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期刊论文 13

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Analysis of dispatching rules in a stochastic dynamic job shop manufacturing system with sequence-dependent

Pankaj SHARMA,Ajai JAIN

《机械工程前沿(英文)》 2014年 第9卷 第4期   页码 380-389 doi: 10.1007/s11465-014-0315-9

摘要:

Stochastic dynamic job shop scheduling problem with consideration of sequence-dependent setup times are among the most difficult classes of scheduling problems. This paper assesses the performance of nine dispatching rules in such shop from makespan, mean flow time, maximum flow time, mean tardiness, maximum tardiness, number of tardy jobs, total setups and mean setup time performance measures viewpoint. A discrete event simulation model of a stochastic dynamic job shop manufacturing system is developed for investigation purpose. Nine dispatching rules identified from literature are incorporated in the simulation model. The simulation experiments are conducted under due date tightness factor of 3, shop utilization percentage of 90 % and setup times less than processing times. Results indicate that shortest setup time (SIMSET) rule provides the best performance for mean flow time and number of tardy jobs measures. The job with similar setup and modified earliest due date (JMEDD) rule provides the best performance for makespan, maximum flow time, mean tardiness, maximum tardiness, total setups and mean setup time measures.

关键词: scheduling     stochastic dynamic job shop     sequence-dependent setup times     dispatching rule     simulation    

Optimization of multi-objective integrated process planning and scheduling problem using a priority based optimization algorithm

Muhammad Farhan AUSAF,Liang GAO,Xinyu LI

《机械工程前沿(英文)》 2015年 第10卷 第4期   页码 392-404 doi: 10.1007/s11465-015-0353-y

摘要:

For increasing the overall performance of modern manufacturing systems, effective integration of process planning and scheduling functions has been an important area of consideration among researchers. Owing to the complexity of handling process planning and scheduling simultaneously, most of the research work has been limited to solving the integrated process planning and scheduling (IPPS) problem for a single objective function. As there are many conflicting objectives when dealing with process planning and scheduling, real world problems cannot be fully captured considering only a single objective for optimization. Therefore considering multi-objective IPPS (MOIPPS) problem is inevitable. Unfortunately, only a handful of research papers are available on solving MOIPPS problem. In this paper, an optimization algorithm for solving MOIPPS problem is presented. The proposed algorithm uses a set of dispatching rules coupled with priority assignment to optimize the IPPS problem for various objectives like makespan, total machine load, total tardiness, etc. A fixed sized external archive coupled with a crowding distance mechanism is used to store and maintain the non-dominated solutions. To compare the results with other algorithms, a C-matric based method has been used. Instances from four recent papers have been solved to demonstrate the effectiveness of the proposed algorithm. The experimental results show that the proposed method is an efficient approach for solving the MOIPPS problem.

关键词: integrated process planning and scheduling (IPPS)     dispatching rules     priority based optimization algorithm     multi-objective optimization    

一种控制规则自调整的模糊控制器

程金,张承慧,夏东伟

《中国工程科学》 2003年 第5卷 第9期   页码 78-81

摘要:

根据模糊控制理论和实际工程经验,设计了一个控制规则能够自调整的模糊控制器,详细介绍了该模糊控制器的控制原理和运行机制,并作出了仿真。该模糊控制器控制精度高,动态和稳态性能均优于传统的PID和基本模糊控制器,且具有较好的鲁棒性和抗扰动能力。仿真和工程实践证明,该模糊控制器具有简便、稳定的优点,且易于工程实现,具有较高的工程应用价值。

关键词: 模糊控制     控制规则自调整     自适应    

Overall HIEs deconstruction method and its application

Li LIN, Chengqi XUE,

《机械工程前沿(英文)》 2009年 第4卷 第4期   页码 466-471 doi: 10.1007/s11465-009-0076-z

摘要: Based on the human interface elements (HIEs) as the emotional carriers, this paper researches the general analysis steps of hierarchical HIEs and puts forward a new systematical deconstruction method for Kansei engineering fields. A mobile phone is taken as the research subject, the emotional design rules are inferred based on the multiple-orientation information of human interfaces, and the emotional change law is grasped from a new perspective. The research on the deconstruction method promotes the study of Kansei engineering and is a significant guide and reference for the theory and practice of related product design fields.

