12 Search Results for "Raymond, Jean-Florent"

Document
DOI: 10.4230/LIPIcs.ISAAC.2022.12
Complexity and Algorithms for ISOMETRIC PATH COVER on Chordal Graphs and Beyond

Authors: Dibyayan Chakraborty, Antoine Dailly, Sandip Das, Florent Foucaud, Harmender Gahlawat, and Subir Kumar Ghosh

Published in: LIPIcs, Volume 248, 33rd International Symposium on Algorithms and Computation (ISAAC 2022)

Abstract
A path is isometric if it is a shortest path between its endpoints. In this article, we consider the graph covering problem Isometric Path Cover, where we want to cover all the vertices of the graph using a minimum-size set of isometric paths. Although this problem has been considered from a structural point of view (in particular, regarding applications to pursuit-evasion games), it is little studied from the algorithmic perspective. We consider Isometric Path Cover on chordal graphs, and show that the problem is NP-hard for this class. On the positive side, for chordal graphs, we design a 4-approximation algorithm and an FPT algorithm for the parameter solution size. The approximation algorithm is based on a reduction to the classic path covering problem on a suitable directed acyclic graph obtained from a breadth first search traversal of the graph. The approximation ratio of our algorithm is 3 for interval graphs and 2 for proper interval graphs. Moreover, we extend the analysis of our approximation algorithm to k-chordal graphs (graphs whose induced cycles have length at most k) by showing that it has an approximation ratio of k+7 for such graphs, and to graphs of treelength at most 𝓁, where the approximation ratio is at most 6𝓁+2.
Cite as

Dibyayan Chakraborty, Antoine Dailly, Sandip Das, Florent Foucaud, Harmender Gahlawat, and Subir Kumar Ghosh. Complexity and Algorithms for ISOMETRIC PATH COVER on Chordal Graphs and Beyond. In 33rd International Symposium on Algorithms and Computation (ISAAC 2022). Leibniz International Proceedings in Informatics (LIPIcs), Volume 248, pp. 12:1-12:17, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2022)

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@InProceedings{chakraborty_et_al:LIPIcs.ISAAC.2022.12,
  author =	{Chakraborty, Dibyayan and Dailly, Antoine and Das, Sandip and Foucaud, Florent and Gahlawat, Harmender and Ghosh, Subir Kumar},
  title =	{{Complexity and Algorithms for ISOMETRIC PATH COVER on Chordal Graphs and Beyond}},
  booktitle =	{33rd International Symposium on Algorithms and Computation (ISAAC 2022)},
  pages =	{12:1--12:17},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-258-7},
  ISSN =	{1868-8969},
  year =	{2022},
  volume =	{248},
  editor =	{Bae, Sang Won and Park, Heejin},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/LIPIcs.ISAAC.2022.12},
  URN =		{urn:nbn:de:0030-drops-172974},
  doi =		{10.4230/LIPIcs.ISAAC.2022.12},
  annote =	{Keywords: Shortest paths, Isometric path cover, Chordal graph, Interval graph, AT-free graph, Approximation algorithm, FPT algorithm, Treewidth, Chordality, Treelength}
}
Document
DOI: 10.4230/LIPIcs.STACS.2019.16
Enumerating Minimal Dominating Sets in Triangle-Free Graphs

Authors: Marthe Bonamy, Oscar Defrain, Marc Heinrich, and Jean-Florent Raymond

Published in: LIPIcs, Volume 126, 36th International Symposium on Theoretical Aspects of Computer Science (STACS 2019)

Abstract
It is a long-standing open problem whether the minimal dominating sets of a graph can be enumerated in output-polynomial time. In this paper we prove that this is the case in triangle-free graphs. This answers a question of Kanté et al. Additionally, we show that deciding if a set of vertices of a bipartite graph can be completed into a minimal dominating set is a NP-complete problem.
Cite as

