Zobrazeno 1 - 10
of 228
pro vyhledávání: '"sample imbalance"'
Publikováno v:
Frontiers in Energy Research, Vol 12 (2024)
This paper proposes a novel two-stage transient stability assessment (TSA) model that integrates ensemble learning with cost sensitivity to address the challenges posed by the integration of renewable energy and load fluctuations. The model employs C
Externí odkaz:
https://doaj.org/article/bfd5bdb748e24b5d9c8268df98720e3e
Publikováno v:
Energies, Vol 17, Iss 20, p 5095 (2024)
Accurate and fast transient stability assessment (TSA) of power systems is crucial for safe operation. However, deep learning-based methods require long training and fail to simultaneously extract the spatiotemporal characteristics of the transient p
Externí odkaz:
https://doaj.org/article/46fba57c53b54403beedf7e6426443e2
Publikováno v:
Zhongguo Jianchuan Yanjiu, Vol 18, Iss 5, Pp 269-275 (2023)
Objectives Aiming at the problems that the traditional marine main engine fault diagnosis model is difficult to update with real-time data, and the marine main engine has many monitoring points but few fault samples, a fault diagnosis method which ca
Externí odkaz:
https://doaj.org/article/987fa2f8d9d84e83a8fcc0af79bb8cde
A Bearing Fault Diagnosis Method in Scenarios of Imbalanced Samples and Insufficient Labeled Samples
Publikováno v:
Applied Sciences, Vol 14, Iss 19, p 8582 (2024)
In practical working environments, rolling bearings are one of the components that are prone to failure. Their vibration signal samples are faced with challenges, mainly including the imbalance between normal and fault samples as well as an insuffici
Externí odkaz:
https://doaj.org/article/b46afafa1d6a46249931868ef9c18c14
Publikováno v:
Underground Space, Vol 11, Iss , Pp 204-217 (2023)
With tunnel boring machine being used in underground engineering, accurate geological indicators have been the important basis for tunnel boring machine (TBM) construction. Back propagation neural network (BPNN) has been used to predict the geologica
Externí odkaz:
https://doaj.org/article/13571aa8eec642eb8dad637f4c0f6240
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 11 (2024)
The physics of solar flares occurring on the Sun is highly complex and far from fully understood. However, observations show that solar eruptions are associated with the intense kilogauss fields of active regions, where free energies are stored with
Externí odkaz:
https://doaj.org/article/2f3b7d112d704e979ece84f6022cdb7c
Publikováno v:
Frontiers in Plant Science, Vol 14 (2023)
Hyperspectral imaging is a key technology for non-destructive detection of seed vigor presently due to its capability to capture variations of optical properties in seeds. As the seed vigor data depends on the actual germination rate, it inevitably r
Externí odkaz:
https://doaj.org/article/2c9a7821fddc48b588dd637903123857
Autor:
Yun Tao
Publikováno v:
IEEE Access, Vol 11, Pp 46644-46652 (2023)
Quantitative analysis of blended fabrics plays a vital role in quality inspection and trade. As a method yielding non-destructive, pollution-free, and easy-to-obtain data, near-infrared spectroscopy is becoming an important supplement to the detectio
Externí odkaz:
https://doaj.org/article/5536ad111e9948a1af0a4b16571a10c0
Publikováno v:
Mathematics, Vol 12, Iss 6, p 818 (2024)
Terrorism poses a significant threat to international peace and stability. The ability to predict potential casualties resulting from terrorist attacks, based on specific attack characteristics, is vital for protecting the safety of innocent civilian
Externí odkaz:
https://doaj.org/article/86caf0f0f35540d6b1ef5339de2dba37
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