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Author (up) 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 (up) 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 (up) 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 (up) Cesta, Amedeo; Fratini, Simone; Orlandini, Andrea; Finzi, Alberto; Tronci, Enrico pdf  doi
openurl 
  Title Flexible Plan Verification: Feasibility Results Type Journal Article
  Year 2011 Publication Fundamenta Informaticae Abbreviated Journal  
  Volume 107 Issue 2 Pages 111-137  
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  Notes Approved yes  
  Call Number Sapienza @ mari @ fi11 Serial 15  
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Author (up) Chen, Q.M.; Finzi, A.; Mancini, T.; Melatti, I.; Tronci, E. pdf  doi
openurl 
  Title MILP, Pseudo-Boolean, and OMT Solvers for Optimal Fault-Tolerant Placements of Relay Nodes in Mission Critical Wireless Networks Type Journal Article
  Year 2020 Publication Abbreviated Journal Fundamenta Informaticae  
  Volume 174 Issue Pages 229-258  
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  Abstract In critical infrastructures like airports, much care has to be devoted in protecting radio communication networks from external electromagnetic interference. Protection of such mission-critical radio communication networks is usually tackled by exploiting radiogoniometers: at least three suitably deployed radiogoniometers, and a gateway gathering information from them, permit to monitor and localise sources of electromagnetic emissions that are not supposed to be present in the monitored area. Typically, radiogoniometers are connected to the gateway through relay nodes . As a result, some degree of fault-tolerance for the network of relay nodes is essential in order to offer a reliable monitoring. On the other hand, deployment of relay nodes is typically quite expensive. As a result, we have two conflicting requirements: minimise costs while guaranteeing a given fault-tolerance. In this paper, we address the problem of computing a deployment for relay nodes that minimises the overall cost while at the same time guaranteeing proper working of the network even when some of the relay nodes (up to a given maximum number) become faulty (fault-tolerance ). We show that, by means of a computation-intensive pre-processing on a HPC infrastructure, the above optimisation problem can be encoded as a 0/1 Linear Program, becoming suitable to be approached with standard Artificial Intelligence reasoners like MILP, PB-SAT, and SMT/OMT solvers. Our problem formulation enables us to present experimental results comparing the performance of these three solving technologies on a real case study of a relay node network deployment in areas of the Leonardo da Vinci Airport in Rome, Italy.  
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  Publisher IOS Press Place of Publication Editor  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1875-8681 ISBN Medium  
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  Notes Approved no  
  Call Number MCLab @ davi @ Serial 188  
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Author (up) Chierichetti, Flavio; Lattanzi, Silvio; Mari, Federico; Panconesi, Alessandro pdf  doi
openurl 
  Title On Placing Skips Optimally in Expectation Type Conference Article
  Year 2008 Publication Web Search and Web Data Mining (WSDM 2008) Abbreviated Journal  
  Volume Issue Pages 15-24  
  Keywords Information Retrieval  
  Abstract We study the problem of optimal skip placement in an inverted list. Assuming the query distribution to be known in advance, we formally prove that an optimal skip placement can be computed quite efficiently. Our best algorithm runs in time O(n log n), n being the length of the list. The placement is optimal in the sense that it minimizes the expected time to process a query. Our theoretical results are matched by experiments with a real corpus, showing that substantial savings can be obtained with respect to the tra- ditional skip placement strategy, that of placing consecutive skips, each spanning sqrt(n) many locations.  
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  Publisher Acm Place of Publication Editor Najork, M.; Broder, A.Z.; Chakrabarti, S.  
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  Notes Approved yes  
  Call Number Sapienza @ mari @ ChiLatMar08 Serial 94  
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Author (up) Ciancamerla, Ester; Minichino, Michele; Serro, Stefano; Tronci, Enrico pdf  doi
openurl 
  Title Automatic Timeliness Verification of a Public Mobile Network Type Conference Article
  Year 2003 Publication 22nd International Conference on Computer Safety, Reliability, and Security (SAFECOMP) Abbreviated Journal  
  Volume Issue Pages 35-48  
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  Abstract This paper deals with the automatic verification of the timeliness of Public Mobile Network (PMN), consisting of Mobile Nodes (MNs) and Base Stations (BSs). We use the Mur$\varphi$ Model Checker to verify that the waiting access time of each MN, under different PMN configurations and loads, and different inter arrival times of MNs in a BS cell, is always below a preassigned threshold. Our experimental results show that Model Checking can be successfully used to generate worst case scenarios and nicely complements probabilistic methods and simulation which are typically used for performance evaluation.  
