Michele Angelaccio

• University of Pisa
• Professor (Associate) at University of Rome Tor Vergata

p>The increasing demand for slow tourism in rural regions is leading many organizations to reorganize events by planning new strategies able to predict the impact of incoming visitors and new stakeholders. Typical economic benefit-cost analysis often cannot be used in such contexts in which it is hard to predict socio-economic impacts that are the...

This paper examines the potential financial advantages and disadvantages of a project called Feudo Turistico, which proposes the establishment of a slow tourism destination between Rome and Fiuggi. The objective of the project is to reduce the concentration of tourist demand in the city centers of Rome and Fiuggi and instead distribute it across th...

The rapid change of technological and human-machine co-evolutionary processes due to smart working and smart industries, present several issues that are also influencing the world of e-learning systems. Nowadays is quite hard to distinguish between learning spaces/systems/organizations and working organizations especially when smart working and tel...

In order to improve the teaching method in courses for the safety at work, we need to review basic learning processes and to introduce a more active learning strategy. As a matter of fact, a practical way of learning is more efficient than a purely theoric method. This paper, after a brief analysis of the learning context, will introduce the active...

Volume 4, Issue 2, June 2017

Many recent trends in mobile web and context aware applications are leading to consider new applicative scenario including the so called smart services which are characterized by the use of autonomous devices connected to internet (sensors, beacons, etc.) and cooperating with user personal mobile devices (tablet, smartphone, etc.). In the case of u...

We focus on Web Design and programming learning techniques through the use of educational web app tailored to introduce learners in a co-working and project based style. To enhance the learning curve the class is organized as a web farm of an online shopping center in which student mimics a real marketplace playing with eduAPP designed for shops an...

The dramatic growth of the Web and the richness of dynamic user interfaces have forced to adopt model driven paradigm in web application design process. However the need to better synchronize with customers has lead to consider new web application development through the use of frameworks such as mobile first app development platforms in which the...

Many recent trends in mobile web and context aware applications are leading to consider new applicative scenario including the so called smart services which are characterized by the use of autonomous devices connected to internet (sensors, beacons, etc.) cooperating with user personal mobile devices (tablet, smartphone, etc.). In this work we desc...

We focus on Web Design and programming learning techniques through the use of educational web app tailored to introduce learners in a co-working and project based style. To enhance the learning curve the class is organized as a web farm of an online shopping center in which student mimics a real marketplace playing with eduAPP designed for shops an...

Alcune Aree interne dell'Appennino Centro-Meridionale, come ad esempio l'Alto Molise, da alcuni anni stanno subendo involuzioni socio economiche importanti e rilevanti agli occhi del visitatore occasionale o regolare, come il calo demografico e la riduzione di servizi scolastici e sociali. Tali trasformazioni sono dovute principalmente a fattori qu...

The Geo-Business Intelligence or Localization Intelligence is a collection of technologies that combines Geographic Information Systems (GIS) and Business Intelligence (BI). Thanks to the application of these technologies to the field of Cultural Heritage it is possible developing Smart Tourism applications to engage travelers with their social net...

Presents the front cover or splash screen of the proceedings record.

The Geo-Business Intelligence or Localization Intelligence is a collection of technologies that combines Geographic Information Systems (GIS) and Business Intelligence (BI) for evaluation of the results achieved, planning and decision-making. The merging of these two technologies, by connecting large amounts of data, provides a powerful visualizati...

Cultural Heritage Areas together Context-Aware Systems present a great opportunity where the Ambient Intelligence (AmI) paradigm can be successfully applied. This paper deals with the design of an AmI-based Information Systems, based on NFC (Near Field Communication) technology, developed to access Cultural Heritage Areas of particular interest, in...

The adoption of a P2P paradigm for implementing software applications based on service oriented architectures (SOA) is gaining momentum as a valid alternative to the classic client-server paradigm. In this context, service providers are strategically interested to describe and manage the quality of service (QoS) characteristics of offered services....

The COPECH workshop aims to bring together different research groups, both from academic communities and industry, which will provide a source for multidisciplinary research in the Preservation of Environment and Cultural Heritage sector. This paper, besides providing a presentation on the motivations of the workshop and the organization of its thi...

