Book

Proceedings of the Joint Workshop of the German Research Training Groups in Computer Science

June 2012

June 2012

Publisher: Books on Demand GmbH
Editor: Kristina Yordanova and Alexander Gladisch and Kristian Duske and Daniel Janusz and Sebastian Bader
ISBN: 978-3-848200-22-1

Authors:

The German Research Foundation's (DFG) Research Training Groups (RTG) from the field of computer science traditionally meet once a year at Schloss Dagstuhl - Leibniz Center for Informatics, one of the world's premier venues for computer science. This DFG-funded networking meeting is intended to facilitate doctoral students' exchange of ideas and experiences and to strengthen the contacts within the german computer science community. Since the meeting is growing constantly, it is split into two parts since 2011. This years topics of the two parts are: Dataexploration, Visualization and Software Engineering and Self-Organization and Communication in Ubiquitous Environments. To provide an overview on the entire meeting to enable a better connection of students with similar topics, every student of each RTG was asked to submit a one-page abstract introducing their work. This joint proceedings of both workshop parts contain these abstracts, along with a brief overview of each RTG's focus.

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Conference Paper

Full-text available

Providing Scalable Data Services in Ubiquitous Networks

May 2010

Topology is a fundamental part of a network that governs connectivity between nodes, the amount of data flow and the efficiency of data flow between nodes. In traditional networks, due to physical limitations, topology remains static for the course of the network operation. Ubiquitous data networks (UDNs), alternatively, are more adaptive and can be configured for changes in their topology. This ... [Show full abstract] flexibility in controlling their topology makes them very appealing and an attractive medium for supporting "anywhere, any place" communication. However, it raises the problem of designing a dynamic topology. The dynamic topology design problem is of particular interest to application service providers who need to provide cost-effective data services on a ubiquitous network. In this paper we describe algorithms that decide when and how the topology should be reconfigured in response to a change in the data communication requirements of the network. In particular, we describe and compare a greedy algorithm, which is often used for topology reconfiguration, with a non-greedy algorithm based on metrical task systems. Experiments show the algorithm based on metrical task system has comparable performance to the greedy algorithm at a much lower reconfiguration cost. Comment: 12pages, 4 figures, 2 algorithms, Workshop for Ubiquitous Data Management

Conference Paper

QoS Management in MANETs Using Norm-Governed Agent Societies

February 2006

Mobile ad-hoc networks (MANETs) are self-created and self-organized by a collection of mobile nodes, interconnected by multi-hop wireless paths in a strictly peer-to-peer fashion. Such networks offer unique benefits and versatility with respect to bandwidth spatial re-use, intrinsic fault tolerance, and low-cost rapid deployment. However, Quality of Service (QoS) provisioning to applications ... [Show full abstract] running in such networks is intrinsically difficult. In this paper, we consider a QoS framework for MANETs which monitors network resources and application requirements, and feeds information to agents, who coordinate efficient resource allocation on a social basis (in this case, decision-making according to normative policies and protocols). Thus we propose a framework for QoS management in MANETs which converges network-centric events, metrics and parameters with organizational intelligence offered by norm-governed multi-agent systems, as a step towards realising a vision of ubiquitous networking.

Conference Paper

Workshop on Software Technologies for Ultra-Large Scale Systems

June 2007 · Proceedings - International Conference on Software Engineering

Given the inevitable trends towards increasing complexity of software-intensive systems, many future software-intensive systems will be ultra-large scale (ULS). Radical scale-up of systems will be manifested in many dimensions: implementation complexity, distribution, decentralization, networking, storage, and quality-of-service, dependability/security, size and structure of development ... [Show full abstract] organizations and methods, complexity of organizations surrounding deployed systems, and so forth. Radical increases in scale and complexity will demand new approaches to all aspects of system conception, definition, development, deployment, use, maintenance, evolution, and regulation. This workshop, the First ICSE Workshop on ULS systems, has several goals: to raise awareness of ULS systems in the ICSE community; to further our understanding of the characteristics of such systems; to explore the unique research problems of ULS systems; to help foster a community who study and build ULS systems; and to understand the role and the shortcomings of traditional software engineering concepts, methods, and tools relative to ULS systems.

