This pilot study investigates an experimental methodology for gathering data to create correlations between experiential factors measured by a gameplay experience questionnaire and player quality measures, such as playing frequency, choice of game, and playing time. The characteristics of two distinct games were examined concerning the aspects of game experience, subjective game quality, and ga...

We present a honeypot technique based on an emulated environment of the Minos architecture [1] and describe our experiences and observations capturing and analyzing attacks. The main advantage of a Minos-enabled honeypot is that exploits based on corrupting control data can be stopped at the critical point where control flow is hijacked from the legitimate program, facilitating a detailed analy...

To asses wind potential in complex terrain three dimensional non-hydrostatic models become more and more popular. These models are capable of taking into account the flow pattern in complex terrain. Numerical flow models usually are quite complicated in the modelling itself and experiences on the impact of model parameters are limited. Especially the accuracy of predictions with these models fo...

This study is concerned with how the protagonists of case studies —carried out by researchers of business schools with commitment to the case method— experience the informing process occurring during case production and discussion. The focus is both on how protagonists personally experience this informing process as well as on how protagonists interpret its impact on their relation with the lar...

When a plane undergoes a deformation that can be represented by a planar linear vector eld, the projected vector eld on the image plane of an optical device is at most quadratic. This 2D motion eld has one singular point, with eigenvalues identical to those of the singular point describing the deformation. As a consequence, the nature of the singular point of the deformation is a projective inv...

In this paper, we propose a new failure-recovery model for workflow management systems (WfMSs). This model is supported with a new language, called the workflow failure-handling (WfFH) language, which allows the workflow designer to write programs so that s/he can use data-flow analysis technology to guide the failure recovery in workflow execution. With the WfFH language, the computation of th...

The optic flow patterns generated by virtual reality (VR) systems typically produce visually induced experiences of self-motion (vection). While this vection can enhance presence in VR, it is often accompanied by a variant of motion sickness called simulator sickness (SS). However, not all vection experiences are the same. In terms of perceived heading and/or speed, visually simulated self-moti...

Educational games have to be well designed to incorporate learner engagement, an integral component of educational effectiveness. One foundation of designing educational engagement is flow theory. This article presents a flow framework that describes the building blocks of flow experience that can be used to design appealing and effective educational games for formal and informal learning conte...

User interfaces to expert systems represent a bottleneck since consultation time is proportional to the amount of information the system asks the user to supply. An efficient, rather than exhaustive, strategy to direct user questioning will reduce consultation time and effort. An intelligent strategy to minimize questioning, the merit system, has been successfully implemented in Battle, an expe...

In this article, we discuss a flow–sensitive analysis of equality relationships for imperative programs. We describe its semantic domains, general purpose operations over abstract computational states (term evaluation and identification, semantic completion, widening operator, etc.) and semantic transformers corresponding to program constructs. We summarize our experiences from the last few yea...