A. Conconi, T. Ganchev, O. Kocsis, G. Papadopoulos, F. Fernández-Aranda, S. Jiménez-Murcia
Serious games are computer games used as educational technology or as a vehicle for presenting or promoting a point of view. Serious games are intended to provide an engaging, self-reinforcing context in which to motivate and educate the players towards non-game events or processes, including business operations, training, marketing and advertisement. The potential of games for entertainment and learning has been demonstrated thoroughly from research and clearly in the market place. Unfortunately, the investments committed to entertainment dwarfs that which is committed for more serious purposes. Furthermore, game development has become more complex, expensive, and burdened with a long development cycle. In this paper we introduce PlayMancer, a work in progress that aims to overcome such barriers by augmenting existing 3D gaming engines with new possibilities and thusly creating a novel development framework. In section I of this paper we briefly survey the serious games market. In section II we introduce the PlayMancer project and its objectives, whereas in section III we present the platform architecture. Section VI describes an application scenario where a PlayMancer-based game is being used as additional therapeutic tool to treat chronic mental disorders, such as eating disorders and behavioral addiction.
{"title":"PlayMancer: A Serious Gaming 3D Environment","authors":"A. Conconi, T. Ganchev, O. Kocsis, G. Papadopoulos, F. Fernández-Aranda, S. Jiménez-Murcia","doi":"10.1109/AXMEDIS.2008.29","DOIUrl":"https://doi.org/10.1109/AXMEDIS.2008.29","url":null,"abstract":"Serious games are computer games used as educational technology or as a vehicle for presenting or promoting a point of view. Serious games are intended to provide an engaging, self-reinforcing context in which to motivate and educate the players towards non-game events or processes, including business operations, training, marketing and advertisement. The potential of games for entertainment and learning has been demonstrated thoroughly from research and clearly in the market place. Unfortunately, the investments committed to entertainment dwarfs that which is committed for more serious purposes. Furthermore, game development has become more complex, expensive, and burdened with a long development cycle. In this paper we introduce PlayMancer, a work in progress that aims to overcome such barriers by augmenting existing 3D gaming engines with new possibilities and thusly creating a novel development framework. In section I of this paper we briefly survey the serious games market. In section II we introduce the PlayMancer project and its objectives, whereas in section III we present the platform architecture. Section VI describes an application scenario where a PlayMancer-based game is being used as additional therapeutic tool to treat chronic mental disorders, such as eating disorders and behavioral addiction.","PeriodicalId":250298,"journal":{"name":"2008 International Conference on Automated Solutions for Cross Media Content and Multi-Channel Distribution","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127498048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
D. Parlanti, M. C. Pettenati, P. Bussotti, D. Giuli
When designing online social networks and collaborative environments, Internet architects need to analyze how relational structures generated by interacting actors are influenced by adopted system-level architectural components. Effective analysis of such socio-technical interrelations is best achieved through a modeling framework and proper simulation tools. We present a virtual organization reference model (VORM) supporting modeling and simulation of VO exchange dynamics. The VORM is based on three components: a descriptive framework easing social-exchanges formalization and description, a behavioral framework giving directions for behavioral modeling of social exchanges and an architectural framework focused on modeling of user-perceivable architectural components. A simulation for a VO engaged in knowledge exchanges has then been developed to exemplify the application of the VORM and to evaluate the impact of reputation, recommendation and identity management systems on the simulated social network.
{"title":"Evaluating the Impact of Architectural Models on Virtual Organizations Knowledge-Exchange Dynamics","authors":"D. Parlanti, M. C. Pettenati, P. Bussotti, D. Giuli","doi":"10.1109/AXMEDIS.2008.15","DOIUrl":"https://doi.org/10.1109/AXMEDIS.2008.15","url":null,"abstract":"When designing online social networks and collaborative environments, Internet architects need to analyze how relational structures generated by interacting actors are influenced by adopted system-level architectural components. Effective analysis of such socio-technical interrelations is best achieved through a modeling framework and proper simulation tools. We present a virtual organization reference model (VORM) supporting modeling and simulation of VO exchange dynamics. The VORM is based on three components: a descriptive framework easing social-exchanges formalization and description, a behavioral framework giving directions for behavioral modeling of social exchanges and an architectural framework focused on modeling of user-perceivable architectural components. A simulation for a VO engaged in knowledge exchanges has then been developed to exemplify the application of the VORM and to evaluate the impact of reputation, recommendation and identity management systems on the simulated social network.","PeriodicalId":250298,"journal":{"name":"2008 International Conference on Automated Solutions for Cross Media Content and Multi-Channel Distribution","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128568290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Most TV channels need to control its performance in live broadcasting. They need a way to help them make fast decisions and adjust their live programming in order to maintain high-level audience ratings. This article presents a real-time multi-channel monitoring web-based system. It integrates and synchronizes different technological environments from the data collection till the end-user software application. The solution enables delivering real time ratings synchronized with its corresponding channel image transmission.To support this idea, different internal systems were integrated and synchronized including: data collection, data processing, database feeds, video grabber and end-user authentication by the Customer Relationship Management (CRM). This unique solution is only possible due to the modularization of several systems and services as well their integration throughout a complex asynchronous process, which will be explained later.
