Pub Date : 2012-06-18DOI: 10.1109/DEST.2012.6227954
S. Cimato, E. Damiani, G. Gianini
Assessing risk associated to structured financial products requires processing information about diverse risk factors. Some information comes from the different sources directly in aggregated form, so that it is not possible to estimate the correlation among different risk components. In this paper we argue that Secure Multiparty Computation could be used to merge the information from the different sources so as to compute more accurately the overall risk profile of securitized assets, thanks to the use of reliable information from the individual sources, but without disclosing the information from each source. Our simple model for securitization can solve in many cases information asymmetries between lenders and borrowers.
{"title":"Risk assessment of credit securities: The notion and the issues","authors":"S. Cimato, E. Damiani, G. Gianini","doi":"10.1109/DEST.2012.6227954","DOIUrl":"https://doi.org/10.1109/DEST.2012.6227954","url":null,"abstract":"Assessing risk associated to structured financial products requires processing information about diverse risk factors. Some information comes from the different sources directly in aggregated form, so that it is not possible to estimate the correlation among different risk components. In this paper we argue that Secure Multiparty Computation could be used to merge the information from the different sources so as to compute more accurately the overall risk profile of securitized assets, thanks to the use of reliable information from the individual sources, but without disclosing the information from each source. Our simple model for securitization can solve in many cases information asymmetries between lenders and borrowers.","PeriodicalId":320291,"journal":{"name":"2012 6th IEEE International Conference on Digital Ecosystems and Technologies (DEST)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125221510","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}
Pub Date : 2012-06-18DOI: 10.1109/DEST.2012.6227938
A. Sienou, A. Karduck
Developing countries regularly face disasters such as aridity, epidemic, deluge, and mass migration. Some of these countries developed national program for disaster prevention and response. However, observations show deployment and implementation lacks in many national programs. A study of the special case of Burkina Faso provided useful information to humanitarian logistics challenges that could be addressed with suitable digital ecosystems. This contribution is a position paper addressing this issue.
{"title":"Logistics challenges in developing countries: An analyis of Burkina Faso's national plan for disaster prevention and response","authors":"A. Sienou, A. Karduck","doi":"10.1109/DEST.2012.6227938","DOIUrl":"https://doi.org/10.1109/DEST.2012.6227938","url":null,"abstract":"Developing countries regularly face disasters such as aridity, epidemic, deluge, and mass migration. Some of these countries developed national program for disaster prevention and response. However, observations show deployment and implementation lacks in many national programs. A study of the special case of Burkina Faso provided useful information to humanitarian logistics challenges that could be addressed with suitable digital ecosystems. This contribution is a position paper addressing this issue.","PeriodicalId":320291,"journal":{"name":"2012 6th IEEE International Conference on Digital Ecosystems and Technologies (DEST)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127368633","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}
Pub Date : 2012-06-18DOI: 10.1109/DEST.2012.6227946
Yinbin Liu, Yixia Zhou, Geng Liu
Weibo (i.e. microblogs pronounced in Chinese) surging to be the mainstream on the Internet, promotes the governmental progress of social campaigns, emergencies and public affairs. Thousands of Weibo accounts are created by government agencies and officials, and considered as a new-found channel for information dissemination and citizen service. Chinese government's confidence in social media grows beyond everyone's expectation for benefiting from the adoption of Weibo where public opinions emerges in an endless succession. This paper presents and analyzes a case of Shanghai government Weibo account @Shanghaicity on its definition, content design, characteristics, operation system and challenges to draw a tentative conclusion of Weibo management. The result aims to set an example for Chinese government use of social media in the changeable future.
{"title":"Chinese government use of social media: A case of Shanghai Weibo @Shanghaicity","authors":"Yinbin Liu, Yixia Zhou, Geng Liu","doi":"10.1109/DEST.2012.6227946","DOIUrl":"https://doi.org/10.1109/DEST.2012.6227946","url":null,"abstract":"Weibo (i.e. microblogs pronounced in Chinese) surging to be the mainstream on the Internet, promotes the governmental progress of social campaigns, emergencies and public affairs. Thousands of Weibo accounts are created by government agencies and officials, and considered as a new-found channel for information dissemination and citizen service. Chinese government's confidence in social media grows beyond everyone's expectation for benefiting from the adoption of Weibo where public opinions emerges in an endless succession. This paper presents and analyzes a case of Shanghai government Weibo account @Shanghaicity on its definition, content design, characteristics, operation system and challenges to draw a tentative conclusion of Weibo management. The result aims to set an example for Chinese government use of social media in the changeable future.","PeriodicalId":320291,"journal":{"name":"2012 6th IEEE International Conference on Digital Ecosystems and Technologies (DEST)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131678567","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}
Pub Date : 2012-06-18DOI: 10.1109/DEST.2012.6227907
S. Moschoyiannis, P. Krause, Pavlos Georgiou
The concept of a digital ecosystem (DE) has been used to explore scenarios in which multiple online services and resources can be accessed by users without there being a single point of control. In previous work we have described how the so-called transaction languages can express concurrent and distributed interactions between online services in a transactional environment. In this paper we outline how transaction languages capture the history of a long-running transaction and highlight the benefits of our true-concurrent approach in the context of DEs. This includes support for the recovery of a long-running transaction whenever some failure is encountered. We introduce an animation tool that has been developed to explore the behaviours of long-running transactions within our modelling environment. Further, we discuss how this work supports the declarative approach to the development of open distributed applications.
