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A method for power suppliers’optimal cooperative bidding strategies considering network losses 被引量:2
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作者 Guanghui Sun Xiaowei Wang +3 位作者 Libo Yang Bin Ma Lei He Rongquan Zhang 《Global Energy Interconnection》 2020年第4期335-345,共11页
The bidding strategies of power suppliers to maximize their interests is of great importance.The proposed bilevel optimization model with coalitions of power suppliers takes restraint factors into consideration,such a... The bidding strategies of power suppliers to maximize their interests is of great importance.The proposed bilevel optimization model with coalitions of power suppliers takes restraint factors into consideration,such as operating cost reduction,potential cooperation,other competitors’bidding behavior,and network constraints.The upper model describes the coalition relationship between suppliers,and the lower model represents the independent system operator’s optimization without network loss(WNL)or considering network loss(CNL).Then,a novel algorithm,the evolutionary game theory algorithm(EGA)based on a hybrid particle swarm optimization and improved firefly algorithm(HPSOIFA),is proposed to solve the bi-level optimization model.The bidding behavior of the power suppliers in equilibrium with a dynamic power market is encoded as one species,with the EGA automatically predicting a plausible adaptation process for the others.Individual behavior changes are employed by the HPSOIFA to enhance the ability of global exploration and local exploitation.A novel improved firefly algorithm(IFA)is combined with a chaotic sequence theory to escape from the local optimum.In addition,the Shapley value is applied to the profit distribution of power suppliers’cooperation.The simulation,adopting the standard IEEE-30 bus system,demonstrates the effectiveness of the proposed method for solving the bi-level optimization problem. 展开更多
关键词 Bidding strategy COOPERATION network loss Improved firefly algorithm Hybrid optimization
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A new network losses allocation method in deregulated environment
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作者 王承民 侯志俭 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2005年第1期61-66,共6页
Network losses allocation is one of the major problems in the market environment. The quadric function of the injected nodal power is used in this paper as a representation for network losses, which are allocated fair... Network losses allocation is one of the major problems in the market environment. The quadric function of the injected nodal power is used in this paper as a representation for network losses, which are allocated fairly using the called market equilibrium principle while the bidding curves are corrected. The power market equilibrium is simulated as three different models that can be solved simply by the optimal power flow algorithm combining the generation scheduling problem with network losses allocation. The case study is made at an IEEE-30 nodes system and a perfect result is proved in this paper. 展开更多
关键词 power market network losses market equilibrium optimal power flow
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Dispersed Wind Power Planning Method Considering Network Loss Correction with Cold Weather
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作者 Hanpeng Kou Tianlong Bu +2 位作者 Leer Mao Yihong Jiao Chunming Liu 《Energy Engineering》 EI 2024年第4期1027-1048,共22页
In order to play a positive role of decentralised wind power on-grid for voltage stability improvement and loss reduction of distribution network,a multi-objective two-stage decentralised wind power planning method is... In order to play a positive role of decentralised wind power on-grid for voltage stability improvement and loss reduction of distribution network,a multi-objective two-stage decentralised wind power planning method is proposed in the paper,which takes into account the network loss correction for the extreme cold region.Firstly,an electro-thermal model is introduced to reflect the effect of temperature on conductor resistance and to correct the results of active network loss calculation;secondly,a two-stage multi-objective two-stage decentralised wind power siting and capacity allocation and reactive voltage optimisation control model is constructed to take account of the network loss correction,and the multi-objective multi-planning model is established in the first stage to consider the whole-life cycle investment cost of WTGs,the system operating cost and the voltage quality of power supply,and the multi-objective planning model is established in the second stage.planning model,and the second stage further develops the reactive voltage control strategy of WTGs on this basis,and obtains the distribution network loss reduction method based on WTG siting and capacity allocation and reactive power control strategy.Finally,the optimal configuration scheme is solved by the manta ray foraging optimisation(MRFO)algorithm,and the loss of each branch line and bus loss of the distribution network before and after the adoption of this loss reduction method is calculated by taking the IEEE33 distribution system as an example,which verifies the practicability and validity of the proposed method,and provides a reference introduction for decision-making for the distributed energy planning of the distribution network. 展开更多
