Security compliance has become an important topic for mediumand large-sized companies in the recent years. In order to fulfill all requirements legally imposed, high quality identity management – particularly with respect to correct and consistent access control – is essential. In this context, the concept of recertification has proven itself to maintain the quality and correctness of access ri...

Wireless Sensor networks are often deployed in open environment, thus the networks can be susceptible to their unexpected physical environment and attacks from some adversaries. In addition, sensor devices are limited in resources and vulnerable to node capture, so even a few malicious adversaries can easily compromise sensor devices and inject forged data into the networks to make the networks...

In this work we want to provide a tool for handling information coming from different information sources. In fact the real world we often have to deal with different sources asserting different things and, in order to decide, it is necessary to consider properly each of them trying to put this information together. According to us, a good way to do it is exploiting the concept of trust. In fac...

With the proliferation of fairly powerful mobile devices and ubiquitous wireless technology, traditional mobile ad hoc networks (MANETs) now migrate into a new era of service oriented MANETs wherein a mobile device can provide and receive service from other mobile devices it encounters and interacts with. We discuss our ongoing research efforts in trust management and trust-based algorithm desi...

Genetically modified (GM) technology in food production continued to generate controversies. Consumers were concerned with the GM foods about the healthy and environmental risks. While consumers’ acceptance was a critical factor affecting how widely this technology be used. According to the research review, consumers’ lack of information was one of the reasons to explain consumers’ low acceptan...

A mobile robot communicating its intentions using Spatial Augmented Reality (SAR) on the shared floor space makes humans feel safer and more comfortable around the robot. Our previous work [1] and several other works established this fact. We built upon that work by adding an adaptable information and control to the SAR module. An empirical study about how a mobile robot builds trust in humans ...

Lurking behavior is common in information-seeking oriented communities. Transferring users with lurking behavior to be contributors can assist virtual communities to obtain competitive advantages. Based on the ecological cognition framework, this study proposes a model to examine the antecedents of lurking behavior in information-seeking oriented virtual communities. This study argues desire fo...