{"title":"The Real Time Audience System, One Minute or Nothing","authors":"A. Crivellaro, M. Almeida","doi":"10.1109/AXMEDIS.2008.32","DOIUrl":"https://doi.org/10.1109/AXMEDIS.2008.32","url":null,"abstract":"Most TV channels need to control its performance in live broadcasting. They need a way to help them make fast decisions and adjust their live programming in order to maintain high-level audience ratings. This article presents a real-time multi-channel monitoring web-based system. It integrates and synchronizes different technological environments from the data collection till the end-user software application. The solution enables delivering real time ratings synchronized with its corresponding channel image transmission.To support this idea, different internal systems were integrated and synchronized including: data collection, data processing, database feeds, video grabber and end-user authentication by the Customer Relationship Management (CRM). This unique solution is only possible due to the modularization of several systems and services as well their integration throughout a complex asynchronous process, which will be explained later.","PeriodicalId":250298,"journal":{"name":"2008 International Conference on Automated Solutions for Cross Media Content and Multi-Channel Distribution","volume":"263 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134518229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Assuring acceptable delivery performance and resource availability is a very relevant issue in P2P networks. We see that replication strategies in P2P file sharing systems are mainly designed to assure high resource hit rate, rather than to improve average delivery throughput. In this paper we present a new replication strategy in an unstructured and decentralized P2P network that, as well as providing high average hit rate, significantly improves delivery performances in comparison to freenet-based and random replication strategies. Also, we show that the only average request rate is not a good metric to trigger replication processes. So we propose a new locality-aware replication and replacement strategy based on both topological properties and local user preferences. Simulation results show that the proposed strategy provides higher hit rate and average download speed in comparison to Freenet-based and other replication approaches.
{"title":"Adaptive Media Replication in Unstructured P2P File Sharing Systems Based on Geographical Properties and Query Distributions","authors":"S. Monni","doi":"10.1109/AXMEDIS.2008.36","DOIUrl":"https://doi.org/10.1109/AXMEDIS.2008.36","url":null,"abstract":"Assuring acceptable delivery performance and resource availability is a very relevant issue in P2P networks. We see that replication strategies in P2P file sharing systems are mainly designed to assure high resource hit rate, rather than to improve average delivery throughput. In this paper we present a new replication strategy in an unstructured and decentralized P2P network that, as well as providing high average hit rate, significantly improves delivery performances in comparison to freenet-based and random replication strategies. Also, we show that the only average request rate is not a good metric to trigger replication processes. So we propose a new locality-aware replication and replacement strategy based on both topological properties and local user preferences. Simulation results show that the proposed strategy provides higher hit rate and average download speed in comparison to Freenet-based and other replication approaches.","PeriodicalId":250298,"journal":{"name":"2008 International Conference on Automated Solutions for Cross Media Content and Multi-Channel Distribution","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134396052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this paper we try to deal one of the problems of the contemporary music analysis: the understanding of the hidden structures in the post-tonal music. For his characteristics we can compare it to a true complexity issue. This report is divided into three sections: firstly we will try to illustrate the theories that brought about the creation of ScoreSifter, a software tool for the analysis of post-tonal music. The second section proposes an example of analytical research, while the third section examines the technical and operative characteristics of the program.
{"title":"ScoreSifter: Software for Analysis of Post-Tonal Music, Using Domain-Based Segmentation","authors":"M. Gabrieli","doi":"10.1109/AXMEDIS.2008.49","DOIUrl":"https://doi.org/10.1109/AXMEDIS.2008.49","url":null,"abstract":"In this paper we try to deal one of the problems of the contemporary music analysis: the understanding of the hidden structures in the post-tonal music. For his characteristics we can compare it to a true complexity issue. This report is divided into three sections: firstly we will try to illustrate the theories that brought about the creation of ScoreSifter, a software tool for the analysis of post-tonal music. The second section proposes an example of analytical research, while the third section examines the technical and operative characteristics of the program.","PeriodicalId":250298,"journal":{"name":"2008 International Conference on Automated Solutions for Cross Media Content and Multi-Channel Distribution","volume":"231 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132681120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
P. Cremonesi, R. Turrin, Eugenio Lentini, Matteo Matteucci
Recommender systems use statistical and knowledge discovery techniques in order to recommend products to users and to mitigate the problem of information overload. The evaluation of the quality of recommender systems has become an important issue for choosing the best learning algorithms. In this paper we propose an evaluation methodology for collaborative filtering (CF) algorithms. This methodology carries out a clear, guided and repeatable evaluation of a CF algorithm. We apply the methodology on two datasets, with different characteristics, using two CF algorithms: singular value decomposition and naive bayesian networks.
