检索结果-内蒙古大学图书馆

optimization algorithm AND ITS CONVERGENCE FOR MICROBIAL CONTINUOUS FERMENTATION

ROCKY MOUNTAIN JOURNAL OF MATHEMATICS 2008年第5期38卷 1481-1491页

作者： Li, Xiaohong Feng, Enmin Xu, Zhilong Univ Sci & Technol Liaoning Fac Sci Anshan 114044 Liaoning Peoples R China Dalian Univ Technol Dept Appl Math Dalian 116024 Liaoning Peoples R China Dalian Univ Technol Dept Biotechnol Dalian 116012 Liaoning Peoples R China

Based on the producing 1, 3-propanediol from microorganism continuous fermentation, we study the algorithm and its convergence for the optimal model in this paper. First, taking the zero of the optimality function as the terminal criteria, an algorithm for the discrete time system of the optimal model is given with the step-size determined by Armijo line search and the search direction by gradient method. By the result that the discrete time system converges to the continuous time optimal model, the optimality function of the discrete time system is a consistent approximation to the one of the continuous time optimal model and an algorithm for the optimal model is given too. The convergence of the algorithm is proved. At last, it shows that the optimal model describes the experiment correctly and the algorithm is feasible by comparing the computing value with the dates in laboratory.

关键词： Optimality function optimization algorithm convergence

来源：评论

学校读者我要写书评

暂无评论

optimization algorithm for Task Allocation with Multi-objectives in Collaborative Manufacturing Project

Optimization Algorithm for Task Allocation with Multi-object...

引用

International Conference on Sustainable Construction Materials and Computer Engineering (ICSCMCE 2011)

作者： Wu, Xianjie Cao, Jin-zhu Zhejiang Gongshang Univ Modern Educ Technol Ctr Hangzhou Zhejiang Peoples R China Zhejiang Gongshang Univ Coll Comp & Informat Engn Hangzhou Zhejiang Peoples R China

ISBN: (纸本)9783037852583

In the collaborative manufacturing project, task allocation among cooperative enterprises directly impacts the competition ability of enterprises and the overall economic benefits of the project. Aiming at this problem, a new algorithm is proposed to get the optimal combination of shortest project time, lowest cost and minimum number of selected cooperative enterprises. The algorithm is evaluated with an example and the result shows that the optimization solution can be applied in the actual collaborative projects with good effect.

关键词： Collaborative manufacturing project Cooperative enterprises Task allocation optimization algorithm

来源：评论

学校读者我要写书评

暂无评论

optimization algorithm of Power Marketing AI Response System in the Era of Intelligent Technology 6

Optimization Algorithm of Power Marketing AI Response System...

引用

6th IEEE Advanced Information Technology, Electronic and Automation Control Conference (IEEE IAEAC)

作者： Yu, Liang Lie, Ligang Wang, Zheng Zhang, Yaoren State Grid Beijing Elect Power Co Customer Serv Ctr Beijing 100075 Peoples R China State Grid Beijing Elect Power Co Beijing 100005 Peoples R China

ISBN: (数字)9781665458641

ISBN: (纸本)9781665458641

The intelligent question and answer platform can improve customer satisfaction, strengthen the self-service function of customers, and obtain business information conveniently and quickly. It is an effective means to reduce the company's overall operating costs and an important measure to promote the capacity building of remote service channels. The purpose of this paper is to study the optimization algorithm of the power marketing AI response system based on the era of intelligent technology. Combined with knowledge graph visualization and other technical means, the basic knowledge graph of the power industry is constructed, and an intelligent dialogue system is designed in combination with the constructed knowledge graph to help the power industry's customer service capabilities to improve, knowledge storage, knowledge management and other work to be carried out well. From the perspective of model evaluation indicators, this paper chooses the accuracy of the model as an important indicator to measure the efficiency of the model. In the relational classification model of information extraction, the comprehensive indicators of precision, recall, and F1 value of the BERT-BiLSTM-CRF knowledge extraction model are better than word embedding + BiLSTM + CRF.

关键词： Intelligent Technology Power Marketing AI Response System optimization algorithm

来源：评论

学校读者我要写书评

暂无评论

optimization algorithm based on Artificial Life algorithm and Particle Swarm optimization

Optimization Algorithm based on Artificial Life Algorithm an...