Conference Paper

Full-text available

Welcome message from the general co-chairs

May 2011

Welcome to the 12th IFIP/IEEE International Symposium on Integrated Network Management (IM 2011). This year, for the first time, IM is being held in Dublin, Ireland from 23th to 27th May. We are delighted to host the conference in Trinity College Dublin University. Since being first held in 1989, the symposium has established itself as the premier venue for original research in the area of ... [Show full abstract] management, operations and control of networks, networking services, networked applications, and distributed systems.

Conference Paper

Handovers for Ubiquitous and Optimal Broadband Connectivity among Cooperative Networking Environment...

October 2009

The handover function is a key enabler for seamless mobility and service continuity among a variety of mobile/wireless access technologies supporting IP connectivity. The paper focuses on the key research challenges regarding inter-system handover operations among various radio cooperative networking environments (3G, WLAN, WiMAX and DVB) that are going to formulate future/near future business ... [Show full abstract] cases for both broadcasters and telecom operators in the context of a Fixed-Mobile Convergence (FMC) communications environment. In this context, relevant efforts from the IETF, IEEE 802.21, IEEE 1900.4, 3GPP and DVB are reviewed and incorporation of the IEEE 802.21 functionality inside the mobility management protocol stack is discussed.

Article

Composite Protocols and Networking Services

January 2005

Gary Minden

Active Networking is concerned with the rapid definition and deployment of innovative, but reliable and robust, networking services. Towards this end we have developed a composite protocol and networking services architecture that encourages re-use of protocol functions, is well defined, and facilitates automatic checking of interfaces and protocol component properties. The architecture has been ... [Show full abstract] used to implement common Internet protocols and services. We will report on this work at the workshop. @InProceedings{minden:DSP:2005:92, author = {Gary Minden}, title = {Composite Protocols and Networking Services}, booktitle = {Service Management and Self-Organization in IP-based Networks}, year = {2005}, editor = {Matthias Bossardt and Georg Carle and D. Hutchison and Hermann de Meer and Bernhard Plattner}, number = {04411}, series = {Dagstuhl Seminar Proceedings}, ISSN = {1862-4405}, publisher = {Internationales Begegnungs- und Forschungszentrum f{"u}r Informatik (IBFI), Schloss Dagstuhl, Germany}, address = {Dagstuhl, Germany}, URL = {http://drops.dagstuhl.de/opus/volltexte/2005/92}, annote = {Keywords: Active Networking Composite Protocols Composite Network Services} }

Article

Parkinson's Action Network Public Policy Forum

December 2002

Forum Objectives and Program: The Science and Research Forum will serve as a premier educational program for Parkinson's patients and researchers. The primary goal is to bring together participants in order to share information and learn about the latest developments in Parkinson's research. Through plenary sessions, workshops and networking opportunities, participants will learn about the latest ... [Show full abstract] research and discuss creative ideas for new research endeavors. Fundamental to the success of the Forum is the premise that visiting scientists and researchers can learn from each other and from Parkinson's patients and caregivers. A member of prominent scientists and representatives of Federal agencies engaged in Parkinson's-related research will provide a definitive summary of the "State of Parkinson's Scientific Research." The presentations will summarize the status of ongoing research, discuss newly-released data, and address the regulatory approval processes that allow therapeutic breakthroughs to reach patients. Follow-up Report: Following the Science and Research Forum, PAN will provide the USAMRMC with a detailed written report summarizing the presentations and recommendations generated by the ensuing discussions. Funding Request: PAN's fending request remains at the same level $4O,OOO level specified in the November 20, 2002 letter to Dr. Stephen Grate at USAMRMC. The only amendment is that these finds are to be devoted exclusively to support of the Science and Research Forum.

Chapter

Pervasive service discovery protocol for power optimization in an AD HOC network

April 2010

Usage of wireless devices give rise to interesting spontaneous networking scenarios viz. service discovery, self-organization, etc. In service discovery, devices automatically discover network services and may advertise their existence in a dynamic way. In an ad hoc network, where users are organized in groups, the management procedures are introduced to support such dynamic spontaneous groups. ... [Show full abstract] The proposed spontaneous group management is based on the concept of group leader, in which a terminal is responsible for the location update of a group of terminals. As energy is a scarce resource, novel schemes to reduce the search time and power consumption of all the devices in the ubiquitous environment are required. These are proposed and discussed in this chapter. © 2010 by World Scientific Publishing Co. Pte. Ltd. All Rights Reserved.