Marthe Bonamy, Oscar Defrain, Marc Heinrich, and Jean-Florent Raymond. Enumerating Minimal Dominating Sets in Triangle-Free Graphs. In 36th International Symposium on Theoretical Aspects of Computer Science (STACS 2019). Leibniz International Proceedings in Informatics (LIPIcs), Volume 126, pp. 16:1-16:12, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2019)

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@InProceedings{bonamy_et_al:LIPIcs.STACS.2019.16,
  author =	{Bonamy, Marthe and Defrain, Oscar and Heinrich, Marc and Raymond, Jean-Florent},
  title =	{{Enumerating Minimal Dominating Sets in Triangle-Free Graphs}},
  booktitle =	{36th International Symposium on Theoretical Aspects of Computer Science (STACS 2019)},
  pages =	{16:1--16:12},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-100-9},
  ISSN =	{1868-8969},
  year =	{2019},
  volume =	{126},
  editor =	{Niedermeier, Rolf and Paul, Christophe},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/LIPIcs.STACS.2019.16},
  URN =		{urn:nbn:de:0030-drops-102557},
  doi =		{10.4230/LIPIcs.STACS.2019.16},
  annote =	{Keywords: Enumeration algorithms, output-polynomial algorithms, minimal dominating set, triangle-free graphs, split graphs}
}
Document
DOI: 10.4230/LIPIcs.STACS.2019.32
Lean Tree-Cut Decompositions: Obstructions and Algorithms

Authors: Archontia C. Giannopoulou, O-joung Kwon, Jean-Florent Raymond, and Dimitrios M. Thilikos

Published in: LIPIcs, Volume 126, 36th International Symposium on Theoretical Aspects of Computer Science (STACS 2019)

Abstract
The notion of tree-cut width has been introduced by Wollan in [The structure of graphs not admitting a fixed immersion, Journal of Combinatorial Theory, Series B, 110:47 - 66, 2015]. It is defined via tree-cut decompositions, which are tree-like decompositions that highlight small (edge) cuts in a graph. In that sense, tree-cut decompositions can be seen as an edge-version of tree-decompositions and have algorithmic applications on problems that remain intractable on graphs of bounded treewidth. In this paper, we prove that every graph admits an optimal tree-cut decomposition that satisfies a certain Menger-like condition similar to that of the lean tree decompositions of Thomas [A Menger-like property of tree-width: The finite case, Journal of Combinatorial Theory, Series B, 48(1):67 - 76, 1990]. This allows us to give, for every k in N, an upper-bound on the number immersion-minimal graphs of tree-cut width k. Our results imply the constructive existence of a linear FPT-algorithm for tree-cut width.
Cite as

Archontia C. Giannopoulou, O-joung Kwon, Jean-Florent Raymond, and Dimitrios M. Thilikos. Lean Tree-Cut Decompositions: Obstructions and Algorithms. In 36th International Symposium on Theoretical Aspects of Computer Science (STACS 2019). Leibniz International Proceedings in Informatics (LIPIcs), Volume 126, pp. 32:1-32:14, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2019)

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@InProceedings{giannopoulou_et_al:LIPIcs.STACS.2019.32,
  author =	{Giannopoulou, Archontia C. and Kwon, O-joung and Raymond, Jean-Florent and Thilikos, Dimitrios M.},
  title =	{{Lean Tree-Cut Decompositions: Obstructions and Algorithms}},
  booktitle =	{36th International Symposium on Theoretical Aspects of Computer Science (STACS 2019)},
  pages =	{32:1--32:14},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-100-9},
  ISSN =	{1868-8969},
  year =	{2019},
  volume =	{126},
  editor =	{Niedermeier, Rolf and Paul, Christophe},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/LIPIcs.STACS.2019.32},
  URN =		{urn:nbn:de:0030-drops-102716},
  doi =		{10.4230/LIPIcs.STACS.2019.32},
  annote =	{Keywords: tree-cut width, lean decompositions, immersions, obstructions, parameterized algorithms}
}
Document
DOI: 10.4230/LIPIcs.ESA.2018.30
On the Tractability of Optimization Problems on H-Graphs

