This book constitutes the refereed proceedings of the Second IFIP-TC6 Networking Conference， NETWORKING 2002， held in Pisa， Italy， in May 2002.The 82 revised full papers and 31 short papers presented together with three invited contributions were carefully reviewed and selected from a total of 314 submissions. The papers are organized in topical sections on multicasting， differentiated services， network performance， self-organizing networks services and protocols， call admission control， voice/video performance modeling， Web access， optical networks， network and traffic modeling， ad hoc networks， resource allocation， LAN and PAN， wireless network performance， multimedia， TCP， IP， queueing models， satellite networks， optical network performance， multi-protocol label switching， and future wireless networks.

This book constitutes the refereed proceedings of the 9th International Conference on High-Performance Computing and Networking， HPCN Europe 2001， held in Amsterdam， The Netherlands in June 2001.The 67 revised papers and 15 posters presented were carefully reviewed and selected from a total of almost 200 submissions. Among the areas covered are Web/grid applications of HPCN， end user applications， computational science， computer science， and Java in HPCN.

本书概括地介绍了访问控制中的角色工程技术，包括访问控制发展历程、访问控制策略规范与冲突、基于角色的访问控制模型、基于角色的访问控制系统中的约束研究、自顶向下角色工程方法、自底向上角色工程方法、角色挖掘的基本定义/算法分类/测试数据集及算法评价标准、基于语义的角色挖掘算法、基于图论的角色挖掘算法、基于矩阵的角色挖掘算法、基于权重的角色挖掘算法、基于动态建模的角色挖掘算法、基于单一约束的角色优化算法和基于多约束的角色优化算法等。本书介绍的内容涉及角色工程的基本术语与概念、发展历史与发展趋势、基本分类方法、基本挖掘算法与不同的基于约束的优化算法等。本书有助于读者全面了解角色工程的基本原理、方法，以及不同角色工程技术与算法之间的关系，适合作为高等学校信息安全相关专业研究生和高年级本科生的教材，也适合相关科研人员和对信息安全技术感兴趣的人员阅读。

This book constitutes the refereed proceedings of the 7th IFIP/IEEE International Workshop on Protocols for High Speed Networks， PfHSN 2002， held in Berlin， Germany in April 2002. The 14 revised full papers presented together with two invited papers were carefully reviewed and selected from 54 submissions. The papers are organized in topical sections on signalling and control， application-level mechanisms， TCP and high speed networks， quality of service， and traffic engineering and mobility

This book constitutes the refereed proceedings of the Second International Conference on High Performance Computing and Communications， HPCC 2006， held in Munich， Germany in September 2006.The 95 revised full papers presented were carefully reviewed and selected from 328 submissions. The papers address all current issues of parallel and distributed systems and high performance computing and communication as there are： networking protocols， routing， and algorithms， languages and compilers for HPC， parallel and distributed architectures and algorithms， embedded systems， wireless， mobile and pervasive computing， Web services and internet computing， peer-to-peer computing， grid and cluster computing， reliability， fault-tolerance， and security， performance evaluation and measurement， tools and environments for software development， distributed systems and applications， database applications and data mining， biological/molecular computing， collaborative and cooperative environments， and programming interfaces for parallel systems.

This book constitutes the thoroughly refereed post-proceedings of the 7th International Workshop on Agent-Mediated Electronic Commerce， AMEC VII 2005， held in Utrecht， Netherlands in July 2005， as part of AAMAS 2005， and the third Workshop on Trading Agent Design and Analysis， TADA 2005， held in Edinburgh， UK in August 2005， in the course of the IJCAI 2005 conference meetings.The 7 revised full AMEC 2005 papers presented were carefully selected and address a mix of both theoretical and practical issues， looking at behavioral and organizational dimensions of agent-mediated electronic commerce as well as at complex computational， information and system-level challenges. An extended version of an article originally presented at AMEC 2004 has also been included. The second part of the book comprises 8 revised full papers of TADA 2005 that focus on trading agent technologies and mechanism design， including discussions of agent architectures and decision-making algorithms along with theoretical analyses and empirical evaluations of agent strategies in different trading contexts.

The wireless industry is in the midst of a fundamental shift from providing voice-only services to offering customers an array of multimedia services， including a wide variety of audio， video and data communications capabilities. Future wireless networks will be integrated into every aspect of daily life， and therefore could affect our life in a magnitude similar to that of the Internet and cellular phones.This monograph demonstrates that these emerging applications and directions require fundamental understanding on how to design and control wireless networks that lies far beyond what the currently existing theory can provide. It is shown that mathematics is the key technology to cope with central technical problems in the design of wireless networks since the complexity of the problem simply precludes the use of engineering common sense alone to identify good solutions.The main objective of this book is to provide tools for better understanding the fundamental tradeoffs and interdependencies in wireless networks， with the goal of designing resource allocation strategies that exploit these interdependencies to achieve significant performance gains. The book consists of three largely independent parts： theory， applications and appendices. The latter contain foundational apects to make the book more understandable to readers who are not familiar with some basic concepts and results from linear algebra and convex analysis.

Among the many changes brought by the Internet is the emergence of electronic commerce over the Web. E-commerce activities， such as the online exchange of information， services， and products， are opening up completely new opportunities for business， at new levels of productivity and profitability. In parallel with the emergence of e-commerce， intelligent software agents as entities capable of independent action in open， unpredictable environments have matured into a promising new technology. Quite naturally， e-commerce agents hold great promise for exploiting the Internet's full potential as an electronic marketplace. The 20 coherently written chapters in this book by leading researchers and professionals present the state of the art in agent-mediated e-commerce. Researchers， professionals， and advanced students interested in e-commerce or agent technology will find this book an indispensable source of information and reference.

本书基于跨境电子商务客服人员的实际工作过程，结合丰富的跨境电子商务客服实战案例，以项目的形式编排。全书共6个项目，分别为跨境电子商务客服认知、跨境电子商务客服工作准备、跨境电子商务客服策略、跨境电子商务客服与沟通、跨境电子商务B2B店铺客服、跨境电子商务B2C店铺客服。通过学习本书，读者可以提高跨境电子商务客服的业务水平。本书可作为高职院校跨境电子商务、国际经济与贸易、国际商务、商务英语等专业相关课程的教材，也可作为跨境电子商务行业从业人员学习及培训用书。

Network Calculus is a set of recent developments that provide deep insights into flow problems encountered in the Internet and in intranets. The first part of the book is a self-contained， introductory course on network calculus. It presents the core of network calculus， and shows how it can be applied to the Internet to obtain results that have physical interpretations of practical importance to network engineers. The second part serves as a mathematical reference used across the book. It presents the results from Min-plus algebra needed for network calculus. The third part contains more advanced material. It is appropriate reading for a graduate course and a source of reference for professionals in networking by surveying the state of the art of research and pointing to open problems in network calculus and its application in different fields， such as mulitmedia smoothing， aggegate scheduling， adaptive guarantees in Internet differential services， renegotiated reserved services， etc.