Pipeline parallelism is a crucial paradigm for large-scale model training. However, imbalances in memory footprint across stages can lead to significant GPU memory wastage, limiting the model sizes that pipeline paral...
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Numerical simulations provide a new method to study the heat and mass transfer behavior during the electron beam evaporation (EBE) process, which can obtain some physical quantities that cannot be accurately measured ...
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Both obstacle and path planning are of significance for autonomous visual navigation of a mobile robot which is able to realize free movement and obstacle avoidance. In this paper, a scheme of obstacle detection which...
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An all-optical bi-directional polarization demultiplexing self-homodyne coherent system is proposed. In the 120-Gbit/s 16-QAM experimental demonstration, one adaptive polarization controller is applied to lock the pol...
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ISBN:
(纸本)9781943580866
An all-optical bi-directional polarization demultiplexing self-homodyne coherent system is proposed. In the 120-Gbit/s 16-QAM experimental demonstration, one adaptive polarization controller is applied to lock the polarization of uplink and downlink light at the same time.
We propose to apply ESS in DMT systems and find that it produces MB-like probability distributions over a large SNR range. Compared to CCDM, ESS with block length 100 achieves receiver sensitivity gain of 0.82 dB in 2...
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ISBN:
(纸本)9781943580910
We propose to apply ESS in DMT systems and find that it produces MB-like probability distributions over a large SNR range. Compared to CCDM, ESS with block length 100 achieves receiver sensitivity gain of 0.82 dB in 20-km SSMF transmission experiments at high shaping rates.
Existing person re-identification methods have achieved remarkable advances in appearance-based identity association across homogeneous cameras, such as ground-ground matching. However, as a more practical scenario, a...
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ISBN:
(数字)9798350353006
ISBN:
(纸本)9798350353013
Existing person re-identification methods have achieved remarkable advances in appearance-based identity association across homogeneous cameras, such as ground-ground matching. However, as a more practical scenario, aerial-ground person re-identification (AGPReID) among heterogeneous cameras has received minimal attention. To alleviate the disruption of discriminative identity representation by dramatic view discrepancy as the most significant challenge in AGPReID, the view-decoupled transformer (VDT) is proposed as a simple yet effective framework. Two major components are designed in VDT to decouple view-related and view-unrelated features, namely hierarchical subtractive separation and orthogonal loss, where the former separates these two features inside the VDT, and the latter constrains these two to be independent. In addition, we contribute a large-scale AGPReID dataset called CARGO, consisting of five/eight aerial/ground cameras, 5,000 identities, and 108,563 images. Experiments on two datasets show that VDT is a feasible and effective solution for AGPReID, surpassing the previous method on mAP/Rank1 by up to 5.0%/2.7% on CARGO and 3.7%/5.2% on AG-ReID, keeping the same magnitude of computational complexity. Our project is available at https://***/LinlyAC/VDT-AGPReID.
The terrestrial ecosystem in China mitigates 21%-45%of the national contemporary fossil fuel CO_(2) emissions every *** and strengthening the land carbon sink is essential for reaching China’s target of carbon ***,th...
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The terrestrial ecosystem in China mitigates 21%-45%of the national contemporary fossil fuel CO_(2) emissions every *** and strengthening the land carbon sink is essential for reaching China’s target of carbon ***,this sink is subject to large uncertainties due to the joint impacts of climate change,air pollution,and human ***,we explore the potential of strengthening land carbon sink in China through anthropogenic interventions,including forestation,ozone reduction,and litter removal,taking advantage of a well-validated dynamic vegetation model and meteorological forcings from 16 climate *** anthropogenic interventions,considering Shared Socioeconomic Pathways(SSP)scenarios,the land sink is projected to be 0.26-0.56 Pg C a^(-1) at 2060,to which climate change contributes 0.06-0.13 Pg C a^(-1) and CO_(2) fertilization contributes 0.08-0.44 Pg C a^(-1) with the stronger effects for higher emission *** anthropogenic interventions,under a close-to-neutral emission scenario(SSP1-2.6),the land sink becomes 0.47-0.57 Pg C a^(-1) at 2060,including the contributions of 0.12 Pg C a^(-1) by conservative forestation,0.07 Pg C a^(-1) by ozone pollution control,and 0.06-0.16 Pg C a^(-1) by 20%litter removal over planted *** sink can mitigate 90%-110% of the residue anthropogenic carbon emissions in 2060,providing a solid foundation for the carbon neutrality in China.
The rapid development of Large Language Models (LLMs) creates new opportunities for recommender systems, especially by exploiting the side information (e.g., descriptions and analyses of items) generated by these mode...
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In this paper, a beam steering patch antenna with two parasitic array elements loaded with shorting vias for sub-6 GHz 5G applications is proposed. Two parasitic elements placed at the upper left and below right of th...
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ISBN:
(数字)9798350314755
ISBN:
(纸本)9798350314762
In this paper, a beam steering patch antenna with two parasitic array elements loaded with shorting vias for sub-6 GHz 5G applications is proposed. Two parasitic elements placed at the upper left and below right of the circular driven patch. The mutual coupling effect between both driven and parasitic has managed to steer the beam. The parasitic elements electrically shorten the ground plane through shorting vias. In simulation, shorting vias is like an artificial switch that connects parasitic element to ground plane to change its effective electrical length hence forming a reflector and director. Based on the condition of the shorting vias either ON/OFF, the proposed antenna is able to steer the main beam in three different directions to ±23° and 0° at the resonant frequency of 3.5 GHz with maximum gain of 7.54 dBi.
This paper proposes the partially parallel low-complexity Chase (PPLCC) decoding for Reed-Solomon (RS) codes. With the formulated test-vectors, the Kötter’s interpolation based Chase decoding events are processe...
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ISBN:
(纸本)9781665459761
This paper proposes the partially parallel low-complexity Chase (PPLCC) decoding for Reed-Solomon (RS) codes. With the formulated test-vectors, the Kötter’s interpolation based Chase decoding events are processed in a partially parallel manner, maintaining both low decoding complexity and latency. The decoding will be terminated once a codeword candidate that satisfies the maximum-likelihood (ML) criterion is found. Furthermore, a skipping rule is introduced to reduce the decoding complexity by assessing the Hamming distance between an estimated codeword and the test-vector. Simulation results show that the proposed PPLCC decoding achieves an improved tradeoff between decoding complexity and latency over several benchmark decoding schemes.
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