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Deep neural network is an effective choice to automatically recognize human actions utilizing data from various wearable sensors. These networks automate the process of feature extraction relying completely on data. However, various noises…

信号处理 · 电气工程与系统科学 2021-01-05 Tanvir Mahmud , A. Q. M. Sazzad Sayyed , Shaikh Anowarul Fattah , Sun-Yuan Kung

We describe a novel family of models of multi- layer feedforward neural networks in which the activation functions are encoded via penalties in the training problem. Our approach is based on representing a non-decreasing activation function…

机器学习 · 计算机科学 2018-06-22 Armin Askari , Geoffrey Negiar , Rajiv Sambharya , Laurent El Ghaoui

This paper introduces an active learning approach to the fitting of machine learning interatomic potentials. Our approach is based on the D-optimality criterion for selecting atomic configurations on which the potential is fitted. It is…

计算物理 · 物理学 2017-09-19 Evgeny V. Podryabinkin , Alexander V. Shapeev

Human learning relies on specialization -- distinct cognitive mechanisms working together to enable rapid learning. In contrast, most modern neural networks rely on a single mechanism: gradient descent over an objective function. This…

机器学习 · 计算机科学 2025-05-16 Daniel Weitekamp , Christopher MacLellan , Erik Harpstead , Kenneth Koedinger

To compensate for sensory processing delays, the visual system must make predictions to ensure timely and appropriate behaviors. Recent work has found predictive information about the stimulus in neural populations early in vision…

神经元与认知 · 定量生物学 2018-10-05 Audrey J. Sederberg , Jason N. MacLean , Stephanie E. Palmer

Brain-inspired machine intelligence research seeks to develop computational models that emulate the information processing and adaptability that distinguishes biological systems of neurons. This has led to the development of spiking neural…

神经与进化计算 · 计算机科学 2024-10-28 Alexander Ororbia

Model selection requires repeatedly evaluating models on a given dataset and measuring their relative performances. In modern applications of machine learning, the models being considered are increasingly more expensive to evaluate and the…

机器学习 · 计算机科学 2020-10-21 Anant Raj , Cameron Musco , Lester Mackey , Nicolo Fusi

We propose stochastic, non-parametric activation functions that are fully learnable and individual to each neuron. Complexity and the risk of overfitting are controlled by placing a Gaussian process prior over these functions. The result is…

机器学习 · 统计学 2017-12-01 Sebastian Urban , Marcus Basalla , Patrick van der Smagt

The efficacy of interpolating via Variably Scaled Kernels (VSKs) is known to be dependent on the definition of a proper scaling function, but no numerical recipes to construct it are available. Previous works suggest that such a function…

We study the functional task of deep learning image classification models and show that image classification requires extrapolation capabilities. This suggests that new theories have to be developed for the understanding of deep learning as…

机器学习 · 计算机科学 2021-12-08 Roozbeh Yousefzadeh , Jessica A. Mollick

Neural nets are powerful function approximators, but the behavior of a given neural net, once trained, cannot be easily modified. We wish, however, for people to be able to influence neural agents' actions despite the agents never training…

机器学习 · 计算机科学 2022-02-01 Mycal Tucker , William Kuhl , Khizer Shahid , Seth Karten , Katia Sycara , Julie Shah

Now that spike trains from many neurons can be recorded simultaneously, there is a need for methods to decode these data to learn about the networks that these neurons are part of. One approach to this problem is to adjust the parameters of…

定量方法 · 定量生物学 2011-06-10 John Hertz , Yasser Roudi , Joanna Tyrcha

Topological data analysis (TDA) approaches are becoming increasingly popular for studying the dependence patterns in multivariate time series data. In particular, various dependence patterns in brain networks may be linked to specific tasks…

统计方法学 · 统计学 2025-12-08 Anass El Yaagoubi Bourakna , Moo K. Chung , Hernando Ombao

Building upon the concepts and mechanisms used for the development in Moving Points Algorithm, we will now explore how non linear decision boundaries can be developed for classification tasks. First we will look at the classification…

机器学习 · 计算机科学 2025-03-14 Vatsal Srivastava

Kernel interpolation is a versatile tool for the approximation of functions from data, and it can be proven to have some optimality properties when used with kernels related to certain Sobolev spaces. In the context of interpolation, the…

数值分析 · 数学 2025-01-09 Gabriele Santin , Tizian Wenzel , Bernard Haasdonk

Networks of interconnected neurons communicating through spiking signals offer the bedrock of neural computations. Our brains spiking neural networks have the computational capacity to achieve complex pattern recognition and cognitive…

神经与进化计算 · 计算机科学 2024-12-06 Naresh Ravichandran , Anders Lansner , Pawel Herman

Spikes are the currency in central nervous systems for information transmission and processing. They are also believed to play an essential role in low-power consumption of the biological systems, whose efficiency attracts increasing…

神经与进化计算 · 计算机科学 2020-05-05 Qiang Yu , Shenglan Li , Huajin Tang , Longbiao Wang , Jianwu Dang , Kay Chen Tan

Recently, neural networks have been widely applied in the power system area. They can be used for better predicting input information and modeling system performance with increased accuracy. In some applications such as battery degradation…

机器学习 · 计算机科学 2025-05-27 Cunzhi Zhao , Fan Jiang , Xingpeng Li

An increasing number of computer vision tasks can be tackled with deep features, which are the intermediate outputs of a pre-trained Convolutional Neural Network. Despite the astonishing performance, deep features extracted from low-level…

计算机视觉与模式识别 · 计算机科学 2016-05-03 Lingxi Xie , Liang Zheng , Jingdong Wang , Alan Yuille , Qi Tian

We present a simple linear regression based approach for learning the weights and biases of a neural network, as an alternative to standard gradient based backpropagation. The present work is exploratory in nature, and we restrict the…

机器学习 · 计算机科学 2023-07-17 Harshad Khadilkar