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2010 Second International Conference on Computer Modeling and Simulation最新文献

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An Application of Improved BP Neural Network in Personal Credit Scoring 改进BP神经网络在个人信用评分中的应用
2010 Second International Conference on Computer Modeling and Simulation Pub Date : 2010-01-22 DOI: 10.1109/ICCMS.2010.147
Rui Qin, L. Liu, Jun Xie
{"title":"An Application of Improved BP Neural Network in Personal Credit Scoring","authors":"Rui Qin, L. Liu, Jun Xie","doi":"10.1109/ICCMS.2010.147","DOIUrl":"https://doi.org/10.1109/ICCMS.2010.147","url":null,"abstract":"Personal Credit Scoring is of great significance for commercial banks to circumvent credit consumption, the original BP algorithm’s convergence rate is slow, learning precision is low, the training process is easy to fall into local minimum, this paper presents an improved algorithm with variable learning rate based on BP algorithm, and applied to simulate personal credit scoring. After comparing we found the improved algorithm has greatly reduced the network’s number of iterations, shorten the network training time and improved the training accuracy.","PeriodicalId":153175,"journal":{"name":"2010 Second International Conference on Computer Modeling and Simulation","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121477988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
A New Model Based on Improved ACA and BP to Predict Silicon Content in Hot Metal 基于改进ACA和BP的铁水硅含量预测新模型
2010 Second International Conference on Computer Modeling and Simulation Pub Date : 2010-01-22 DOI: 10.1109/ICCMS.2010.83
L. xilinx Wang, Dong-qing Wang, Jiaqi Zhu, X. Zhao
{"title":"A New Model Based on Improved ACA and BP to Predict Silicon Content in Hot Metal","authors":"L. xilinx Wang, Dong-qing Wang, Jiaqi Zhu, X. Zhao","doi":"10.1109/ICCMS.2010.83","DOIUrl":"https://doi.org/10.1109/ICCMS.2010.83","url":null,"abstract":"A new model based on improved ant colony algorithm (ACA) and Back-propagation (BP) is proposed to predict Silicon content of hot metal in blast furnace. BP algorithm has been widely used in training artificial neural network (ANN), which is an outstanding model to predict Silicon content. BP algorithm has many attractive features, such as adaptive learning, self- organism, and fault tolerant ability. All of them make BP one of the most successful algorithms in various fields. But BP suffers from relatively slow convergence speed, extensive computations and possible divergence for certain conditions. As a new bionic algorithm, the improved ACA has gained very good performance in solving traveling salesman problem (TSP) and other optimization problems. Its properties such as distributed computation, heuristic searching and robustness have well conquered the long convergence speed and premature problem, which are the main deficiencies of BP algorithm. Experiments show the model proposed has good performance in predicting Silicon content of hot metal.","PeriodicalId":153175,"journal":{"name":"2010 Second International Conference on Computer Modeling and Simulation","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121625448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Introduction to the Design and Implementation of a Web-Based Meta-Synthetic System (WebSMS ) 基于web的元综合系统(WebSMS)的设计与实现
2010 Second International Conference on Computer Modeling and Simulation Pub Date : 2010-01-22 DOI: 10.1109/ICCMS.2010.176
L. Baohong, Liu Jian, Yan Li
{"title":"Introduction to the Design and Implementation of a Web-Based Meta-Synthetic System (WebSMS )","authors":"L. Baohong, Liu Jian, Yan Li","doi":"10.1109/ICCMS.2010.176","DOIUrl":"https://doi.org/10.1109/ICCMS.2010.176","url":null,"abstract":"What we are proposing in this paper is the object, architecture, design and implementation of a Web-Based Simulation Meta-Synthesis, named WebSMS. The motivation of the WebSMS system is to provide services for distributed and secure sharing and reuse of resource, distributed collaboration, and distributed execution and observation of simulation. In this paper, the foundational idea of meta-synthetic is introduced firstly. Then, the architecture of the meta-synthetic framework is given and the design of the main function and its key technologies are proposed.","PeriodicalId":153175,"journal":{"name":"2010 Second International Conference on Computer Modeling and Simulation","volume":"704 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122968664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
An Improved Method of Multi-strategy Ontology Mapping 一种改进的多策略本体映射方法
2010 Second International Conference on Computer Modeling and Simulation Pub Date : 2010-01-22 DOI: 10.1109/ICCMS.2010.59
Gang Lv, Kunlun Wang, Dengsheng Liu
{"title":"An Improved Method of Multi-strategy Ontology Mapping","authors":"Gang Lv, Kunlun Wang, Dengsheng Liu","doi":"10.1109/ICCMS.2010.59","DOIUrl":"https://doi.org/10.1109/ICCMS.2010.59","url":null,"abstract":"In this paper, an improved multi-strategy ontology mapping method is proposed to improve the accuracy of the ontology mapping. The structural characteristics of ontology and the effect of instance mapping upon the similarity of ontology are considered generally. Furthermore, our approach represents and measures the structure of the conceptual nodes through the design of a “code” method, and judges the similarity of the nodes via utilizing the similarity of their ancestor nodes within the influential domain. A 1:1 mapping method is also put forward when operating the selection of initial candidates. In this paper, the tools of WordNet, Jena, protégé, etc. are employed. Finally, the experimental results show the promise of our approach and improve the recall and precision of the retrieve.","PeriodicalId":153175,"journal":{"name":"2010 Second International Conference on Computer Modeling and Simulation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115317895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Convective Heat Transfer Steady Heat Conduction in a Ti-6Al-4V/ZrO2 Composite FGM Plate Considered Temperature Dependency 考虑温度依赖性的Ti-6Al-4V/ZrO2复合FGM板的对流传热
