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Dr. Cristian Lai
Division of Information Society, Centro di Ricerca, Sviluppo e Studi Superiori in Sardegna, 09010 Pula CA, Italy

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0 Analytics
0 Artificial Intelligence
0 Information Retrieval
0 Semantic Web
0 intelligent transportation systems

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Review
Published: 14 February 2020 in Public Transport
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Fare evasion has become an important issue for public transport companies, especially for those that have adopted proof-of-payment ticketing systems. Recent years have seen strong growth in the publication of studies on fare evasion. This paper reviews 113 studies to identify the characteristics of the research on fare evasion. An overview and classification in five main areas, i.e., fare evader-oriented, criminological, economic, technological, and operational is provided. Next, the status quo of these studies is assessed to support possible unifying research development.

ACS Style

Benedetto Barabino; Cristian Lai; Alessandro Olivo. Fare evasion in public transport systems: a review of the literature. Public Transport 2020, 12, 27 -88.

AMA Style

Benedetto Barabino, Cristian Lai, Alessandro Olivo. Fare evasion in public transport systems: a review of the literature. Public Transport. 2020; 12 (1):27-88.

Chicago/Turabian Style

Benedetto Barabino; Cristian Lai; Alessandro Olivo. 2020. "Fare evasion in public transport systems: a review of the literature." Public Transport 12, no. 1: 27-88.

Conference paper
Published: 01 August 2019 in 2019 7th International Conference on Future Internet of Things and Cloud (FiCloud)
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In this paper, we will illustrate how microservice architectures can be adopted to build Internet of Things services for multimobility in a smart city. Traditional centralized architectures are built as monolithic solutions, which lack the flexibility required to deal with heterogeneous devices efficiently. Microservice architectures implement small features bounded within a running process; independent microservices can be deployed separately in a distributed system. We have proposed a draft of architecture for general-purpose Internet of Things applications. Thanks to the choice of the microservice paradigm, the architecture is capable of interfacing with a wide range of heterogeneous IoT devices while implementing scalability by design. On this basis, a web application has been developed bearing in mind a set of real case scenarios mobility services for citizens multimobility in a smart city.

ACS Style

Cristian Lai; Francesco Boi; Alberto Buschettu; Renato Caboni. IoT and Microservice Architecture for Multimobility in a Smart City. 2019 7th International Conference on Future Internet of Things and Cloud (FiCloud) 2019, 238 -242.

AMA Style

Cristian Lai, Francesco Boi, Alberto Buschettu, Renato Caboni. IoT and Microservice Architecture for Multimobility in a Smart City. 2019 7th International Conference on Future Internet of Things and Cloud (FiCloud). 2019; ():238-242.

Chicago/Turabian Style

Cristian Lai; Francesco Boi; Alberto Buschettu; Renato Caboni. 2019. "IoT and Microservice Architecture for Multimobility in a Smart City." 2019 7th International Conference on Future Internet of Things and Cloud (FiCloud) , no. : 238-242.

Conference paper
Published: 01 January 2019 in Proceedings of the 15th International Conference on Web Information Systems and Technologies
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ACS Style

Cristian Lai; Francesco Boi; Alberto Buschettu; Renato Caboni. SmartMobility, an Application for Multiple Integrated Transportation Services in a Smart City. Proceedings of the 15th International Conference on Web Information Systems and Technologies 2019, 58 -67.

AMA Style

Cristian Lai, Francesco Boi, Alberto Buschettu, Renato Caboni. SmartMobility, an Application for Multiple Integrated Transportation Services in a Smart City. Proceedings of the 15th International Conference on Web Information Systems and Technologies. 2019; ():58-67.

Chicago/Turabian Style

Cristian Lai; Francesco Boi; Alberto Buschettu; Renato Caboni. 2019. "SmartMobility, an Application for Multiple Integrated Transportation Services in a Smart City." Proceedings of the 15th International Conference on Web Information Systems and Technologies , no. : 58-67.

