In large IS development projects a huge number of natural language documents becomes available and needs to be analyzed and transformed into structured requirements. This elicitation process is known to be time-consuming and error-prone when performed manually by a requirements engineer. Thus, there is a clear demand for advanced support of the entire elicitation process. Our work focuses on pr...

This paper is geared to start a discussion about what data to preserve and analyze to facilitate collaborative production tasks. We do so by representing interrelationships among different project entities as networks and combining these networks using the concept of Meta Matrix – a methodology for combining individual networks to create derived networks to investigate. For illustration, we pre...

Task difficulty across different macro-genres continues to remain among less attended areas in second language development studies. This study examined the correlation between task difficulty across the descriptive, narrative, argumentative, and expository macro-genres. The three components of task difficulty (i.e., code complexity, cognitive complexity, and communicative stress) were also comp...

Facial landmark detection has long been impeded by the problems of occlusion and pose variation. Instead of treating the detection task as a single and independent problem, we investigate the possibility of improving detection robustness through multi-task learning. Specifically, we wish to optimize facial landmark detection together with heterogeneous but subtly correlated tasks, e.g.head pose...

It is shown that, for the spectral operators of scalar type, the well-known characterizations of the generation of C0and analytic semigroups of bounded linear operators can be reformulated exclusively in terms of the spectrum of such operators, the conditions on the resolvent of the generator being automatically met and the corresponding semigroup being that of the exponentials of the operator.

In a dynamic environment, even if an agent makes a plan to obtain a goal, the environment might change while the agent is executing the plan. In that case, the plan, which was initially valid when it was made, might later become invalid. Furthermore, in the process of replanning, it is necessary to take into account the side effects of actions already executed . To solve this problem, we have p...

We discuss the motivation for a novel style of tutorial dialogue system that emphasizes reflection in a design context. Our current research focuses on the hypothesis that this type of dialogue will lead to better learning than previous tutorial dialogue systems because (1) it motivates students to explain more in order to justify their thinking, and (2) it supports students’ meta-cognitive abi...

This paper describes a method to estimate the implementation cost of the hardware part in a mixed hardware/software system, as well as the related performance. These estimations try to avoid the use of many implementation details in order to keep the complexity order of the process under control. The concepts of hardware sharing and parallelism are exploited to make a picture of the whole hardw...

The study examined task interdependence as a structural factor, which influences the emergence of collective-efficacy versus self-efficacy as a team level construct. It tested for the differential effects of selfand collective-efficacy on team performance, and the effects of initial perceptions of selfand collective-efficacy and record of past performance on the development of their subsequent ...