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One of the most challenging and non-trivial tasks in robot-based rescue operations is the Hazardous Materials or HAZMATs sign detection in the operation field, to prevent further unexpected disasters. Each Hazmat sign has a specific meaning…

Computer Vision and Pattern Recognition · Computer Science 2020-07-21 Amir Sharifi , Ahmadreza Zibaei , Mahdi Rezaei

Leaky waves are an important class of waves, particularly for guiding waves along structures embedded within another medium; a mismatch in wavespeeds often leads to leakage of energy from the waveguide, or interface, into the medium, which…

Fluid Dynamics · Physics 2024-01-30 Evripides Georgiades , Michael J. S. Lowe , Richard V. Craster

De-interleaving of the mixtures of Hidden Markov Processes (HMPs) generally depends on its representation model. Existing representation models consider Markov chain mixtures rather than hidden Markov, resulting in the lack of robustness to…

Machine Learning · Statistics 2024-06-04 Jiadi Bao , Mengtao Zhu , Yunjie Li , Shafei Wang

There is an increase in interest to model driving maneuver patterns via the automatic unsupervised clustering of naturalistic sequential kinematic driving data. The patterns learned are often used in transportation research areas such as…

Machine Learning · Statistics 2023-11-14 Matthew Aguirre , Wenbo Sun , Jionghua , Jin , Yang Chen

The hidden Markov model (HMM) provides a powerful framework for inference in time-varying environments, where the underlying state evolves according to a Markov chain. To address the optimal filtering problem in general dynamic settings, we…

Systems and Control · Electrical Eng. & Systems 2025-06-10 Dongyan Sui , Haotian Pu , Siyang Leng , Stefan Vlaski

Oil and gas reserves are vital resources for the global economy, serving as key components in transportation, energy production, and industrial processes. However, oil and gas extraction and production operations may encounter several…

Machine Learning · Computer Science 2025-06-16 Hellockston Gomes de Brito , Carla Wilza Souza de Paula Maitelli , Osvaldo Chiavone-Filho

A constructive proof of identification of multilinear decompositions of multiway arrays is presented. It can be applied to show identification in a variety of multivariate latent structures. Examples are finite-mixture models and hidden…

Statistics Theory · Mathematics 2016-08-06 Stéphane Bonhomme , Koen Jochmans , Jean-Marc Robin

This paper studies the traffic state estimation problem at signalized intersections with low penetration rate vehicle trajectory data. While many existing studies have proposed different methods to estimate unknown traffic states and…

Systems and Control · Electrical Eng. & Systems 2024-04-16 Xingmin Wang , Zihao Wang , Zachary Jerome , Henry X. Liu

The influence of temperature is a major problem in Structural Health Monitoring diagnosis using guided waves. In this article, two methods for temperature compensation are used to evaluate the temperature of a structure monitored by…

This paper presents a risk analysis of flowlines in the oil and gas sector using Geographic Information Systems (GIS) and machine learning (ML). Flowlines, vital conduits transporting oil, gas, and water from wellheads to surface…

Machine Learning · Computer Science 2025-01-22 I. Chittumuri , N. Alshehab , R. J. Voss , L. L. Douglass , S. Kamrava , Y. Fan , J. Miskimins , W. Fleckenstein , S. Bandyopadhyay

The routing of packets are generally performed based on the destination address and forward link channel available from the instantaneous Router without sufficient cognizance of either the performance of the forward Router or forward…

Networking and Internet Architecture · Computer Science 2016-09-08 T. R. Gopalakrishnan Nair , M. Jayalalitha , S. Abhijith

The detectors based on the liquid scintillator (LS) monitored by an array of photo-multiplier tubes (PMT) are often used in low energy experiments such as neutrino oscillation studies and search for dark matter. Detectors of this kind…

Scattered light noise affects the sensitivity of gravitational waves detectors. The characterization of such noise is needed to mitigate it. The time-varying filter empirical mode decomposition algorithm is suitable for identifying signals…

Instrumentation and Methods for Astrophysics · Physics 2022-09-21 Stefano Bianchi , Alessandro Longo , Guillermo Valdes , Gabriela González , Wolfango Plastino

Isolated sign recognition from video streams is a challenging problem due to the multi-modal nature of the signs, where both local and global hand features and face gestures needs to be attended simultaneously. This problem has recently…

Computer Vision and Pattern Recognition · Computer Science 2021-05-11 Anil Osman Tur , Hacer Yalim Keles

Finding the failure scenarios of a system is a very complex problem in the field of Probabilistic Safety Assessment (PSA). In order to solve this problem we will use the Hidden Quantum Markov Models (HQMMs) to create a generative model.…

Quantum Physics · Physics 2022-04-04 Ahmed Zaiou , Younès Bennani , Basarab Matei , Mohamed Hibti

The concept of a small, single-layer water Cherenkov detector, with three photomultiplier tubes (PMTs), placed at its bottom in a $120^{\circ}$ star configuration (\emph{Mercedes} Water Cherenkov Detector) is presented. The PMTs are placed…

The advancements in audio generative models have opened up new challenges in their responsible disclosure and the detection of their misuse. In response, we introduce a method to watermark latent generative models by a specific watermarking…

Sound · Computer Science 2024-09-05 Robin San Roman , Pierre Fernandez , Antoine Deleforge , Yossi Adi , Romain Serizel

It is crucial to reduce natural gas methane emissions, which can potentially offset the climate benefits of replacing coal with gas. Optical gas imaging (OGI) is a widely-used method to detect methane leaks, but is labor-intensive and…

Computer Vision and Pattern Recognition · Computer Science 2019-04-19 Jingfan Wang , Lyne P. Tchapmi , Arvind P. Ravikumara , Mike McGuire , Clay S. Bell , Daniel Zimmerle , Silvio Savarese , Adam R. Brandt

In this work, the residual complexity (RC) similarity measure, is employed for time delay estimation (TDE) in gas pipe leak localization. The properties of TDE by RC is compared with those of Cross Correlation(CC) and Mutual Information(MI)…

Instrumentation and Detectors · Physics 2013-08-27 A. M. Ahmadi , A. Amjadi , A. R. Bahrampour , H. Ravanbod

[This paper was initially published in PHME conference in 2016, selected for further publication in International Journal of Prognostics and Health Management.] This paper describes an Autoregressive Partially-hidden Markov model (ARPHMM)…

Machine Learning · Statistics 2021-05-04 Pablo Juesas , Emmanuel Ramasso , Sébastien Drujont , Vincent Placet