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A spectral mixture (SM) kernel is a flexible kernel used to model any stationary covariance function. Although it is useful in modeling data, the learning of the SM kernel is generally difficult because optimizing a large number of…

机器学习 · 统计学 2020-06-15 Yohan Jung , Kyungwoo Song , Jinkyoo Park

In this paper we present an efficient model of the neuronal potentials recorded by a deep brain stimulation microelectrode (DBS MER) in the subthalamic nucleus. It is shown that a computationally efficient filtered point process consisting…

神经元与认知 · 定量生物学 2016-07-05 Kristian J. Weegink , Paul A. Bellette , John J. Varghese , Peter A. Silburn , Paul A. Meehan , Andrew P. Bradley

Deep convolutional neural networks (ConvNets) of 3-dimensional kernels allow joint modeling of spatiotemporal features. These networks have improved performance of video and volumetric image analysis, but have been limited in size due to…

计算机视觉与模式识别 · 计算机科学 2017-06-13 David Budden , Alexander Matveev , Shibani Santurkar , Shraman Ray Chaudhuri , Nir Shavit

Convolutional neural networks have shown great success on feature extraction from raw input data such as images. Although convolutional neural networks are invariant to translations on the inputs, they are not invariant to other…

计算机视觉与模式识别 · 计算机科学 2018-09-05 Hongyang Gao , Shuiwang Ji

Convolutional neural networks (CNNs) are widely used for image recognition and text analysis, and have been suggested for application on one-dimensional data as a way to reduce the need for pre-processing steps. Pre-processing is an…

机器学习 · 计算机科学 2020-05-18 Ine L. Jernelv , Dag Roar Hjelme , Yuji Matsuura , Astrid Aksnes

It is now well understood that convex programming can be used to estimate the frequency components of a spectrally sparse signal from $2m+1$ uniform temporal measurements. It is conjectured that a phase transition on the success of the…

信息论 · 计算机科学 2021-10-18 Maxime Ferreira Da Costa , Wei Dai

X-ray phase-contrast imaging offers enhanced sensitivity for weakly-attenuating materials, such as breast and brain tissue, but has yet to be widely implemented clinically due to high coherence requirements and expensive x-ray optics.…

医学物理 · 物理学 2023-05-04 Serena Qinyun Z. Shi , Nadav Shapira , Peter B. Noël , Sebastian Meyer

Quantum magnetometers based on spin defects in solids enable sensitive imaging of various magnetic phenomena, such as ferro- and antiferromagnetism, superconductivity, and current-induced fields. Existing protocols primarily focus on static…

Neuromorphic computing has recently gained momentum with the emergence of various neuromorphic processors. As the field advances, there is an increasing focus on developing training methods that can effectively leverage the unique…

新兴技术 · 计算机科学 2025-04-15 Sanaz Mahmoodi Takaghaj , Jack Sampson

Sleep is among the most important factors affecting one's daily performance, well-being, and life quality. Nevertheless, it became possible to measure it in daily life in an unobtrusive manner with wearable devices. Rather than camera…

信号处理 · 电气工程与系统科学 2023-03-13 Ozan Kılıç , Berrenur Saylam , Özlem Durmaz İncel

This thesis studies how the segmentation results, produced by convolutional neural networks (CNN), is different from each other when applied to small biomedical datasets. We use different architectures, parameters and hyper-parameters,…

图像与视频处理 · 电气工程与系统科学 2020-11-04 Vitaly Nikolaev

Convolutional neural networks (CNNs) have been employed along with Variational Monte Carlo methods for finding the ground state of quantum many-body spin systems with great success. In order to do so, however, a CNN with only linearly many…

量子物理 · 物理学 2022-10-04 Yilong Ju , Shah Saad Alam , Jonathan Minoff , Fabio Anselmi , Han Pu , Ankit Patel

The paper addresses the problem of parameter estimation (or identification) in dynamical networks composed of an arbitrary number of FitzHugh-Nagumo neuron models with diffusive couplings between each other. It is assumed that only the…

系统与控制 · 电气工程与系统科学 2025-02-25 Aleksandra Rybalko , Alexander Fradkov

Convolutional neural networks (CNNs) are important in a wide variety of machine learning tasks and applications, so optimizing their performance is essential. Moving words of data between levels of a memory hierarchy or between processors…

分布式、并行与集群计算 · 计算机科学 2022-07-14 Anthony Chen , James Demmel , Grace Dinh , Mason Haberle , Olga Holtz

Metric functions for phoneme perception capture the similarity structure among phonemes in a given language and therefore play a central role in phonology and psycho-linguistics. Various phenomena depend on phoneme similarity, such as…

机器学习 · 计算机科学 2018-09-24 Yair Lakretz , Gal Chechik , Evan-Gary Cohen , Alessandro Treves , Naama Friedmann

We consider the problem of metric learning subject to a set of constraints on relative-distance comparisons between the data items. Such constraints are meant to reflect side-information that is not expressed directly in the feature vectors…

机器学习 · 计算机科学 2016-12-06 Ehsan Amid , Aristides Gionis , Antti Ukkonen

The analysis of the structure of musical pieces is a task that remains a challenge for Artificial Intelligence, especially in the field of Deep Learning. It requires prior identification of structural boundaries of the music pieces. This…

音频与语音处理 · 电气工程与系统科学 2021-12-02 Carlos Hernandez-Olivan , Jose R. Beltran , David Diaz-Guerra

Neuromodulations as observed in the extracellular electrical potential recordings obtained from Electroencephalograms (EEG) manifest as organized, transient patterns that differ statistically from their featureless noisy background.…

信号处理 · 电气工程与系统科学 2019-05-28 Shailaja Akella , Jose C. Principe

Complex spin textures in itinerant electron magnets hold promises for next-generation memory and information technology. The long-ranged and often frustrated electron-mediated spin interactions in these materials give rise to intriguing…

强关联电子 · 物理学 2024-06-18 Xinlun Cheng , Sheng Zhang , Phong C. H. Nguyen , Shahab Azarfar , Gia-Wei Chern , Stephen S. Baek

Spiking Neural Networks (SNNs) have received extensive academic attention due to the unique properties of low power consumption and high-speed computing on neuromorphic chips. Among various training methods of SNNs, ANN-SNN conversion has…

神经与进化计算 · 计算机科学 2023-02-07 Zecheng Hao , Tong Bu , Jianhao Ding , Tiejun Huang , Zhaofei Yu