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Author (down) Cesta, Amedeo; Finzi, Alberto; Fratini, Simone; Orlandini, Andrea; Tronci, Enrico pdf  openurl
  Title Merging Planning, Scheduling & Verification – A Preliminary Analysis Type Conference Article
  Year 2008 Publication In Proc. of 10th ESA Workshop on Advanced Space Technologies for Robotics and Automation (ASTRA) Abbreviated Journal  
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  Notes Approved yes  
  Call Number Sapienza @ mari @ Astra08 Serial 24  
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Author (down) Cesta, Amedeo; Finzi, Alberto; Fratini, Simone; Orlandini, Andrea; Tronci, Enrico pdf  openurl
  Title Validation and Verification Issues in a Timeline-based Planning System Type Conference Article
  Year 2008 Publication In E-Proc. of ICAPS Workshop on Knowledge Engineering for Planning and Scheduling Abbreviated Journal  
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  Abstract One of the key points to take into account to foster effective introduction of AI planning and scheduling systems in real world is to develop end user trust in the related technologies. Automated planning and scheduling systems often brings solutions to the users which are neither “obviousÃ¢â‚¬Âť nor immediately acceptable for them. This is due to the ability of these tools to take into account quite an amount of temporal and causal constraints and to employ resolution processes often designed to optimize the solution with respect to non trivial evaluation functions. To increase technology trust, the study of tools for verifying and validating plans and schedules produced by AI systems might be instrumental. In general, validation and verification techniques represent a needed complementary technology in developing domain independent architectures for automated problem solving. This paper presents a preliminary report of the issues concerned with the use of two software tools for formal verification of finite state systems to the validation of the solutions produced by MrSPOCK, a recent effort for building a timeline based planning tool in an ESA project.  
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  Notes Approved yes  
  Call Number Sapienza @ mari @ Keps08 Serial 25  
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Author (down) Cesta, Amedeo; Finzi, Alberto; Fratini, Simone; Orlandini, Andrea; Tronci, Enrico pdf  doi
openurl 
  Title Validation and verification issues in a timeline-based planning system Type Journal Article
  Year 2010 Publication The Knowledge Engineering Review Abbreviated Journal  
  Volume 25 Issue 03 Pages 299-318  
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  Abstract One of the key points to take into account to foster effective introduction of AI planning and scheduling systems in real world is to develop end user trust in the related technologies. Automated planning and scheduling systems often brings solutions to the users which are neither “obviousÃ¢â‚¬Âť nor immediately acceptable for them. This is due to the ability of these tools to take into account quite an amount of temporal and causal constraints and to employ resolution processes often designed to optimize the solution with respect to non trivial evaluation functions. To increase technology trust, the study of tools for verifying and validating plans and schedules produced by AI systems might be instrumental. In general, validation and verification techniques represent a needed complementary technology in developing domain independent architectures for automated problem solving. This paper presents a preliminary report of the issues concerned with the use of two software tools for formal verification of finite state systems to the validation of the solutions produced by MrSPOCK, a recent effort for building a timeline based planning tool in an ESA project.  
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  Publisher Cambridge University Press Place of Publication Editor  
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  Notes Approved yes  
  Call Number Sapienza @ mari @ Cffot10 Serial 18  
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Author (down) Cesta, Amedeo; Finzi, Alberto; Fratini, Simone; Orlandini, Andrea; Tronci, Enrico pdf  doi
openurl 
  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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  Publisher Springer Place of Publication Editor Mertsching, Bärbel; Hund, M.; Aziz, M.Z.  