关键词: product design     relationship model     human interface     design rules     emotion    

Space-time evolution rules study on acoustic emission location in rock under cyclic loading

Jiang XU, Shuchun LI, Yunqi TAO, Yongdong JIANG, Xiaojun TANG,

《结构与土木工程前沿(英文)》 2009年 第3卷 第4期   页码 422-427 doi: 10.1007/s11709-009-0056-8

摘要: An acoustic emission (AE) location experiment was performed on sandstone using an advanced AE test system. The space-time evolution rule regarding damage was analyzed under cyclic loading as well as AE. The results show that AE on static loading process is consistent with the damage evolution rule of compression and the elastic-plastic deformation phase; at the beginning of cyclic loading with low duration time and energy, AE events came from a small crack. The location result showed that most events occurred in the core zone forming at the static loading process, and the location points changed slowly. AE energy changed little during the metaphase of cyclic process. There was a modest increase of location points in every cycle. The tendency of steady development could be predicted from the AE location events. At the end of each cyclic loading, the quantity of AE events and energy increased quite rapidly, reaching a maximum at the last cycle. AE events had high energy and duration time. Location events changed quite rapidly and assembled and linked continuously in the core zone. At the same time, they expanded to the top of specimen. A macroscopic crack finally formed. In the postfailure process, some AE events still existed due to fracturing of gliding friction. Owing to the inner stress balance of rock even after loading stopped, minor AE events still occurred.

关键词: location result     AE location     consistent     friction     elastic-plastic deformation    

基于关联规则进行词对齐的跨领域情感分类算法 None

Xi-bin JIA, Ya JIN, Ning LI, Xing SU, Barry CARDIFF, Bir BHANU

《信息与电子工程前沿(英文)》 2018年 第19卷 第2期   页码 260-272 doi: 10.1631/FITEE.1601679

摘要: 文本情感分类被应用于企业用户管理系统,通过自动对诸如评论、博客等带有情感倾向性文字进行分析,帮助商家更好地了解用户对商品或者服务的态度。然而,评论和博客等内容常源于不同应用领域,为每个领域训练一个能准确预测情感倾向的分类器非常困难。主要原因是,在不同领域,人们通常会用不同特征词表达相同情感,并且难以找到一个直接的映射函数,以建立不同领域特征词间的映射关系,从而消除领域间差异。因此,将某个领域训练好的分类器直接应用到另一个领域时,会因为领域间差异使得分类器准确率急速下降。本文提出一个新的基于关联规则进行特征词对齐的跨领域情感分类算法,该算法通过在同一领域中挖掘具有强关联关系的领域共享词和领域专有词词对,建立直接映射关系,并以领域共享词为桥梁,在不同领域的特征专有词之间建立间接映射关系,从而在一定程度上消除了源领域和目标领域之间的差异,有效提升了跨领域情感分类准确率。在亚马逊数据库上的实验结果证明该算法提高了跨领域情感分类性能。

关键词: 情感分类;跨领域;关联规则    

Characterization of hidden rules linking symptoms and selection of acupoint using an artificial neural

Won-Mo Jung, In-Soo Park, Ye-Seul Lee, Chang-Eop Kim, Hyangsook Lee, Dae-Hyun Hahm, Hi-Joon Park, Bo-Hyoung Jang, Younbyoung Chae

《医学前沿(英文)》 2019年 第13卷 第1期   页码 112-120 doi: 10.1007/s11684-017-0582-z

摘要: Comprehension of the medical diagnoses of doctors and treatment of diseases is important to understand the underlying principle in selecting appropriate acupoints. The pattern recognition process that pertains to symptoms and diseases and informs acupuncture treatment in a clinical setting was explored. A total of 232 clinical records were collected using a Charting Language program. The relationship between symptom information and selected acupoints was trained using an artificial neural network (ANN). A total of 11 hidden nodes with the highest average precision score were selected through a tenfold cross-validation. Our ANN model could predict the selected acupoints based on symptom and disease information with an average precision score of 0.865 (precision, 0.911; recall, 0.811). This model is a useful tool for diagnostic classification or pattern recognition and for the prediction and modeling of acupuncture treatment based on clinical data obtained in a real-world setting. The relationship between symptoms and selected acupoints could be systematically characterized through knowledge discovery processes, such as pattern identification.

