检索结果-内蒙古大学图书馆

作者： Montealegre, Norma Rammig, Franz J. Design of Distributed Embedded Systems Group Heinz Nixdorf Institute Paderborn Germany

ISBN: (纸本)9780769546698

Agent-based modeling and simulation is a way to model the behavior of populations of components and their interactions within a system. The key of this approach is to model the components of the system as autonomous agents and to simulate their behavior for evaluating the system as a whole. That is very useful for observing the emergence of properties in social, biological, environmental or financial systems, among others. Artificial immune systems, which is a sub field of artificial intelligence, comprises systems modeled by simplifying models from the biological immune system. If agent-based modeling and simulation is used as a laboratory for understanding the biological immune system then, it can also be used for transferring the observed principles into artificial immune system models or for evaluating models that have been already adapted for solving technical problems. This paper presents first, a methodology for transferring principles of the biological immune system into the field of artificial immune systems. Then, it presents a brief explanation of the behavior of the cells of the biological immune system, which are treated as internal agents inside a biological organism. Afterwards, the modeling of some selected type of cells and the simulation of the whole simplified system are presented. In the end, the principles of that simplified system are transferred into the design of an alarm management system for the smart grid. © 2012 IEEE.

关键词： Smart power grids

来源：评论

学校读者我要写书评

暂无评论

Flexible resource management for Self-X systems: An evaluation

Flexible resource management for Self-X systems: An evaluati...

引用

2010 13th IEEE International Symposium on Object/Component/Service-Oriented Real-Time distributed Computing Workshops, ISORC Workshops 2010

作者： Oberthür, Simon Zaremba, Leszek Lichte, Hermann Simon Department of Design of Distributed Embedded Systems Heinz Nixdorf Institute University of Paderborn Paderborn Germany Computer Networks Group University of Paderborn Paderborn Germany

ISBN: (纸本)9780769540382

In classical real-time systems the resources for an application are allocated at system start so that every resource request can be fulfilled in future. This would lead to much internal waste of resources in the case of modern Self-X systems, because these systems have highly dynamic resource consumptions. The Flexible Resource Manager (FRM) was developed to overcome this problem. The manager puts temporarily unused resources at other applications' disposal. In this paper the FRM approach is evaluated by concrete application examples and randomly generated applications. © 2010 IEEE.

关键词： Real time systems

来源：评论

学校读者我要写书评

暂无评论

A framework for enhancing dependability in self-x systems by Artificial Immune systems

A framework for enhancing dependability in self-x systems by...

引用

International Symposium on Object-Oriented Real-Time distributed Computing

作者： Franz Rammig Katharina Stahl Gavin Vaz Design of Distributed Embedded Systems Research Group University of Paderborn Paderborn Germany

In self-adapting embedded real-time systems, operating systems and software provide mechanisms to self-adapt to changing requirements. Autonomous adaptation decisions introduce novel risks as they may lead to unforeseen system behavior that could not have been specified within a design-time model. However, as part of its functionality the operating system has to ensure the reliability of the entire self-x system during run-time. In this paper, we present our work in progress for an operating system framework which aims to identify anomalous or malicious system states at run-time without a sophisticated specification-time model. Inspired by the Artificial Immune systems Danger Theory, we propose an anomaly detection mechanism that operates not only on the local system behavior information of the monitored component. Furthermore, to ensure an efficient behavior evaluation, the anomaly detection mechanism implies system-wide input signals that indicate e.g the existence of a potential danger within the overall system or the occurrence of a system adaption. Due to the ability of this framework to cope with dynamically changing behavior and to identify unintended behavioral deviations, it seems to be a promising approach to enhance the run-time dependability of a self-x system.

关键词： Immune system Real-time systems Monitoring Kernel Context Detectors

来源：评论

学校读者我要写书评

暂无评论

Agent-Based Modeling and Simulation of Artificial Immune systems

Agent-Based Modeling and Simulation of Artificial Immune Sys...