关键词 Decentralised wind power network loss correction siting and capacity determination reactive voltage control two-stage model manta ray foraging optimisation algorithm
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Water Supply Network Losses in Jordan 被引量:1
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作者 Nadhir Al-Ansari N. Alibrahiem +1 位作者 M. Alsaman Sven Knutsson 《Journal of Water Resource and Protection》 2014年第2期83-96,共14页
Water supply network losses are an international problem especially in countries suffering from water scarcity like Jordan. Jordan is one of the poorest countries in its water resources and it is estimated to be below... Water supply network losses are an international problem especially in countries suffering from water scarcity like Jordan. Jordan is one of the poorest countries in its water resources and it is estimated to be below the water poverty line. Jordan is located in the Middle East and has a surface area of approximately 90,000 km2. Its population is around 6.3 million and it is estimated that the population will be 7.8 million in 2022. The gap between water supply and demand is widening due to development and a relatively high population growth rate. In addition, global climate change is expected to intensify the water shortage problem in Jordan. Thirteen years of complete records obtained from the Ministry of Water and Irrigation were analyzed. According to these records, water losses in Jordan reach about 50%. In view of the evaluation of the data and the case study conducted in this research, it is believed that Jordan can overcome the water shortage problem by adopting a water demand management strategy. In this context, efforts should be focused on reducing water losses. If this is achieved, it will save huge quantities of water and revenue. 展开更多
关键词 JORDAN WATER Supply network WATER lossES Neamie
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Traffic dynamics considering packet loss in finite buffer networks 被引量:2
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作者 Jie Chen Jin-Yong Chen +1 位作者 Ming Li Mao-Bin Hu 《Chinese Physics B》 SCIE EI CAS CSCD 2019年第4期433-438,共6页
In real complex systems, the limited storage capacity of physical devices often results in the loss of data. We study the effect of buffer size on packet loss threshold in scale-free networks. A new order parameter is... In real complex systems, the limited storage capacity of physical devices often results in the loss of data. We study the effect of buffer size on packet loss threshold in scale-free networks. A new order parameter is proposed to characterize the packet loss threshold. Our results show that the packet loss threshold can be optimized with a relative small buffer size. Meanwhile, a large buffer size will increase the travel time. Furthermore, we propose a Buffered-Shortest-Path-First(BSPF) queuing strategy. Compared to the traditional First-In-First-Out(FIFO) strategy, BSPF can not only increase the packet loss threshold but can also significantly decrease the travel length and travel time in both identical and heterogeneous node capacity cases. Our study will help to improve the traffic performance in finite buffer networks. 展开更多
关键词 FINITE BUFFER networkS loss THRESHOLD QUEUING strategy
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Fault Tolerant Control for Networked Control Systems with Packet Loss and Time Delay 被引量:5
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作者 Ming-Yue Zhao He-Ping Liu +1 位作者 Zhi-Jun Li De-Hui Sun 《International Journal of Automation and computing》 EI 2011年第2期244-253,共10页
In this paper,a fault tolerant control with the consideration of actuator fault for a networked control system (NCS) with packet loss is addressed.The NCS with data packet loss can be described as a switched system ... In this paper,a fault tolerant control with the consideration of actuator fault for a networked control system (NCS) with packet loss is addressed.The NCS with data packet loss can be described as a switched system model.Packet loss dependent Lyapunov function is used and a fault tolerant controller is proposed respectively for arbitrary packet loss process and Markovian packet loss process.Considering a controlled plant with external energy-bounded disturbance,a robust H ∞ fault tolerant controller is designed for the NCS.These results are also expanded to the NCS with packet loss and networked-induced delay.Numerical examples are given to illustrate the effectiveness of the proposed design method. 展开更多
关键词 Fault tolerant control networked control system (NCS) packet loss actuator fault time delay.