Technology enhanced learning tools are widely used to support learning process activities. The most diffuse technology in this sense is represented by e-learning web platforms that provide remote access to course documents and services. While e-learning should be considered a user-centric paradigm by following the development of each individual tas...

The availability of p2p distributed systems on wireless networks makes possible to explore new e-learning paradigms for adapting learning workflow to be more interactive. In this work we give a preliminary description of EduSHARE that is a p2p-based quiz management system running on wireless ad hoc network and supporting traditional learning workfl...

Starting from the hypothesis that P2P Data Sharing in a direct teaching scenario (e.g.: a classroom lesson) may lead to relevant benefits, this paper explores the features of EduSHARE a Collaborative Learning System useful for Enhanced Learning Process. The goal is to reach an improved interactivity between several actors playing in a common lesso...

The adoption of a P2P paradigm for implementing software applications based on service oriented architectures (SOA) is gaining momentum as a valid alternative to the classic client-server paradigm. In this context, service providers are strategically interested to describe and manage the quality of service (QoS) characteristics of offered services....

The COPECH workshop is at first edition and aims to bring together researchers who are currently developing new techniques, emerging communication platforms and collaborative paradigms or new features of a traditional one about Preservation of Environment and Cultural Heritage. This paper reports on the motivations and scope of the workshop. For th...

The permanent monitoring of structural behavior of monuments is a crucial target in the framework of cultural heritage preservation. The paper deals with the monitoring and static risk assessment using the technique of dynamic parameter measurement in a broad wireless sensors network (WSN) system. The historical buildings exposed to the traffic vib...

The monitoring of monuments structural behavior is a subject of crucial importance for cultural heritage preservation. Monitoring and vibration risk assessment in a broad WSN (Wireless Sensors Network) system allows to provide a robust infrastructure to support the data gathering and decision making before, during, and after a crisis event.

Adaptive WEB-GIS systems are emerging as a promising technology for managing highly dynamic situations such as in emergencies. Such situations require quick response and combination of static and dynamic data. Context information is crucial for understanding the possible roles within the rescue teams and the possibility for their collaboration. Eme...

In recent decades, the phenomenon of tourism has taken a major importance, both economic development. Indeed, for several years, it has noticed a gradual increase of services offered to tourists starting from the traditional tourist guides, to web portals devoted to this sector and community formed to share travel, photos, videos, etc.. What, howev...

The 17th edition of the WETICE conference has introduced a special showcase session devoted to promote fruitful discussions on the latest technology developments, directions, problems, and requirements related to projects running in the context of Collaborative Working Environments. This showcase session included both poster presentations and a rou...

The 17th edition of the WETICE conference has introduced a special showcase session devoted to promote fruitful discussions on the latest technology developments, directions, problems, and requirements related to projects running in the context of Collaborative Working Environments. This showcase session included both poster presentations and a rou...

This paper describes an ongoing project that exploits the capability of mobile sharing systems for ad-hoc wireless networks (MANET) operating in a post-emergency scenario. The aim is to support an existing adaptive process management in which users handle multimedia files (e.g. disaster photos) in a nomadic way by exploiting the capability offered...

Conference code: 77308, Export Date: 27 November 2013, Source: Scopus, Art. No.: 4806864, CODEN: PETEF, doi: 10.1109/WETICE.2008.4, Language of Original Document: English, Correspondence Address: Angelaccio, M.; University of Roma TorVergataItaly, Sponsors: West Virginia University; Concurrent Engineering Research Center, CERC; IEEE Computer Societ...

Collaborative working environments consist of a network of spatially dispersed actors (either humans or not) that play different roles and cooperate to achieve a common goal. Notwithstanding the ever increasing potential of innovative software and network technologies, collaborative working environments still require advanced solutions to effective...

This work suggests a search tool, MyWISH 3.0, as a solution for common web search results visualization limits. This tool unifies performance standards of a stable tool with the advanced visualization ability of a Java-based, highly configurable component. The data flow of these two modules ends up in an XML interface. Moreover, because of its accu...

The third International Workshop on Collaborative Peer-to-Peer Information Systems, COPS07 was held in Paris INT as part of WETICE-2007. It was the third meeting devoted to the study of the field of Cooperative Information Systems and P2P networks or Cooperative P2P-based Information Systems (COPS). This year has emerged that COPS idea is becoming...

