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Author Mari, Federico; Melatti, Igor; Salvo, Ivano; Tronci, Enrico; Alvisi, Lorenzo; Clement, Allen; Li, Harry
Title Model Checking Coalition Nash Equilibria in MAD Distributed Systems Type Conference Article
Year 2009 Publication Stabilization, Safety, and Security of Distributed Systems, 11th International Symposium, SSS 2009, Lyon, France, November 3-6, 2009. Proceedings Abbreviated Journal
Volume Issue Pages 531-546
Keywords
Abstract We present two OBDD based model checking algorithms for the verification of Nash equilibria in finite state mechanisms modeling Multiple Administrative Domains (MAD) distributed systems with possibly colluding agents (coalitions) and with possibly faulty or malicious nodes (Byzantine agents). Given a finite state mechanism, a proposed protocol for each agent and the maximum sizes f for Byzantine agents and q for agents collusions, our model checkers return Pass if the proposed protocol is an ε-f-q-Nash equilibrium, i.e. no coalition of size up to q may have an interest greater than ε in deviating from the proposed protocol when up to f Byzantine agents are present, Fail otherwise. We implemented our model checking algorithms within the NuSMV model checker: the first one explicitly checks equilibria for each coalition, while the second represents symbolically all coalitions. We present experimental results showing their effectiveness for moderate size mechanisms. For example, we can verify coalition Nash equilibria for mechanisms which corresponding normal form games would have more than $5 \times 10^21$ entries. Moreover, we compare the two approaches, and the explicit algorithm turns out to outperform the symbolic one. To the best of our knowledge, no model checking algorithm for verification of Nash equilibria of mechanisms with coalitions has been previously published.
Address
Corporate Author Thesis
Publisher Springer Place of Publication Editor Guerraoui, R.; Petit, F.
Language Summary Language Original Title (down)
Series Editor Series Title Lecture Notes in Computer Science Abbreviated Series Title
Series Volume 5873 Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Sapienza @ mari @ sss09 Serial 19
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Author Mazzini, Silvia; Puri, Stefano; Mari, Federico; Melatti, Igor; Tronci, Enrico
Title Formal Verification at System Level Type Conference Article
Year 2009 Publication In: DAta Systems In Aerospace (DASIA), Org. EuroSpace, Canadian Space Agency, CNES, ESA, EUMETSAT. Instanbul, Turkey, EuroSpace Abbreviated Journal
Volume Issue Pages
Keywords
Abstract System Level Analysis calls for a language comprehensible to experts with different background and yet precise enough to support meaningful analyses. SysML is emerging as an effective balance between such conflicting goals. In this paper we outline some the results obtained as for SysML based system level functional formal verification by an ESA/ESTEC study, with a collaboration among INTECS and La Sapienza University of Roma. The study focuses on SysML based system level functional requirements techniques.
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Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title (down)
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Sapienza @ mari @ Dasia09 Serial 20
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Author Cesta, Amedeo; Finzi, Alberto; Fratini, Simone; Orlandini, Andrea; Tronci, Enrico
Title Flexible Timeline-Based Plan Verification Type Conference Article
Year 2009 Publication KI 2009: Advances in Artificial Intelligence, 32nd Annual German Conference on AI, Paderborn, Germany, September 15-18, 2009. Proceedings Abbreviated Journal
Volume Issue Pages 49-56
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Abstract
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Corporate Author Thesis
Publisher Springer Place of Publication Editor Mertsching, Bärbel; Hund, M.; Aziz, M.Z.
Language Summary Language Original Title (down)
Series Editor Series Title Lecture Notes in Computer Science Abbreviated Series Title
Series Volume 5803 Series Issue Edition
ISSN 978-3-642-04616-2 ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Sapienza @ mari @ Cffot09 Serial 21
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Author Cesta, Amedeo; Finzi, Alberto; Fratini, Simone; Orlandini, Andrea; Tronci, Enrico
Title Flexible Plan Verification: Feasibility Results Type Conference Article
Year 2009 Publication 16th RCRA International Workshop on “Experimental evaluation of algorithms for solving problems with combinatorial explosion” (RCRA). Proceedings Abbreviated Journal
Volume Issue Pages
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Abstract
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Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title (down)
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Sapienza @ mari @ Rcra09 Serial 22
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Author Bobbio, Andrea; Ciancamerla, Ester; Minichino, Michele; Tronci, Enrico
Title Functional analysis of a telecontrol system and stochastic measures of its GSM/GPRS connections Type Journal Article
Year 2005 Publication Archives of Transport – International Journal of Transport Problems Abbreviated Journal
Volume 17 Issue 3-4 Pages
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Abstract
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Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title (down)
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Sapienza @ mari @ jtp05 Serial 31
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Author Campagnano, Edoardo; Ciancamerla, Ester; Minichino, Michele; Tronci, Enrico
Title Automatic Analysis of a Safety Critical Tele Control System Type Conference Article
Year 2005 Publication 24th International Conference on: Computer Safety, Reliability, and Security (SAFECOMP) Abbreviated Journal
Volume Issue Pages 94-107
Keywords
Abstract We show how the Mur$\varphi$ model checker can be used to automatically carry out safety analysis of a quite complex hybrid system tele-controlling vehicles traffic inside a safety critical transport infrastructure such as a long bridge or a tunnel. We present the Mur$\varphi$ model we developed towards this end as well as the experimental results we obtained by running the Mur$\varphi$ verifier on our model. Our experimental results show that the approach presented here can be used to verify safety of critical dimensioning parameters (e.g. bandwidth) of the telecommunication network embedded in a safety critical system.
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Corporate Author Thesis
Publisher Springer Place of Publication Fredrikstad, Norway Editor Winther, R.; Gran, B. A.; Dahll, G.