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Loss forecasting of earthquake fire based on radial basis function network
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作者 王海荣 王明学 《Acta Seismologica Sinica(English Edition)》 CSCD 2007年第1期98-104,共7页
According to complexity and multiplicity of the post-earthquake fire, the loss forecasting model of earthquake fire is established by using radial basis function neural network with adaptability, self-learning and fau... According to complexity and multiplicity of the post-earthquake fire, the loss forecasting model of earthquake fire is established by using radial basis function neural network with adaptability, self-learning and fault-tolerant based on the historical information. The applicability and validity of the model is manifested through testing and discussion. A simple and available method is provided for the prediction of losses of other natural disaster. 展开更多
关键词 RBF neural network earthquake fire loss forecasting
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The Actuarial Data Intelligent Based Artificial Neural Network (ANN) Automobile Insurance Inflation Adjusted Frequency Severity Loss Reserving Model
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作者 Brighton Mahohoho 《Open Journal of Statistics》 2024年第5期634-665,共32页
This study proposes a novel approach for estimating automobile insurance loss reserves utilizing Artificial Neural Network (ANN) techniques integrated with actuarial data intelligence. The model aims to address the ch... This study proposes a novel approach for estimating automobile insurance loss reserves utilizing Artificial Neural Network (ANN) techniques integrated with actuarial data intelligence. The model aims to address the challenges of accurately predicting insurance claim frequencies, severities, and overall loss reserves while accounting for inflation adjustments. Through comprehensive data analysis and model development, this research explores the effectiveness of ANN methodologies in capturing complex nonlinear relationships within insurance data. The study leverages a data set comprising automobile insurance policyholder information, claim history, and economic indicators to train and validate the ANN-based reserving model. Key aspects of the methodology include data preprocessing techniques such as one-hot encoding and scaling, followed by the construction of frequency, severity, and overall loss reserving models using ANN architectures. Moreover, the model incorporates inflation adjustment factors to ensure the accurate estimation of future loss reserves in real terms. Results from the study demonstrate the superior predictive performance of the ANN-based reserving model compared to traditional actuarial methods, with substantial improvements in accuracy and robustness. Furthermore, the model’s ability to adapt to changing market conditions and regulatory requirements, such as IFRS17, highlights its practical relevance in the insurance industry. The findings of this research contribute to the advancement of actuarial science and provide valuable insights for insurance companies seeking more accurate and efficient loss reserving techniques. The proposed ANN-based approach offers a promising avenue for enhancing risk management practices and optimizing financial decision-making processes in the automobile insurance sector. 展开更多
关键词 Artificial Neural network Actuarial loss Reserving Machine Learning Intelligent Model
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Prediction Model of Soil Nutrients Loss Based on Artificial Neural Network
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作者 WANG Zhi-liang,FU Qiang,LIANG Chuan (Hydroelectric College,Sichuan University) 《Journal of Northeast Agricultural University(English Edition)》 CAS 2001年第1期37-42,共6页
On the basis of Artificial Neural Network theory, a back propagation neural network with one middle layer is building in this paper, and its algorithms is also given, Using this BP network model, study the case of Mal... On the basis of Artificial Neural Network theory, a back propagation neural network with one middle layer is building in this paper, and its algorithms is also given, Using this BP network model, study the case of Malian-River basin. The results by calculating show that the solution based on BP algorithms are consis- tent with those based multiple - variables linear regression model. They also indicate that BP model in this paper is reasonable and BP algorithms are feasible. 展开更多
关键词 SOIL Prediction Model of Soil Nutrients loss Based on Artificial Neural network
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Model-based predictive controller design for a class of nonlinear networked systems with communication delays and data loss
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作者 安宝冉 刘国平 《Chinese Physics B》 SCIE EI CAS CSCD 2014年第8期211-216,共6页