{"title":"An animation tool for exploring transactions in a DE","authors":"S. Moschoyiannis, P. Krause, Pavlos Georgiou","doi":"10.1109/DEST.2012.6227907","DOIUrl":"https://doi.org/10.1109/DEST.2012.6227907","url":null,"abstract":"The concept of a digital ecosystem (DE) has been used to explore scenarios in which multiple online services and resources can be accessed by users without there being a single point of control. In previous work we have described how the so-called transaction languages can express concurrent and distributed interactions between online services in a transactional environment. In this paper we outline how transaction languages capture the history of a long-running transaction and highlight the benefits of our true-concurrent approach in the context of DEs. This includes support for the recovery of a long-running transaction whenever some failure is encountered. We introduce an animation tool that has been developed to explore the behaviours of long-running transactions within our modelling environment. Further, we discuss how this work supports the declarative approach to the development of open distributed applications.","PeriodicalId":320291,"journal":{"name":"2012 6th IEEE International Conference on Digital Ecosystems and Technologies (DEST)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132971471","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}
Pub Date : 2012-06-18DOI: 10.1109/DEST.2012.6227930
R. Grutz, Benjamin Löhnhardt, M. Brodhun, F. Dickmann
The biomedical community produces and uses a continuously growing amount of data while it lacks an inter-institutional research data management system. The LABIMI/F project founded by the German Research Foundation (DFG) implements an infrastructure to close this gap with an exemplary prototype for the use cases of medical image and genome research data. To determine suitable application(s) for this intention, several criteria for data management and data transfer, concerning their up-to-dateness, usability, metadata and payload management etc., are developed. These criteria are applied to three data management tools (DSpace, Fedora Commons and ISA-Tab tools), and four data transfer tools (PowerFolder, iRODS, CryptShare and Globus-Online), in an use-value analysis (UVA). The UVA reveals that no application meets all criteria; therefore other tools, e.g. eSciDoc, should be evaluated before making a final decision. Fedora Commons scores highly in the category metadata and payload management but has no sufficient user frontend. Therefore, further research is necessary in order to find an appropriate frontend for Fedora Commons. The data transfer tool with the highest total application score is PowerFolder, which provides easy synchronization of files and folders between the users and a central repository.
{"title":"Evaluation of data management and transfer tools for the biomedical community","authors":"R. Grutz, Benjamin Löhnhardt, M. Brodhun, F. Dickmann","doi":"10.1109/DEST.2012.6227930","DOIUrl":"https://doi.org/10.1109/DEST.2012.6227930","url":null,"abstract":"The biomedical community produces and uses a continuously growing amount of data while it lacks an inter-institutional research data management system. The LABIMI/F project founded by the German Research Foundation (DFG) implements an infrastructure to close this gap with an exemplary prototype for the use cases of medical image and genome research data. To determine suitable application(s) for this intention, several criteria for data management and data transfer, concerning their up-to-dateness, usability, metadata and payload management etc., are developed. These criteria are applied to three data management tools (DSpace, Fedora Commons and ISA-Tab tools), and four data transfer tools (PowerFolder, iRODS, CryptShare and Globus-Online), in an use-value analysis (UVA). The UVA reveals that no application meets all criteria; therefore other tools, e.g. eSciDoc, should be evaluated before making a final decision. Fedora Commons scores highly in the category metadata and payload management but has no sufficient user frontend. Therefore, further research is necessary in order to find an appropriate frontend for Fedora Commons. The data transfer tool with the highest total application score is PowerFolder, which provides easy synchronization of files and folders between the users and a central repository.","PeriodicalId":320291,"journal":{"name":"2012 6th IEEE International Conference on Digital Ecosystems and Technologies (DEST)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122496133","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}
Pub Date : 2012-06-18DOI: 10.1109/DEST.2012.6227943
Aaron D. Mason, Georgios Michalakidis, P. Krause
The ever-increasing availability of online data and the advances of today's Web have enabled large-scale experimentation on data crowdsourcing and the effect of the individual on information extraction and knowledge generation. Tiger Nation, a project to promote preservation of the last remaining wild tigers in the world, utilises advanced technologies to unobtrusively track tigers and raise awareness as a participatory sensing exemplar. Through a tiger stripe recognition algorithm and gamification elements that complement the identification process, we have achieved higher levels of accuracy compared to the conventional means, as well as high levels of engagement from the community of users.
