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Dagstuhl Seminar Proceedings, Volume 4241

Publication Details

  • published at: 2005-02-18
  • Publisher: Schloss Dagstuhl – Leibniz-Zentrum für Informatik

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Document
DOI: 10.4230/DagSemProc.04241.1
04241 Abstracts Collection – Graph Transformations and Process Algebras for Modeling Distributed and Mobile Systems

Authors: Barbara König, Ugo Montanari, and Philippa Gardner

Abstract
Recently there has been a lot of research, combining concepts of process algebra with those of the theory of graph grammars and graph transformation systems. Both can be viewed as general frameworks in which one can specify and reason about concurrent and distributed systems. There are many areas where both theories overlap and this reaches much further than just using graphs to give a graphic representation to processes. Processes in a communication network can be seen in two different ways: as terms in an algebraic theory, emphasizing their behaviour and their interaction with the environment, and as nodes (or edges) in a graph, emphasizing their topology and their connectedness. Especially topology, mobility and dynamic reconfigurations at runtime can be modelled in a very intuitive way using graph transformation. On the other hand the definition and proof of behavioural equivalences is often easier in the process algebra setting. Also standard techniques of algebraic semantics for universal constructions, refinement and compositionality can take better advantage of the process algebra representation. An important example where the combined theory is more convenient than both alternatives is for defining the concurrent (noninterleaving), abstract semantics of distributed systems. Here graph transformations lack abstraction and process algebras lack expressiveness. Another important example is the work on bigraphical reactive systems with the aim of deriving a labelled transitions system from an unlabelled reactive system such that the resulting bisimilarity is a congruence. Here, graphs seem to be a convenient framework, in which this theory can be stated and developed. So, although it is the central aim of both frameworks to model and reason about concurrent systems, the semantics of processes can have a very different flavour in these theories. Research in this area aims at combining the advantages of both frameworks and translating concepts of one theory into the other. The Dagsuthl Seminar, which took place from 06.06. to 11.06.2004, was aimed at bringing together researchers of the two communities in order to share their ideas and develop new concepts. These proceedings4 of the do not only contain abstracts of the talks given at the seminar, but also summaries of topics of central interest. We would like to thank all participants of the seminar for coming and sharing their ideas and everybody who has contributed to the proceedings.
Cite as

Barbara König, Ugo Montanari, and Philippa Gardner. 04241 Abstracts Collection – Graph Transformations and Process Algebras for Modeling Distributed and Mobile Systems. In Graph Transformations and Process Algebras for Modeling Distributed and Mobile Systems. Dagstuhl Seminar Proceedings, Volume 4241, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2005)

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@InProceedings{konig_et_al:DagSemProc.04241.1,
  author =	{K\"{o}nig, Barbara and Montanari, Ugo and Gardner, Philippa},
  title =	{{04241 Abstracts Collection – Graph Transformations and Process Algebras for Modeling Distributed and Mobile Systems}},
  booktitle =	{Graph Transformations and Process Algebras for Modeling Distributed and Mobile Systems},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2005},
  volume =	{4241},
  editor =	{Barbara K\"{o}nig and Ugo Montanari and Philippa Gardner},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.04241.1},
  URN =		{urn:nbn:de:0030-drops-279},
  doi =		{10.4230/DagSemProc.04241.1},
  annote =	{Keywords: graph transformation , process calculi}
}
Document
DOI: 10.4230/DagSemProc.04241.2
Summary 1: Adhesivity, Bigraphs and Bisimulation Congruences

Authors: Pawel Sobocinski

Abstract
This paper is intended as a short informal summary of some of the topics which arose at the Dagstuhl meeting held 6/06/04-11/06/04. In particular, we shall summarise some of the content of talks by H. Ehrig, F. Gadducci, O. H. Jensen, R. Milner, B. K�¶nig, V. Sassone and the author. The general areas include adhesive categories and generalisations, contextual labelled transition semantics for graph transformation systems via borrowed-contexts and GIPOs, and bigraphs. We shall conclude with a summary of some of the discussions which followed the aforementioned presentations.
Cite as

Pawel Sobocinski. Summary 1: Adhesivity, Bigraphs and Bisimulation Congruences. In Graph Transformations and Process Algebras for Modeling Distributed and Mobile Systems. Dagstuhl Seminar Proceedings, Volume 4241, pp. 1-12, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2005)