This paper discusses the model-based predictive controller design of networked nonlinear systems with communica- tion delay and data loss. Based on the analysis of the closed-loop networked predictive control systems,... This paper discusses the model-based predictive controller design of networked nonlinear systems with communica- tion delay and data loss. Based on the analysis of the closed-loop networked predictive control systems, the model-based networked predictive control strategy can compensate for communication delay and data loss in an active way. The designed model-based predictive controller can also guarantee the stability of the closed-loop networked system. The simulation re- suits demonstrate the feasibility and efficacy of the proposed model-based predictive controller design scheme. 展开更多
关键词 communication delays data loss model-based networked predictive control
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Cooperative Loss Recovery for Reliable Multicast in Ad Hoc Networks
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作者 Mengjie HUANG Gang FENG Yide ZHANG 《International Journal of Communications, Network and System Sciences》 2010年第1期72-78,共7页
Providing reliable multicast service is very challenging in Ad Hoc networks. In this paper, we propose an efficient loss recovery scheme for reliable multicast (CoreRM). Our basic idea is to apply the notion of cooper... Providing reliable multicast service is very challenging in Ad Hoc networks. In this paper, we propose an efficient loss recovery scheme for reliable multicast (CoreRM). Our basic idea is to apply the notion of cooperative communications to support local loss recovery in multicast. A receiver node experiencing a packet loss tries to recover the lost packet through progressively cooperating with neighboring nodes, upstream nodes or even source node. In order to reduce recovery latency and retransmission overhead, CoreRM caches not only data packets but also the path which could be used for future possible use to expedite the loss recovery process. Both analytical and simulation results reveal that CoreRM significantly improves the reliable multicast performance in terms of delivery ratio, throughput and recovery latency compared with UDP and PGM. 展开更多
关键词 Ad HOC networks RELIABLE MULTICAST COOPERATIVE Communication loss Recovery
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Stability Analysis of Networked Linear Systems for Multiple Sensors with Different Packet Loss Probabilities
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作者 李建国 陆丽 +1 位作者 蒋赢 潘三博 《Journal of Shanghai Jiaotong university(Science)》 EI 2015年第5期528-534,共7页
A stability problem of the linear networked control systems(NCSs) with multisensor having differen data missing rates is investigated in this paper.Each sensor of the multiple sensor-controller communication channels ... A stability problem of the linear networked control systems(NCSs) with multisensor having differen data missing rates is investigated in this paper.Each sensor of the multiple sensor-controller communication channels is assumed to have an individual stochastic data missing rate.The stochastic data missing is described by a Bernoulli binary distribution.Sufficient conditions are given for the closed-loop linear NCS which is exponentially stable in the mean square sense as the existence of random multiple data missing.The stability problem could b disposed by the MATLAB linear matrix inequality(LMI) tool easily.A simulation case is provided to illustrat the validity of the presented LMI approach. 展开更多
关键词 networked control system(NCS) random multiple packet loss linear matrix inequality(LMI)
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Packet-loss-dependent stabilization of NCSs with network-induced delay and packet dropout 被引量:1
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作者 Yan Song Jingcheng Wang +1 位作者 Yuanhao Shi Chuang Li 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2012年第3期408-413,共6页
This paper is concerned with controller design of net- worked control systems (NCSs) with both network-induced delay and arbitrary packet dropout. By using a packet-loss-dependent Lyapunov function, sufficient condi... This paper is concerned with controller design of net- worked control systems (NCSs) with both network-induced delay and arbitrary packet dropout. By using a packet-loss-dependent Lyapunov function, sufficient conditions for state/output feedback stabilization and corresponding control laws are derived via a switched system approach. Different from the existing results, the proposed stabilizing controllers design is dependent on the packet loss occurring in the last two transmission intervals due to the network-induced delay. The cone complementary lineara- tion (CCL) methodology is used to solve the non-convex feasibility problem by formulating it into an optimization problem subject to linear matrix inequality (LMI) constraints. Numerical examples and simulations are worked out to demonstrate the effectiveness and validity of the proposed techniques. 展开更多
关键词 networked control systems (NCSs) network-induced delay packet dropout packet-loss-dependent cone complemen- tary linearation (CCL).