{"title":"Tiger Nation: Empowering citizen scientists","authors":"Aaron D. Mason, Georgios Michalakidis, P. Krause","doi":"10.1109/DEST.2012.6227943","DOIUrl":"https://doi.org/10.1109/DEST.2012.6227943","url":null,"abstract":"The ever-increasing availability of online data and the advances of today's Web have enabled large-scale experimentation on data crowdsourcing and the effect of the individual on information extraction and knowledge generation. Tiger Nation, a project to promote preservation of the last remaining wild tigers in the world, utilises advanced technologies to unobtrusively track tigers and raise awareness as a participatory sensing exemplar. Through a tiger stripe recognition algorithm and gamification elements that complement the identification process, we have achieved higher levels of accuracy compared to the conventional means, as well as high levels of engagement from the community of users.","PeriodicalId":320291,"journal":{"name":"2012 6th IEEE International Conference on Digital Ecosystems and Technologies (DEST)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124175326","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}
Pub Date : 2012-06-18DOI: 10.1109/DEST.2012.6227944
Sabrina Bresciani, Andreas Schmeil
The disruptive potential of social media in generating participation and networking has been readily exploited by marketers and politicians. The power of these digital networks can be used by individuals and groups for good causes, to have a positive impact on the society at large. Social media platforms are starting to be used by citizens for promoting social causes, creating community engagement to answer societal needs. Yet, precisely because social media platforms have a viral effect, they pose completely new challenges: (1) emerging from a crowded environment, (2) monitoring/managing the truthfulness of information and (3) taking into account cultural differences and preferences. Two exemplary cases of social campaigns based on social media platforms are provided - Kony 2012 and Soita Mummolle - to illustrate typical challenges and potential solutions. Future research directions are proposed.
{"title":"Social media platforms for social good","authors":"Sabrina Bresciani, Andreas Schmeil","doi":"10.1109/DEST.2012.6227944","DOIUrl":"https://doi.org/10.1109/DEST.2012.6227944","url":null,"abstract":"The disruptive potential of social media in generating participation and networking has been readily exploited by marketers and politicians. The power of these digital networks can be used by individuals and groups for good causes, to have a positive impact on the society at large. Social media platforms are starting to be used by citizens for promoting social causes, creating community engagement to answer societal needs. Yet, precisely because social media platforms have a viral effect, they pose completely new challenges: (1) emerging from a crowded environment, (2) monitoring/managing the truthfulness of information and (3) taking into account cultural differences and preferences. Two exemplary cases of social campaigns based on social media platforms are provided - Kony 2012 and Soita Mummolle - to illustrate typical challenges and potential solutions. Future research directions are proposed.","PeriodicalId":320291,"journal":{"name":"2012 6th IEEE International Conference on Digital Ecosystems and Technologies (DEST)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127864779","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}
Pub Date : 2012-06-18DOI: 10.1109/DEST.2012.6227902
V. Bellandi, P. Ceravolo, Fulvio Frati, Jonatan Maggesi, Gabriela Waldhart, Isabella Seeber
In this paper we analyze the principal preconditions and limitations for designing a competence-based Recommender System. In detail this analysis is contextualized in the ARISTOTELE European project. In the second part of the paper an architectural view is proposed taking in consideration the objective to propose standard and non-standard suggestions. This solution will permit to insert serendipity approaches into classical solutions.