Conference paper
Published: 01 January 2019 in Proceedings of the 14th International Conference on Software Technologies
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ACS Style

Cristian Lai; Francesco Boi; Alberto Buschettu; Renato Caboni. A Microservice Architecture for Multimobility in a Smart City. Proceedings of the 14th International Conference on Software Technologies 2019, 1 .

AMA Style

Cristian Lai, Francesco Boi, Alberto Buschettu, Renato Caboni. A Microservice Architecture for Multimobility in a Smart City. Proceedings of the 14th International Conference on Software Technologies. 2019; ():1.

Chicago/Turabian Style

Cristian Lai; Francesco Boi; Alberto Buschettu; Renato Caboni. 2019. "A Microservice Architecture for Multimobility in a Smart City." Proceedings of the 14th International Conference on Software Technologies , no. : 1.

Book chapter
Published: 13 December 2018 in Assistive Technologies in Smart Cities
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In the past few years, the Smart City concept became one of the main driving forces for the transition towards sustainable economy and improved mobility. Tourism, as one of the fastest growing economies worldwide, is an integrated part of the Smart City paradigm. Taking into consideration recent studies performed by the United Nations, stating that almost one third of the population is directly affected by disability, the concept of Accessible Tourism needs also to be integrated in the future vision for tourism, especially in the context of Smart Cities, environments fully benefiting from the recent technological advances. Within the combined framework of Smart Cities and Accessible Tourism, the Internet-of-Things (IoT) concept is the key technological point for the development of smart urban environments. IoT and big data are both technology-driven developments, leading to scenarios such as the Smart Cities one that has the potential to make citizen live smarter, more sustainable and more accessible. This chapter analyses the key requirements for IoT applications in a Smart City context, the state-of-the-art for the use of IoT for Accessible Tourism applications and proposes an architecture together with its practical implementation, tailored for the use-case of accessible tourism for physically impaired persons.

ACS Style

Michele Nitti; Daniele Giusto; Simone Zanda; Massimo Di Francesco; Carlino Casari; Maria Laura Clemente; Cristian Lai; Carlo Milesi; Vlad Popescu. Using IoT for Accessible Tourism in Smart Cities. Assistive Technologies in Smart Cities 2018, 1 .

AMA Style

Michele Nitti, Daniele Giusto, Simone Zanda, Massimo Di Francesco, Carlino Casari, Maria Laura Clemente, Cristian Lai, Carlo Milesi, Vlad Popescu. Using IoT for Accessible Tourism in Smart Cities. Assistive Technologies in Smart Cities. 2018; ():1.

Chicago/Turabian Style

Michele Nitti; Daniele Giusto; Simone Zanda; Massimo Di Francesco; Carlino Casari; Maria Laura Clemente; Cristian Lai; Carlo Milesi; Vlad Popescu. 2018. "Using IoT for Accessible Tourism in Smart Cities." Assistive Technologies in Smart Cities , no. : 1.

Chapter
Published: 31 October 2017 in Econometrics for Financial Applications
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In high frequency transit services, bus regularity—i.e., the headway adherence between buses at bus stops—can be used as an indication of service quality, in terms of reliability, by both users and transit agencies. The Web architecture is the entry point of a Decision Support System (DSS), and contains an environment designed for experts in transport domain. The environment is composed of tools developed to automatically handle Automatic Vehicle Location (AVL) raw data for measuring the Level of Service (LoS) of bus regularity at each bus stop and time interval of a transit bus route. The results are represented within easy-to-read control dashboards consisting of tables, charts, and maps, able to perform fast AVL processing and easy accessibility in order to reduce the workload of transit operators. These outcomes show the importance of well-handled and presented AVL data, in order to use them more effectively, improving past analysis done by using, if any, manual methods.

