On the topologies formed by selfish peers (2009)
Thomas Moscibroda, Stefan Schmid, Roger Wattenhofer
Current peer-to-peer (P2P) systems often suffer from a large fraction of freeriders not contributing any resources to the network. Various mechanisms have been designed to overcome this problem....
On the topologies formed by selfish peers (2009)
Thomas Moscibroda, Stefan Schmid, Roger Wattenhofer
Current peer-to-peer (P2P) systems often suffer from a large fraction of freeriders not contributing any resources to the network. Various mechanisms have been designed to overcome this problem....
Fabian Kuhn, Stefan Schmid, Joest Smit, Roger Wattenhofer
Abstract — Until now, the analysis of fault tolerance of peerto-peer systems usually only covers random faults of some kind. Contrary to traditional algorithmic research, faults as well as joins...
Combinatorial Agency with Audits (2009)
Raphael Eidenbenz, Stefan Schmid
This paper studies the question of how to overcome inefficiencies due to hidden actions in a rational milieu, such as a grid computing system with open clientele. We consider the so-called...
Combinatorial Agency with Audits ∗ (2009)
Raphael Eidenbenz, Stefan Schmid
This paper studies the question of how to overcome inefficiencies due to hidden actions in a rational milieu, such as a grid computing system with open clientele. We consider the so-called...
ABSTRACT On the Windfall of Friendship: Inoculation Strategies on Social Networks (2009)
Dominic Meier, Yvonne Anne Oswald, Stefan Schmid, Roger Wattenhofer
This paper studies a virus inoculation game on social networks. A framework is presented which allows the measuring of the windfall of friendship, i.e., how much players benefit if they care about...
Stefan Schmid, Hedingen Zh, Prof Dr, Roger Wattenhofer, Eth Zurich
born 31.07.1978 citizen of
Categories and Subject Descriptors (2009)
Fabian Kuhn, Thomas Locher, Stefan Schmid
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Lukas Füllemann, Supervisors Prof, Dr. Roger Wattenhofer, Stefan Schmid
2.1 Asymmetric Network Connections....................................................................................... 3
Frank Hartung, Norbert Niebert, Andreas Schieder, René Rembarz, Stefan Schmid, Lars Eggert
This article presents new concepts for network-supported media delivery in mobile networks. Automatic composition and merging of networks are central parts of these concepts. Media delivery is no...
DIPLOMA THESIS Dynamic & Fault-Tolerant P2P-Topologies Distributed Computing Group (2008)
Stefan Schmid, Prof Dr, Roger Wattenhofer, Fabian Kuhn
Until now, the analysis of fault tolerance of peer-to-peer (p2p) systems usually only covers random faults of some kind. Contrary to traditional algorithmic research, faults as well as joins and...
A Wireless Public Access Infrastructure for Supporting Mobile Context-Aware IPv6 Applications (2008)
Adrian Friday T, Maomao Wu, Stefan Schmid, Joe Finney, Keith Cheverst T, Bailrigg Lancaster
This paper presents a novel wireless access point architecture designed to support the development of next generation mobile context-aware applications over metropolitan scale areas. In addition,...
A Wireless Public Access Infrastructure for Supporting Mobile Context-Aware IPv6 Applications (2008)
Adrian Friday, Maomao Wu, Stefan Schmid, Joe Finney, Keith Cheverst, Bailrigg Lancaster
This paper presents a novel wireless access point architecture designed to support the development of next generation mobile context-aware applications over metropolitan scale areas. In addition,...
Towards Autonomous Network Domains (2008)
Stefan Schmid, Lars Eggert, Marcus Brunner, Jürgen Quittek
The Internet is currently evolving beyond what its architecture can support. Often, the mechanisms that allow the Internet to adapt to increasingly conflicting sets of new requirements break some of...
Scalability Analysis of the TurfNet Internetworking (2008)
Jordi Pujol, Stefan Schmid, Lars Eggert, Marcus Brunner
Abstract — TurfNet is an internetworking architecture that enables communication among autonomous and heterogeneous network domains. The architecture uses a global identity namespace and does not...
Autonomic Wireless Network Management (2008)
Kai Zimmermann, Sebastian Felis, Stefan Schmid, Lars Eggert, Marcus Brunner
Abstract. This paper presents a decentralized approach for the autonomic management of a group of collaborating base stations to provide efficient and effective wireless network access in highly...
ABSTRACT On the Topologies Formed by Selfish Peers (2008)
Thomas Moscibroda, Stefan Schmid, Roger Wattenhofer
Current peer-to-peer (P2P) systems often suffer from a large fraction of freeriders not contributing any resources to the network. Various mechanisms have been designed to overcome this problem....
