Catálogo de publicaciones - libros

Experience shows that testing students’ understanding of new concepts immediately after they have been introduced considerably improves the learning process. In this work understanding of a concept is assumed to take place if a student can provide reasonably correct answers to questions requiring application this concept. A possible solution to the problem of how to determine whether students actually understand a concept is to give them tests. Such tests, being a part of an intelligent system, provide inconsistent information to intelligent agents, facilitating the tests evaluation process. This happens because the degree of a student’s understanding varies a lot depending on factors like time and the way questions are formulated. Since classical logic fails to draw conclusions in the presence of inconsistencies we propose application of paraconsistent logic.

Collaborative testing is an effective way of distributed interoperability in pursuit of automated testing. In this paper, a novel collaborative testing approach named Collaborative Automated Testing Framework (CATF) which meets the requirements of not only automated testing but also collaborative operation is proposed. Through the abstract analysis in terms of extended dynamic dataflow (DDF) model’s viewpoint incorporating with UML2.0 profile of MDA, we design the framework with an automated engine working as a Finite State Machine (FSM). Particularly, as a approach to collaborative testing at a system level, CATF is implemented with component modules based on J2EE and verified to be of efficiency.

In the Architecture Engineering and Construction sector (AEC) cooperation between actors is essential for project success. The configuration of actors’ organization takes different forms like the associated coordination mechanisms. Our approach consists in analyzing these coordination mechanisms through the identification of the “base practices” realized by the actors of a construction project to cooperate. We also try with practitioners to highlight the “best practices” of cooperation. Then we suggest here two prototypes of IT services aiming to demonstrate the value added of IT to support cooperation. These prototype tools allow us to sensitize the actors through terrain experiments and then to bring inch by inch the Luxembourgish AEC sector towards electronic cooperation.

A social network, in which nodes represent humans and weighted ties reflect relationships between them, can be formed in an automatic way based on the data about customers of a telecommunication company as well as their communication activities. The expansion of a telecommunication social network can be supported with one of three main approaches that have been considered in this paper: existing group conjunction, internal expansion of groups, and transfer of external relationships.

Cooperative learning is a social interaction that involving a community of learners and teachers, where members acquire and share experience or knowledge. Recently, researchers have initiated studies that explore which factors are relevant to learner satisfaction or education effectiveness in a cooperative learning environment. However, little research effort for developing a cooperative learning platform for information system training, such as three-dimensional CAD system training. Thus, our study aims to narrow these gaps. We present the cooperative learning platform for 3D CAD system. This approach can be helpful for better establishing cooperative learning for information system training. We introduce a case involving three-dimensional CAD training with the web-based cooperative learning platform in China. This research is specifically related the context of a state-of-the-art cooperative learning platform that is based on network technology for real-time interaction amongst users, instructor, and the cooperative learning system itself.

A collaborative development mechanism model of regional economic system in metropolitan region is presented in this paper. The factors of accomplishing collaboration balance and development in metropolitan regions economic system are discussed.

Linear feedback shift register(LFSR) sequencces can be used to shorten the representation of the elements of a finite field. We employ -stage LFSR sequence to construct an efficient blind signature scheme where main computation operations are performed in () and there do not need any exponentiation in its extension field ().

This research presents a relative entropy method for improving agent-based multi-attribute negotiation efficiency (REAMNE) of collaborative working in construction projects (CWCP). This method aggregates preference information of negotiators of CWCP in two steps. Firstly, compromise group preference order is ascertained by using preference information, which is newly provided by negotiators, and compromise preference information, which is formed in previously agent-based automatically negotiation process and calculated by using a compromise preference model. Secondly, group preferences are aggregated by using a relative entropy model, which is established based on entropy theory meanwhile considering the multiple attributes in negotiation of CWCP. The method of REAMNE has the merit of fulfilling the necessary requirement of group decision making (GDM), i.e. maximizing preference consistency of GDM and keeping minimum gap of negotiators’ utility and group preference.