ACS Style

Benedetto Barabino; Cristian Lai; Roberto Demontis; Sara Mozzoni; Carlino Casari; Antonio Pintus; Proto Tilocca. Web Architecture of a Web Portal for Reliability Diagnosis of Bus Regularity. Econometrics for Financial Applications 2017, 69 -88.

AMA Style

Benedetto Barabino, Cristian Lai, Roberto Demontis, Sara Mozzoni, Carlino Casari, Antonio Pintus, Proto Tilocca. Web Architecture of a Web Portal for Reliability Diagnosis of Bus Regularity. Econometrics for Financial Applications. 2017; ():69-88.

Chicago/Turabian Style

Benedetto Barabino; Cristian Lai; Roberto Demontis; Sara Mozzoni; Carlino Casari; Antonio Pintus; Proto Tilocca. 2017. "Web Architecture of a Web Portal for Reliability Diagnosis of Bus Regularity." Econometrics for Financial Applications , no. : 69-88.

Conference paper
Published: 05 July 2017 in Advances in Intelligent Systems and Computing
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In this paper we investigated new methods of effectively performing data modelling for making Internet of Things information accessible to humans and machines. In the current era of technology, we need efficient methods and solutions able to structure, annotate, share and make sense of the IoT data. We assumed that Things are basically active participants in information processes by exchanging data and information “sensed” about the environment. Semantics provide unambiguous machine-interpretable descriptions for data related to Things. In our methodology we proposed to encode sensor and observation data annotations through Semantic Web technologies and to embed them within devices. Moreover, we transformed such annotations to semantic descriptions, by using the cloud-based ThingSpeak middleware. The obtained descriptions are expected to compound a shared RDF Knowledge Base, useful to improve integration and communication processes between different networks.

ACS Style

Cristian Lai; Antonio Pintus; Alberto Serra. Using the Web of Data in Semantic Sensor Networks. Advances in Intelligent Systems and Computing 2017, 611, 106 -116.

AMA Style

Cristian Lai, Antonio Pintus, Alberto Serra. Using the Web of Data in Semantic Sensor Networks. Advances in Intelligent Systems and Computing. 2017; 611 ():106-116.

Chicago/Turabian Style

Cristian Lai; Antonio Pintus; Alberto Serra. 2017. "Using the Web of Data in Semantic Sensor Networks." Advances in Intelligent Systems and Computing 611, no. : 106-116.

Journal article
Published: 05 August 2016 in IEEE Transactions on Intelligent Transportation Systems
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This paper investigates time reliability at bus stops. Although it is typically evaluated from the transit provider's viewpoint, it must also account for passengers, as required in recent service-quality norms. Hence, data on both bus arrival (or departure) times and passenger arrivals must be collected and processed. Automated vehicle location (AVL) systems can collect bus data, but several challenges must be addressed to effectively use them. Passenger arrival data can be collected by surveys or direct observations and processed to derive patterns. This paper proposes two novel time reliability metrics: the percentage of passengers receiving regular service (PPR) and the percentage of passengers receiving punctual service (PPP) for regularity and punctuality evaluations, respectively. They are determined by a methodology that collects and handles AVL data, computes passenger patterns from passenger arrival data, and integrates AVL data and patterns. Experiments highlight the viability of the novel evaluation metrics using about three million of real-world AVL records. Their results are reported by straightforward Web tools. A comparison with traditional metrics shows that PPR and PPP provide a more careful evaluation by using the passenger as a normalization basis for their outcomes. In the new paradigm of demand-oriented services, the proposed metrics are crucial to quantify the ability of operators to serve passengers.

ACS Style

Benedetto Barabino; Cristian Lai; Carlino Casari; Roberto Demontis; Sara Mozzoni. Rethinking Transit Time Reliability by Integrating Automated Vehicle Location Data, Passenger Patterns, and Web Tools. IEEE Transactions on Intelligent Transportation Systems 2016, 18, 756 -766.