Examiner Prof, Rolf Stadler, Advisors Dr, Marcus Brunner, Dr. Stefan Schmid
I would like to thank my advisors Dr. Marcus Brunner and Dr. Stefan Schmid for their incessant guidance throughout the thesis work and their valuable comments on the thesis paper. I would also like...
Structuring Unstructured Peer-to-Peer Networks (2008)
Stefan Schmid, Roger Wattenhofer
Abstract. Flooding is a fundamental building block of unstructured peer-to-peer (P2P) systems. In this paper, we investigate techniques to improve the performance of flooding. In particular, we...
Rescuing tit-for-tat with source coding (2008)
Thomas Locher, Stefan Schmid, Roger Wattenhofer
Tit-for-tat is widely believed to be the most effective strategy to enforce collaboration among selfish users. However, it has been shown that its usefulness for decentralized and dynamic...
Push-to-Pull Peer-to-Peer Live Streaming (2008)
Thomas Locher, Remo Meier, Stefan Schmid, Roger Wattenhofer
Abstract. In contrast to peer-to-peer file sharing, live streaming based on peer-to-peer technology is still awaiting its breakthrough. This may be due to the additional challenges live streaming...
Manipulation in Games ⋆ (2008)
Raphael Eidenbenz, Yvonne Anne Oswald, Stefan Schmid, Roger Wattenhofer
Abstract. This paper studies to which extent the social welfare of a game can be influenced by an interested third party within economic reason, i.e., by taking the implementation cost into account....
Manipulation in Games ⋆ (2008)
Raphael Eidenbenz, Yvonne Anne Oswald, Stefan Schmid, Roger Wattenhofer
Abstract. This paper studies to which extent the social welfare of a game can be influenced by an interested third party within economic reason, i.e., by taking the implementation cost into account....
Abstract — Until now, the analysis of fault tolerance of peerto-peer systems usually only covers random faults of some kind. Contrary to traditional algorithmic research, faults as well as joins...
Internationales Management. 6 Auflage (2008)
Kutschker, Michael, Schmid, Stefan
Dieses Lehrbuch liefert den umfassendsten State-of-the-Art des Internationalen Managements im deutschsprachigen Raum. In sieben Kapiteln werden die zentralen Themenfelder des Fachs vorgestellt....
Web Representation with Dynamic Thumbnails (2007)
Abstract: The popularity of the World Wide Web (WWW) has led to rapid growth of Web sites all over the world. Thousands of new Web pages are designed every day. Today, Web pages with embedded...
Stefan Schmid, Andrew Scott, David Hutchison, Konrad Froitzheim
Live audio streaming is an important component of Internet multimedia. The currently deployed Internet oers poor support for such streams due to the lack of Quality of Service (QoS) capabilities....
1 LARA++ Design Specification (2007)
Work in progress report on the next generation active router architecture of Lancaster University 1
REDO RSVP: E#cient Signalling for Multimedia in the Internet. (2007)
Laurent Mathy, David Hutchison, Stefan Schmid, Steven Simpson
Abstract. Alarming reports of performance and scalability problems associated with per-flow reservations have led many to doubt the ultimate utility of RSVP and the Integrated Services Architecture...
A Re-configurable Component Model for Programmable Nodes (2007)
Jó Ueyama, Stefan Schmid, Geoff Coulson, Gordon S. Blair, Antônio T. Gomes, Ackbar Joolia, ...
Recently developed networked services have been demanding architectures that accommodate an increasingly diverse range of applications requirements (e.g. mobility, multicast, QoS), as well as system...
Basic Abstractions for an Autonomic Network Architecture (2007)
Jelger, Christophe, Tschudin, Christian, Schmid, Stefan, Leduc, Guy
IEEE WoWMoM 2007
R.: Mechanism Design by Creditability (2007)
Raphael Eidenbenz, Yvonne Anne Oswald, Stefan Schmid, Roger Wattenhofer
Abstract. This paper attends to the problem of a mechanism designer seeking to influence the outcome of a strategic game based on her creditability. The mechanism designer offers additional payments...
R.: Mechanism Design by Creditability (2007)
Raphael Eidenbenz, Yvonne Anne Oswald, Stefan Schmid, Roger Wattenhofer
Abstract. This paper attends to the problem of a mechanism designer seeking to influence the outcome of a strategic game based on her creditability. The mechanism designer offers additional payments...
R.: Mechanism Design by Creditability (2007)
Raphael Eidenbenz, Yvonne Anne Oswald, Stefan Schmid, Roger Wattenhofer
Abstract. This paper attends to the problem of a mechanism designer seeking to influence the outcome of a strategic game based on her creditability. The mechanism designer offers additional payments...