  Language Summary Language Original Title  
  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 (down) Cesta, Amedeo; Finzi, Alberto; Fratini, Simone; Orlandini, Andrea; Tronci, Enrico pdf  url
openurl 
  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  
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  Notes Approved yes  
  Call Number Sapienza @ mari @ Rcra09 Serial 22  
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Author (down) Cesta, Amedeo; Finzi, Alberto; Fratini, Simone; Orlandini, Andrea; Tronci, Enrico pdf  openurl
  Title Verifying Flexible Timeline-based Plans Type Conference Article
  Year 2009 Publication E-Proc. of ICAPS Workshop on Validation and Verification of Planning and Scheduling Systems Abbreviated Journal  
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  Abstract The synthesis of flexible temporal plans has demonstrated wide applications possibilities in heterogeneous domains. We are currently studying the connection between plan generation and execution from the particular perspective of verifying a flexible plan before actual execution. This paper explores how a model-checking verification tool, based on UPPAAL-TIGA, is suitable for verifying flexible temporal plans. We first describe the formal model, the formalism, and the verification method. Furthermore we discuss our own approach and some preliminary empirical results using a real-world case study.  
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  Notes Approved yes  
  Call Number Sapienza @ mari @ Vvps09 Serial 23  
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Author (down) Cecconi, Michele; Tronci, Enrico pdf  doi
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  Title Requirements Formalization and Validation for a Telecommunication Equipment Protection Switcher Type Conference Article
  Year 2000 Publication Hase Abbreviated Journal  
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  Publisher IEEE Computer Society Place of Publication Editor  
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  Series Volume Series Issue Edition  
  ISSN 0-7695-0927-4 ISBN Medium  
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  Notes Approved yes  
  Call Number Sapienza @ mari @ CeTro00 Serial 29  
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Author (down) Cavaliere, Federico; Mari, Federico; Melatti, Igor; Minei, Giovanni; Salvo, Ivano; Tronci, Enrico; Verzino, Giovanni; Yushtein, Yuri pdf  openurl
  Title Model Checking Satellite Operational Procedures Type Conference Article
  Year 2011 Publication DAta Systems In Aerospace (DASIA), Org. EuroSpace, Canadian Space Agency, CNES, ESA, EUMETSAT. San Anton, Malta, EuroSpace. Abbreviated Journal  
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  Abstract We present a model checking approach for the automatic verification of satellite operational procedures (OPs). Building a model for a complex system as a satellite is a hard task. We overcome this obstruction by using a suitable simulator (SIMSAT) for the satellite. Our approach aims at improving OP quality assurance by automatic exhaustive exploration of all possible simulation scenarios. Moreover, our solution decreases OP verification costs by using a model checker (CMurphi) to automatically drive the simulator. We model OPs as user-executed programs observing the simulator telemetries and sending telecommands to the simulator. In order to assess feasibility of our approach we present experimental results on a simple meaningful scenario. Our results show that we can save up to 90% of verification time.  
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  Notes Approved yes  
  Call Number Sapienza @ mari @ Dasia11 Serial 13  
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Author (down) Campagnano, Edoardo; Ciancamerla, Ester; Minichino, Michele; Tronci, Enrico pdf  doi
openurl 
  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  
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  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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  Publisher Springer Place of Publication Fredrikstad, Norway Editor Winther, R.; Gran, B. A.; Dahll, G.  
  Language Summary Language Original Title  
  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  
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  Notes Approved yes  
  Call Number Sapienza @ mari @ safecomp05 Serial 32  
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Author (down) Bucciarelli, Antonio; Salvo, Ivano pdf  doi
openurl 
  Title Totality, Definability and Boolean Circuits Type Journal Article
  Year 1998 Publication Abbreviated Journal  
  Volume 1443 Issue Pages 808-819  
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  Abstract In the type frame originating from the flat domain of boolean values, we single out elements which are hereditarily total. We show that these elements can be defined, up to total equivalence, by sequential programs. The elements of an equivalence class of the totality equivalence relation (totality class) can be seen as different algorithms for computing a given set-theoretic boolean function. We show that the bottom element of a totality class, which is sequential, corresponds to the most eager algorithm, and the top to the laziest one. Finally we suggest a link between size of totality classes and a well known measure of complexity of boolean functions, namely their sensitivity.  
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  Publisher Springer Place of Publication Editor  
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  Notes Approved yes  
  Call Number Sapienza @ mari @ bucciarelli-salvo:98 Serial 70  
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