AMA Style

Benedetto Barabino, Cristian Lai, Carlino Casari, Roberto Demontis, Sara Mozzoni. Rethinking Transit Time Reliability by Integrating Automated Vehicle Location Data, Passenger Patterns, and Web Tools. IEEE Transactions on Intelligent Transportation Systems. 2016; 18 (4):756-766.

Chicago/Turabian Style

Benedetto Barabino; Cristian Lai; Carlino Casari; Roberto Demontis; Sara Mozzoni. 2016. "Rethinking Transit Time Reliability by Integrating Automated Vehicle Location Data, Passenger Patterns, and Web Tools." IEEE Transactions on Intelligent Transportation Systems 18, no. 4: 756-766.

Conference paper
Published: 25 May 2016 in Transactions on Petri Nets and Other Models of Concurrency XV
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This paper investigates how the Internet of Things (IoT) can take advantage of Semantic Technologies when combined with a prototyping middleware. Although Sensor Networks within the IoT offer enormous potential, the surprising variability in terms of communication and interoperability among Things is a challenging problem. This paper proposes to move from the classic meaning of Sensor Networks to the concept of Semantic Sensor Networks. The proposed methodology uses Semantic Web technologies, based on machine-interpretable representation formalisms, for combining Sensor Networks and the Paraimpu middleware. We propose to prototype and deploy a Semantic Sensor Network, focusing on the semantic aspects, with the tangible advantage to delegate to Paraimpu the low-level network operations. As a result we obtain a shared RDF Knowledge Base useful for improving integration and communication between different networks.

ACS Style

Cristian Lai; Antonio Pintus. Middleware Mediated Semantic Sensor Networks. Transactions on Petri Nets and Other Models of Concurrency XV 2016, 457 -464.

AMA Style

Cristian Lai, Antonio Pintus. Middleware Mediated Semantic Sensor Networks. Transactions on Petri Nets and Other Models of Concurrency XV. 2016; ():457-464.

Chicago/Turabian Style

Cristian Lai; Antonio Pintus. 2016. "Middleware Mediated Semantic Sensor Networks." Transactions on Petri Nets and Other Models of Concurrency XV , no. : 457-464.

Conference paper
Published: 01 May 2015 in 2015 IEEE 19th International Conference on Computer Supported Cooperative Work in Design (CSCWD)
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ANDASA is a web platform for the capitalization of knowledge and other “cultural” assets for the creative sector. It offers a common space in which the specificities of each partner, their research processes and artistic productions (that are the basis of the final productions) can emerge. ANDASA aims at developing an innovative approach able to outline the dynamics of culture and at generating new forms of knowledge and cultural production. The platform contains dynamic information on each partner. It is accessible to both network participants and to the general public and was built based on the needs and priorities expressed by the participants.

ACS Style

Cristian Lai; Carole Salis; Fabrizio Murgia; Franco Atzori; Marie Florence Helga Wilson; Lai Cristian. AND ASA, a web platform for enhancing networks of knowledge and innovation. 2015 IEEE 19th International Conference on Computer Supported Cooperative Work in Design (CSCWD) 2015, 36 -41.

AMA Style

Cristian Lai, Carole Salis, Fabrizio Murgia, Franco Atzori, Marie Florence Helga Wilson, Lai Cristian. AND ASA, a web platform for enhancing networks of knowledge and innovation. 2015 IEEE 19th International Conference on Computer Supported Cooperative Work in Design (CSCWD). 2015; ():36-41.

Chicago/Turabian Style

Cristian Lai; Carole Salis; Fabrizio Murgia; Franco Atzori; Marie Florence Helga Wilson; Lai Cristian. 2015. "AND ASA, a web platform for enhancing networks of knowledge and innovation." 2015 IEEE 19th International Conference on Computer Supported Cooperative Work in Design (CSCWD) , no. : 36-41.