关键词: acupuncture     indication     neural network     pattern identification     prediction    

规则库自提取和简化的模糊系统

郭海湘,刘涛,诸克军

《中国工程科学》 2004年 第6卷 第10期   页码 52-58

摘要:

介绍了一种新的规则自提取和简化的模糊模型算法,该算法由3个步骤组成:首先,通过构造一个模糊软划分判别准则对输入输出空间进行模糊划分,得到最佳分类数,从而得到了最佳的规则数;其次,根据最佳规则数和神经网络来构造初始的模糊模型;第三,通过运用模糊相似分析法,可以得到计算2个模糊集相似度的方程,从而根据事先确定的阈值来合并相似的模糊集。这样就得到了一个既满足对精度的要求又简单且具有可解释性的模糊系统。最后,用该算法对我国全要素生产力进行了模糊规则的提取。

关键词: 相似分析法     模糊模型     模糊规则     模糊集     神经网络    

含高温储能系统的微电网经济运行研究

罗 毅,张丽娟

《中国工程科学》 2015年 第17卷 第1期   页码 74-80

摘要:

高温储能系统以其高效、环保、节能等优点而有着广泛的应用前景,含高温储能系统的微电网经济运行日益引起关注。文中对高温储能系统、风机、光伏电池、蓄电池、微型燃气轮机以及燃料电池组成的微电网进行分析研究,在分时电价以及微网并网运行的环境下,基于各电源功率特性,建立了高温储能系统模型及微网经济运行模型。运用改进免疫粒子群算法进行模型求解,现场应用验证了其有效性,结果表明文中方法可使微网动态运行整体达到最优,高温储能系统参与热负荷供应,可以节省成本,具有显著的经济效益。

关键词: 高温储能系统;微电网;经济运行;优化调度;免疫粒子群算法    

基于粗糙集理论的模糊神经网络及其在化纤生产过程中的应用

陈双叶,易继锴

《中国工程科学》 2001年 第3卷 第12期   页码 42-46

摘要:

提出一种基于粗糙集理论的模糊神经网络系统,首先运用粗糙集理论来发现大量样本数据中的概略化的规则,然后根据这些规则来设计神经网络的结构模型,并利用神经网络技术对模型进行训练。化纤工业中抽丝冷却侧吹风过程的模拟仿真实验,证明了该方法的有效性和可行性。

关键词: 粗糙集     模糊逻辑     神经网络     规则获取    

基于粗集方法的智能专家系统

曾黄麟

《中国工程科学》 2001年 第3卷 第2期   页码 47-51

摘要:

文章主要介绍基于粗集方法的智能专家系统的基本构成、知识表达方式及学习推理方法。提出了利用不可分辨性或根据算法相容性进行知识简化,导出决策规则的方法,通过研究导师的知识与学习者的知识之间的依赖程度,找出每一概念的有用特征,进行知识简化和系统简化,导出决策规则的学习推理方法。

关键词: 粗集方法     智能专家系统     不可分辨性     知识简化     决策规则    

An improved artificial bee colony algorithm with MaxTF heuristic rule for two-sided assembly line balancing problem