引用

2nd International Conference on Information and Computing Science

作者： Gu, Yun-li Xu, Xin Du, Jie Qian, Huan-yan Nanjing Univ Informat Sci & Technol Inst Comp & Software Nanjing 210044 Peoples R China Nanjing Univ Sci & Technol Sch Comp Sci & Technol Nanjing 210094 Peoples R China

ISBN: (纸本)9780769536347

An optimization algorithm based on artificial life algorithm and particle swarm optimization (PSO) is proposed. The optimization includes two stages. In the first stage, artificial life system is created. As artificial life organisms have a sensing system, they can find the resource they want and metabolize it. The micro-interaction with each other in the artificial life's group results in emergent colonization in the whole system. The emergent colonization of artificial life system is used to provide an excellent initial position for PSO, and PSO is further used to rind the optimal solution in the second stage. Compared with ordinary artificial life based optimization approach and ordinary PSO approach by simulation, in the newly designed method, the performances of searching speed and optimization solution accuracy are improved.

关键词： artificial life particle swarm optimization optimization algorithm emergent colonization

来源：评论

学校读者我要写书评

暂无评论

optimization algorithm for IPTV Video Service Delivery over SDN Using MEC Technology 18th

Optimization Algorithm for IPTV Video Service Delivery over ...

引用

18th International Conference on Next Generation Teletraffic and Wired/Wireless Advanced Networks and Systems (NEW2AN) / 11th Conference on Internet of Things and Smart Spaces (ruSMART)

作者： Manariyo, Steve Khakimov, Abdukodir Pyatkina, Darya Muthanna, Ammar St Petersburg State Univ Telecommun 22 Prospekt Bolshevikov St Petersburg 193232 Russia RUDN Univ Peoples Friendship Univ Russia 6 Miklukho Maklaya St Moscow 117198 Russia

ISBN: (纸本)9783030011680;9783030011673

Management of video content distribution through files allocation or caching in content delivery networks with some degree of reliable security measures is representing a big issue in video service delivery and user's requirements for quality of experience provision are constantly tightened. Operators are looking for new ways to efficiently deliver video content to specific customers or classes of customers, which allow the transfer of large amounts of traffic with the appropriate quality of experience. Mobile Edge Computing (MEC), initiated as an Industry Specification Group (ISG) within ETSI, is quickly gaining traction as a disruptive technology that promises to bring applications and content closer to the network edge, a move that will reduce latency and make new services optimization possible. The aim of this thesis is to provide optimization algorithms for accessing IPTV video services in managed way over Software-defined Networking (SDN) to meet the high Quality of service (QoS) reducing network latency and, ultimately, improving the end consumer's quality of experience (QoE). We also show the positive impact of SDN network using our algorithm noticeably reducing video delay.

关键词： IPTV Video traffic Software-Defined network (SDN) Mobile Edge Computing (MEC) Quality of Experience (QoE) optimization algorithm

来源：评论

学校读者我要写书评

暂无评论

optimization algorithm of Time Synchronization Network Monitoring Based on Variational Autoencoder 5

Optimization Algorithm of Time Synchronization Network Monit...

引用

5th International Conference on Computational Intelligence and Applications (ICCIA)

作者： Lv, Bo Pan, Feng Miao, Xinyu Hu, Changjun China Acad Informat & Commun Inst Technol & Stand Beijing Peoples R China

ISBN: (纸本)9781728160429

In this paper an optimization algorithm for time synchronization in telecommunication network is proposed based on VAE(Variational Auto Encoder)framework. Firstly features are represented in latent space under proposed framework while performance of synchronization network is measured and evaluated. Secondly optimization algorithm is further designed with which feature of abnormal samples and benchmark are adaptively merged for smooth adjustment with low risk in practical network operation. Meanwhile considering the characteristics as domain knowledge of synchronization network, a novel metric is adopted to reduce the fluctuation of adjustment. The simulation results verified that performance of synchronization network is significantly improved by optimization templates reconstructed through decoding part of VAE model. It is implied that prior knowledge of synchronization in latent space is introduced with certain interpret-ability for assessment of monitoring performance while optimization adjustment can be properly operated through novel metric proposed in this algorithm.

关键词： telecommunication time synchronization machine learning variational autoencoder optimization algorithm

来源：评论

学校读者我要写书评

暂无评论

optimization algorithm of Crack Initial Angle Using the Extended Finite Element Method

Optimization Algorithm of Crack Initial Angle Using the Exte...

引用

2nd International Conference on Advances in Computational Modeling and Simulation (ACMS 2013)

作者： Su, Yi Wang, Shengnan Du, Yong'en Northwestern Polytech Univ Sch Aeronaut Xian 710072 Peoples R China

ISBN: (纸本)9783037859063

The extended finite element method (XFEM) allows the entire crack to be represented independently from the mesh, which means re-mesh is unnecessary in model crack growth, reduces the computational time drastically. However, fatigue crack growth simulation has been computationally challenged by lots of analog computations in crack growth. Therefore, a new reanalysis algorithm based on incremental Cholesky factorization is derived. In this paper, we consider a variant of XFEM in which an exponent discontinuous function is used to simulate the crack through unit. Then the corresponding formula of XFEM with inclusion and crack problem with a new reanalysis algorithm is derived. In the end, we use the new reanalysis algorithm and an optimization algorithm to predict the angle of crack initiation from a hole in a plate with inclusion. It shows that the algorithm is effective.

