检索结果-内蒙古大学图书馆

2014 2nd IEEE International Conference on Progress in Informatics and Computing, PIC 2014

作者： Guevara, Cesar Santos, Matilde Martin, Jose Antonio Lopez, Victoria Dep. Computer Architecture and Automatic Control Complutense University of Madrid Madrid Spain

ISBN: (纸本)9781479920334

Classification techniques based on Artificial Intelligence are computational tools that have been applied to detection of intrusions (IDS) with encouraging results. They are able to solve problems related to information security in an efficient way. The intrusion detection implies the use of huge amount of information. For this reason heuristic methodologies have been proposed. In this paper, decision trees, Naive Bayes, and supervised classifying systems UCS, are combined to improve the performance of a classifier. In order to validate the system, a scenario based on real data of the NSL-KDD99 dataset is used. © 2014 IEEE.

关键词： Decision trees

来源：评论

学校读者我要写书评

暂无评论

Modelling and control of a Flexible Floating Boom: First Approach

引用

IFAC-PapersOnLine 2017年第1期50卷 13108-13113页

作者： Gapingsi, G.E. Korbas, R. Santos, M. Computer Architecture and Automatic Control Department Computer Science Faculty Complutense University of Madrid C/ Profesor García Santesmases 9 Madrid28040 Spain

Floating booms are useful tools in the marine world, especially for marine demarcation where some kind of contamination of sea, ocean or coastal water is present. In this work we have developed a mathematical model for a flexible floating boom which is hooked on two boats (unmanned surface vehicles). It is meant to be used for oil spill containment in marine areas. In order to simplify the model and to make possible its computer simulation, we have adopted a quasi-static approximation where we assume that the inertial forces are small compared to the drag forces applied to the boom. The simulation of this mathematical model has allowed the analysis of the behavior of the floating boom. Based on this knowledge, we have designed a control system which allows us to maintain the flexible floating boom in a specific configuration by controlling its shape. For that purpose, the control approach deals with the speed of the two ends of the floating boom. The results obtained with the implemented control system are encouraging, considering the model is a simplified discrete one and the control effort is reasonable. © 2017

关键词： Marine pollution control systems Drag Knowledge based systems Models Oil spills Unmanned surface vehicles control approach Floating boom Inertial forces Knowledge based control Modelling and controls Quasistatic approximations Simulation Spill containment

来源：评论

学校读者我要写书评

暂无评论

Formal engineering with fuzzy logic

Formal engineering with fuzzy logic

引用

作者： Lopez, Victoria Dep. Computer Architecture and Automatics Complutense University Madrid Spain

ISBN: (纸本)9783642256608

Formal engineering constitutes a very important issue in software engineering projects in real life. The developing of software does not always reach the desired level of reliability and performance even the life cycle of the project used to be controlled by methodologies and specific tools as Formal Languages and Formal Methods. Despite the efforts the question is that even in the best cases, the final product has a lot of errors and in some cases these errors produce catastrophic disasters (ARIANE 5, for example). This paper shows a new proposal to formalize the life cycle according to the worker at each stage and the importance of using not only the classical logics (propositional and first order), but also fuzzy logic in order to formalize the certain and uncertain information involved in natural language. © 2011 Springer-Verlag Berlin Heidelberg.

关键词： Fuzzy logic

来源：评论

学校读者我要写书评

暂无评论

Hybrid heuristic and mathematical programming in oil pipelines networks: Use of immigrants

引用

Journal of Zhejiang university-Science A(Applied Physics & Engineering) 2005年第1期6卷 9-19页

作者： DE LA CRUZ J.M HERRáN-GONZáLEZ A RISCO-MARTíN J.L ANDRéS-TORO B Department of Computer Architecture and Automatic Control Complutense University of Madrid 28040 Madrid SpainDepartment of Computer Architecture and Automatic Control Complutense University of Madrid 28040 Madrid SpainDepartment of Computer Science Engineering C.E.S. Felipe II (U.C.M.) 28300 Aranjuez SpainDepartment of Computer Architecture and Automatic Control Complutense University of Madrid 28040 Madrid Spain

We solve the problem of petroleum products distribution through oil pipelines networks. This problem is modelled and solved using two techniques: A heuristic method like a multiobjective evolutionary algorithm and Mathematical Programming. In the multiobjective evolutionary algorithm, several objective functions are defined to express the goals of the solutions as well as the preferences among them. Some constraints are included as hard objective functions and some are evaluated through a repairing function to avoid infeasible solutions. In the Mathematical Programming approach the multiobjective optimization is solved using the Constraint Method in Mixed Integer Linear Programming. Some constraints of the mathematical model are nonlinear, so they are linearized. The results obtained with both methods for one concrete network are presented. They are compared with a hybrid solution, where we use the results obtained by Mathematical Programming as the seed of the evolutionary algorithm.

关键词： MOEA MILP Hybrid algorithm Constraints

来源：评论

学校读者我要写书评

暂无评论

Reaching a Consensus on Access Detection by a Decision System

Reaching a Consensus on Access Detection by a Decision Syste...

引用

2014 IEEE International Conference on Progress in Informatics and Computing

作者： César Guevara Matilde Santos José AntonioMartín Victoria López Dep. Computer Architecture and Automatic Control Complutense University of Madrid

Classification techniques based on Artificial Intelligence are computational tools that have been applied todetection of intrusions(IDS) with encouraging results. They are able tosolve problems related toinformation security in an efficient way. The intrusion detection implies the use of huge amount of information. For this reason heuristic methodologies have been proposed. In this paper, decision trees, Naive Bayes, and supervised classifying systems UCS, are combined toimprove the performance of a classifier. In order tovalidate the system, a scenariobased on real data of the NSL-KDD99 datasetis used.