Distributed applications are rapidly converging towards the adoption of a computing paradigm based on SOAs (service-oriented architectures), according to which an application results from the composition of a set of services in execution on networked server hosts. In this context, in order to provide SOA-based applications with high levels of QoS (...

AJAX is the latest technology emerged in web development, allowing rich asynchronous dynamic interfaces deployed within a normal web browser. Collaborative web services that aim managing more information throughput among partners, may encapsulate this technology through light Web Interface for sharing data according good service-level. In order to...

In this paper, we present a recently funded Euro-pean research project, namely WORKPAD, that aims at designing and developing an innovative software infrastructure (software, models, services, etc.) for supporting collaborative work of human operators in emergency/disaster scenarios. In such scenarios, different teams, belonging to different organi...

Distributed and collaborative applications are rapidly converging towards the adoption of a computing paradigm based on service-oriented architectures, according to which an application results from the composition of a set of services in execution on networked server hosts. In this context, a major challenge for collaborative businesses and applic...

The first International Workshop on Collaborative Peer-to-Peer Information Systems, COPS05 was held in Linköping University as part of WETICE-2005. It was the first meeting devoted to the study of the emerging field of Cooperative Information Systems and P2P networks or Cooperative P2Pbased Information Systems (COPS). P2P Systems are popular becaus...

Web search process can be time consuming and frustrating due to the enormous amount of information available on the Web. Recently, Web spiders with information extraction techniques that analyze retrieved documents have been proposed. This leads to an extended search process in which hypertext structure is enriched with semantic annotations. As con...

Internet searching is coping with CMS paradigm that is becoming the most popular approach for complex organization in putting their information on the Web. As consequence traditional web searching like site searching is often integrated with CMS searching services like searching on users, news or other CMS categories. This approach is different fro...

With the diffusion of wireless connections to Internet, the number of complex operations carried out from mobile users is increasing. To cope with bandwidth limitations and with disconnections, data caching is the most used technique. However for complex operation like dynamic searching a better solution is to take advantage of the multichannel pro...

A satellite communication system is an excellent candidate toprovide broadband integrated Internet services to globallyscattered users. The inter-operation between a satellite systemand the existing terrestrial Internet infrastructure introducesnew challenges at different layers. Automatic Repeat reQuest (ARQ)techniques have been introduced at radi...

Website maps are becoming one of the most important applications of graph drawing and information visualization techniques. However, the user has often struggled with web graphs returned from web search agents. To efficiently manage the visualization of these graphs it also occurs to take advantage from the flexibility of XML language. GraphXML for...

Local searching tools search Web pages that are on or close to a Web site in order to answer specific queries. A Web query taxonomy based on WebSQL can help to enhance local searching techniques

Website maps are becoming one of the most important applications of graph drawing and information visualization techniques. However, the user has often struggled with web graphs returned from web search agents. To efficiently manage the visualization of these graphs it also occurs to take advantage from the flexibility of XML language. GraphXML for...

World Wide Web visualisation systems are widely used for browsing or viewing search engine results. In the case of a local Web search tool, however, the browsing paradigm is combined with a searching paradigm, thus requiring dynamic visualisation methods. We describe an example of a visualisation system that is an extension of a common JavaScript s...

Big changes are taking place in the area of information supply and demand on Internet. The first big change, which took place quite a while ago, is related to the type of information is available and the amount that it is available in, the number of sources and the ease with which it can be obtained. What's more, information is playing an increasin...

Web visualization systems are widely used in browsing or viewing search engine results. In the case of web local search tool, however the browsing paradigm is combined with searching paradigm, thus requiring dynamic visualization methods. We describe an example of visualization system that is an extension of a common JavaScript used as a website ma...

The occurrence of faults in multicomputers with hundreds or thousands of nodes is a likely event that can be dealt with hardware or software fault-tolerant approaches. This paper presents a unifying model that describes software reconfiguration strategies for parallel applications with regular computational pattern. We show that most existing strat...

The performance of a data parallel program is critically dependent on the data decomposition that the programmer chooses at implementation time. This choice must take into account a combination of different factors such as the kind of the problem, the machine architecture and the data domain size. When these elements are known before execution, the...

