13356041
Research on Distributed Data Mining Technology Based on Grid
Distributed data mining (DDM) techniques have become necessary for large and multi-scenario datasets requiring resources, which are heterogeneous and distributed. In this paper, we focused on distributed data mining based in grid. We have discussed and analyzed a new framework based on grid environments to execute new distributed data mining techniques on very large and distributed heterogeneous datasets. The architecture and motivation for the design have been presented. We pointed out that distributed data mining technology can offer a better solution since they are designed to work in a distributed environment by paying careful attention to the computing and communication resources.
13934101
E-learning and Its Information Technology
E-learning will be introduced as an integral part of an environment where teaching is transformed and where learning is an ongoing, creative process. In this paper, we discuss the e-learning and its technology. Our world is changing, and information and communication technology (ICT) is central to this change. Digital media has revolutionized the information society. These advances in ICT have dramatically changed the learning and teaching process, and have expanded new learning opportunities and access to educational resources beyond those traditionally available. ICT, when successfully integrated into teaching and learning, can ensure the meaningful interaction of learners with information.
16355724
The Bipartite Network Study of the Library Book Lending System
Through collecting the library lending information of the University of Shanghai for Science and Technology during one year, we build the database between the books and readers, and then construct a bipartite network to describe the relationships. We respectively establish the corresponding un-weighted and weighted bipartite network through the borrowing relationship and the reading days, thereout obtain the statistical properties via the theory and methods of complex network. We find all the properties follow exponential distribution and there is a positive correlation between the relevant properties in un-weighted and weighted networks. The un-weighted properties can describe the cooperation situation and configuration, but the properties with node weight may describe the competition results. Besides, we discuss the practical significance for the double relationship and the statistical properties. Further more, we propose a library personal recommendation system for developing the library humanity design resumptively.
5355145
Non-Repudiation and Fairness in Electronic Data Exchange
In this paper we discuss the two security issues: non-repudiation and fairness in association with e-commerce applications. In particular, these issues are addressed in the context of electronic data exchange, which is one of the most commonly seen e-commerce applications. In detail, this paper gives a survey of the approaches to non-repudiation and fair electronic data exchange protocols. We additionally discuss the current technologies that propose solutions to these issues, and the emerging standards in the area of business data formats and protocols for the exchange of such data. Finally, we discuss the architecture layer at which to implement the protocols for non-repudiation and fair data exchange.
14935404
Levels of Authentication Assurance: an Investigation
The ES-LoA project, funded by the UK Joint Information Systems Committee (JISC) under its e- Infrastructure Security Programme, investigates current and future needs among UK research and education community for a more fine-grained authorisation scheme that would allow service providers to take into account of the levels of confidence in identifying a remote entity requesting for service access. Such a fine-grained authorisation scheme is attractive to service providers offering resources with varying levels of sensitivity and/or wishing to tailor their security protections based upon risk levels. Service providers may wish to restrict access to more sensitive resources only to those who have gone through a more stringent authentication process, or given the same remote entity, require the use of a stronger authentication token should the access request come from a more risky environment. In this way, the quality of an authentication instance, expressed as an authentication Level of Assurance (LoA), becomes one of the parameters used in access control decision making. This paper investigates the current worldwide efforts in defining LoA and identifies gaps in existing definitions when they are applied to a federated environment.
2593409
Plugging a scalable authentication framework into Shibboleth
In a VO (virtual organization) environment where services are provided and shared by dissimilar organizations from different administrative domains and are protected with dissimilar security policies and measures, there is a need for a flexible authentication framework that supports the use of various authentication tokens. The authentication strengths derived from these tokens should be fed into an access control decision making process. This paper reports our ongoing efforts in designing and implementing such a framework to facilitate multi-level and multi-factor authentication and authentication strength linked fine-grained access control in Shibboleth. The proof-of-concept prototype using a Java smart card is reported.
39485215
Security issues in an EDI environment
EDI (Electronic Data Interchange) means electronic transmission, processing, and storage of commercial, business, or trade related documents. The paper surveys the security threats posed to an EDI system, and outlines the techniques and services used to counter these threats. Most importantly, the paper has gone into great depth to address an EDI specific security requirement-non repudiation of receipt. The current related work done to support this service is first discussed, and then a new and simple, but effective protocol to achieve non repudiation of receipt on a distributed and heterogeneous system platform is proposed.