R.: Mechanism Design by Creditability (2007)
Raphael Eidenbenz, Yvonne Anne Oswald, Stefan Schmid, Roger Wattenhofer
Abstract. This paper attends to the problem of a mechanism designer seeking to influence the outcome of a strategic game based on her creditability. The mechanism designer offers additional payments...
Long Distance Transport of Ultracold Atoms using a 1D optical lattice (2006)
Schmid, Stefan, Thalhammer, Gregor, Winkler, Klaus, Lang, Florian, Denschlag, Johannes Hecker
We study the horizontal transport of ultracold atoms over macroscopic distances of up to 20 cm with a moving 1D optical lattice. By using an optical Bessel beam to form the optical lattice, we can...
Der zunehmende nationale und internationale Wettbewerb und die steigenden Ansprüche der Verbraucher führten in den vergangenen Jahren zu einer Zunahme der Produktvielfalt mit immer kürzeren...
Der zunehmende nationale und internationale Wettbewerb und die steigenden Ansprüche der Verbraucher führten in den vergangenen Jahren zu einer Zunahme der Produktvielfalt mit immer kürzeren...
Zugl.: Stuttgart, Univ., Diss., 2006
Free Riding in BitTorrent is Cheap (2006)
Thomas Locher, Patrick Moor, Stefan Schmid, Roger Wattenhofer
While it is well-known that BitTorrent is vulnerable to selfish behavior, this paper demonstrates that even entire files can be downloaded without reciprocating at all in BitTorrent. To this end, we...
On the Topologies Formed by Selfish Peers (2006)
Thomas Moscibroda, Stefan Schmid, Roger Wattenhofer
Current peer-to-peer (P2P) systems often suffer from a large fraction of freeriders not contributing any resources to the network. Various mechanisms have been designed to overcome this problem....
Havelaar: A Robust and Efficient Reputation System for Active Peer-to-Peer Systems (2006)
Dominik Grolimund, Luzius Meisser, Stefan Schmid, Roger Wattenhofer
Abstract — Peer-to-peer (p2p) systems have the potential to harness huge amounts of resources. Unfortunately, however, it has been shown that most of today’s p2p networks suffer from a large...
Rainer Baumann, Stéphane Cavin, Stefan Schmid
Voice-over-IP (VoIP) has become an attractive alternative to the plain old telephone system, especially due to the much lower communication costs. However, there are several threats. In this...
Algorithmic Models for Sensor Networks (2006)
Stefan Schmid, Roger Wattenhofer
Developing algorithms for sensor networks—and proving their correctness and performance—, requires simplifying but still realistic models. This paper surveys various models in use today and puts...
equus: A provably robust and locality-aware peer-to-peer system (2006)
Thomas Locher, Stefan Schmid, Roger Wattenhofer
Peer-to-peer systems (p2p) are highly dynamic in nature. They may consist of millions of peers joining only for a limited period of time, resulting in hundreds of join and leave events per second. In...
Dynamic Internet Congestion with Bursts (2006)
Stefan Schmid, Roger Wattenhofer
Abstract. This paper studies throughput maximization in networks with dynamically changing congestion. First, we give a new and simple analysis of an existing model where the bandwidth available to a...
Cryptree: A folder tree structure for cryptographic file systems (2006)
Dominik Grolimund, Luzius Meisser, Stefan Schmid, Roger Wattenhofer
We present Cryptree, a cryptographic tree structure which facilitates access control in file systems operating on untrusted storage. Cryptree leverages the file system’s folder hierarchy to achieve...
Free Riding in BitTorrent is Cheap (2006)
Thomas Locher, Patrick Moor, Stefan Schmid, Roger Wattenhofer
While it is well-known that BitTorrent is vulnerable to selfish behavior, this paper demonstrates that even entire files can be downloaded without reciprocating at all in BitTorrent. To this end, we...
Havelaar: A Robust and Efficient Reputation System for Active Peer-to-Peer Systems (2006)
Dominik Grolimund, Luzius Meisser, Stefan Schmid, Roger Wattenhofer
Abstract — Peer-to-peer (p2p) systems have the potential to harness huge amounts of resources. Unfortunately, however, it has been shown that most of today’s p2p networks suffer from a large...
On the Topologies Formed by Selfish Peers (2006)
Schmid, Stefan, Moscibroda, Thomas, Wattenhofer, Roger
Many P2P systems are only proven efficient for static environments. However, in practice, P2P systems are often very dynamic in the sense that peers can join and leave a system at any time and...
