[HTML][HTML] LoRa-based outdoor localization and tracking using unsupervised symbolization

KZ Islam, D Murray, D Diepeveen, MGK Jones, F Sohel - Internet of Things, 2024 - Elsevier
This paper proposes a long-range (LoRa)-based outdoor localization and tracking method.
Our method presents an unsupervised localization approach that utilizes symbolized LoRa …

Dynamic data-driven prediction of instability in a swirl-stabilized combustor

S Sarkar, SR Chakravarthy… - … Journal of Spray and …, 2016 - journals.sagepub.com
Combustion instability poses a negative impact on the performance and structural durability
of both land-based and aircraft gas turbine engines, and early detection of combustion …

Data-driven root-cause fault diagnosis for multivariate non-linear processes

B Rashidi, DS Singh, Q Zhao - Control Engineering Practice, 2018 - Elsevier
In a majority of multivariate processes, propagating nature of malfunctions makes the fault
diagnosis a challenging task. This paper presents a novel data-driven strategy for real-time …

Early detection of combustion instability from hi-speed flame images via deep learning and symbolic time series analysis

S Sarkar, KG Lore, S Sarkar… - … Conference of the …, 2015 - papers.phmsociety.org
Combustion instability, characterized by self-sustained, large-amplitude pressure
oscillations and periodic shedding of coherent vortex structures at varied spatial scales, has …

Health condition monitoring and early fault diagnosis of bearings using SDF and intrinsic characteristic-scale decomposition

Y Li, M Xu, Y Wei, W Huang - IEEE Transactions on …, 2016 - ieeexplore.ieee.org
Early fault diagnosis is crucial to reduce the machine downtime. This paper presents a novel
method based on symbolic dynamic filtering (SDF) for early fault detection and intrinsic …

Refined composite multivariate multiscale symbolic dynamic entropy and its application to fault diagnosis of rotating machine

Y Yang, H Zheng, J Yin, M Xu, Y Chen - Measurement, 2020 - Elsevier
Accurate and efficient identification of various fault categories, especially for the big data and
multisensory system, is a challenge in rotating machinery fault diagnosis. For the diagnosis …

Information fusion of passive sensors for detection of moving targets in dynamic environments

Y Li, DK Jha, A Ray… - IEEE transactions on …, 2016 - ieeexplore.ieee.org
This paper addresses the problem of target detection in dynamic environments in a semi-
supervised data-driven setting with low-cost passive sensors. A key challenge here is to …

Early detection of thermoacoustic instabilities using hidden markov models

S Mondal, NF Ghalyan, A Ray… - Combustion Science …, 2019 - Taylor & Francis
This paper presents a dynamic data-driven method for early detection of thermoacoustic
instabilities in combustors based on short-length time series of sensor data, where the …

Human activity discovery and recognition using probabilistic finite-state automata

K Viard, MP Fanti, G Faraut… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
Ambient assisted living and smart home technologies are a good way to take care of
dependent people whose number will increase in the future. They allow the discovery and …

A method based on refined composite multi-scale symbolic dynamic entropy and ISVM-BT for rotating machinery fault diagnosis

Y Li, X Liang, Y Wei, X Wang - Neurocomputing, 2018 - Elsevier
Multiscale symbolic dynamic entropy (MSDE) has been recently proposed to characterize
the dynamical behavior of time series, which has merits of high computational efficiency and …