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  Publisher Springer Place of Publication Edinburgh, UK Editor Anderson, S.; Felici, M.; Littlewood, B.  
  Language Summary Language Original Title  
  Series Editor Series Title Lecture Notes in Computer Science Abbreviated Series Title  
  Series Volume 2788 Series Issue Edition  
  ISSN 978-3-540-20126-7 ISBN Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Sapienza @ mari @ safecomp03 Serial 38  
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Author (up) Coppo, Mario; Dezani-Ciancaglini, Mariangiola; Giovannetti, Elio; Salvo, Ivano pdf  doi
openurl 
  Title Mobility Types for Mobile Processes in Mobile Ambients Type Journal Article
  Year 2003 Publication Electr. Notes Theor. Comput. Sci. Abbreviated Journal  
  Volume 78 Issue Pages  
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  Abstract We present an ambient-like calculus in which the open capability is dropped, and a new form of “lightweight  process mobility is introduced. The calculus comes equipped with a type system that allows the kind of values exchanged in communications and the access and mobility properties of processes to be controlled. A type inference procedure determines the “minimal  requirements to accept a system or a component as well typed. This gives a kind of principal typing. As an expressiveness test, we show that some well known calculi of concurrency and mobility can be encoded in our calculus in a natural way.  
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  Notes Approved yes  
  Call Number Sapienza @ mari @ Coppo-Dezani-Giovannetti-Salvo:03 Serial 74  
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Author (up) Della Penna, Giuseppe; Di Marco, Antinisca; Intrigila, Benedetto; Melatti, Igor; Pierantonio, Alfonso pdf  doi
openurl 
  Title Interoperability mapping from XML schemas to ER diagrams Type Journal Article
  Year 2006 Publication Data Knowl. Eng. Abbreviated Journal  
  Volume 59 Issue 1 Pages 166-188  
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  Abstract The eXtensible Markup Language (XML) is a de facto standard on the Internet and is now being used to exchange a variety of data structures. This leads to the problem of efficiently storing, querying and retrieving a great amount of data contained in XML documents. Unfortunately, XML data often need to coexist with historical data. At present, the best solution for storing XML into pre-existing data structures is to extract the information from the XML documents and adapt it to the data structures’ logical model (e.g., the relational model of a DBMS). In this paper, we introduce a technique called Xere (XML entity–relationship exchange) to assist the integration of XML data with other data sources. To this aim, we present an algorithm that maps XML schemas into entity–relationship diagrams, discuss its soundness and completeness and show its implementation in XSLT.  
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  Publisher Elsevier Science Publishers B. V. Place of Publication Amsterdam, The Netherlands, The Netherlands Editor  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0169-023x ISBN Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Sapienza @ mari @ Ddimp06 Serial 77  
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Author (up) Della Penna, Giuseppe; Di Marco, Antinisca; Intrigila, Benedetto; Melatti, Igor; Pierantonio, Alfonso pdf  doi
openurl 
  Title Xere: Towards a Natural Interoperability between XML and ER Diagrams Type Conference Article
  Year 2003 Publication Fundamental Approaches to Software Engineering, 6th International Conference, FASE 2003, Held as Part of the Joint European Conferences on Theory and Practice of Software, ETAPS 2003, Warsaw, Poland, April 7-11, 2003, Proceedings Abbreviated Journal  
  Volume Issue Pages 356-371  
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  Abstract XML (eXtensible Markup Language) is becoming the standard format for documents on Internet and is widely used to exchange data. Often, the relevant information contained in XML documents needs to be also stored in legacy databases (DB) in order to integrate the new data with the pre-existing ones. In this paper, we introduce a technique for the automatic XML-DB integration, which we call Xere. In particular we present, as the first step of Xere, the mapping algorithm which allows the translation of XML Schemas into Entity-Relationship diagrams.  
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  Corporate Author Thesis  
  Publisher Springer Place of Publication Editor Pezzè, M.  
  Language Summary Language Original Title  
  Series Editor Series Title Lecture Notes in Computer Science Abbreviated Series Title  
  Series Volume 2621 Series Issue Edition  
  ISSN 3-540-00899-3 ISBN Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Sapienza @ mari @ Ddimp03 Serial 86  
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