{"title":"An Evaluation Methodology for Collaborative Recommender Systems","authors":"P. Cremonesi, R. Turrin, Eugenio Lentini, Matteo Matteucci","doi":"10.1109/AXMEDIS.2008.13","DOIUrl":"https://doi.org/10.1109/AXMEDIS.2008.13","url":null,"abstract":"Recommender systems use statistical and knowledge discovery techniques in order to recommend products to users and to mitigate the problem of information overload. The evaluation of the quality of recommender systems has become an important issue for choosing the best learning algorithms. In this paper we propose an evaluation methodology for collaborative filtering (CF) algorithms. This methodology carries out a clear, guided and repeatable evaluation of a CF algorithm. We apply the methodology on two datasets, with different characteristics, using two CF algorithms: singular value decomposition and naive bayesian networks.","PeriodicalId":250298,"journal":{"name":"2008 International Conference on Automated Solutions for Cross Media Content and Multi-Channel Distribution","volume":"132 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122623480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper presents a new type of context based on the authorisation of content adaptation in a generic multimedia scenario. After an overview of the state-of-the-art in the use and representation of context for multimedia content adaptation, we conclude that MPEG-21 Digital Item Adaptation is the most suited standardisation initiative in this area. We then present a flexible and interoperable way to express contextual information based on profiles and on MPEG-21 DIA Usage Environment Descriptors. Furthermore, we analyse the existing standardisation initiatives on Digital Rights Management and we identify the contextual information involved in a generic authorisation process, as well as the most complete standard to represent it. By integrating both areas of research (context-based adaptation and DRM) we obtain a new type of context for the adaptation authorisation based on standards and aligned with the other context profiles. In this way, the Adaptation Authorisation Profile guarantees flexibility and interoperability in a generic multimedia scenario.
{"title":"A Standard-Based Approach on the use of Contextual Information for the Adaptation Authorisation","authors":"A. Carreras, X. Maroñas, J. Delgado","doi":"10.1109/AXMEDIS.2008.34","DOIUrl":"https://doi.org/10.1109/AXMEDIS.2008.34","url":null,"abstract":"This paper presents a new type of context based on the authorisation of content adaptation in a generic multimedia scenario. After an overview of the state-of-the-art in the use and representation of context for multimedia content adaptation, we conclude that MPEG-21 Digital Item Adaptation is the most suited standardisation initiative in this area. We then present a flexible and interoperable way to express contextual information based on profiles and on MPEG-21 DIA Usage Environment Descriptors. Furthermore, we analyse the existing standardisation initiatives on Digital Rights Management and we identify the contextual information involved in a generic authorisation process, as well as the most complete standard to represent it. By integrating both areas of research (context-based adaptation and DRM) we obtain a new type of context for the adaptation authorisation based on standards and aligned with the other context profiles. In this way, the Adaptation Authorisation Profile guarantees flexibility and interoperability in a generic multimedia scenario.","PeriodicalId":250298,"journal":{"name":"2008 International Conference on Automated Solutions for Cross Media Content and Multi-Channel Distribution","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124744435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
F. Bellotti, S. Vrochidis, Ioannis Tsampoulatidis, Giancarlo Bo, Linda Napoletano
This paper proposes an open flexible learning oriented technological framework for interactive digital TV (iDTV). The framework is designed to satisfy the pedagogical requirements and deal with the iDTV capabilities and constraints. The framework includes two main products: the authoring tool, where the course is prepared and the course multimedia player, which is capable of presenting the course in an iDTV environment. The proposed approach has been validated in a simulation and real iDTV set-top box (STB) environment.
{"title":"A Learning Oriented Technological Framework for iDTV","authors":"F. Bellotti, S. Vrochidis, Ioannis Tsampoulatidis, Giancarlo Bo, Linda Napoletano","doi":"10.1109/AXMEDIS.2008.30","DOIUrl":"https://doi.org/10.1109/AXMEDIS.2008.30","url":null,"abstract":"This paper proposes an open flexible learning oriented technological framework for interactive digital TV (iDTV). The framework is designed to satisfy the pedagogical requirements and deal with the iDTV capabilities and constraints. The framework includes two main products: the authoring tool, where the course is prepared and the course multimedia player, which is capable of presenting the course in an iDTV environment. The proposed approach has been validated in a simulation and real iDTV set-top box (STB) environment.","PeriodicalId":250298,"journal":{"name":"2008 International Conference on Automated Solutions for Cross Media Content and Multi-Channel Distribution","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123431633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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