关键词： The extended finite element method(XFEM) Cholesky factorization reanalysis algorithm optimization algorithm

来源：评论

学校读者我要写书评

暂无评论

optimization algorithm under Relaxed Constraints for Sequencing Component Pick and Placement in PCB Assembly 35

Optimization Algorithm under Relaxed Constraints for Sequenc...

引用

35th Chinese Control Conference (CCC)

作者： Liu, Haiming Yuan, Peng Hu, Yueming Liu, Weidong South China Univ Technol Sch Automat Sci & Engn Guangzhou 510640 Guangdong Peoples R China

ISBN: (纸本)9789881563910

Many optimization algorithms proposed for PCB assembly problem had a common problem that they introduced strong constraints, which made optimization performance deteriorate in practice. Focusing on component pick and placement sequencing problem for multi-head placement machine in PCB assembly, this paper discuss some strong constraints involved in related optimization problem and propose an algorithm under relaxed constraints for problem solving. Certain strong constraints were relaxed for the algorithm to expand solution space, making it possible to find better solutions. Under such relaxation, an optimization algorithm based on scatter search (SS) method was constructed to solve the component sequencing problem, and steps of algorithm are detailed in the paper. Numerical experiments were made to conduct an evaluation for the proposed algorithm, along with a comparison with two heuristic algorithms proposed in other literatures. The results show that the proposed algorithm has better performance in optimization results and can shorten PCB assembly time of the placement machine effectively.

关键词： PCB assembly optimization algorithm relaxed constraint scatter search

来源：评论

学校读者我要写书评

暂无评论

optimization algorithm for axial multistage compressor workflow

Optimization algorithm for axial multistage compressor workf...

引用

AIAA Propulsion and Energy Forum

作者： Popov, Grigorii M. Baturin, Oleg, V Goriachkin, Evgenii S. Kolmakova, Daria A. Volkov, Andrei A. Egorov, Igor N. Samara Natl Res Univ Dept Aircraft Engine Theory Samara 443086 Russia Samara Natl Res Univ Res & Educ Ctr Gas Dynam Studies Samara 443086 Russia Moscow Aviat Inst Moscow 125993 Russia

ISBN: (数字)9781624106026

ISBN: (纸本)9781624106026

In the presented work, an algorithm was developed for finding the optimal configuration of the blades of multi-stage axial compressors using 3D CFD modeling as the main tool and using commercial optimization programs. When developing the algorithm, special attention was paid to the development of a method for parameterizing the shape of the blade and a program based on it, which allow you to automatically change the shape of the blade of the axial compressor. They were used by the authors during optimization as a tool that converts variable parameters into the "new" blade geometry. The created algorithm can be used to improve the basic parameters of the compressor (efficiency, pressure ratio, mass flow rate, etc.) due to the correction of the shape of the blade profiles and their position relative to each other. In this case, the algorithm considers the possible presence of various constraints.

关键词： Multistage Axial Compressors optimization algorithm Mass Flow Rate Mathematical optimization Particle Swarm optimization Gas Turbine Engines Mathematical Models Genetic algorithm Fuel Consumption Numerical Modeling

来源：评论

学校读者我要写书评

暂无评论

optimization algorithm of Resource Allocation Based on Fuzzy Assessment Method

Optimization Algorithm of Resource Allocation Based on Fuzzy...

引用

International Conference on Mechatronics Engineering and Computing Technology (ICMECT)

作者： Li, Yaolei Wang, Congxian Li, Zhenjia Hebei Inst Phys Educ Fac Sports Training Shijiazhuang 050041 Peoples R China Heibei jiaotong Vocat & Tech Coll Dept Basic Courses Sports Teaching & Res Sect Shijiazhuang 050091 Peoples R China

ISBN: (纸本)9783038351153

The technology teaching of university basketball general course is a focus which all sectors of the community should pay more attention. How will the technology teaching of university basketball general course carry out optimization of integration, to play the biggest role, is also the key point of this paper. This paper from the main content of post-modern education and university basketball general course technology teaching, to understand the current situation of university basketball education, and construct basketball general course technology evaluation system. At the same time, using fuzzy evaluation method to do statistical analysis on the situation of basketball general course technology education, and in a targeted manner to set up teaching mode of basketball general course technology under Post-modern educational perspective, use the society, network, universities' and other resources effectively, to sharing the resources, realize technology education and the optimization configuration of resource.

关键词： Fuzzy evaluation Technical model optimization algorithm Weighting factor Project matrix

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：