Taming Dynamic and Selfish Peers (2006)
Schmid, Stefan, Kuhn, Fabian, Moscibroda, Thomas, Wattenhofer, Roger
Peer-to-peer systems are often faced with the problem of frequent membership changes. However, many systems are only proven efficient or correct in static environments. In my talk, I will present...
Havelaar: A Robust and Efficient Reputation System for Active Peer-to-Peer Systems (2006)
Dominik Grolimund, Luzius Meisser, Stefan Schmid, Roger Wattenhofer
Abstract — Peer-to-peer (p2p) systems have the potential to harness huge amounts of resources. Unfortunately, however, it has been shown that most of today’s p2p networks suffer from a large...
Havelaar: A Robust and Efficient Reputation System for Active Peer-to-Peer Systems (2006)
Dominik Grolimund, Luzius Meisser, Stefan Schmid, Roger Wattenhofer
Abstract — Peer-to-peer (p2p) systems have the potential to harness huge amounts of resources. Unfortunately, however, it has been shown that most of today’s p2p networks suffer from a large...
Long-lived Feshbach molecules in a 3D optical lattice (2005)
Thalhammer, Gregor, Winkler, Klaus, Lang, Florian, Schmid, Stefan, Grimm, Rudolf, Denschlag, Johannes Hecker
We have created and trapped a pure sample of 87Rb2 Feshbach molecules in a three-dimensional optical lattice. Compared to previous experiments without a lattice we find dramatic improvements such as...
Protocol enhancements for intermittently connected hosts (2005)
Simon Schütz, Lars Eggert, Stefan Schmid, Marcus Brunner
Internet users are increasingly mobile. Their hosts are often only intermittently connected to the Internet, due to using multiple access networks, gaps in wireless coverage or explicit user choice....
Scalability Analysis of the Turfnet Naming and Routing Architecture (2005)
Jordi Pujol, Stefan Schmid, Lars Eggert, Marcus Brunner, Jürgen Quittek
ABSTRACT1 TurfNet is a novel internetworking architecture that enables communication among autonomous and heterogeneous network domains. The architecture uses a global identity namespace and does not...
A Self-Repairing Peer-to-Peer System (2005)
Fabian Kuhn, Stefan Schmid, Roger Wattenhofer
We present a dynamic distributed hash table where peers may join and leave at any time. Our system tolerates a powerful adversary which has complete visibility of the entire state of the system and...
A Robust Interference Model for Wireless Ad-Hoc Networks (2005)
Pascal Von Rickenbach, Stefan Schmid, Roger Wattenhofer, Aaron Zollinger
Among the foremost goals of topology control in wireless ad-hoc networks is interference reduction. This paper presents a receiver-centric interference model featuring two main advantages over...
A Self-Repairing Peer-to-Peer System Resilient to Dynamic Adversarial Churn (2005)
Fabian Kuhn, Stefan Schmid, Roger Wattenhofer
Abstract. We present a dynamic distributed hash table where peers may join and leave at any time. Our system tolerates a powerful adversary which has complete visibility of the entire state of the...
Simon Schütz, Lars Eggert, Stefan Schmid, Marcus Brunner
• next-generation internetworking, ad hoc & sensor security, car-to-car communication, mobile services
Service Specific Overlay Networks Setup and Maintenance using Pattern-based Management (2005)
Asmare, Eskindir, Schmid, Stefan, Brunner, Marcus
Service specific overlays are overlay networks build and setup for a single service. Since different services need different types of overlays the setup process is pretty different. Current...
A Self-Repairing Peer-to-Peer System Resilient to Dynamic Adversarial Churn (2005)
Fabian Kuhn, Stefan Schmid, Roger Wattenhofer
Abstract We present a dynamic distributed hash table where peers may join and leave at any time. Our system tolerates a powerful adversary which has complete visibility of the entire state of the...
A Self-Repairing Peer-toPeer System Resilient to Dynamic Adversarial Churn (2005)
Fabian Kuhn, Stefan Schmid, Roger Wattenhofer
Abstract. We present a dynamic distributed hash table where peers may join and leave at any time. Our system tolerates a powerful adversary which has complete visibility of the entire state of the...
A Self-Repairing Peer-toPeer System Resilient to Dynamic Adversarial Churn (2005)
Fabian Kuhn, Stefan Schmid, Roger Wattenhofer
Abstract We present a dynamic distributed hash table where peers may join and leave at any time. Our system tolerates a powerful adversary which has complete visibility of the entire state of the...
A Self-Repairing Peer-toPeer System Resilient to Dynamic Adversarial Churn (2005)
Fabian Kuhn, Stefan Schmid, Roger Wattenhofer
We present a dynamic distributed hash table where peers may join and leave at any time. Our system tolerates a powerful adversary which has complete visibility of the entire state of the system and...
