Joins are arguably the most important relational operators. Poor implementations are tantamount to computing the Cartesian product of the input relations. In a temporal database, the problem is more acute for two reasons. First, conventional techniques are designed for the optimization of joins with equality predicates, rather than the inequality predicates prevalent in valid-time queries. Seco...

This contribution discusses the use of assisting agents in interactive configuration systems. With so-called brownies a new metaphor for assisting agents is explored which guides the functional design but avoids the presentation problem. The metaphor can be stretched to include socially interacting agents which can support large-scale configurations. Interactive configuration Configuration prob...

Introduction: Cognitive linguists believe that metaphor is a cognitive phenomenon, and that what appears in language is just the aspect of cognitive phenomenon Metaphor is one of the basic interdisciplinary concepts that has been paid more attention to its fundamental role in various aspects of psychology, medicine, including cancer in recent years. Methods:. From the point of view of cognitiv...

Objective: Social phobia is considered as one of the most common anxiety disorders. The researchers have been looking for the basic mechanism behind it, since determining these factors can be influential in prevention and treatment. In recent years, some of the most important personality and cognitive correlates of social phobia including neuroticism, fear of negative evaluation, anxiety sensit...

ness–concreteness algorithm. However, the evaluation was done on only five

Only a few attempts have so far been made at exploring the process of metaphor production, although a large number of studies have addressed metaphor comprehension. Therefore, in this paper, we address the problem of how people generate metaphors or identify an apt vehicle for a given topic of metaphors. Specifically, we examine how the process and product of metaphor production differ between ...