{"title":"Design principles for competence-based Recommender Systems","authors":"V. Bellandi, P. Ceravolo, Fulvio Frati, Jonatan Maggesi, Gabriela Waldhart, Isabella Seeber","doi":"10.1109/DEST.2012.6227902","DOIUrl":"https://doi.org/10.1109/DEST.2012.6227902","url":null,"abstract":"In this paper we analyze the principal preconditions and limitations for designing a competence-based Recommender System. In detail this analysis is contextualized in the ARISTOTELE European project. In the second part of the paper an architectural view is proposed taking in consideration the objective to propose standard and non-standard suggestions. This solution will permit to insert serendipity approaches into classical solutions.","PeriodicalId":320291,"journal":{"name":"2012 6th IEEE International Conference on Digital Ecosystems and Technologies (DEST)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129472546","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}
Pub Date : 2012-06-18DOI: 10.1109/DEST.2012.6269383
P. Andriani, P. Ferronato, G. Gianini
Track A addresses the foundations of Digital Ecosystems in the context of Complex Environments Engineering. A digital ecosystem is defined as an open, loosely coupled, demand-driven, domain clustered, agent-based self-organized environment where species/agents form short and long-term coalitions for specific purposes or goals, and everyone is proactive and responsive for its own benefit or profit. Interactions among peers in Digital Ecosystems may involve, besides unbridled competition, new modalities of pre-competitive and collaborative partnerships. Digital ecosystems are characterized by complexity ¿ demanding radically new solutions. This track focuses on the theoretical foundations, that can be drawn upon form various disciplines.
{"title":"TRACK A: FOUNDATIONS OF DIGITAL ECOSYSTEMS AND COMPLEX ENVIRONMENT ENGINEERING","authors":"P. Andriani, P. Ferronato, G. Gianini","doi":"10.1109/DEST.2012.6269383","DOIUrl":"https://doi.org/10.1109/DEST.2012.6269383","url":null,"abstract":"Track A addresses the foundations of Digital Ecosystems in the context of Complex Environments Engineering. A digital ecosystem is defined as an open, loosely coupled, demand-driven, domain clustered, agent-based self-organized environment where species/agents form short and long-term coalitions for specific purposes or goals, and everyone is proactive and responsive for its own benefit or profit. Interactions among peers in Digital Ecosystems may involve, besides unbridled competition, new modalities of pre-competitive and collaborative partnerships. Digital ecosystems are characterized by complexity ¿ demanding radically new solutions. This track focuses on the theoretical foundations, that can be drawn upon form various disciplines.","PeriodicalId":320291,"journal":{"name":"2012 6th IEEE International Conference on Digital Ecosystems and Technologies (DEST)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130665218","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}
Pub Date : 2012-06-18DOI: 10.1109/DEST.2012.6227914
R. Santos, C. Werner
Since systems and software development processes present challenges beyond the technical side, Software Ecosystems (SECOs) have emerged as an approach to improve Software Engineering (SE) mindset in industry, considering relations among companies and stakeholders. Developing a system has been changed to designing and maintaining a platform and its interface in order to support multiple products developed by a set of distributed and different third-part developers. This fact changes software industry because it requires linking an architectural, a business and a social-based environment in an integrated way and it focuses on software reuse processes. This concern motivated a proposal of a framework for SECOs management and engineering called ReuseECOS. The approach aims at outlining a set of steps that combines those three bases (or dimensions) of SECOs and joins different perspectives in SECOs research literature through a survey. In this paper, the focus is on the last dimension, that is, the social one. A preliminary analysis, done on a Software Reuse Lab's SECOs at COPPE/UFRJ, points out that concepts explored by researchers can be merged in a broader SE approach.
{"title":"Treating social dimension in software ecosystems through ReuseECOS approach","authors":"R. Santos, C. Werner","doi":"10.1109/DEST.2012.6227914","DOIUrl":"https://doi.org/10.1109/DEST.2012.6227914","url":null,"abstract":"Since systems and software development processes present challenges beyond the technical side, Software Ecosystems (SECOs) have emerged as an approach to improve Software Engineering (SE) mindset in industry, considering relations among companies and stakeholders. Developing a system has been changed to designing and maintaining a platform and its interface in order to support multiple products developed by a set of distributed and different third-part developers. This fact changes software industry because it requires linking an architectural, a business and a social-based environment in an integrated way and it focuses on software reuse processes. This concern motivated a proposal of a framework for SECOs management and engineering called ReuseECOS. The approach aims at outlining a set of steps that combines those three bases (or dimensions) of SECOs and joins different perspectives in SECOs research literature through a survey. In this paper, the focus is on the last dimension, that is, the social one. A preliminary analysis, done on a Software Reuse Lab's SECOs at COPPE/UFRJ, points out that concepts explored by researchers can be merged in a broader SE approach.","PeriodicalId":320291,"journal":{"name":"2012 6th IEEE International Conference on Digital Ecosystems and Technologies (DEST)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126404687","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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