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@InProceedings{sobocinski:DagSemProc.04241.2,
  author =	{Sobocinski, Pawel},
  title =	{{Summary 1: Adhesivity, Bigraphs and Bisimulation Congruences}},
  booktitle =	{Graph Transformations and Process Algebras for Modeling Distributed and Mobile Systems},
  pages =	{1--12},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2005},
  volume =	{4241},
  editor =	{Barbara K\"{o}nig and Ugo Montanari and Philippa Gardner},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.04241.2},
  URN =		{urn:nbn:de:0030-drops-286},
  doi =		{10.4230/DagSemProc.04241.2},
  annote =	{Keywords: graph transformation , category theory , bisimulation}
}
Document
DOI: 10.4230/DagSemProc.04241.3
Summary 2: Graph Grammar Verification through Abstraction

Authors: Paolo Baldan, Barbara König, and Arend Rensink

Abstract
Until now there have been few contributions concerning the verification of graph grammars, specifically of infinite-state graph grammars. This paper compares two existing approaches, based on abstractions of graph transformation systems. While in the unfolding approach graph grammars are approximated by Petri nets, in the partitioning approach graphs are abstracted according to their local structure. We describe differences and similarities of the two approaches and explain the underlying ideas.
Cite as

Paolo Baldan, Barbara König, and Arend Rensink. Summary 2: Graph Grammar Verification through Abstraction. In Graph Transformations and Process Algebras for Modeling Distributed and Mobile Systems. Dagstuhl Seminar Proceedings, Volume 4241, pp. 1-9, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2005)

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@InProceedings{baldan_et_al:DagSemProc.04241.3,
  author =	{Baldan, Paolo and K\"{o}nig, Barbara and Rensink, Arend},
  title =	{{Summary 2: Graph Grammar Verification through Abstraction}},
  booktitle =	{Graph Transformations and Process Algebras for Modeling Distributed and Mobile Systems},
  pages =	{1--9},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2005},
  volume =	{4241},
  editor =	{Barbara K\"{o}nig and Ugo Montanari and Philippa Gardner},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.04241.3},
  URN =		{urn:nbn:de:0030-drops-291},
  doi =		{10.4230/DagSemProc.04241.3},
  annote =	{Keywords: graph transformation , verification}
}
Document
DOI: 10.4230/DagSemProc.04241.4
Summary 3: On Graph(ic) Encodings

Authors: Roberto Bruni and Ivan Lanese

Abstract
This paper is an informal summary of different encoding techniques from process calculi and distributed formalisms to graphic frameworks. The survey includes the use of solo diagrams, term graphs, synchronized hyperedge replacement systems, bigraphs, tile models and interactive systems, all presented at the Dagstuhl Seminar 04241. The common theme of all techniques recalled here is having a graphic presentation that, at the same time, gives both an intuitive visual rendering (of processes, states, etc.) and a rigorous mathematical framework.
Cite as

Roberto Bruni and Ivan Lanese. Summary 3: On Graph(ic) Encodings. In Graph Transformations and Process Algebras for Modeling Distributed and Mobile Systems. Dagstuhl Seminar Proceedings, Volume 4241, pp. 1-15, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2005)

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@InProceedings{bruni_et_al:DagSemProc.04241.4,
  author =	{Bruni, Roberto and Lanese, Ivan},
  title =	{{Summary 3: On Graph(ic) Encodings}},
  booktitle =	{Graph Transformations and Process Algebras for Modeling Distributed and Mobile Systems},
  pages =	{1--15},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2005},
  volume =	{4241},
  editor =	{Barbara K\"{o}nig and Ugo Montanari and Philippa Gardner},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.04241.4},
  URN =		{urn:nbn:de:0030-drops-303},
  doi =		{10.4230/DagSemProc.04241.4},
  annote =	{Keywords: graph transformation , process calculi , encodings}
}

Filters

  • Authors
  • B
  • Baldan, Paolo
  • Bruni, Roberto
  • G
  • Gardner, Philippa
  • K
  • König, Barbara
  • L
  • Lanese, Ivan
  • M
  • Montanari, Ugo
  • R
  • Rensink, Arend
  • S
  • Sobocinski, Pawel

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