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Prediction of Pitting Corrosion Mass Loss for 304 Stainless Steel by Image Processing and BP Neural Network
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作者 ZHANG Wei LIANG Cheng-hao 《Journal of Iron and Steel Research International》 SCIE CAS CSCD 2005年第6期59-62,共4页
Image processing technique was employed to analyze pitting corrosion morphologies of 304 stainless steel exposed to FeCl3 environments. BP neural network models were developed for the prediction of pitting corrosion m... Image processing technique was employed to analyze pitting corrosion morphologies of 304 stainless steel exposed to FeCl3 environments. BP neural network models were developed for the prediction of pitting corrosion mass loss using the obtained data of the total and the average pit areas which were extracted from pitting binary image. The results showed that the predicted results obtained by the 2-5-1 type BP neural network model are in good agreement with the experimental data of pitting corrosion mass loss. The maximum relative error of prediction is 6.78%. 展开更多
关键词 BP neural network image processing pitting corrosion mass loss PREDICTION
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Application of DSAPSO Algorithm in Distribution Network Reconfiguration with Distributed Generation 被引量:1
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作者 Caixia Tao Shize Yang Taiguo Li 《Energy Engineering》 EI 2024年第1期187-201,共15页
With the current integration of distributed energy resources into the grid,the structure of distribution networks is becoming more complex.This complexity significantly expands the solution space in the optimization p... With the current integration of distributed energy resources into the grid,the structure of distribution networks is becoming more complex.This complexity significantly expands the solution space in the optimization process for network reconstruction using intelligent algorithms.Consequently,traditional intelligent algorithms frequently encounter insufficient search accuracy and become trapped in local optima.To tackle this issue,a more advanced particle swarm optimization algorithm is proposed.To address the varying emphases at different stages of the optimization process,a dynamic strategy is implemented to regulate the social and self-learning factors.The Metropolis criterion is introduced into the simulated annealing algorithm to occasionally accept suboptimal solutions,thereby mitigating premature convergence in the population optimization process.The inertia weight is adjusted using the logistic mapping technique to maintain a balance between the algorithm’s global and local search abilities.The incorporation of the Pareto principle involves the consideration of network losses and voltage deviations as objective functions.A fuzzy membership function is employed for selecting the results.Simulation analysis is carried out on the restructuring of the distribution network,using the IEEE-33 node system and the IEEE-69 node system as examples,in conjunction with the integration of distributed energy resources.The findings demonstrate that,in comparison to other intelligent optimization algorithms,the proposed enhanced algorithm demonstrates a shorter convergence time and effectively reduces active power losses within the network.Furthermore,it enhances the amplitude of node voltages,thereby improving the stability of distribution network operations and power supply quality.Additionally,the algorithm exhibits a high level of generality and applicability. 展开更多
