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In recent years, neural network approaches have shown superior performance to conventional hand-made features in numerous application areas. In particular, convolutional neural networks (ConvNets) exploit spatially local correlations across…

声音 · 计算机科学 2016-07-11 Yoonchang Han , Kyogu Lee

Multivariate Time Series Classification (MTSC) is a ubiquitous problem in science and engineering, particularly in neuroscience, where most data acquisition modalities involve the simultaneous time-dependent recording of brain activity in…

机器学习 · 计算机科学 2024-08-07 Adrià Solana , Erik Fransén , Gonzalo Uribarri

We propose Significance-Offset Convolutional Neural Network, a deep convolutional network architecture for regression of multivariate asynchronous time series. The model is inspired by standard autoregressive (AR) models and gating…

机器学习 · 计算机科学 2018-06-13 Mikołaj Bińkowski , Gautier Marti , Philippe Donnat

In this paper, we propose a novel behavior model for wideband PAs using a real-valued time-delay convolutional neural network (RVTDCNN). The input data of the model are sorted and arranged as the graph composed of the in-phase and…

信号处理 · 电气工程与系统科学 2020-05-21 Xin Hu , Zhijun Liu , Xiaofei Yu , Yulong Zhao , Wenhua Chen , Biao Hu , Xuekun Du , Xiang Li , Mohamed Helaoui , Weidong Wang , Fadhel M. Ghannouchi

Recent CNN and Transformer-based models tried to utilize frequency and periodicity information for long-term time series forecasting. However, most existing work is based on Fourier transform, which cannot capture fine-grained and local…

机器学习 · 计算机科学 2024-01-05 Peiyuan Liu , Beiliang Wu , Naiqi Li , Tao Dai , Fengmao Lei , Jigang Bao , Yong Jiang , Shu-Tao Xia

Most of the existing deep learning-based sequential recommendation approaches utilize the recurrent neural network architecture or self-attention to model the sequential patterns and temporal influence among a user's historical behavior and…

信息检索 · 计算机科学 2022-01-17 Liwei Huang , Yutao Ma , Yanbo Liu , Bohong , Du , Shuliang Wang , Deyi Li

This paper introduces a robust stress detection system utilizing a Convolutional Neural Network (CNN) designed for the analysis of Photoplethysmogram (PPG) signals. Employing the WESAD dataset, we applied Continuous Wavelet Transform (CWT)…

信号处理 · 电气工程与系统科学 2024-10-29 Yasin Hasanpoor , Amin Rostami , Bahram Tarvirdizadeh , Khalil Alipour , Mohammad Ghamari

Modeling complex spatial and temporal correlations in the correlated time series data is indispensable for understanding the traffic dynamics and predicting the future status of an evolving traffic system. Recent works focus on designing…

机器学习 · 计算机科学 2020-10-23 Lei Bai , Lina Yao , Can Li , Xianzhi Wang , Can Wang

This paper investigates the use of probabilistic neural networks (PNNs) to model aleatoric uncertainty, which refers to the inherent variability in the input-output relationships of a system, often characterized by unequal variance or…

机器学习 · 统计学 2024-02-22 Farhad Pourkamali-Anaraki , Jamal F. Husseini , Scott E. Stapleton

In computer vision, convolutional networks (CNNs) often adopts pooling to enlarge receptive field which has the advantage of low computational complexity. However, pooling can cause information loss and thus is detrimental to further…

计算机视觉与模式识别 · 计算机科学 2019-07-09 Pengju Liu , Hongzhi Zhang , Wei Lian , Wangmeng Zuo

Multivariate time series forecasting is extensively studied throughout the years with ubiquitous applications in areas such as finance, traffic, environment, etc. Still, concerns have been raised on traditional methods for incapable of…

机器学习 · 计算机科学 2018-09-10 Yen-Yu Chang , Fan-Yun Sun , Yueh-Hua Wu , Shou-De Lin

This research identifies a gap in weakly-labelled multivariate time-series classification (TSC), where state-of-the-art TSC models do not per-form well. Weakly labelled time-series are time-series containing noise and significant…

机器学习 · 计算机科学 2021-09-20 Surayez Rahman , Chang Wei Tan

Temporal models based on recurrent neural networks have proven to be quite powerful in a wide variety of applications. However, training these models often relies on back-propagation through time, which entails unfolding the network over…

神经与进化计算 · 计算机科学 2019-08-13 Alexander Ororbia , Ankur Mali , C. Lee Giles , Daniel Kifer

Deep learning-based speech enhancement methods have significantly improved speech quality and intelligibility. Convolutional neural networks (CNNs) have been proven to be essential components of many high-performance models. In this paper,…

音频与语音处理 · 电气工程与系统科学 2025-11-11 Dahan Wang , Xiaobin Rong , Shiruo Sun , Yuxiang Hu , Changbao Zhu , Jing Lu

Recurrence networks are powerful tools used effectively in the nonlinear analysis of time series data. The analysis in this context is done mostly with unweighted and undirected complex networks constructed with specific criteria from the…

混沌动力学 · 物理学 2017-09-18 Rinku Jacob , K. P. Harikrishnan , R. Misra , G. Ambika

Recently, the incorporation of both temporal features and the correlation across time series has become an effective approach in time series prediction. Spatio-Temporal Graph Neural Networks (STGNNs) demonstrate good performance on many…

机器学习 · 计算机科学 2024-07-29 Wenbo Yan , Ying Tan

Many real-world time series, such as in health, have changepoints where the system's structure or parameters change. Since changepoints can indicate critical events such as onset of illness, it is highly important to detect them. However,…

机器学习 · 计算机科学 2019-05-17 Zahra Ebrahimzadeh , Min Zheng , Selcuk Karakas , Samantha Kleinberg

Time series data are often obtained only within a limited time range due to interruptions during observation process. To classify such partial time series, we need to account for 1) the variable-length data drawn from 2) different…

机器学习 · 计算机科学 2022-07-14 Azusa Sawada , Taiki Miyagawa , Akinori F. Ebihara , Shoji Yachida , Toshinori Hosoi

Speech dereverberation is an important stage in many speech technology applications. Recent work in this area has been dominated by deep neural network models. Temporal convolutional networks (TCNs) are deep learning models that have been…

声音 · 计算机科学 2022-07-26 William Ravenscroft , Stefan Goetze , Thomas Hain

The complex spatial-temporal correlations in transportation networks make the traffic forecasting problem challenging. Since transportation system inherently possesses graph structures, many research efforts have been put with graph neural…

机器学习 · 计算机科学 2024-03-22 Yuyol Shin , Yoonjin Yoon