Authors: Fedor V. Fomin, Petr A. Golovach, and Jean-Florent Raymond

Published in: LIPIcs, Volume 112, 26th Annual European Symposium on Algorithms (ESA 2018)

Abstract
For a graph H, a graph G is an H-graph if it is an intersection graph of connected subgraphs of some subdivision of H. These graphs naturally generalize several important graph classes like interval graphs or circular-arc graph. This notion was introduced in the early 1990s by Biro, Hujter, and Tuza. Recently, Chaplick et al. initiated the algorithmic study of H-graphs by showing that a number of fundamental optimization problems like Clique, Independent Set, or Dominating Set are solvable in polynomial time on H-graphs. We extend and complement these algorithmic findings in several directions. First we show that for every fixed H, the class of H-graphs is of logarithmically-bounded boolean-width. We also prove that H-graphs are graphs with polynomially many minimal separators. Pipelined with the plethora of known algorithms on graphs of bounded boolean-width and graphs with polynomially many minimal separators, this describes a large class of optimization problems that are solvable in polynomial time on H-graphs. The most fundamental optimization problems among those solvable in polynomial time on H-graphs are Clique, Independent Set, and Dominating Set. We provide a more refined complexity analysis of these problems from the perspective of parameterized complexity. We show that Independent Set and Dominating Set are W[1]-hard being parameterized by the size of H plus the size of the solution. On the other hand, we prove that when H is a tree, Dominating Set is fixed-parameter tractable (FPT) parameterized by the size of H. Besides, we show that Clique admits a polynomial kernel parameterized by H and the solution size.
Cite as

Fedor V. Fomin, Petr A. Golovach, and Jean-Florent Raymond. On the Tractability of Optimization Problems on H-Graphs. In 26th Annual European Symposium on Algorithms (ESA 2018). Leibniz International Proceedings in Informatics (LIPIcs), Volume 112, pp. 30:1-30:14, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)

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@InProceedings{fomin_et_al:LIPIcs.ESA.2018.30,
  author =	{Fomin, Fedor V. and Golovach, Petr A. and Raymond, Jean-Florent},
  title =	{{On the Tractability of Optimization Problems on H-Graphs}},
  booktitle =	{26th Annual European Symposium on Algorithms (ESA 2018)},
  pages =	{30:1--30:14},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-081-1},
  ISSN =	{1868-8969},
  year =	{2018},
  volume =	{112},
  editor =	{Azar, Yossi and Bast, Hannah and Herman, Grzegorz},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/LIPIcs.ESA.2018.30},
  URN =		{urn:nbn:de:0030-drops-94930},
  doi =		{10.4230/LIPIcs.ESA.2018.30},
  annote =	{Keywords: H-topological intersection graphs, parameterized complexity, minimal separators, boolean-width, mim-width}
}
Document
DOI: 10.4230/LIPIcs.ICALP.2017.57
Linear Kernels for Edge Deletion Problems to Immersion-Closed Graph Classes

Authors: Archontia C. Giannopoulou, Michal Pilipczuk, Jean-Florent Raymond, Dimitrios M. Thilikos, and Marcin Wrochna

Published in: LIPIcs, Volume 80, 44th International Colloquium on Automata, Languages, and Programming (ICALP 2017)

