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Traditional supervised voice activity detection (VAD) methods work well in clean and controlled scenarios, with performance severely degrading in real-world applications. One possible bottleneck is that speech in the wild contains…

Sound · Computer Science 2020-08-18 Heinrich Dinkel , Yefei Chen , Mengyue Wu , Kai Yu

The authors propose a new modeling approach based on the impedance field method (IFM) to analyze the general geometric variations in device simulations. Compared with the direct modeling of multiple variational devices, the proposed…

Mesoscale and Nanoscale Physics · Physics 2016-04-27 Bo Fu , Seonghoon Jin , Woosung Choi , Keun-Ho Lee , Young-Kwan Park

This paper aims at improving predictive crime models by extending the mathematical framework of Artificial Neural Networks (ANNs) tailored to general spatiotemporal problems and appropriately applying them. Recent advancements in the…

Machine Learning · Computer Science 2025-04-01 Nicholas Robert Fisk , Matthew Ng Kok Ming , Zahratu Shabrina

We propose a new estimator for the Generalised Dynamic Factor Model (GDFM) that simplifies estimation by avoiding frequency-domain methods. Our key theoretical insight shows that under reasonable conditions the dynamic common component can…

Econometrics · Economics 2026-05-08 Philipp Gersing

We present the Mixed Likelihood Gaussian process latent variable model (GP-LVM), capable of modeling data with attributes of different types. The standard formulation of GP-LVM assumes that each observation is drawn from a Gaussian…

Machine Learning · Computer Science 2018-11-20 Samuel Murray , Hedvig Kjellström

Traditional fault diagnosis methods using Convolutional Neural Networks (CNNs) often struggle with capturing the temporal dynamics of vibration signals. To overcome this, the application of Transformer-based Vision Transformer (ViT) methods…

Systems and Control · Electrical Eng. & Systems 2025-01-03 Shouhua Zhang , Jiehan Zhou , Xue Ma , Susanna Pirttikangas , Chunsheng Yang

Traditional speech enhancement techniques modify the magnitude of a speech in time-frequency domain, and use the phase of a noisy speech to resynthesize a time domain speech. This work proposes a complex-valued Gaussian process latent…

Sound · Computer Science 2017-01-02 Sih-Huei Chen , Yuan-Shan Lee , Jia-Ching Wang

The construction of synthetic complex-valued signals from real-valued observations is an important step in many time series analysis techniques. The most widely used approach is based on the Hilbert transform, which maps the real-valued…

Machine Learning · Statistics 2017-12-08 Luca Ambrogioni , Eric Maris

Ensuring maritime safety and optimizing traffic management in increasingly crowded and complex waterways require effective waterway monitoring. However, current methods struggle with challenges arising from multimodal data, such as…

Artificial Intelligence · Computer Science 2025-04-15 Yuxu Lu , Kaisen Yang , Dong Yang , Haifeng Ding , Jinxian Weng , Ryan Wen Liu

Tensor time series (TTS) data, a generalization of one-dimensional time series on a high-dimensional space, is ubiquitous in real-world scenarios, especially in monitoring systems involving multi-source spatio-temporal data (e.g.,…

Machine Learning · Computer Science 2023-06-08 Jiewen Deng , Jinliang Deng , Renhe Jiang , Xuan Song

In unsupervised domain adaptation, rich domain-specific characteristics bring great challenge to learn domain-invariant representations. However, domain discrepancy is considered to be directly minimized in existing solutions, which is…

Computer Vision and Pattern Recognition · Computer Science 2020-03-31 Shuhao Cui , Shuhui Wang , Junbao Zhuo , Chi Su , Qingming Huang , Qi Tian

Simulating realistic time-domain observations of gravitational waves (GWs) and GW detector glitches can help in advancing GW data analysis. Simulated data can be used in downstream tasks by augmenting datasets for signal searches, balancing…

Instrumentation and Detectors · Physics 2025-10-23 Tom Dooney , Lyana Curier , Daniel Tan , Melissa Lopez , Chris Van Den Broeck , Stefano Bromuri

Phase transitions with spontaneous symmetry breaking and vector order parameter are considered in multidimensional theory of general relativity. Covariant equations, describing the gravitational properties of topological defects, are…

General Relativity and Quantum Cosmology · Physics 2014-11-21 Boris E. Meierovich

In this paper, a novel multi-modal intelligent channel model for sixth-generation (6G) multiple-unmanned aerial vehicle (multi-UAV)-to-multi-vehicle communications is proposed. To thoroughly explore the mapping relationship between the…

Signal Processing · Electrical Eng. & Systems 2025-01-16 Lu Bai , Mengyuan Lu , Ziwei Huang , Xiang Cheng

GVPT (Guided visual pitch tracking) is a publicly available, real-time pitch tracking software designed to guide and evaluate vocal pitch control using visual feedback. Developed for clinical and research applications, the system presents…

Sound · Computer Science 2025-05-05 Hyunjin Cho , Farhad Tabasi , Jeremy D. Greenlee , Rahul Singh

We introduce a novel model for spatially varying variational data fusion, driven by point-wise confidence values. The proposed model allows for the joint estimation of the data and the confidence values based on the spatial coherence of the…

Computer Vision and Pattern Recognition · Computer Science 2016-05-02 Valsamis Ntouskos , Fiora Pirri

In this work we provide a mathematical framework to describe the periodically time variant (PTV) linear systems. We study their frequency-domain features to estimate the output bandwidth, a necessary value to obtain a suitable digital…

Signal Processing · Electrical Eng. & Systems 2023-05-15 Juan I. Bonetti , Agustín C. Galletto , Mario R. Hueda

Deep learning model (primarily convolutional networks and LSTM) for time series classification has been studied broadly by the community with the wide applications in different domains like healthcare, finance, industrial engineering and…

Machine Learning · Computer Science 2021-03-29 Minghao Liu , Shengqi Ren , Siyuan Ma , Jiahui Jiao , Yizhou Chen , Zhiguang Wang , Wei Song

The generalized direction detection (GDD) problem involves determining the presence of a signal of interest within matrix-valued data, where the row and column spaces of the signal (if present) are known, but the speciffc coordinates are…

Applications · Statistics 2025-05-09 Zhenyu Xu , Weijian Liu , Changfei Wu , Qinglei Du , Jun Liu

Multi-view Detection (MVD) is highly effective for occlusion reasoning in a crowded environment. While recent works using deep learning have made significant advances in the field, they have overlooked the generalization aspect, which makes…

Computer Vision and Pattern Recognition · Computer Science 2022-03-15 Jeet Vora , Swetanjal Dutta , Kanishk Jain , Shyamgopal Karthik , Vineet Gandhi