Conference paper
Published: 01 October 2013 in 2013 Eighth International Conference on P2P, Parallel, Grid, Cloud and Internet Computing
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The Social Web supports the sharing of resources and the communication between members of communities. These have various cultural goals in specific domains and focus on the exchange of significant resources. Informal communication, but nevertheless considered useful, takes more and more importance due to the individual needs for sharing information. The easy access to social media services encourages people to produce such informal communication. In this paper we propose a way to manage in organizational memories, information produced on Twitter, mainly into tweets. The first part is the description of a system (an Organizational Memory) able to index tweets and related resources semantically. The second part is a scenario that shows the circulation of information between Twitter and such a system. The third part presents the definition of a semantic extension of tweet hash tags and a way to generate it.

ACS Style

Cristian Lai; Claude Moulin; Marie-Hélène Abel; Ching-Ming Lai. Management of Twitter Resources in a Semantic Organizational Memory. 2013 Eighth International Conference on P2P, Parallel, Grid, Cloud and Internet Computing 2013, 695 -700.

AMA Style

Cristian Lai, Claude Moulin, Marie-Hélène Abel, Ching-Ming Lai. Management of Twitter Resources in a Semantic Organizational Memory. 2013 Eighth International Conference on P2P, Parallel, Grid, Cloud and Internet Computing. 2013; ():695-700.

Chicago/Turabian Style

Cristian Lai; Claude Moulin; Marie-Hélène Abel; Ching-Ming Lai. 2013. "Management of Twitter Resources in a Semantic Organizational Memory." 2013 Eighth International Conference on P2P, Parallel, Grid, Cloud and Internet Computing , no. : 695-700.

Journal article
Published: 01 January 2013 in International Journal of Grid and Utility Computing
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ACS Style

Cristian Lai; C. Moulin. Semantic indexing modelling of resources within a distributed system. International Journal of Grid and Utility Computing 2013, 4, 21 .

AMA Style

Cristian Lai, C. Moulin. Semantic indexing modelling of resources within a distributed system. International Journal of Grid and Utility Computing. 2013; 4 (1):21.

Chicago/Turabian Style

Cristian Lai; C. Moulin. 2013. "Semantic indexing modelling of resources within a distributed system." International Journal of Grid and Utility Computing 4, no. 1: 21.

Book chapter
Published: 01 January 2011 in Artificial Intelligence: Foundations, Theory, and Algorithms
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In this chapter we illustrate our vision about the evolution of search engines, dealing with some emerging questions related to the social role of the user on the Web and to the actual approach to access the information. In this scenario, is ever more evident the need to redefine the information paradigm bringing the information to the user and not more the user to the information, with search engines able to provide results without direct questions from users, anticipating their needs. A Web in service of the user, automatically informed by the system with suggested resources related with his life style and his common behavior without the need to ask for them. This approach will be applied to a project named A Semantic Search Engine for a Business Network where the development of a business network creates a point of contact between the academic and the research world and the productive one by the introduction of Natural Language Processing, user profiling, automatic information classification according to users’ personal schemas, contributing in such a way to redefine the vision of information and delineating processes of Human-Machine Interaction.

ACS Style

Manuela Angioni; Emanuela De Vita; Cristian Lai; Ivan Marcialis; Gavino Paddeu; Franco G. Tuveri. Rethinking Search Engines in Social Network Vision. Artificial Intelligence: Foundations, Theory, and Algorithms 2011, 361, 1 -12.

AMA Style

Manuela Angioni, Emanuela De Vita, Cristian Lai, Ivan Marcialis, Gavino Paddeu, Franco G. Tuveri. Rethinking Search Engines in Social Network Vision. Artificial Intelligence: Foundations, Theory, and Algorithms. 2011; 361 ():1-12.

Chicago/Turabian Style

Manuela Angioni; Emanuela De Vita; Cristian Lai; Ivan Marcialis; Gavino Paddeu; Franco G. Tuveri. 2011. "Rethinking Search Engines in Social Network Vision." Artificial Intelligence: Foundations, Theory, and Algorithms 361, no. : 1-12.

