying network community structure…

神经与进化计算 · 计算机科学 2014-07-16 Axel Wismüller , Xixi Wang , Adora M. DSouza , Mahesh B. Nagarajan

Due to the inherent flexibility of prompting, foundation models have emerged as the predominant force in the fields of natural language processing and computer vision. The recent introduction of the Segment Anything Model (SAM) signifies a…

图像与视频处理 · 电气工程与系统科学 2024-01-09 Yichi Zhang , Zhenrong Shen , Rushi Jiao

The functional independence measure (FIM) is widely used to evaluate patients' physical independence in activities of daily living. However, traditional FIM assessment imposes a significant burden on both patients and healthcare…

机器学习 · 计算机科学 2025-11-17 Jun Masaki , Ariaki Higashi , Naoko Shinagawa , Kazuhiko Hirata , Yuichi Kurita , Akira Furui

Standard fMRI connectivity analyses depend on aggregating the time series of individual voxels within regions of interest (ROIs). In certain cases, this spatial aggregation implies a loss of valuable functional and anatomical information…

神经元与认知 · 定量生物学 2019-08-12 Ruben Sanchez-Romero , Joseph D. Ramsey , Kun Zhang , Clark Glymour

Time-series of satellite images may reveal important data about changes in environmental conditions and natural or urban landscape structures that are of potential interest to citizens, historians, or policymakers. We applied a fast method…

计算机与社会 · 计算机科学 2018-03-30 John M. Wandeto , Henry O. Nyongesa , Birgitta Dresp-Langley

Physically-based overland flow models are computationally demanding, hindering their use for real-time applications. Therefore, the development of fast (and reasonably accurate) overland flow models is needed if they are to be used to…

计算机与社会 · 计算机科学 2018-10-08 Joao P. Leitao , Mohamed Zaghloul , Vahid Moosavi

Estimating output changes by input changes is the main task in causal analysis. In previous work, input and output Self-Organizing Maps (SOMs) were associated for causal analysis of multivariate and nonlinear data. Based on the association,…

计算机视觉与模式识别 · 计算机科学 2017-03-28 Younjin Chung , Joachim Gudmundsson , Masahiro Takatsuka