Abstract
Suppose F is a finite family of graphs. We consider the following meta-problem, called F-Immersion Deletion: given a graph G and an integer k, decide whether the deletion of at most k edges of G can result in a graph that does not contain any graph from F as an immersion. This problem is a close relative of the F-Minor Deletion problem studied by Fomin et al. [FOCS 2012], where one deletes vertices in order to remove all minor models of graphs from F. We prove that whenever all graphs from F are connected and at least one graph of F is planar and subcubic, then the F-Immersion Deletion problem admits: - a constant-factor approximation algorithm running in time O(m^3 n^3 log m) - a linear kernel that can be computed in time O(m^4 n^3 log m) and - a O(2^{O(k)} + m^4 n^3 log m)-time fixed-parameter algorithm, where n,m count the vertices and edges of the input graph. Our findings mirror those of Fomin et al. [FOCS 2012], who obtained similar results for F-Minor Deletion, under the assumption that at least one graph from F is planar. An important difference is that we are able to obtain a linear kernel for F-Immersion Deletion, while the exponent of the kernel of Fomin et al. depends heavily on the family F. In fact, this dependence is unavoidable under plausible complexity assumptions, as proven by Giannopoulou et al. [ICALP 2015]. This reveals that the kernelization complexity of F-Immersion Deletion is quite different than that of F-Minor Deletion.
Cite as

Archontia C. Giannopoulou, Michal Pilipczuk, Jean-Florent Raymond, Dimitrios M. Thilikos, and Marcin Wrochna. Linear Kernels for Edge Deletion Problems to Immersion-Closed Graph Classes. In 44th International Colloquium on Automata, Languages, and Programming (ICALP 2017). Leibniz International Proceedings in Informatics (LIPIcs), Volume 80, pp. 57:1-57:15, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)

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@InProceedings{giannopoulou_et_al:LIPIcs.ICALP.2017.57,
  author =	{Giannopoulou, Archontia C. and Pilipczuk, Michal and Raymond, Jean-Florent and Thilikos, Dimitrios M. and Wrochna, Marcin},
  title =	{{Linear Kernels for Edge Deletion Problems to Immersion-Closed Graph Classes}},
  booktitle =	{44th International Colloquium on Automata, Languages, and Programming (ICALP 2017)},
  pages =	{57:1--57:15},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-041-5},
  ISSN =	{1868-8969},
  year =	{2017},
  volume =	{80},
  editor =	{Chatzigiannakis, Ioannis and Indyk, Piotr and Kuhn, Fabian and Muscholl, Anca},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/LIPIcs.ICALP.2017.57},
  URN =		{urn:nbn:de:0030-drops-73891},
  doi =		{10.4230/LIPIcs.ICALP.2017.57},
  annote =	{Keywords: Kernelization, Approximation, Immersion, Protrusion, Tree-cut width}
}
Document
DOI: 10.4230/LIPIcs.IPEC.2016.15
Cutwidth: Obstructions and Algorithmic Aspects

Authors: Archontia C. Giannopoulou, Michal Pilipczuk, Jean-Florent Raymond, Dimitrios M. Thilikos, and Marcin Wrochna

Published in: LIPIcs, Volume 63, 11th International Symposium on Parameterized and Exact Computation (IPEC 2016)

Abstract
Cutwidth is one of the classic layout parameters for graphs. It measures how well one can order the vertices of a graph in a linear manner, so that the maximum number of edges between any prefix and its complement suffix is minimized. As graphs of cutwidth at most k are closed under taking immersions, the results of Robertson and Seymour imply that there is a finite list of minimal immersion obstructions for admitting a cut layout of width at most k. We prove that every minimal immersion obstruction for cutwidth at most k has size at most 2^O(k^3*log(k)). As an interesting algorithmic byproduct, we design a new fixed-parameter algorithm for computing the cutwidth of a graph that runs in time 2^O(k^2*log(k))*n, where k is the optimum width and n is the number of vertices. While being slower by a log k-factor in the exponent than the fastest known algorithm, due to Thilikos, Bodlaender, and Serna [J. Algorithms 2005], our algorithm has the advantage of being simpler and self-contained; arguably, it explains better the combinatorics of optimum-width layouts.
Cite as