Book chapter
Published: 01 January 2011 in Artificial Intelligence: Foundations, Theory, and Algorithms
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This chapter focuses on the semantic indexing of resources in a Peer to Peer network. Keys used for indexing and the corresponding urls of indexed resources are stored in a distributed hash table scattered on the single peers of a community. A key is a semantic description of resources and can be considered as a small knowledge base in that it refers to concepts and properties belonging to ontologies. In this kind of index a key used for resource retrieval must be identical to a key used for indexing the resource. Therefore, it is necessary to publish a resource with several keys allowing its further retrieval in different contexts. For that purpose, we have defined an expansion mechanism of the keys used for indexing.With different examples, we present the main cases of expansion that define the retrieval context of a resource.

ACS Style

Claude Moulin; Cristian Lai. Query Building in a Distributed Semantic Indexing System. Artificial Intelligence: Foundations, Theory, and Algorithms 2011, 109 -128.

AMA Style

Claude Moulin, Cristian Lai. Query Building in a Distributed Semantic Indexing System. Artificial Intelligence: Foundations, Theory, and Algorithms. 2011; ():109-128.

Chicago/Turabian Style

Claude Moulin; Cristian Lai. 2011. "Query Building in a Distributed Semantic Indexing System." Artificial Intelligence: Foundations, Theory, and Algorithms , no. : 109-128.

Conference paper
Published: 01 November 2010 in 2010 International Conference on Intelligent Networking and Collaborative Systems
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This paper is concerning issues regarding the semantic indexing of resources in a peer to peer network. An important requirement is a good quality of the discovery, i.e. the selection of results very related to a specific request. Keys used for indexing and the corresponding urls of indexed resources are stored in a distributed hash table scattered among the different peers of a community. A key is a semantic description of resources and refers to concepts and properties belonging to ontologies. We propose a system based on Indexing Patterns in order to generate keys. It is used to guide users for producing assertions about their resources. It induces a navigation inside ontologies presented in graphical user interfaces in a friendly and easy to use way. With different examples, we present the main cases of key generation that define the indexing context of a resource.

ACS Style

Claude Mouline; Cristian Lai. Indexing Patterns within a Distributed System. 2010 International Conference on Intelligent Networking and Collaborative Systems 2010, 206 -213.

AMA Style

Claude Mouline, Cristian Lai. Indexing Patterns within a Distributed System. 2010 International Conference on Intelligent Networking and Collaborative Systems. 2010; ():206-213.

Chicago/Turabian Style

Claude Mouline; Cristian Lai. 2010. "Indexing Patterns within a Distributed System." 2010 International Conference on Intelligent Networking and Collaborative Systems , no. : 206-213.

Journal article
Published: 01 June 2010 in International Journal of Software Engineering and Knowledge Engineering
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This paper discusses harmonization issues between the management of resources stored locally by users in personal repositories and the management of resources shared by a community which they belong to. The solution consists in maintaining the same kind of indexing. We discuss some requirements that the motivation implies and we present some choices that have been done for engineering the system that allows to manage different types of resources and that allows to describe them with ontological elements. This paper focuses on a knowledge-based representation of resources that supports the service that the community can bring to its members. We develop our approach of semantic indexing. Some constraints due to the nature of a distributed index are also presented. Peer to peer based communities rely on a decentralized system. The paper also presents the system engineering of a prototype that gives access to the resources. It explains how the architecture is structured and the role of its layers. The Web design of the front-end guarantees an anywhere and anytime access to the resources. The system supports an easy scalability thanks to its underlying architecture based on web services.

ACS Style

Claude Moulin; Cristian Lai. HARMONIZATION BETWEEN PERSONAL AND SHARED MEMORIES. International Journal of Software Engineering and Knowledge Engineering 2010, 20, 521 -531.

