Actor-critic algorithm with incremental dual natural policy gradient by Peng ZHANG, Quan LIU, Shan ZHONG, Jian-wei ZHAI, Wei-sheng QIAN

“…The existed algorithms for continuous action space failed to consider the way of selecting optimal action and utilizing the knowledge of the action space,so an efficient actor-critic algorithm was proposed by improving the natural gradient.The objective of the proposed algorithm was to maximize the expected return.Upper and the lower bounds of the action range were weighted to obtain the optimal action.The two bounds were approximated by linear function.Afterward,the problem of obtaining the optimal action was transferred to the learning of double policy parameter vectors.To speed the learning,the incremental Fisher information matrix and the eligibilities of both bounds were designed.At three reinforcement learning problems,compared with other representative methods with continuous action space,the simulation results show that the proposed algorithm has the advantages of rapid convergence rate and high convergence stability.…”
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Algorithm of Adaptive Bit Allocation Wavelet Transform Audio Coding by Ma HongfeiMa Hongfei:associate professor, is with the Information Science Institute, Xidian University, Xi’an, China Fan ChangxinFan Changxin:professor, IEEE fellow, is with the Information Science Institute, Xidian University, Xi’an, China Song Guo

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Improved sphere decoding algorithm based on ±1 quadratic programming by LI Zi1, CAI Yue-ming1

“…With the ±1 quadratic programming of the MIMO detection,the necessary conditions for MIMO detection op-timal solution were derived.An improved sphere decoding algorithm based on these necessary conditions was proposed.The algorithm prunes redundant nodes by necessary conditions based on the origin sphere decoding.With this pruning strategy,the complexity of algorithm is reduced significantly,while holding the bit error rate performance.…”
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SDN hypervisor oriented vSDN controller placement algorithm by Xiaodong DONG, Zhiqiang GUO, Sheng CHEN, Xiaobo ZHOU, Heng QI, Keqiu LI

“…With the development of the future internet technology,the future network architecture which utilizes network virtualization as a tool to solve the rigidity of traditional network becomes the main stream.As a new network architecture,software defined networking provides an effective network virtualization solution.Firstly,related technology of network virtualization in SDN was concluded,distinguished differences between deploying virtual network in SDN and traditional network was compared,and aiming at the virtual network mapping problem in SDN virtualization platform,a latency sensitive SDN virtualization controller placement algorithm.At last,experiment results show that the algorithm not only can assure the delay between SDN controllers and switches in an acceptable range,but also improve the utilization efficiency of network resources.…”
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Peningkatan Kinerja Jaringan Dengan Menggunakan Multi-Rule Algorithm by Tanwir Tanwir, Parma Hadi Rantelinggi, Sri Widiastuti

“…To overcome this problem a combination of Multi-Rule Algorithm cache replacement algorithms is performed, in the form of a double combination algorithm FIFO-LRU and triple FIFO-LRU-LFU. …”
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Inversion of Bubble Size Distribution Based on Whale Optimization Algorithm by Zhenzhong Lu, Ziqi Hu, Lin Ma, Shangtao Huang, Tao Peng, Min Liu, Biao Han, Jiali Liao, Zihao Wang, Yanling Sun

Subjects: “…Whale optimization algorithm…”
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Image Blocking Encryption Algorithm Based on Laser Chaos Synchronization by Shu-Ying Wang, Jian-Feng Zhao, Xian-Feng Li, Li-Tao Zhang

“…The experimental results show that the encryption algorithm image has high security and good antijamming performance.…”
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Timeout threshold estimation algorithm in mimic multiple executors architecture by Delei NIE, Obo ZHA, Chong WANG, Xin WANG, Binghao YAN

“…Aiming at the problem that the current timeout strategy algorithm is difficult to cope with the violent situation of task volume,a timeout threshold prediction algorithm based on equivalent proportional execution time applied to the mimetic defense architecture system is proposed.The algorithm utilizes the principle that the execution time of multiple functional equivalent executable tasks in the mimetic defense architecture is positively related,predicts the task execution time and sets a reasonable timeout threshold.The simulation results show that the proposed algorithm can dynamically predict and set the timeout threshold for different task situations,which effectively improves the timeout judgment efficiency,especially for scenarios with dramatic changes in workload.…”
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RANSAC based robust localization algorithm for visual sensor network by Bo ZHANG, Hai-yong LUO, Ji-wei LIU, Fang ZHAO

“…Due to node failures or environmental changes,observed data on the target will be error in visual sensor network,so the least squares based multi-vision localization algorithm won’t be accurate.A centralized RANSAC based robust localization method was proposed,which can remove the error data and improve the positioning accuracy.Furthermore,to address this issue,energy imbalance of network nodes in centralized RANSAC where all computing load is executed in one single node,a robust localization algorithm based on distributed RANSAC was also proposed,which can distribute a large number of iterative calculations into each node averagely to ensure the network balance on calculation and energy without affecting the robustness.Finally,through comparing experiments on no-RANSAC,cen-RANSAC and dis-RANSAC,it’s verified that this algorithm can obtain robust and good positioning results in a predetermined probability,and the time complexity was analyzed via experiment.…”
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Study on event routing algorithms for publish/subscribe communication systems by XUE Xiao-ping 1, WANG Xiao-ping 2, ZHANG Si-dong1, ZHANG Hong-ke1