引用

IEEE International Symposium on Object/Component/Service-Oriented Real-Time distributed Computing Workshops (ISORCW)

作者： Norma Montealegre Franz J. Rammig Design of Distributed Embedded Systems Group Heinz Nixdorf Institute Paderborn Germany

关键词： Immune system Pathogens Biological system modeling Adaptation models Object oriented modeling Computational modeling

来源：评论

学校读者我要写书评

暂无评论

Online Behavior Classification for Anomaly Detection in Self-X Real-Time systems

Online Behavior Classification for Anomaly Detection in Self...

引用

International Symposium on Object-Oriented Real-Time distributed Computing

作者： Franz Rammig Katharina Stahl Design of Distributed Embedded Systems Research Group University of Paderborn Paderbom Germany

Autonomous adaptation in self-adapting embedded real-time systems introduces novel risks as it may lead to unforeseen system behavior. An anomaly detection framework integrated in a real-time operating system can ease the identification of such suspicious novel behavior and, thereby, offers the potential to enhance the reliability of the considered self-x system. However, anomaly detection is based on knowledge about normal behavior. When dealing with self-reconfiguring applications, normal behavior changes so that the knowledge base requires adaptation or even (re-)construction at runtime. The stringent restrictions of real-time systems in terms of runtime and memory consumption assign this task to be a really challenging problem. In this paper, we present our idea for online construction of application behavior knowledge that does not rely on any training phase. The applications' behavior is defined by the application's system call invocations. For the knowledge base, we exploit Suffix Trees as they offer potentials to represent application behavior patterns and their associated information in a compact manner. We apply the online algorithm provided by Suffix Trees as a basis to construct the knowledge base with low computational effort. However, we integrate anomaly detection and classification into the online construction method. We ensure thereby that new behavioral patterns do not unconditionally update the behavior knowledge base, but beforehand, have been evaluated in a context-related manner inspired by Danger Theory, a special discipline of Artificial Immune systems.

关键词： Knowledge based systems Real-time systems Operating systems Runtime Context Memory management Training

来源：评论

学校读者我要写书评

暂无评论

Agent-based artificial immune system model for the detection of faults in a distributed satellite system

Agent-based artificial immune system model for the detection...

引用

IEEE AESS European Conference on Satellite Telecommunications (ESTEL)

作者： Norma Montealegre Design of Distributed Embedded Systems Group Heinz Nixdorf Institute Paderborn Germany

A distributed satellite system is composed of several small satellites working collaboratively or symbiotically together on a satellite mission. In such a system, fault detection can be executed in a similar way the distributed and specialized cells of the biological immune system find and counteract sicknesses. This paper proposes the use of an agent-based artificial immune system model for the detection of faults. The method takes into account the reduced memory and computational resources that small satellites have, applying control of population of agents through death and reproduction, and dimension reduction of the signatures that identify the agents. Simulations of the dynamics of the population of agents, of a model adjusted to a system with several satellites, shows emergent properties for encountering faults and counteracting them correspondingly.

关键词： Satellites Pathogens Immune system Sociology Statistics Monitoring Cells (biology)

来源：评论

学校读者我要写书评

暂无评论

Self-Stabilizing Micro Controller for Large-Scale Sensor Networks in Spite of Program Counter Corruptions Due to Soft Errors

Self-Stabilizing Micro Controller for Large-Scale Sensor Net...