Archontia C. Giannopoulou, Michal Pilipczuk, Jean-Florent Raymond, Dimitrios M. Thilikos, and Marcin Wrochna. Cutwidth: Obstructions and Algorithmic Aspects. In 11th International Symposium on Parameterized and Exact Computation (IPEC 2016). Leibniz International Proceedings in Informatics (LIPIcs), Volume 63, pp. 15:1-15:13, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)

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@InProceedings{giannopoulou_et_al:LIPIcs.IPEC.2016.15,
  author =	{Giannopoulou, Archontia C. and Pilipczuk, Michal and Raymond, Jean-Florent and Thilikos, Dimitrios M. and Wrochna, Marcin},
  title =	{{Cutwidth: Obstructions and Algorithmic Aspects}},
  booktitle =	{11th International Symposium on Parameterized and Exact Computation (IPEC 2016)},
  pages =	{15:1--15:13},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-023-1},
  ISSN =	{1868-8969},
  year =	{2017},
  volume =	{63},
  editor =	{Guo, Jiong and Hermelin, Danny},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/LIPIcs.IPEC.2016.15},
  URN =		{urn:nbn:de:0030-drops-69306},
  doi =		{10.4230/LIPIcs.IPEC.2016.15},
  annote =	{Keywords: cutwidth, obstructions, immersions, fixed-parameter tractability}
}
Document
DOI: 10.4230/DagSemProc.09381.1
09381 Extended Abstracts Collection – Refinement Based Methods for the Construction of Dependable Systems

Authors: Jean-Raymond Abrial, Michael Butler, Rajev Joshi, Elena Troubitsyna, and Jim C. P. Woodcock

Published in: Dagstuhl Seminar Proceedings, Volume 9381, Refinement Based Methods for the Construction of Dependable Systems (2010)

Abstract
With our growing reliance on computers, the total societal costs of their failures are hard to underestimate. Nowadays computers control critical systems from various domains such as aerospace, automotive, railway, business etc. Obviously, such systems must have a high degree of dependability – a degree of trust that can be justifiably placed on them. Although the currently operating systems do have an acceptable level of dependability, we believe that they development process is still rather immature and ad-hoc. The constantly growing system complexity poses an increasing challenge on the system developers and requires significant improvement on the existing developing practice. To address this problem, we investigated how to establish a set of refinement-based engineering methods that can provide the designers with a systematic methodology for development of complex systems.
Cite as

Jean-Raymond Abrial, Michael Butler, Rajev Joshi, Elena Troubitsyna, and Jim C. P. Woodcock. 09381 Extended Abstracts Collection – Refinement Based Methods for the Construction of Dependable Systems. In Refinement Based Methods for the Construction of Dependable Systems. Dagstuhl Seminar Proceedings, Volume 9381, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2010)

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@InProceedings{abrial_et_al:DagSemProc.09381.1,
  author =	{Abrial, Jean-Raymond and Butler, Michael and Joshi, Rajev and Troubitsyna, Elena and Woodcock, Jim C. P.},
  title =	{{09381 Extended Abstracts Collection – Refinement Based Methods for the Construction of Dependable Systems}},
  booktitle =	{Refinement Based Methods for the Construction of Dependable Systems},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2010},
  volume =	{9381},
  editor =	{Jean-Raymond Abrial and Michael Butler and Rajeev Joshi and Elena Troubitsyna and Jim C. P. Woodcock},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.09381.1},
  URN =		{urn:nbn:de:0030-drops-23746},
  doi =		{10.4230/DagSemProc.09381.1},
  annote =	{Keywords: Specification, refinement, verification, modelling, dependable systems}
}
Document
DOI: 10.4230/DagSemProc.06191.1
06191 Abstracts Collection – Rigorous Methods for Software Construction and Analysis

Authors: Jean-Raymond Abrial and Uwe Glässer

Published in: Dagstuhl Seminar Proceedings, Volume 6191, Rigorous Methods for Software Construction and Analysis (2006)