“…The architectures of publish/subscribe communication systems and various routing mechanisms and algorithms were discussed and reviewed,including the basic methods of finding communication objects,routes optimization and routes for supporting topology change and client mobile,etc; The routing methods of famous P/S systems were compared and analyzed; On the perspective of the system scalability,the direction of further research was proposed finally.…”
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Research on PCB defect detection algorithm based on LPCB-YOLO by Haiyan Zhang, Haiyan Zhang, Yazhou Li, Yazhou Li, Dipu Md Sharid Kayes, Dipu Md Sharid Kayes, Zhaoyu Song, Zhaoyu Song, Yuanyuan Wang, Yuanyuan Wang

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Social algorithms of the Chinese company Huawei Technologies management model by N. Yu. Paudyal

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Fast view synthesis optimization algorithm based on texture smoothness by Huan DOU, Ke-bin JIA, Rui-lin CHEN, Yun-zhi XIAO, Qiang WU

“…A fast algorithm was proposed in order to reduce the v ew synthesis optimization (VSO) process in depth cod-ing for 3D-HEVC based on texture map smoothness.With the coding nformation derived from texture video sequences,the pixel regularity of smooth texture region was analyzed to set the skip rule using the properties of intra DC prediction and statistical methods.Then the depth regions corres to the flat texture map regions could be extracted and the VSO process of pixels belonging to this type of depth could be skipped.Experimental results show the effective-ness of the proposed algorithm.…”
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A Novel Intelligent Recommendation Algorithm Based on Mass Diffusion by Guanglai Tian, Shuang Zhou, Gengxin Sun, Chih-Cheng Chen

“…Social recommendation algorithm is a common tool for recommending interesting or potentially useful items to users amidst the sea of online information. …”
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Research on Path Planning for Tetrahedral Robots Based on A* Algorithm by Wang Yubin, Shen Zhenjun, Wang Yuchen, Chen Dongdong

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Improved satellite resource allocation algorithm based on DRL and MOP by Pei ZHANG, Shuaijun LIU, Zhiguo MA, Xiaohui WANG, Junde SONG

“…In view of the multi-objective optimization (MOP) problem of sequential decision-making for resource allocations in multi-beam satellite systems,a deep reinforcement learning(DRL) based DRL-MOP algorithm was proposed to improve the system performance and user satisfaction degree.With considering the normalized weighted sum of spectrum efficiency,energy efficiency,and satisfaction index as the optimization goal,the dynamically changing system environments and user arrival model were built by the proposed algorithm,and the optimization of the accumulative performance in satellite systems based on DRL and MOP was realized.Simulation results show that the proposed algorithm can solve the MOP problem with rapid convergence ability and low complexity,and it is obviously superior to other algorithms in terms of system performance and user satisfaction optimization.…”
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Vehicle Type Recognition Algorithm Based on Improved Network in Network by Erxi Zhu, Min Xu, De Chang Pi

“…Vehicle type recognition algorithms are broadly used in intelligent transportation, but the accuracy of the algorithms cannot meet the requirements of production application. …”
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Moving anchor node localization algorithm based on network connectivity by Ying LIU, Zhi-hong QIAN

“…In order to better solve the contradiction between precision of localization and the number of anchor nodes in wireless sensor network,a mobile anchor node localization technology based on connectivity was proposed.First,the coverage characteristic of the network nodes was analyzed,and a critical value was found between the mobile step and the anchor node communication radius,mobile anchor nodes＇ coverage characteristic would change when near this critical value.Second,a mobile anchor node followed a planning path to form a positioning area seamless coverage was used.Finally,when there was no need for high-precision technology,node position would been estimated according with the connectivity of the network and the receiving information of the node.The simulation results show that the proposed algorithm can realize coarse-grained localization,and paths perform complete localization.…”
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Improved FFT-based alpha-stable density approximation algorithm by BAI Yun, YU Li, ZHU Guang-xi, LI Li

“…Approximation of density of α-stable process is an elementary works in modeling network flow using α-stable process.Combining the mathematical properties of characteristic function of α-stable process with the traditional approximating algorithm,an improved FFT-based algorithm was proposed.The improved algorithm has 2 noticeable features: automatically choosing the sampling space and sampling interval,importing frequency expansion.Experiments show that it can decrease calculation complexity and effectively control computation error.…”
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An Improved Ant Colony Broadcasting Algorithm for Wireless Sensor Networks by Nan Jiang, Rigui Zhou, Shuqun Yang, Qiulin Ding

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