中国科学院机构知识库网格系统: 检索

Adaptive Bitrate Video Caching in UAV-Assisted MEC Networks Based on Distributionally Robust Optimization 期刊论文 OAI收割
IEEE TRANSACTIONS ON MOBILE COMPUTING, 2024, 卷号: 23, 期号: 5, 页码: 5245-5259
作者: Chen, Yali; Liu, Min; Ai, Bo; Wang, Yuwei; Sun, Sheng

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收藏 | 浏览/下载：5/0 | 提交时间：2024/12/06

Streaming media Autonomous aerial vehicles Optimization Bit rate Servers Robustness Uncertainty Adaptive bitrate video caching mobile edge computing (MEC) optimization under uncertainty unmanned aerial vehicle (UAV)

DUASVS: A Mobile Data Saving Strategy in Short-Form Video Streaming 期刊论文 OAI收割
IEEE TRANSACTIONS ON SERVICES COMPUTING, 2023, 卷号: 16, 期号: 2, 页码: 1066-1078
作者: Zhang, Guanghui; Zhang, Jie; Liu, Ke; Guo, Jing; Lee, Jack Y. B.

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收藏 | 浏览/下载：18/0 | 提交时间：2023/12/04

Streaming media Switches Bit rate Prefetching Quality of experience Bandwidth Adaptation models Short video streaming mobile network data usage quality-of-experience video reliability

Modeling and Analysis of Thermal Covert Channel Attacks in Many-core Systems 期刊论文 OAI收割
IEEE TRANSACTIONS ON COMPUTERS, 2023, 卷号: 72, 期号: 2, 页码: 494-500
作者: Wang, Shengjie; Wang, Xiaohang; Jiang, Yingtao; Singh, Amit Kumar; Yang, Mei

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收藏 | 浏览/下载：11/0 | 提交时间：2023/07/12

Computational modeling Receivers Transmitters Encoding Bit error rate Signal to noise ratio Thermal conductivity Many-core systems thermal covert channel analytical model

Combating Stealthy Thermal Covert Channel Attack With Its Thermal Signal Transmitted in Direct Sequence Spread Spectrum 期刊论文 OAI收割
IEEE TRANSACTIONS ON COMPUTER-AIDED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS, 2022, 卷号: 41, 期号: 11, 页码: 4064-4075
作者: Wang, Xiaohang; Wang, Shengjie; Jiang, Yingtao; Singh, Amit Kumar; Yang, Mei

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收藏 | 浏览/下载：10/0 | 提交时间：2023/07/12

Spread spectrum communication Transmitters Encoding Bit error rate Receivers Codes Thermal noise Defense against covert channel attack many-core systems thermal covert channel (TCC) attack

CBREN: Convolutional Neural Networks for Constant Bit Rate Video Quality Enhancement 期刊论文 OAI收割
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, 2022, 卷号: 32, 期号: 7, 页码: 4138-4149
作者: Zhao, Hengrun; Zheng, Bolun; Yuan, Shanxin; Zhang, Hua; Yan, Chenggang

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收藏 | 浏览/下载：34/0 | 提交时间：2022/12/07

Image coding Quantization (signal) Streaming media Bit rate Image restoration Transform coding Video recording Quality enhancement CBR compressed video dual-domain restoration

Self-Supervised Enhancement for Named Entity Disambiguation via Multimodal Graph Convolution 期刊论文 OAI收割
IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS, 2022, 页码: 15
作者: Zhou, Pengfei; Ying, Kaining; Wang, Zhenhua; Guo, Dongyan; Bai, Cong

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收藏 | 浏览/下载：38/0 | 提交时间：2022/12/07

Task analysis Convolution Semantics Internet Bit error rate Visualization Pipelines Graph convolutional network (GCN) multimodal data named entity disambiguation (NED) self-supervised learning (SSL)

Multi-Level Multi-Modal Cross-Attention Network for Fake News Detection 期刊论文 OAI收割
IEEE ACCESS, 2021, 卷号: 9, 页码: 132363-132373
作者: Ying, Long; Yu, Hui; Wang, Jinguang; Ji, Yongze; Qian, Shengsheng

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收藏 | 浏览/下载：25/0 | 提交时间：2021/11/03

Feature extraction Semantics Visualization Task analysis Bit error rate Convolutional neural networks Social networking (online) Multi-level neural networks fake news detection multi-modal fusion

基于Malaga湍流信道和Nakagami衰弱信道的选择合并混合FSO/RF系统的性能分析 期刊论文 OAI收割
激光与光电子学进展, 2021, 卷号: 58
作者: 吴琰; 戴聪明; 赵凤美; 魏合理

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收藏 | 浏览/下载：10/0 | 提交时间：2023/11/10

atmospheric optics hybrid free space optical/radio frequency communication system Malaga turbulence channel Nakagami-m fading channel average bit error rate outage probability 大气光学混合自由空间光/射频通信系统 Malaga湍流信道 Nakagami-m衰弱信道平均误码率中断概率

The braking index of PSR B0540-69 and the associated pulsar wind nebula emission after spin-down rate transition 期刊论文 OAI收割
Monthly Notices of the Royal Astronomical Society, 2020, 卷号: 494, 页码: 1865-1870
作者: HXMT

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收藏 | 浏览/下载：54/0 | 提交时间：2022/02/08

stars: magnetic field stars: neutron pulsars: general Astrophysics - High Energy Astrophysical Phenomena Abstract: In 2011 December, PSR B054-69 experienced a spin-down rate transition (SRT), after which the spin-down power of the pulsar increased by $\sim 36{{\ \rm per\ cent}}$. About 1000 d after the SRT, the X-ray luminosity of the associated pulsar wind nebula (PWN) was found to brighten by $32\pm 8{{\ \rm per\ cent}}$. After the SRT, the braking index n of PSR B0540-69 changes from n = 2.12 to 0.03 and then keeps this value for about five years before rising to n = 0.9 in the following years. We find that most of the current models have difficulties in explaining the measured braking index. One exceptive model of the braking index evolution is the increasing dipole magnetic field of PSR B0540-69. We suggest that the field increase may result from some instabilities within the pulsar core that enhance the poloidal component at the price of toroidal component of the magnetic field. The increasing dipole magnetic field will result in the X-ray brightening of the PWN. We fit the PWN X-ray light curve by two models: one assumes a constant magnetic field within the PWN during the brightening and the other assumes an enhanced magnetic field proportional to the energy density of the PWN. It appears that the two models fit the data well, though the later model seems to fit the data a bit better. This provides marginal observational evidence that magnetic field in the PWN is generated by the termination shock. Future high-quality and high-cadence data are required to draw a solid conclusion.

Demonstration of horizontal free-space laser communication with the effect of the bandwidth of adaptive optics system 期刊论文 OAI收割
Optics Communications, 2019, 卷号: 431, 页码: 167-173
作者: R.Wang; Y.K.Wang; C.B.Jin; X.H.Yin; S.X.Wang

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收藏 | 浏览/下载：20/0 | 提交时间：2020/08/24

Free space laser communication,Adaptive optics,Horizontal turbulence,Bit error rate,performance evaluation,Optics