Abstract
From 07.05.06 to 12.05.06, the Dagstuhl Seminar 06191 ``Rigorous Methods for Software Construction and Analysis'' was held in the International Conference and Research Center (IBFI), Schloss Dagstuhl. During the seminar, several participants presented their current research, and ongoing work and open problems were discussed. Abstracts of the presentations given during the seminar as well as abstracts of seminar results and ideas are put together in this paper. The first section describes the seminar topics and goals in general. Links to extended abstracts or full papers are provided, if available.
Cite as

Jean-Raymond Abrial and Uwe Glässer. 06191 Abstracts Collection – Rigorous Methods for Software Construction and Analysis. In Rigorous Methods for Software Construction and Analysis. Dagstuhl Seminar Proceedings, Volume 6191, pp. 1-16, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2006)

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@InProceedings{abrial_et_al:DagSemProc.06191.1,
  author =	{Abrial, Jean-Raymond and Gl\"{a}sser, Uwe},
  title =	{{06191 Abstracts Collection – Rigorous Methods for Software Construction and Analysis}},
  booktitle =	{Rigorous Methods for Software Construction and Analysis},
  pages =	{1--16},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2006},
  volume =	{6191},
  editor =	{Jean-Raymond Abrial and Uwe Gl\"{a}sser},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.06191.1},
  URN =		{urn:nbn:de:0030-drops-6661},
  doi =		{10.4230/DagSemProc.06191.1},
  annote =	{Keywords: Formal Methods, Program Verification, Abstract State Machines, Event-B}
}
Document
DOI: 10.4230/DagSemProc.06191.2
06191 Summary – Rigorous Methods for Software Construction and Analysis

Authors: Jean-Raymond Abrial and Uwe Glässer

Published in: Dagstuhl Seminar Proceedings, Volume 6191, Rigorous Methods for Software Construction and Analysis (2006)

Abstract
We survey here the key objectives and the structure of the Dagstuhl Seminar 06191, which was organized as Festkolloquium on the occasion of Egon Börger’s 60th birthday, in May 2006 in Schloss Dagstuhl, Germany.
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Jean-Raymond Abrial and Uwe Glässer. 06191 Summary – Rigorous Methods for Software Construction and Analysis. In Rigorous Methods for Software Construction and Analysis. Dagstuhl Seminar Proceedings, Volume 6191, pp. 1-2, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2006)

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@InProceedings{abrial_et_al:DagSemProc.06191.2,
  author =	{Abrial, Jean-Raymond and Gl\"{a}sser, Uwe},
  title =	{{06191 Summary – Rigorous Methods for Software Construction and Analysis}},
  booktitle =	{Rigorous Methods for Software Construction and Analysis},
  pages =	{1--2},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2006},
  volume =	{6191},
  editor =	{Jean-Raymond Abrial and Uwe Gl\"{a}sser},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.06191.2},
  URN =		{urn:nbn:de:0030-drops-6656},
  doi =		{10.4230/DagSemProc.06191.2},
  annote =	{Keywords: Executive Summary}
}
Document
DOI: 10.4230/DagSemProc.06191.3
Animating and Model Checking B Specifications with Higher-Order Recursive Functions

Authors: Michael Leuschel and Jens Bendisposto

Published in: Dagstuhl Seminar Proceedings, Volume 6191, Rigorous Methods for Software Construction and Analysis (2006)

Abstract
Real-life specifications often contain complicated functions. Animation and validation of such functions and specifications is very important. However, such functions pose a major challenge to animation and model checking. Earlier versions of ProB required that functions be explicitly expanded which is prohibitively expensive or impossible. The central idea of this new research is to compile such functions into symbolic closures which are only examined when the function is applied to some particular argument. This enables ProB to successfully animate and model check a new class of specifications, where animation is especially important due to the involved nature of the specification. We will illustrate this new approach on an industrial case study.
Cite as