Xiaokun DUAN, Bo WU, Youmin HU, Jie LIU, Jing XIONG

《机械工程前沿(英文)》 2019年 第14卷 第2期   页码 241-253 doi: 10.1007/s11465-018-0518-6

摘要: Two-sided assembly line is usually used for the assembly of large products such as cars, buses, and trucks. With the development of technical progress, the assembly line needs to be reconfigured and the cycle time of the line should be optimized to satisfy the new assembly process. Two-sided assembly line balancing with the objective of minimizing the cycle time is called TALBP-2. This paper proposes an improved artificial bee colony (IABC) algorithm with the MaxTF heuristic rule. In the heuristic initialization process, the MaxTF rule defines a new task’s priority weight. On the basis of priority weight, the assignment of tasks is reasonable and the quality of an initial solution is high. In the IABC algorithm, two neighborhood strategies are embedded to balance the exploitation and exploration abilities of the algorithm. The employed bees and onlooker bees produce neighboring solutions in different promising regions to accelerate the convergence rate. Furthermore, a well-designed random strategy of scout bees is developed to escape local optima. The experimental results demonstrate that the proposed MaxTF rule performs better than other heuristic rules, as it can find the best solution for all the 10 test cases. A comparison of the IABC algorithm and other algorithms proves the effectiveness of the proposed IABC algorithm. The results also denote that the IABC algorithm is efficient and stable in minimizing the cycle time for the TALBP-2, and it can find 20 new best solutions among 25 large-sized problem cases.

关键词: two-sided assembly line balancing problem     artificial bee colony algorithm     heuristic rules     time boundary    

区间灰数表征与算法改进及其GM(1,1)模型应用研究

方志耕,刘思峰,陆芳,万军,刘斌

《中国工程科学》 2005年 第7卷 第2期   页码 57-61

摘要:

针对目前区间灰数的表征和运算过程中存在着较为严重的问题,即:运算结果对灰数的灰度进行不必要的放大,造成信息的严重失真,笔者定义了标准区间灰数与第一和第二标准区间灰数的概念,分析了第一和第二标准区间灰数之间的关系,进一步设计了普通区间灰数与标准区间灰数之间的转换规则,提供了标准区间灰数之间的比较与运算法则,较好地解决了区间灰数之间的大小比较与运算问题。最后,将这一研究成果应用于基于区间数的GM (1, 1)模型预测问题,取得了良好的效果。

关键词: 区间灰数     标准区间灰数     表征     GM(1     1)模型     运算规则    

标题 作者 时间 类型 操作

Analysis of dispatching rules in a stochastic dynamic job shop manufacturing system with sequence-dependent

Pankaj SHARMA,Ajai JAIN

期刊论文

Optimization of multi-objective integrated process planning and scheduling problem using a priority based optimization algorithm

Muhammad Farhan AUSAF,Liang GAO,Xinyu LI

期刊论文

一种控制规则自调整的模糊控制器

程金,张承慧,夏东伟

期刊论文

Overall HIEs deconstruction method and its application

Li LIN, Chengqi XUE,

期刊论文

Space-time evolution rules study on acoustic emission location in rock under cyclic loading

Jiang XU, Shuchun LI, Yunqi TAO, Yongdong JIANG, Xiaojun TANG,

期刊论文

基于关联规则进行词对齐的跨领域情感分类算法

Xi-bin JIA, Ya JIN, Ning LI, Xing SU, Barry CARDIFF, Bir BHANU

期刊论文

Characterization of hidden rules linking symptoms and selection of acupoint using an artificial neural

Won-Mo Jung, In-Soo Park, Ye-Seul Lee, Chang-Eop Kim, Hyangsook Lee, Dae-Hyun Hahm, Hi-Joon Park, Bo-Hyoung Jang, Younbyoung Chae

期刊论文

规则库自提取和简化的模糊系统

郭海湘,刘涛,诸克军

期刊论文

含高温储能系统的微电网经济运行研究

罗 毅,张丽娟

期刊论文

基于粗糙集理论的模糊神经网络及其在化纤生产过程中的应用

陈双叶,易继锴

期刊论文

基于粗集方法的智能专家系统

曾黄麟

期刊论文

An improved artificial bee colony algorithm with MaxTF heuristic rule for two-sided assembly line balancing problem

Xiaokun DUAN, Bo WU, Youmin HU, Jie LIU, Jing XIONG

期刊论文

区间灰数表征与算法改进及其GM(1,1)模型应用研究

方志耕,刘思峰,陆芳,万军,刘斌

期刊论文