Language Summary Language Original Title (down)
Series Editor Series Title Lecture Notes in Computer Science Abbreviated Series Title
Series Volume 3688 Series Issue Edition
ISSN 3-540-29200-4 ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Sapienza @ mari @ safecomp05 Serial 32
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Author Martinelli, Marco; Tronci, Enrico; Dipoppa, Giovanni; Balducelli, Claudio
Title Electric Power System Anomaly Detection Using Neural Networks Type Conference Article
Year 2004 Publication 8th International Conference on: Knowledge-Based Intelligent Information and Engineering Systems (KES) Abbreviated Journal
Volume Issue Pages 1242-1248
Keywords
Abstract The aim of this work is to propose an approach to monitor and protect Electric Power System by learning normal system behaviour at substations level, and raising an alarm signal when an abnormal status is detected; the problem is addressed by the use of autoassociative neural networks, reading substation measures. Experimental results show that, through the proposed approach, neural networks can be used to learn parameters underlaying system behaviour, and their output processed to detecting anomalies due to hijacking of measures, changes in the power network topology (i.e. transmission lines breaking) and unexpected power demand trend.
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Corporate Author Thesis
Publisher Springer Place of Publication Wellington, New Zealand Editor Negoita, M.G.; Howlett, R.J.; Jain, L.C.
Language Summary Language Original Title (down)
Series Editor Series Title Lecture Notes in Computer Science Abbreviated Series Title
Series Volume 3213 Series Issue Edition
ISSN 3-540-23318-0 ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Sapienza @ mari @ kes04 Serial 35
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Author
Title Charme Type Conference Article
Year 2003 Publication Lecture Notes in Computer Science Abbreviated Journal
Volume 2860 Issue Pages
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Abstract
Address
Corporate Author Thesis
Publisher Springer Place of Publication Editor Geist, D.; Tronci, E.
Language Summary Language Original Title (down)
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 3-540-20363-X ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Sapienza @ mari @ editor-charme03 Serial 37
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Author Gribaudo, Marco; Horváth, Andras; Bobbio, Andrea; Tronci, Enrico; Ciancamerla, Ester; Minichino, Michele
Title Fluid Petri Nets and hybrid model checking: a comparative case study Type Journal Article
Year 2003 Publication Int. Journal on: Reliability Engineering & System Safety Abbreviated Journal
Volume 81 Issue 3 Pages 239-257
Keywords
Abstract The modeling and analysis of hybrid systems is a recent and challenging research area which is actually dominated by two main lines: a functional analysis based on the description of the system in terms of discrete state (hybrid) automata (whose goal is to ascertain conformity and reachability properties), and a stochastic analysis (whose aim is to provide performance and dependability measures). This paper investigates a unifying view between formal methods and stochastic methods by proposing an analysis methodology of hybrid systems based on Fluid Petri Nets (FPNs). FPNs can be analyzed directly using appropriate tools. Our paper shows that the same FPN model can be fed to different functional analyzers for model checking. In order to extensively explore the capability of the technique, we have converted the original FPN into languages for discrete as well as hybrid as well as stochastic model checkers. In this way, a first comparison among the modeling power of well known tools can be carried out. Our approach is illustrated by means of a ’real world’ hybrid system: the temperature control system of a co-generative plant.
Address
Corporate Author Thesis
Publisher Elsevier Place of Publication Editor
Language Summary Language Original Title (down)
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Sapienza @ mari @ ress03 Serial 40
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Author Della Penna, Giuseppe; Intrigila, Benedetto; Tronci, Enrico; Venturini Zilli, Marisa
Title Exploiting Transition Locality in the Disk Based Mur$\varphi$ Verifier Type Conference Article
Year 2002 Publication 4th International Conference on Formal Methods in Computer-Aided Design (FMCAD) Abbreviated Journal
Volume Issue Pages 202-219
Keywords
Abstract The main obstruction to automatic verification of Finite State Systems is the huge amount of memory required to complete the verification task (state explosion). This motivates research on distributed as well as disk based verification algorithms. In this paper we present a disk based Breadth First Explicit State Space Exploration algorithm as well as an implementation of it within the Mur$\varphi$ verifier. Our algorithm exploits transition locality (i.e. the statistical fact that most transitions lead to unvisited states or to recently visited states) to decrease disk read accesses thus reducing the time overhead due to disk usage. A disk based verification algorithm for Mur$\varphi$ has been already proposed in the literature. To measure the time speed up due to locality exploitation we compared our algorithm with such previously proposed algorithm. Our experimental results show that our disk based verification algorithm is typically more than 10 times faster than such previously proposed disk based verification algorithm. To measure the time overhead due to disk usage we compared our algorithm with RAM based verification using the (standard) Mur$\varphi$ verifier with enough memory to complete the verification task. Our experimental results show that even when using 1/10 of the RAM needed to complete verification, our disk based algorithm is only between 1.4 and 5.3 times (3 times on average) slower than (RAM) Mur$\varphi$ with enough RAM memory to complete the verification task at hand. Using our disk based Mur$\varphi$ we were able to complete verification of a protocol with about $10^9$ reachable states. This would require more than 5 gigabytes of RAM using RAM based Mur$\varphi$.
Address
Corporate Author Thesis
Publisher Springer Place of Publication Portland, OR, USA Editor Aagaard, M.; O'Leary, J.W.
Language Summary Language Original Title (down)
Series Editor Series Title Lecture Notes in Computer Science Abbreviated Series Title
Series Volume 2517 Series Issue Edition
ISSN 3-540-00116-6 ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Sapienza @ mari @ fmcad02 Serial 41
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