Michael Leuschel and Jens Bendisposto. Animating and Model Checking B Specifications with Higher-Order Recursive Functions. In Rigorous Methods for Software Construction and Analysis. Dagstuhl Seminar Proceedings, Volume 6191, pp. 1-3, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2006)

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@InProceedings{leuschel_et_al:DagSemProc.06191.3,
  author =	{Leuschel, Michael and Bendisposto, Jens},
  title =	{{Animating and Model Checking B Specifications with Higher-Order Recursive Functions}},
  booktitle =	{Rigorous Methods for Software Construction and Analysis},
  pages =	{1--3},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2006},
  volume =	{6191},
  editor =	{Jean-Raymond Abrial and Uwe Gl\"{a}sser},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.06191.3},
  URN =		{urn:nbn:de:0030-drops-6407},
  doi =		{10.4230/DagSemProc.06191.3},
  annote =	{Keywords: B-Method, Model Checking, Animation, Logic Programming, Visualization}
}
Document
DOI: 10.4230/DagSemProc.06191.4
Exploiting the ASM method within the Model-driven Engineering paradigm

Authors: Angelo Gargantini, Elvinia Riccobene, and Patrizia Scandurra

Published in: Dagstuhl Seminar Proceedings, Volume 6191, Rigorous Methods for Software Construction and Analysis (2006)

Abstract
Model-driven Engineering (MDE) is an emerging approach for software development. It uses metamodels to define language (or formalism) abstract notation, so separating the abstract syntax and semantics of the language from their different concrete notations. However, metamodelling frameworks lack of a way to specify the semantics of languages, which is usually given in natural language. We claim that the MDE paradigm can gain rigor and preciseness from the integration with formal approaches, and we propose the integration with the ASMs to define a unified methodology for metamodel-based language syntax and semantics definitions.
Cite as

Angelo Gargantini, Elvinia Riccobene, and Patrizia Scandurra. Exploiting the ASM method within the Model-driven Engineering paradigm. In Rigorous Methods for Software Construction and Analysis. Dagstuhl Seminar Proceedings, Volume 6191, pp. 1-2, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2006)

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@InProceedings{gargantini_et_al:DagSemProc.06191.4,
  author =	{Gargantini, Angelo and Riccobene, Elvinia and Scandurra, Patrizia},
  title =	{{Exploiting the ASM method within the Model-driven Engineering paradigm}},
  booktitle =	{Rigorous Methods for Software Construction and Analysis},
  pages =	{1--2},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2006},
  volume =	{6191},
  editor =	{Jean-Raymond Abrial and Uwe Gl\"{a}sser},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.06191.4},
  URN =		{urn:nbn:de:0030-drops-6384},
  doi =		{10.4230/DagSemProc.06191.4},
  annote =	{Keywords: Abstract State Machines, Model-driven Engineering, ASM Metamodel, Metamodelling}
}
Document
DOI: 10.4230/DagSemRep.117
Methods for Semantics and Specification (Dagstuhl Seminar 9523)

Authors: Jean-Raymond Abrial, Egon Börger, and Hans Langmaack

Published in: Dagstuhl Seminar Reports. Dagstuhl Seminar Reports, Volume 1 (2021)

Abstract
Cite as

Jean-Raymond Abrial, Egon Börger, and Hans Langmaack. Methods for Semantics and Specification (Dagstuhl Seminar 9523). Dagstuhl Seminar Report 117, pp. 1-27, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (1995)

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@TechReport{abrial_et_al:DagSemRep.117,
  author =	{Abrial, Jean-Raymond and B\"{o}rger, Egon and Langmaack, Hans},
  title =	{{Methods for Semantics and Specification (Dagstuhl Seminar 9523)}},
  pages =	{1--27},
  ISSN =	{1619-0203},
  year =	{1995},
  type = 	{Dagstuhl Seminar Report},
  number =	{117},
  institution =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemRep.117},
  URN =		{urn:nbn:de:0030-drops-150051},
  doi =		{10.4230/DagSemRep.117},
}
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