Article

Full-text available

On the adaptation of context-aware services

April 2015

Ubiquitous networking empowered by Beyond 3G networking makes it possible for mobile users to access networked software services across heterogeneous infrastructures by resource-constrained devices. Heterogeneity and device limitedness creates serious problems for the development and deployment of mobile services that are able to run properly on the execution context and are able to ensures that ... [Show full abstract] users experience the "best" Quality of Service possible according to their needs and specific contexts of use. To face these problems the concept of adaptable service is increasingly emerging in the software community. In this paper we describe how CHAMELEON, a declarative framework for tailoring adaptable services, is used within the IST PLASTIC project whose goal is the rapid and easy development/deployment of self-adapting services for B3G networks.

Conference Paper

Full-text available

A Theory of Mediators for Eternal Connectors

October 2010 · Lecture Notes in Computer Science

On the fly synthesis of mediators is a revolutionary approach to the seamless networking of today's and future digital systems that increasingly need be connected. The resulting emergent mediators (or Connectors) adapt the interaction protocols run by the connected systems to let them communicate. However, although the mediator concept has been studied and used quite extensively to cope with many ... [Show full abstract] heterogeneity dimensions, a remaining key challenge is to support on-the-fly synthesis of mediators. Towards this end, this paper introduces a theory of mediators for the ubiquitous networking environment. The proposed formal model: (i) precisely characterizes the problem of interoperability between networked systems, and (ii) paves the way for automated reasoning about protocol matching (interoperability) and related mediator synthesis.

Book

Mapping Biological Systems to Network Systems

March 2016

Heena Rathore

The book presents the challenges inherent in the paradigm shift of network systems from static to highly dynamic distributed systems - it proposes solutions that the symbiotic nature of biological systems can provide into altering networking systems to adapt to these changes. The author discuss how biological systems - which have the inherent capabilities of evolving, self-organizing, ... [Show full abstract] self-repairing and flourishing with time - are inspiring researchers to take opportunities from the biology domain and map them with the problems faced in network domain. The book revolves around the central idea of bio-inspired systems -- it begins by exploring why biology and computer network research are such a natural match. This is followed by presenting a broad overview of biologically inspired research in network systems -- it is classified by the biological field that inspired each topic and by the area of networking in which that topic lies. Each case elucidates how biological concepts have been most successfully applied in various domains. Nevertheless, it also presents a case study discussing the security aspects of wireless sensor networks and how biological solution stand out in comparison to optimized solutions. Furthermore, it also discusses novel biological solutions for solving problems in diverse engineering domains such as mechanical, electrical, civil, aerospace, energy and agriculture. The readers will not only get proper understanding of the bio inspired systems but also better insight for developing novel bio inspired solutions.

Article

Defining and Using Profiles to Personalize and Manage Reconfigurable Services

As ICT services are becoming more ubiquitous, mobile and personalized, we are witnessing an increasing importance of two related needs: i) the necessity of defining, managing and storing user-related information, e.g. preferences, personal data, characteristics of terminals and devices, settings of network parameters and of application parameters, etc.; ii) the necessity of defining procedures ... [Show full abstract] and architectures allowing the users to exploit all this information, known on the whole as profile, in the most simple and intuitive way, without forgoing security requirements. The enhanced capabilities of this framework can be exploited: i) on the user side, to personalize services, to improve the portability of services over heterogeneous terminals and devices, to adapt services to available networking and terminal technologies; ii) on the network side, to give to operators more powerful tools to define new solutions for distributed, technology- independent, self-organizing, and autonomic networking systems. Such systems could be designed so as to be able to react autonomously to changing contexts and environments. In this paper, we first review the current activities in this field, then we focus on our proposed approach for the definition of user profiles, device profiles and network profiles. Our solution is not limited to a "static" definition of profile information, but includes the procedures to use such profiles, logically organized in a suitable architecture. Some challenges deriving from security and privacy issues are also discussed.