2010 Second International Conference on Computer Modeling and Simulation Pub Date : 2010-01-22 DOI: 10.1109/ICCMS.2010.29
Yangjian Xu, H. Du, Lijuan Xing
{"title":"Convective Heat Transfer Steady Heat Conduction in a Ti-6Al-4V/ZrO2 Composite FGM Plate Considered Temperature Dependency","authors":"Yangjian Xu, H. Du, Lijuan Xing","doi":"10.1109/ICCMS.2010.29","DOIUrl":"https://doi.org/10.1109/ICCMS.2010.29","url":null,"abstract":"The convective heat transfer steady heat conduction in a Ti-6Al-4V/ZrO2 composite FGM plate considered temperature dependency was analyzed by nonlinear finite element method. From numerical calculation, when, T0=300K, Ta=500K and Tb=1 650K, the steady heat conduction distributions in the plate were obtained. The numerical results show that the temperature distribution in the composite plate is more reasonable with the increase of the FGM layer thickness. With the increase of M, the temperature on the surface of ceramics reduces by 10.4%. With the increase of porosity, there is an abrupt change for temperature in the middle of the plate, its value is about 770 K. Compared with the results of constant material properties, the maximum temperature on the surface of metal in a three-layered composite FGM plate considered temperature dependency reduces by 8.3%. Compared with, when, the temperature on the surface of metal reduces by 19.8% and the temperature on the surface of ceramics increases by 43.2%. Compared with the nongraded two-layered composite plate, the temperature of the ceramic/metal composite FGM plate are very gentle and smooth. The results provide the foundations of theoretical calculation for the design and application and the further analysis of thermal stress of the ceramic/metal composite FGM plate.","PeriodicalId":153175,"journal":{"name":"2010 Second International Conference on Computer Modeling and Simulation","volume":"52 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120999658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Correlation Functions for Storage Data and Nonreturn-to-Zero-Inverted Modulated Data of a High-Density Magnetic Recording Channel with Partial Erasure Effect 具有部分擦除效应的高密度磁记录通道中存储数据与不归零反向调制数据的相关函数
2010 Second International Conference on Computer Modeling and Simulation Pub Date : 2010-01-22 DOI: 10.1109/ICCMS.2010.260
Tsai-Sheng Kao, Chiu-Hsiung Chen, Sheng-Chih Chen, Yuan-Chang Chang, Shun-Te Wang
{"title":"Correlation Functions for Storage Data and Nonreturn-to-Zero-Inverted Modulated Data of a High-Density Magnetic Recording Channel with Partial Erasure Effect","authors":"Tsai-Sheng Kao, Chiu-Hsiung Chen, Sheng-Chih Chen, Yuan-Chang Chang, Shun-Te Wang","doi":"10.1109/ICCMS.2010.260","DOIUrl":"https://doi.org/10.1109/ICCMS.2010.260","url":null,"abstract":"As magnetic recording densities grow, the nonlinear distortions, known as transition shift and partial erasure, arise and limit the performance of the detector. Despite that the transition shift can be compensated by a write current technique, the effect of partial erasure complicates the evaluation of the correlation functions for the storage data and the nonreturn-to-zero-inverted modulated data. In this article, we observe the dependence between the partial erasure effect and storage data, and derive the correlation functions for storage data and nonreturn-to-zero-inverted modulated data in a high density magnetic recording channel. The closed-form of the correlation functions are obtained, these results are applied to verify the timing function of the Muller & Mueller's phase detector in a partial response class IV channel via computer simulations.","PeriodicalId":153175,"journal":{"name":"2010 Second International Conference on Computer Modeling and Simulation","volume":"9 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113941637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Design and Manufacture of Powder Molding Equipment Based on Motion Simulation 基于运动仿真的粉末成型设备设计与制造
2010 Second International Conference on Computer Modeling and Simulation Pub Date : 2010-01-22 DOI: 10.1109/ICCMS.2010.99
Qiuju Cheng, Xiaoxin Wei, Z. Zheng
{"title":"Design and Manufacture of Powder Molding Equipment Based on Motion Simulation","authors":"Qiuju Cheng, Xiaoxin Wei, Z. Zheng","doi":"10.1109/ICCMS.2010.99","DOIUrl":"https://doi.org/10.1109/ICCMS.2010.99","url":null,"abstract":"A new compaction powder metallurgy equipment integrated with the mould and the frame is introduced to substitute the traditional powder metallurgy equipment (P/M). During the design and manufacture, finite element method is used to analyze the motion of the equipment. The Lagrange equation and modal synthesis method for flexible body are constructed, and then the cooperative simulation method using ADAMS and MARC is present for solving flexible multibody dynamics of flexible body. Results show that the design of the structure of the powder metallurgy equipment is feasible and the low cost and the simple structure are its merits compared to the traditional equipment.","PeriodicalId":153175,"journal":{"name":"2010 Second International Conference on Computer Modeling and Simulation","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121719711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Identifying Metabolite Biomarkers in Unstable Angina In-Patients by Feature Selection Based Data Mining Methods 基于特征选择的数据挖掘方法识别不稳定心绞痛住院患者的代谢物生物标志物
