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Machine learning algorithms have recently been considered for many tasks in the field of wireless communications. Previously, we have proposed the use of a deep fully convolutional neural network (CNN) for receiver processing and shown it…

信号处理 · 电气工程与系统科学 2022-07-13 Janne M. J. Huttunen , Dani Korpi , Mikko Honkala

Variational regularization is commonly used to solve linear inverse problems, and involves augmenting a data fidelity by a regularizer. The regularizer is used to promote a priori information and is weighted by a regularization parameter.…

最优化与控制 · 数学 2024-01-23 Matthias J. Ehrhardt , Silvia Gazzola , Sebastian J. Scott

Convolutional neural networks (CNNs) are a popular choice of model for tasks in computer vision. When CNNs are made with many layers, resulting in a deep neural network, skip connections may be added to create an easier gradient…

计算机视觉与模式识别 · 计算机科学 2024-08-16 Johnny Joyce , Jan Verschelde

Data normalization is one of the most important preprocessing steps when building a machine learning model, especially when the model of interest is a deep neural network. This is because deep neural network optimized with stochastic…

统计金融 · 定量金融 2021-09-03 Dat Thanh Tran , Juho Kanniainen , Moncef Gabbouj , Alexandros Iosifidis

Probabilistic time series forecasting is crucial in many application domains such as retail, ecommerce, finance, or biology. With the increasing availability of large volumes of data, a number of neural architectures have been proposed for…

机器学习 · 计算机科学 2021-12-15 Olivier Sprangers , Sebastian Schelter , Maarten de Rijke

(Stochastic) bilevel optimization is a frequently encountered problem in machine learning with a wide range of applications such as meta-learning, hyper-parameter optimization, and reinforcement learning. Most of the existing studies on…

机器学习 · 计算机科学 2023-03-16 Meng Ding , Mingxi Lei , Yunwen Lei , Di Wang , Jinhui Xu

Bi-level optimization, especially the gradient-based category, has been widely used in the deep learning community including hyperparameter optimization and meta-knowledge extraction. Bi-level optimization embeds one problem within another…

机器学习 · 计算机科学 2023-07-11 Can Chen , Xi Chen , Chen Ma , Zixuan Liu , Xue Liu

Real-world time series often exhibit complex interdependencies that cannot be captured in isolation. Global models that model past data from multiple related time series globally while producing series-specific forecasts locally are now…

机器学习 · 计算机科学 2024-05-14 Abishek Sriramulu , Christoph Bergmeir , Slawek Smyl

In this paper, we study the problem of improving computational resource utilization of neural networks. Deep neural networks are usually over-parameterized for their tasks in order to achieve good performances, thus are likely to have…

计算机视觉与模式识别 · 计算机科学 2018-12-04 Siyuan Qiao , Zhe Lin , Jianming Zhang , Alan Yuille

Nearly all model algorithms used in machine learning use two different sets of parameters: the training parameters and the meta-parameters (hyperparameters). While the training parameters are learned during the training phase, the values of…

机器学习 · 计算机科学 2020-03-31 Razvan Andonie , Adrian-Catalin Florea

Continuous-time series is essential for different modern application areas, e.g. healthcare, automobile, energy, finance, Internet of things (IoT) and other related areas. Different application needs to process as well as analyse a massive…

机器学习 · 计算机科学 2024-09-17 Mansura Habiba , Barak A. Pearlmutter , Mehrdad Maleki

Recently, Deep Neural Network (DNN) algorithms have been explored for predicting trends in time series data. In many real world applications, time series data are captured from dynamic systems. DNN models must provide stable performance…

机器学习 · 计算机科学 2020-09-24 Kouame Hermann Kouassi , Deshendran Moodley

Artificial neural networks have gone through a recent rise in popularity, achieving state-of-the-art results in various fields, including image classification, speech recognition, and automated control. Both the performance and…

神经与进化计算 · 计算机科学 2016-11-08 Sean C. Smithson , Guang Yang , Warren J. Gross , Brett H. Meyer

Bilevel optimization has become a powerful framework in various machine learning applications including meta-learning, hyperparameter optimization, and network architecture search. There are generally two classes of bilevel optimization…

机器学习 · 计算机科学 2021-08-03 Kaiyi Ji

In many real-world application, e.g., speech recognition or sleep stage classification, data are captured over the course of time, constituting a Time-Series. Time-Series often contain temporal dependencies that cause two otherwise…

机器学习 · 计算机科学 2017-01-10 John Cristian Borges Gamboa

In recent years, convolutional neural networks (CNNs) have shown great performance in various fields such as image classification, pattern recognition, and multi-media compression. Two of the feature properties, local connectivity and…

机器学习 · 计算机科学 2018-07-24 Qianru Zhang , Meng Zhang , Tinghuan Chen , Zhifei Sun , Yuzhe Ma , Bei Yu

Neuroscience models commonly have a high number of degrees of freedom and only specific regions within the parameter space are able to produce dynamics of interest. This makes the development of tools and strategies to efficiently find…

Deep Convolutional Neural Networks (CNNs) are widely employed in modern computer vision algorithms, where the input image is convolved iteratively by many kernels to extract the knowledge behind it. However, with the depth of convolutional…

计算机视觉与模式识别 · 计算机科学 2018-04-11 Chih-Ting Liu , Yi-Heng Wu , Yu-Sheng Lin , Shao-Yi Chien

Hyperparameters are configuration variables controlling the behavior of machine learning algorithms. They are ubiquitous in machine learning and artificial intelligence and the choice of their values determines the effectiveness of systems…

Numerous deep learning architectures have been developed to accommodate the diversity of time series datasets across different domains. In this article, we survey common encoder and decoder designs used in both one-step-ahead and…

机器学习 · 统计学 2021-04-28 Bryan Lim , Stefan Zohren