AMA Style

Claude Moulin, Cristian Lai. HARMONIZATION BETWEEN PERSONAL AND SHARED MEMORIES. International Journal of Software Engineering and Knowledge Engineering. 2010; 20 (4):521-531.

Chicago/Turabian Style

Claude Moulin; Cristian Lai. 2010. "HARMONIZATION BETWEEN PERSONAL AND SHARED MEMORIES." International Journal of Software Engineering and Knowledge Engineering 20, no. 4: 521-531.

Book chapter
Published: 01 January 2010 in Artificial Intelligence: Foundations, Theory, and Algorithms
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The social Web is characterized by the communication between loose community members and the sharing of resources that have to be managed by adapted indexing and querying systems. In this chapter we present a solution helping users that want to belong to some community to organize in a common way the resources retrieved from the community and their own resources. We only consider communities structured as a network of peers without any centralized support. The implemented system front-end is built as a web application similar to a traditional desktop operating system. It gives interfaces to several tools dealing with resources stored in the memory. A specific one, independent of any other applications is in charge of all the operations concerning the indexing, the publication of resources in the peer to peer network and the retrieving of resources in the local memory and from the network. Our solution is based on semantic indexing using concepts of domain ontologies automatically downloaded from the network. We show the way we have solved the main issues occurring in this research context.

ACS Style

Claude Moulin; Cristian Lai. Semantic Desktop: A Common Gate on Local and Distributed Indexed Resources. Artificial Intelligence: Foundations, Theory, and Algorithms 2010, 324, 61 -76.

AMA Style

Claude Moulin, Cristian Lai. Semantic Desktop: A Common Gate on Local and Distributed Indexed Resources. Artificial Intelligence: Foundations, Theory, and Algorithms. 2010; 324 ():61-76.

Chicago/Turabian Style

Claude Moulin; Cristian Lai. 2010. "Semantic Desktop: A Common Gate on Local and Distributed Indexed Resources." Artificial Intelligence: Foundations, Theory, and Algorithms 324, no. : 61-76.

Journal article
Published: 18 March 2009 in Earth Science Informatics
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GRIDA3 (Shared Resources Manager for Environmental Data Analysis and Applications) is a multidisciplinary project designed to deliver an integrated system to forge solutions to some environmental challenges such as the constant increase of polluted sites, the sustainability of natural resources usage and the forecast of extreme meteorological events. The GRIDA3 portal is mainly based on Web 2.0 technologies and EnginFrame framework. The portal, now at an advanced stage of development, provides end-users with intuitive Web-interfaces and tools that simplify job submission to the underneath computing resources. The framework manages the user authentication and authorization, then controls the action and job execution into the grid computing environment, collects the results and transforms them into an useful format on the client side. The GRIDA3 Portal framework will provide a problem-solving platform allowing, through appropriate access policies, the integration and the sharing of skills, resources and tools located at multiple sites across federated domains.

ACS Style

Fabrizio Murgia; Riccardo Biddau; Alessandro Concas; Roberto Demontis; Luca Fanfani; Zeno Heilmann; Cristian Lai; Giuditta Lecca; Eva Lorrai; Marino Marrocu; Vittorio Alessandro Marrone; Laura Muscas; Elisaveta Peneva; Andrea Piras; Massimo Pisu; Gabriella Pusceddu; Guido Satta; Daniela Theis; Andrea Vacca; Paolo Valera; Ana Melina Vallenilla Ferrara; Ernesto Bonomi. GRIDA3—a shared resources manager for environmental data analysis and applications. Earth Science Informatics 2009, 2, 5 -21.