引用

International Conference on Parallel and distributed systems (ICPADS)

作者： Christopher Boelmann Torben Weis Michael Engel Arno Wacker Distributed Systems Group University of Duisburg-Essen Duisburg Germany Design Automation for Embedded Systems Group TU Dortmund University Dortmund Germany Software-engineering for Ubiquitous-Computing Applications University of Kassel Kassel Germany

For large installations of networked embedded systems it is important that each entity is self-stabilizing, because usually there is nobody to restart nodes that have hung up. Self-stabilization means to recover from temporary failures (soft errors) and adapt to a change of network topology caused by permanent failures. On the software side self-stabilizing algorithms must assume that the hardware is executing the software correctly. In this paper we discuss cases in which soft errors invalidate this assumption, especially in cases where CPU registers or the watchdog timer are affected by the fault. Based on the observation that a guaranteed self-stabilization is only possible as long as the watchdog-timer is working properly after temporary failures, we propose and compare three different approaches that meet the requirements of sensor networks, to solve this problem with a combination of hardware- and software-modifications: 1) A run-time verification of every watchdog access 2) A completely hardware-based approach, without any software modifications 3) A 2 X byte code alignment, to realign a corrupted program counter Furthermore we determine the average code-size increase and evaluate necessary hardware-modifications that come along with each approach.

关键词： Registers Hardware Random access memory Read only memory Microprocessors embedded systems

来源：评论

学校读者我要写书评

暂无评论

Self-Awareness for Autonomous systems

引用

PROCEEDINGS OF THE IEEE 2020年第7期108卷 971-975页

作者： Dutt, Nikil Regazzoni, Carlo S. Rinner, Bernhard Yao, Xin Nikil Dutt (Fellow IEEE) received the Ph.D. degree from the University of Illinois at Urbana–Champaign Champaign IL USA in 1989.""He is currently a Distinguished Professor of computer science (CS) cognitive sciences and electrical engineering and computer sciences (EECS) with the University of California at Irvine Irvine CA USA. He is a coauthor of seven books. His research interests include embedded systems electronic design automation (EDA) computer architecture distributed systems healthcare Internet of Things (IoT) and brain-inspired architectures and computing.""Dr. Dutt is a Fellow of ACM. He was a recipient of the IFIP Silver Core Award. He has received numerous best paper awards. He serves as the Steering Committee Chair of the IEEE/ACM Embedded Systems Week (ESWEEK). He is also on the steering organizing and program committees of several premier EDA and embedded system design conferences and workshops. He has served on the Editorial Boards for the IEEE Transactions on Very Large Scale Integration (VLSI) Systems and the ACM Transactions on Embedded Computing Systems and also previously served as the Editor-in-Chief (EiC) for the ACM Transactions on Design Automation of Electronic Systems. He served on the Advisory Boards of the IEEE Embedded Systems Letters the ACM Special Interest Group on Embedded Systems the ACM Special Interest Group on Design Automationt and the ACM Transactions on Embedded Computing Systems. Carlo S. Regazzoni (Senior Member IEEE) received the M.S. and Ph.D. degrees in electronic and telecommunications engineering from the University of Genoa Genoa Italy in 1987 and 1992 respectively.""He is currently a Full Professor of cognitive telecommunications systems with the Department of Electrical Electronics and Telecommunication Engineering and Naval Architecture (DITEN) University of Genoa and a Co-Ordinator of the Joint Doctorate on Interactive and Cognitive Environments (JDICE) international Ph.D. course started initially as EU Erasmus Mundus Project and

Autonomous systems are able to make decisions and potentially take actions without direct human intervention, which requires some knowledge about the system and its environment as well as goal-oriented reasoning. In computer systems, one can derive such behavior from the concept of a rational agent with autonomy (“control over its own actions”), reactivity (“react to events from the environment”), proactivity (“act on its own initiative”), and sociality (“interact with other agents”) as fundamental properties \n[1]\n. Autonomous systems will undoubtedly pervade into our everyday lives, and we will find them in a variety of domains and applications including robotics, transportation, health care, communications, and entertainment to name a few. \nThe articles in this month’s special issue cover concepts and fundamentals, architectures and techniques, and applications and case studies in the exciting area of self-awareness in autonomous systems.

关键词： Special issues and sections Autonomous systems Self-aware Robot sensing systems Computational modeling

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：