关键词 Reconfiguration of distribution network distributed generation particle swarm optimization algorithm simulated annealing algorithm active network loss
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基于改进YOLOv5s的椰子轻量化检测方法
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作者 杨孟杰 毛鹏军 +2 位作者 王俊 倪培龙 王宁 《农机化研究》 北大核心 2026年第1期190-198,共9页
针对当前旋翼无人机在空中对椰子进行识别存在模型参数量过大、被遮挡严重、漏检率较高、难以部署到算力有限的无人机嵌入式设备等问题,提出了一种改进YOLOv5s的椰子轻量化检测方法。该方法通过采用MobileNetV3轻量化网络代替原YOLOv5s... 针对当前旋翼无人机在空中对椰子进行识别存在模型参数量过大、被遮挡严重、漏检率较高、难以部署到算力有限的无人机嵌入式设备等问题,提出了一种改进YOLOv5s的椰子轻量化检测方法。该方法通过采用MobileNetV3轻量化网络代替原YOLOv5s的骨干网络,并将坐标注意力机制(CA)模块嵌入轻量化的MobileNetV3骨干网络中;同时,在颈部网络中引入感受野注意力卷积(RFAConv)和重参数化视觉几何模块(RepVGG),扩大感受野和网络结构重参数化;最后,采用Alpha-IoU损失函数来提高不同水平边界框的回归精度,进一步加快了模型的检测速度。实验结果表明,改进后的目标检测算法模型参数量为5.10 M,相较于原YOLOv5s模型降低了29.5%;浮点运算量大小为6.3 G,计算量降低了60.6%,且平均精度均值mAP提升至94.6%。改进后的椰子检测算法在满足轻量化的同时,能更快速、更准确地识别各种环境下的椰子。 展开更多
关键词 无人机 嵌入式设备 YOLOv5s 注意力机制 轻量化网络 损失函数
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分布式电源接入配电网的影响分析与优化
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作者 陈海英 《现代工业工程》 2026年第2期11-14,共4页
为了实现“双碳”目标,分布式电源(Distributed Generation,DG)作为清洁高效的电源持续向配电网渗透,本文以10kV配电网为研究对象,分析DG接入配电网对配电网电压稳定性、网损、继电保护的影响,以数据模型拟合不同DG渗透率下配电网技术... 为了实现“双碳”目标,分布式电源(Distributed Generation,DG)作为清洁高效的电源持续向配电网渗透,本文以10kV配电网为研究对象,分析DG接入配电网对配电网电压稳定性、网损、继电保护的影响,以数据模型拟合不同DG渗透率下配电网技术指标的变化情况,提出基于分层分区控制、网络重构、自适应保护等优化措施。结论表明DG渗透率小于20%时,配电网能够通过正常调节安全运行,WG渗透率达到30%以后存在电压波动5%的状况、网损率增加2~3个百分点的情况,需要从多方面采取优化措施以保证配电网安全经济运行。 展开更多
关键词 分布式电源 配电网 电压波动 网损优化 继电保护 渗透率
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基于多视图邻居对比学习的节点分类方法
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作者 刘俊龙 董继洲 王祎丹 《计算机应用研究》 北大核心 2026年第1期145-152,共8页
随着图对比学习方法在节点分类中的广泛应用,有效缓解了对标签信息的依赖。然而,现有的图对比学习方法在异配图中容易聚合大量异类节点信息,并且图神经网络(graph neural network,GNN)在聚合邻居特征的过程与对比损失之间存在潜在的冲... 随着图对比学习方法在节点分类中的广泛应用,有效缓解了对标签信息的依赖。然而,现有的图对比学习方法在异配图中容易聚合大量异类节点信息,并且图神经网络(graph neural network,GNN)在聚合邻居特征的过程与对比损失之间存在潜在的冲突问题。为缓解该问题,对异配图中节点分类性能下降的原因及图对比学习冲突来源进行了理论分析,提出了一种基于多视图邻居对比学习(multi-view neighbor contrastive learning,MVNCL)的节点分类方法。具体而言,首先引入结构重建的增强策略,在考虑节点间相似性的基础上,结合类别不确定性以更有效地区分硬负样本,从而得到一个连接的节点更倾向于属于相同类别的增强视图,使节点特征能够有效聚合;其次,通过设计原始视图和增强视图邻居对比损失,实现无结构视图与增强视图、原始视图之间的对比,有效缓解了图对比学习中特征聚合与对比目标之间的冲突。通过在五个数据集上开展节点分类实验,结果表明MVNCL方法在同配性较高与异配性较高的数据集中均取得了优于现有方法的性能表现。 展开更多
关键词 图对比学习 节点分类 图神经网络 邻居对比损失
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浅谈停电对线损的影响及治理措施
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作者 钱浩 王邑斌 +2 位作者 褚文杰 赵越 胡俊晨 《科技风》 2026年第1期75-77,共3页
台区配电网停电是电力系统运行过程中常见的事件,对电网的运行效率和线损有直接影响。本文通过理论分析探讨了停电对线损的影响,并提出了相应的降损措施。研究结果表明,在停电过程中,由于时差表、母联倒供、电网结构调整、户变关系切换... 台区配电网停电是电力系统运行过程中常见的事件,对电网的运行效率和线损有直接影响。本文通过理论分析探讨了停电对线损的影响,并提出了相应的降损措施。研究结果表明,在停电过程中,由于时差表、母联倒供、电网结构调整、户变关系切换等因素,导致关口表与用户表之间的数据不同步,进而造成线损显著增加。电力公司应采取综合措施,提高电网的可靠性和运行效率,及时更新配电拓扑图,确保关口表与用户表的数据一致性,减少停电对线损的影响。 展开更多
关键词 配电网 停电 线损 降损
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结合改进VGGNet和Focal Loss的人脸表情识别 被引量:32
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作者 崔子越 皮家甜 +6 位作者 陈勇 杨杰之 鲜焱 吴至友 赵立军 曾绍华 吕佳 《计算机工程与应用》 CSCD 北大核心 2021年第19期171-178,共8页
针对目前表情识别准确率偏低,表情数据集中类别样本类间差异小、类内差异大以及误标注样本产生的误分类等问题,提出了一种结合改进VGGNet和Focal Loss的人脸表情识别算法。在迁移学习的基础上,通过设计新的输出模块对VGGNet模型进行改进... 针对目前表情识别准确率偏低,表情数据集中类别样本类间差异小、类内差异大以及误标注样本产生的误分类等问题,提出了一种结合改进VGGNet和Focal Loss的人脸表情识别算法。在迁移学习的基础上,通过设计新的输出模块对VGGNet模型进行改进,提升了模型的特征提取能力,能够较好地避免过拟合现象;通过设置概率阈值对Focal Loss进行改进,避免误标注样本对模型分类性能产生影响。实验结果表明,该模型在CK+、JAFFE以及FER2013数据集上的识别准确率分别达到了99.68%、97.61%和72.49%,在实际应用中泛化能力突出。 展开更多
关键词 表情识别 深度学习 迁移学习 Focalloss 卷积神经网络
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