AMA Style

Fabrizio Murgia, Riccardo Biddau, Alessandro Concas, Roberto Demontis, Luca Fanfani, Zeno Heilmann, Cristian Lai, Giuditta Lecca, Eva Lorrai, Marino Marrocu, Vittorio Alessandro Marrone, Laura Muscas, Elisaveta Peneva, Andrea Piras, Massimo Pisu, Gabriella Pusceddu, Guido Satta, Daniela Theis, Andrea Vacca, Paolo Valera, Ana Melina Vallenilla Ferrara, Ernesto Bonomi. GRIDA3—a shared resources manager for environmental data analysis and applications. Earth Science Informatics. 2009; 2 (1):5-21.

Chicago/Turabian Style

Fabrizio Murgia; Riccardo Biddau; Alessandro Concas; Roberto Demontis; Luca Fanfani; Zeno Heilmann; Cristian Lai; Giuditta Lecca; Eva Lorrai; Marino Marrocu; Vittorio Alessandro Marrone; Laura Muscas; Elisaveta Peneva; Andrea Piras; Massimo Pisu; Gabriella Pusceddu; Guido Satta; Daniela Theis; Andrea Vacca; Paolo Valera; Ana Melina Vallenilla Ferrara; Ernesto Bonomi. 2009. "GRIDA3—a shared resources manager for environmental data analysis and applications." Earth Science Informatics 2, no. 1: 5-21.

Journal article
Published: 18 February 2009 in Earth Science Informatics
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AQUAGRID is the subsurface hydrology computational service of the Sardinian GRIDA3 infrastructure, designed to deliver complex environmental applications via a user-friendly Web portal. The service aims to provide to water professionals integrated modeling tools to solve water resources management problems and aid decision making for contaminated soil and groundwater. In this paper, the AQUAGRID application concept and enabling technologies are illustrated. At the heart of the service are the computational models to simulate complex and large groundwater flow and contaminant transport problems and geochemical speciation. AQUAGRID is built on top of compute-Grid technologies by means of the EnginFrame Grid framework. Distributed data management is provided by the Storage Resource Broker data-Grid middleware. The resulting environment allows end-users to perform groundwater simulations and to visualize and interact with their results, using graphs, 3D images and annotated maps. The problem solving capability of the platform is demonstrated using the results of two case studies deployed.

ACS Style

G. Lecca; Cristian Lai; F. Murgia; R. Biddau; L. Fanfani; P. Maggi. AQUAGRID: an extensible platform for collaborative problem solving in groundwater protection. Earth Science Informatics 2009, 2, 83 -95.

AMA Style

G. Lecca, Cristian Lai, F. Murgia, R. Biddau, L. Fanfani, P. Maggi. AQUAGRID: an extensible platform for collaborative problem solving in groundwater protection. Earth Science Informatics. 2009; 2 (1):83-95.

Chicago/Turabian Style

G. Lecca; Cristian Lai; F. Murgia; R. Biddau; L. Fanfani; P. Maggi. 2009. "AQUAGRID: an extensible platform for collaborative problem solving in groundwater protection." Earth Science Informatics 2, no. 1: 83-95.

Conference paper
Published: 01 January 2009 in Proceedings of the International Conference on Knowledge Engineering and Ontology Development
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ACS Style

Claude Molin; Cristian Lai. ONTOLOGIES BASED APPROACH FOR SEMANTIC INDEXING IN DISTRIBUTED ENVIRONMENTS. Proceedings of the International Conference on Knowledge Engineering and Ontology Development 2009, 420 -423.

AMA Style

Claude Molin, Cristian Lai. ONTOLOGIES BASED APPROACH FOR SEMANTIC INDEXING IN DISTRIBUTED ENVIRONMENTS. Proceedings of the International Conference on Knowledge Engineering and Ontology Development. 2009; ():420-423.

Chicago/Turabian Style

Claude Molin; Cristian Lai. 2009. "ONTOLOGIES BASED APPROACH FOR SEMANTIC INDEXING IN DISTRIBUTED ENVIRONMENTS." Proceedings of the International Conference on Knowledge Engineering and Ontology Development , no. : 420-423.