2010 Second International Conference on Computer Modeling and Simulation Pub Date : 2010-01-22 DOI: 10.1109/ICCMS.2010.335
Huihui Zhao, Jianxin Chen, Na Hou, Chenglong Zheng, Wei Wang
{"title":"Identifying Metabolite Biomarkers in Unstable Angina In-Patients by Feature Selection Based Data Mining Methods","authors":"Huihui Zhao, Jianxin Chen, Na Hou, Chenglong Zheng, Wei Wang","doi":"10.1109/ICCMS.2010.335","DOIUrl":"https://doi.org/10.1109/ICCMS.2010.335","url":null,"abstract":"Unstable angina (UA) is a most dangerous type of Coronary Heart Disease (CHD) that causing more and more mortality and morbidity world wide. Identification of biomarkers for UA in the level of metabolomics is a better avenue to understand the inner mechanism of it. We carried out clinical epidemiology to collect plasmas of UA in-patients and controls. Metabolomics data are obtained by gas chromatography techniques. We presented a novel computational strategy to select biomarkers as few as possible for UA in the data. We combined independent t test and classification based data mining methods as well as backward elimination technique to select as few as possible metabolite biomarkers with best classification performances. By the novel method, we select five metabolites for UA. The associated biomedical literatures support the finding. The novel method presented here provides a better insight into the pathology of a disease. Feature selection based data mining methods better suit to identifying biomarkers for UA","PeriodicalId":153175,"journal":{"name":"2010 Second International Conference on Computer Modeling and Simulation","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123828430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Research on Stability of PWM Controlled DC - DC Converters in CCM CCM中PWM控制DC - DC变换器的稳定性研究
2010 Second International Conference on Computer Modeling and Simulation Pub Date : 2010-01-22 DOI: 10.1109/ICCMS.2010.501
Wang Yuanbin
{"title":"Research on Stability of PWM Controlled DC - DC Converters in CCM","authors":"Wang Yuanbin","doi":"10.1109/ICCMS.2010.501","DOIUrl":"https://doi.org/10.1109/ICCMS.2010.501","url":null,"abstract":"Stability is the intrinsic attribute of a system. A stable system may work well and effectively. For some PWM controlled converters, low frequency may occur in the output voltage and results in unsteadiness of the system. In this paper buck converters are taken as an example to investigate the stability feature. A delay in the feedback loop is related with stability closely, so the converter with a delay and without a delay are analyzed in detail, respectively. Differential equations for inductor current profile and output voltage profile are established. Characteristic equations are obtained from the differential equations. Based on Hurwitz Stability Criterion, stability requirement is derived from characteristic equations. It is shown that converters without a delay in the feedback loop are steady. On the other hand converters with a delay may be unsteady in some cases. Regulating parameters can avoid the low frequency ripple phenomenon. The proposed approach is verifieded by simulation. The simulation results show that the analysis is correct.","PeriodicalId":153175,"journal":{"name":"2010 Second International Conference on Computer Modeling and Simulation","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125626957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Petroleum Lithology Discrimination Based on PSO-LSSVM Classification Model 基于PSO-LSSVM分类模型的石油岩性判别
2010 Second International Conference on Computer Modeling and Simulation Pub Date : 2010-01-22 DOI: 10.1109/ICCMS.2010.284
Guojian Cheng, Ruihua Guo, Wenhai Wu
{"title":"Petroleum Lithology Discrimination Based on PSO-LSSVM Classification Model","authors":"Guojian Cheng, Ruihua Guo, Wenhai Wu","doi":"10.1109/ICCMS.2010.284","DOIUrl":"https://doi.org/10.1109/ICCMS.2010.284","url":null,"abstract":"This paper proposes an algorithm which combines Particle Swarm Optimization (PSO) with Least Squares Support Vector Machines (LSSVM) to identify lithology by using well logging data. First of all, PSO is used for optimizing the main parameters of LSSVM, and then by using the optimized parameters to obtain a better PSO-LSSVM classification model which can be used to identify lithology with logging data. Compared with the traditional SVM model based on cross-validation and a single hidden layer of BP neural network model, the new PSO-LSSVM method can accurately describe the nonlinear mapping relationship between the well logging data and the lithology categories. The experimental results show that a higher precise identification can be got and the automation of the algorithm can also be improved.","PeriodicalId":153175,"journal":{"name":"2010 Second International Conference on Computer Modeling and Simulation","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122655158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 15
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