Parallel Compilation of CMS Software (2004)
Ashby, Shaun, Eulisse, Giulio, Schmid, Stefan, Tuura, Lassi A
LHC experiments have large amounts of software to build. CMS has studied ways to shorten project build times using parallel and distributed builds as well as improved ways to decide what to rebuild....
Invariants: A New Design Methodology for Network Architectures (2004)
Ahlgren, Bengt, Brunner, Marcus, Eggert, Lars, Hancock, Robert, Schmid, Stefan
The first age of Internet architectural thinking concentrated on defining the correct principles for designing a packet-switched network and its application protocol suites. Although these same...
A Re-congurable Component Model for Programmable Nodes (2004)
Gurable Component Model, Stefan Schmid, Geo Coulson, Gordon S. Blair, Antonio T. Gomes, Ackbar Joolia, ...
Recently developed services have been demanding architectures that accommodate an increasingly diverse range of applications requirements (e.g. mobility, multicast, QoS), as well as system...
Network layer access control for context-aware IPv6 applications (2003)
Adrian Friday, Maomao Wu, Joe Finney, Stefan Schmid, Keith Cheverst, Nigel Davies
Abstract. As part of the Lancaster GUIDE II project, we have developed a novel wireless access point protocol designed to support the development of next generation mobile context-aware applications...
Ulm, Univ., Diss., 2003.
Intradiskale Druckmessungen bei einfachen und kombinierten Bewegungen / (2002)
Ulm, Univ., Diss., 2003.
An access control architecture for microcellular wireless IPv6 networks (2001)
Schmid, Stefan, Finney, Joe, Wu, Maomao, Friday, Adrian, Scott, Andrew, Shepherd, D.
This document introduces a novel access control architecture for publicly accessible wireless overlay networks. The architecture is designed to address the problems of ubiquitous Internet service...
A wireless public access infrastructure for supporting mobile context-aware IPv6 applications (2001)
Friday, Adrian, Wu, Maomao, Schmid, Stefan, Finney, Joe, Cheverst, Keith, Davies, Nigel
As part of the Lancaster GUIDE II project, we have developed a novel wireless access point protocol designed to support the development of next generation mobile context-aware applications in our...
Network layer access control for context-aware IPv6 applications (2001)
Friday, Adrian, Wu, Maomao, Finney, Joe, Schmid, Stefan, Cheverst, Keith, Davies, Nigel
As part of the Lancaster GUIDE II project, we have developed a novel wireless access point protocol designed to support the development of next generation mobile context-aware applications in our...
An access control architecture for metropolitan area wireless networks (2001)
Friday, Adrian, Wu, Maomao, Schmid, Stefan, Finney, Joe, Cheverst, Keith, Davies, Nigel
This paper presents a novel wireless access point architecture designed to support the development of next generation mobile context-aware applications over metropolitan scale areas. In addition,...
Active component driven network handoff for mobile multimedia systems (2000)
Stefan Schmid, Joe Finney, Andrew Scott, Doug Shepherd
Abstract. This paper presents novel solutions to some of the QoS problems associated with delay sensitive multimedia applications in next generation mobile environments. Based upon a set of...
Thesis (doctoral) - Universität, Frankfurt (Main).
Improving RSVP for Better Support of Internet Multimedia Communications (1999)
Laurent Mathy, David Hutchison, Stefan Schmid, Geoff Coulson
We have observed the failure of RSVP to be widely accepted as the solution to resource reservation in the Internet. Because we are convinced of the need for resource reservation, in at least parts of...
Typescript.
Abstrakt.
Mark Christian Hayford (1864-1935) ein christlicher Pionier aus Westafrika / (1998)
Thesis (M.A.)--Columbia Biblical Seminary and Graduate School of Missions, Externes Studienzentrum Korntal, 1998.
Mark Christian Hayford (1864-1935) ein christlicher Pionier aus Westafrika / (1998)
Thesis (M.A.)--Columbia Biblical Seminary and Graduate School of Missions, Externes Studienzentrum Korntal, 1998.
[Mikrofiche-Ausg.].
Ein neues Belastungsprogramm zur Untersuchung kardiologischer Patienten auf dem Laufband / (1996)
München, Techn. Univ., Diss., 1996.
Zugl.: Eichstätt, Kath. Universiẗat, Diss., 1996.
Entwicklung der plastischen Kiefer- und Gesichtschirurige in England und America / (1987)
Thesis (doctoral)--Freie Universität Berlin, 1987.