The need of a friendly man-machine interaction is becoming crucial for a large variety of applications, in particular, those requiring frequent extraction of information from the database. Experience suggests that traditional query languages are not friendly enough for the casual user: she/he is requested to formulate queries in a textual language,...

The need of a friendly man-machine interaction is becoming crucial for a large variety of applications. In order to reach such a friendliness a new class of languages has been proposed (Visual Languages), based on the extensive use of graphical and iconic mechanisms. We are interested in a particular subclass of Visual Languages, called Visual Quer...

The single-program multiple-data (SPMD) paradigm is becoming the most diffuse way to program commercial multicomputers. In this paper we demonstrate that for a wide class of SPMD algorithms it is possible to achieve an efficient fault tolerance avoiding hardware redundancy. We propose a software approach that aims to reconfigure data, thus achievin...

On multicomputers the partial pivoting phase of the LU factorization has a peculiar load unbalancing due to the presence of idle processors in most matrix decompositions. Moreover, intrinsic synchronization barriers do not allow a complete masking of this overhead by means of pipelining techniques. We propose to reduce load unbalancing by ‘assignin...

This paper represents the first attempt towards a decomposition-independent implementation of parallel algorithms for matrix computations. Main framework is the Subcube Matrix Decomposition, given in this work, that allows to view in a unifying way the most diffuse matrix decompositions on multicomputers. Its decomposition-independent properties ex...

Two issues in linear algebra algorithms for multicomputers are addressed. First, how to unify parallel implementations of the same algorithm in a decomposition-independent way. Second, how to optimize naive parallel programs maintaining the decomposition independence. Several matrix decompositions are viewed as instances of a more general allocatio...

Le concept d'approximation a la limite, introduit initialement pour les fonctions recursives, a ete applique dans [AP90] et [APA91] dans le cadre de la theorie de la complexite pour definir des caracterisations significatives de classes de complexite. Cette etude permet de caracteriser PSPACE et d'autres classes de complexite de niveau superieur. D...

Presents the first parallel algorithms for solving row-continuous or generalized birth-death (GBD) Markov chains on distributed memory MIMD multiprocessors. These systems are characterized by very large transition probability matrices, decomposable in heterogeneous tridiagonal blocks. The parallelization of three aggregation/disaggregation iterativ...

A system to query databases using diagrams as a standard user interface is proposed. The system, called Query by Diagram* (QBD*), makes use of a conceptual data model, a query language on this model, and a graphical user interface. The conceptual model is the entity-relationship model. The query language, whose expressive power allows recursive que...

The need of a friendly man-machine interaction is becoming crucial for a large variety of applications, in particular, those requiring frequent extraction of information from the database. Experience suggests that traditional query languages are not friendly enough for the causal user: s/he is requested to formulate queries in a textural language,...

A system to query databases using diagrams as a standard user interface is proposed. The system, called Query by Diagram* (QBD*), makes use of a conceptual data model, a query language on this model, and a graphical user interface. The conceptual model is the entity-relationship model. The query language, whose expressive power allows recursive que...

The need of a friendly man-machine interaction is becoming crucial for a large variety of applications, in particular, those requiring frequent extraction of information from the database. Experience suggests that traditional query languages are not friendly enough for the casual user: she/he is requested to formulate queries in a textual language,...

The need of a friendly man-machine interaction is becoming crucial for a large variety of applications, in particular, those requiring frequent extraction of information from the database. Experience suggests that traditional query languages are not friendly enough for the casual user: she/he is requested to formulate queries in a textual language,...

In this paper, we present VSEARCH, a prototype of a web local searching tool which makes hyperlink structure and page rank visualisation. VSEARCH is designed to answer keyword based queries starting from an initial URL and with additional control parameters to prevent too much results being fetched. The prototype is available at http://websearch.in...

In this paper, we present a recently funded Euro- pean research project, namely WORKPAD, that aims at designing and developing an innovative software infrastructure (software, models, services, etc.) for supporting collaborative work of human operators in emergency/disaster scenarios. In such scenarios, different teams, belonging to different organ...

The need of a friendly man-machine interaction is becomingcrucial for a large variety of applications, in particular, thoserequiring frequent extraction of information from the database.Experience suggests that traditional query languages are notfriendly enough for the casual user: she/he is requested toformulate queries in a textual language, with...