关键词： artificial intelligence heuristic methodologies intrusion detection(IDS) decision trees supervised classifying system UCS naive Bayes

来源：评论

学校读者我要写书评

暂无评论

Model correction mechanishm for nonlinear time variant systems as support to predictive control strategies 19

Model correction mechanishm for nonlinear time variant syste...

引用

19th IFAC World Congress on International Federation of automatic control, IFAC 2014

作者： Pérez-Castro, A. Sánchez, J. Guzmán, J.L. Dep. of Computer Science and Automatic Control National Distance Education University Madrid Spain Dep. of Computer Science University of Almería Almería Spain

ISBN: (纸本)9783902823625

This work presents a strategy to estimate and to correct dynamics variations in nonlinear time variant systems. This correction is carried out by estimating the internal parameters of the process and determining the differences with an available nonlinear model of the system. The proposed approach has a double functionality;on the one hand, it allows a better performance of using nonlinear models for control purposes, like for nonlinear predictive controllers;and on the other hand, it can be used as a diagnosis mechanism since it provides relevant information about the current state of the system. Thus, in order to use this technique with nonlinear time variant systems, a nonlinear model predictive control strategy has been used. The estimator proposed within the framework of this work is similar to the Moving Horizon Estimation strategy. Experimental results on a real tank process are presented to show the main properties of the proposed architecture. © IFAC. © Copyright IFAC 2014.

关键词： Model predictive control

来源：评论

学校读者我要写书评

暂无评论

Reaching a consensus on access detection by a decision system

Reaching a consensus on access detection by a decision syste...

引用

IEEE International Conference on Progress in Informatics and Computing (PIC)

作者： Cesar Guevara Matilde Santos Jose Antonio Martin Victoria Lopez Dep. Computer Architecture and Automatic Control Complutense University of Madrid Madrid Spain

关键词： Intrusion detection Databases Decision trees Classification algorithms Artificial intelligence computers

来源：评论

学校读者我要写书评

暂无评论

Towards an improvement of the forecast of wind resources in europe: application of unsupervised machine learning on future projections of polar vortex

Towards an improvement of the forecast of wind resources in ...

引用

2020 Summer computer Simulation Conference, SCSC 2020, Held at the 2020 Summer Simulation Multi-Conference, SummerSim 2020

作者： Montes, María Rodríguez Ayarzagüena, Blanca Mata-García, María Guijarro Complutense University of Madrid Spain Dept. Earth Physics and Astrophysics Complutense University of Madrid Spain Dept. Computer Architecture and Automatic Control Complutense University of Madrid Spain

ISBN: (纸本)9781713819462

Studying the impact of climate change on wintertime polar stratosphere is of particular relevance not only for climate knowledge but also for tropospheric projections. Machine learning provides a way to extract information from different climate models and combine the data in a such way that patterns are clearer, so predictions can be inducted. The methods used in this study have been region growing algorithm, K-means and combination of predictions. The final results show three clusters of response trends for the intensity and location of the stratospheric polar night jet. The prediction shows an increase in zonal wind intensity over the 2xCO2 and 4xCO2 concentration points and a decrease in the related latitude. Our methods can be extended for more climate models and simulation periods, and will allow not only to map the behavior of the polar night jet, but other stratospheric and tropospheric features and interactions between them. ©2020 Society for Modeling & Simulation International (SCS)

关键词： Climate models

来源：评论

学校读者我要写书评

暂无评论

Model correction mechanishm for nonlinear time variant systems as support to predictive control strategies

引用

IFAC Proceedings Volumes 2014年第3期47卷 5975-5980页

作者： A. Pérez-Castro J. Sanchez J.L. Guzman Dep. of Computer Science and Automatic Control National Distance Education University Madrid Spain Dep. of Computer Science University of Almería Almería Spain

This work presents a strategy to estimate and to correct dynamics variations in nonlinear time variant systems. This correction is carried out by estimating the internal parameters of the process and determining the differences with an available nonlinear model of the system. The proposed approach has a double functionality; on the one hand, it allows a better performance of using nonlinear models for control purposes, like for nonlinear predictive controllers; and on the other hand, it can be used as a diagnosis mechanism since it provides relevant information about the current state of the system. Thus, in order to use this technique with nonlinear time variant systems, a nonlinear model predictive control strategy has been used. The estimator proposed within the framework of this work is similar to the Moving Horizon Estimation strategy. Experimental results on a real tank process are presented to show the main properties of the proposed architecture.

关键词： Modeling Model Predictive control Nonlinear Model Predictive control System diagnosis Nonlinear time variant models Moving Horizon Estimation

来源：评论

学校读者我要写书评

暂无评论

A new open-source and smart-device accessible remote control laboratory

A new open-source and smart-device accessible remote control...

引用

Experiment@ International Conference (exp.at)

作者： Julin Bermúdez-Ortega Eva Besada-Portas José A. López-Orozco Jesús M. de la Cruz Department of Computer Architecture and Automatic Control Complutense University of Madrid Madrid Spain

ISBN: (纸本)9781538608111

In this paper we show a new remote lab software architecture for automatic control Education. This architecture is based on *** and Easy Java/JavaScript Simulations, which make it lightweight and accessible from smart devices like smartphones or tablets. It is easily adaptable to different types of controllers and experiments, as the existing labs at the university complutense of madrid show.

关键词： Graphical user interfaces Servers computer architecture Open source software Education Computational modeling Web pages

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：