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UPPAAL in a Nutshell

by Kim G. Larsen, Paul Pettersson, Wang Yi , 1997
"... . This paper presents the overall structure, the design criteria, and the main features of the tool box Uppaal. It gives a detailed user guide which describes how to use the various tools of Uppaal version 2.02 to construct abstract models of a real-time system, to simulate its dynamical behavior, ..."
Abstract - Cited by 662 (51 self) - Add to MetaCart
, to specify and verify its safety and bounded liveness properties in terms of its model. In addition, the paper also provides a short review on case-studies where Uppaal is applied, as well as references to its theoretical foundation. 1 Introduction Uppaal is a tool box for modeling, simulation

Generalized Counterexamples to Liveness Properties

by Gadi Aleksandrowicz , Jason Baumgartner , Alexander Ivrii , Ziv Nevo
"... Abstract-We consider generalized counterexamples in the context of liveness property checking. A generalized counterexample comprises only a subset of values necessary to establish the existence of a concrete counterexample. While useful in various ways even for safety properties, the length of a g ..."
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Abstract-We consider generalized counterexamples in the context of liveness property checking. A generalized counterexample comprises only a subset of values necessary to establish the existence of a concrete counterexample. While useful in various ways even for safety properties, the length of a

The Large-Scale Organization of Metabolic Networks

by H. Jeong, B. Tombor, R. Albert, Z. N. Oltvai, A.-L. Barabási , 2000
"... In a cell or microorganism the processes that generate mass, energy, information transfer, and cell fate specification are seamlessly integrated through a complex network of various cellular constituents and reactions. However, despite the key role these networks play in sustaining various cellular ..."
Abstract - Cited by 609 (7 self) - Add to MetaCart
, these metabolic networks display the same topologic scaling properties demonstrating striking similarities to the inherent organization of complex non-biological systems. This suggests that the metabolic organization is not only identical for all living organisms, but complies with the design principles of robust

Safety and Liveness Properties: A Survey

by Ekkart Kindler
"... The distinction of safety and liveness properties is often adopted in specification and design methods for distributed systems. We present a short survey on the "history" of these concepts and on papers that contributed to their general acceptance. ..."
Abstract - Cited by 15 (1 self) - Add to MetaCart
The distinction of safety and liveness properties is often adopted in specification and design methods for distributed systems. We present a short survey on the "history" of these concepts and on papers that contributed to their general acceptance.

Measurement and Analysis of Online Social Networks

by Alan Mislove, Massimiliano Marcon, Krishna P. Gummadi, Peter Druschel, Bobby Bhattacharjee - In Proceedings of the 5th ACM/USENIX Internet Measurement Conference (IMC’07 , 2007
"... Online social networking sites like Orkut, YouTube, and Flickr are among the most popular sites on the Internet. Users of these sites form a social network, which provides a powerful means of sharing, organizing, and finding content and contacts. The popularity of these sites provides an opportunity ..."
Abstract - Cited by 698 (14 self) - Add to MetaCart
of multiple online social networks. We examine data gathered from four popular online social networks: Flickr, YouTube, LiveJournal, and Orkut. We crawled the publicly accessible user links on each site, obtaining a large portion of each social network’s graph. Our data set contains over 11.3 million users

Pastry: Scalable, decentralized object location and routing for large-scale peer-to-peer systems

by Antony Rowstron , Peter Druschel - IN PROC. OF THE 18TH IFIP/ACM INTERNATIONAL CONFERENCE ON DISTRIBUTED SYSTEMS PLATFORMS, , 2001
"... This paper presents the design and evaluation of Pastry, a scalable, distributed object location and routing substrate for wide-area peer-to-peer applications. Pastry performs application-level routing and object location in a potentially very large overlay network of nodes connected via the Intern ..."
Abstract - Cited by 1932 (1 self) - Add to MetaCart
to the node with a nodeId that is numerically closest to the key, among all currently live Pastry nodes. Each Pastry node keeps track of its immediate neighbors in the nodeId space, and notifies applications of new node arrivals, node failures and recoveries. Pastry takes into account network locality

Group formation in large social networks: membership, growth, and evolution

by Lars Backstrom, Dan Huttenlocher, Jon Kleinberg, Xiangyang Lan - IN KDD ’06: PROCEEDINGS OF THE 12TH ACM SIGKDD INTERNATIONAL CONFERENCE ON KNOWLEDGE DISCOVERY AND DATA MINING , 2006
"... The processes by which communities come together, attract new members, and develop over time is a central research issue in the social sciences — political movements, professional organizations, and religious denominations all provide fundamental examples of such communities. In the digital domain, ..."
Abstract - Cited by 496 (19 self) - Add to MetaCart
: friendship links and community membership on LiveJournal, and co-authorship and conference publications in DBLP. Both of these datasets provide explicit user-defined communities, where conferences serve as proxies for communities in DBLP. We study how the evolution of these communities relates to properties

Proving Liveness Properties of Concurrent Programs

by Susan Owlcki
"... A liveness property asserts that program execution eventually reaches some desirable state. While termination has been studied extensively, many other liveness properties are important for concurrent programs. A formal proof method, based on temporal logic, for deriving liveness properties is prese ..."
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A liveness property asserts that program execution eventually reaches some desirable state. While termination has been studied extensively, many other liveness properties are important for concurrent programs. A formal proof method, based on temporal logic, for deriving liveness properties

Verification of Liveness Properties in Distributed Systems

by Divakar Yadav, Michael Butler
"... Abstract. This paper presents liveness properties that need to be pre-served by Event-B models of distributed systems. Event-B is a formal technique for development of models of distributed systems related via refinement. In this paper we outline how enabledness preservation and non-divergence are r ..."
Abstract - Cited by 1 (0 self) - Add to MetaCart
Abstract. This paper presents liveness properties that need to be pre-served by Event-B models of distributed systems. Event-B is a formal technique for development of models of distributed systems related via refinement. In this paper we outline how enabledness preservation and non

Deterministic omega-Regular Liveness Properties

by Frank Nießner, Ulrich Nitsche, Peter Ochsenschläger , 1997
"... A major drawback for the use of automated verification techniques is the complexity of verification algorithms in general. One of the sources of the algorithms' complexity is the difference between the language classes accepted by deterministic and nondeterministic Büchi-automata respective ..."
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be complemented rather easily. Since the class of safety properties is known to be representable deterministically, taking into account that safety properties are the closed sets in the Cantor topology, it suffices for us to identify nontrivial deterministic !-regular liveness properties.
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