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Existing deepfake detectors face several challenges in achieving robustness and generalization. One of the primary reasons is their limited ability to extract relevant information from forgery videos, especially in the presence of various…

Computer Vision and Pattern Recognition · Computer Science 2023-05-01 Zhiyuan Yan , Peng Sun , Yubo Lang , Shuo Du , Shanzhuo Zhang , Wei Wang , Lei Liu

In this paper, we present a new deep learning architecture for addressing the problem of supervised learning with sparse and irregularly sampled multivariate time series. The architecture is based on the use of a semi-parametric…

Machine Learning · Computer Science 2019-09-18 Satya Narayan Shukla , Benjamin M. Marlin

With the growing complexity and dynamics of the mobile communication networks, accurately predicting key system parameters, such as channel state information (CSI), user location, and network traffic, has become essential for a wide range…

Artificial Intelligence · Computer Science 2025-08-06 Yucheng Sheng , Jiacheng Wang , Xingyu Zhou , Le Liang , Hao Ye , Shi Jin , Geoffrey Ye Li

Supporting high mobility in millimeter wave (mmWave) systems enables a wide range of important applications such as vehicular communications and wireless virtual/augmented reality. Realizing this in practice, though, requires overcoming…

Information Theory · Computer Science 2019-02-25 Ahmed Alkhateeb , Sam Alex , Paul Varkey , Ying Li , Qi Qu , Djordje Tujkovic

Diffusion MRI (dMRI) is the primary imaging modality used to study brain microstructure in vivo. Reliable and computationally efficient parameter inference for common dMRI biophysical models is a challenging inverse problem, due to factors…

Image and Video Processing · Electrical Eng. & Systems 2025-03-03 William Consagra , Lipeng Ning , Yogesh Rathi

In multi-agent collaborative sensing systems, substantial communication overhead from information exchange significantly limits scalability and real-time performance, especially in bandwidth-constrained environments. This often results in…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Erdemt Bao , Jin Yang

Reliable fault detection is an essential requirement for safe and efficient operation of complex mechanical systems in various industrial applications. Despite the abundance of existing approaches and the maturity of the fault detection…

Signal Processing · Electrical Eng. & Systems 2024-08-19 Tianfu Li , Chuang Sun , Ruqiang Yan , Xuefeng Chen

Conventional time series classification approaches based on bags of patterns or shapelets face significant challenges in dealing with a vast amount of feature candidates from high-dimensional multivariate data. In contrast, deep neural…

Machine Learning · Computer Science 2023-06-07 Raneen Younis , Abdul Hakmeh , Zahra Ahmadi

Chest radiographs are used for the diagnosis of multiple critical illnesses (e.g., Pneumonia, heart failure, lung cancer), for this reason, systems for the automatic or semi-automatic analysis of these data are of particular interest. An…

Image and Video Processing · Electrical Eng. & Systems 2022-05-10 Declan McIntosh , Tunai Porto Marques , Alexandra Branzan Albu

Envelope model also known as multivariate regression model was proposed to solve the multiple response regression problems. It measures the linear association between predictors and multiple responses by using the minimal reducing subspace…

Methodology · Statistics 2018-05-07 Bochao Jia

Cardiovascular diseases (CVDs) are the leading cause of death worldwide, accounting for approximately 17.9 million deaths each year. Early detection is critical, creating a demand for accurate and inexpensive pre-screening methods. Deep…

Sound · Computer Science 2025-12-09 Milan Marocchi , Matthew Fynn , Kayapanda Mandana , Yue Rong

In current research, machine and deep learning solutions for the classification of temporal data are shifting from single-channel datasets (univariate) to problems with multiple channels of information (multivariate). The majority of these…

Machine Learning · Computer Science 2023-04-13 Leonardos Pantiskas , Kees Verstoep , Mark Hoogendoorn , Henri Bal

We propose a deep learning-based method that uses spatial and temporal information extracted from the sub-6GHz band to predict/track beams in the millimeter-wave (mmWave) band. In more detail, we consider a dual-band communication system…

Signal Processing · Electrical Eng. & Systems 2021-07-19 Rafail Ismayilov , Renato L. G. Cavalcante , Sławomir Stańczak

Sixth-generation (6G) networks are envisioned to achieve full-band cognition by jointly utilizing spectrum resources from Frequency Range 1 (FR1) to Frequency Range 3 (FR3, 7-24 GHz). Realizing this vision faces two challenges. First,…

Information Theory · Computer Science 2026-04-14 Chi-Jui Sung , Fan-Hao Lin , Tzu-Hao Huang , Chu-Hsiang Huang , Hui Chen , Chao-Kai Wen , Henk Wymeersch

Modeling temporal characteristics and the non-stationary dynamics of body movement plays a significant role in predicting human future motions. However, it is challenging to capture these features due to the subtle transitions involved in…

Computer Vision and Pattern Recognition · Computer Science 2024-11-28 Yuming Feng , Zhiyang Dou , Ling-Hao Chen , Yuan Liu , Tianyu Li , Jingbo Wang , Zeyu Cao , Wenping Wang , Taku Komura , Lingjie Liu

In this paper, we consider signals with intra-wave frequency modulation. To handle this kind of signals effectively, we generalize our data-driven time-frequency analysis by using a shape function to describe the intra-wave frequency…

Information Theory · Computer Science 2016-04-27 Thomas Y. Hou , Zuoqiang Shi

Anomaly detection in multivariate time series is challenging as heterogeneous subsequence anomalies may occur. Reconstruction-based methods, which focus on learning normal patterns in the frequency domain to detect diverse abnormal…

Machine Learning · Computer Science 2025-05-09 Xingjian Wu , Xiangfei Qiu , Zhengyu Li , Yihang Wang , Jilin Hu , Chenjuan Guo , Hui Xiong , Bin Yang

Decoding human activity accurately from wearable sensors can aid in applications related to healthcare and context awareness. The present approaches in this domain use recurrent and/or convolutional models to capture the spatio-temporal…

Human-Computer Interaction · Computer Science 2020-12-21 Satya P. Singh , Aimé Lay-Ekuakille , Deepak Gangwar , Madan Kumar Sharma , Sukrit Gupta

Monitoring complex systems results in massive multivariate time series data, and anomaly detection of these data is very important to maintain the normal operation of the systems. Despite the recent emergence of a large number of anomaly…

Machine Learning · Computer Science 2021-06-14 Liwei Deng , Xuanhao Chen , Yan Zhao , Kai Zheng

Anomaly Detection in multivariate time series is a major problem in many fields. Due to their nature, anomalies sparsely occur in real data, thus making the task of anomaly detection a challenging problem for classification algorithms to…

Machine Learning · Computer Science 2023-08-08 Anastasios Iliopoulos , John Violos , Christos Diou , Iraklis Varlamis