The AURORA mediator system employs a novel 2-tier, plug-and-play mediation model that is designed to facilitate access to a large number of heterogeneous data sources. This paper describes AURORA's mediation model and a suite of techniques used by a specific AURORA mediator, AURORA-RH. This suite includes a mediation methodology provided via an interactive mediator author's toolkit (MAT), a med...

In such an environment a query language will serve for more than "a souped-up version of X-Pointer". Our position focuses on the use of an XML query language as a view definition language that drives XML mediator systems. A mediator selects, restructures and merges information from multiple autonomous sources/sites. It exports an integrated XML view document. Possible applications of such media...

Decomposing a total causal effect into natural direct and indirect effects is central to revealing causal mechanisms. Conventional methods achieve the decomposition by specifying an outcome model as a linear function of the treatment, the mediator, and the observed covariates under identification assumptions including the assumption of no interaction between treatment and mediator. Recent stati...

Abstract The ultralight boson represents a promising dark matter candidate exhibiting unique wave-like behaviors. These properties could transfer to the mediator, such as kinetic mixing photon, which can be link between and Standard Model sectors, resulting in periodic oscillations of its mass. We propose method detect using mediators collider beam dump experiments, distinguishing it from conve...

during the last two decades, extensive researches have been done on body image in adolescents. several psychological factors can affect fear or satisfaction of body image. the present study aims to investigate the role of predicting self-esteem about fear of body image in adolescents emphasizing social anxiety as a mediator variable. the present study is cross-sectional and correlational. the s...

We consider a dynamic auction environment with a long-lived seller and short-lived buyers mediated by a third party. A mediator has incomplete information about traders’ values and selects an auction mechanism to maximize her expected revenue. We characterize mediator-optimal mechanisms and show that an optimal mechanism has a simple implementation as a Vickrey auction with a reserve price wher...

The emphasis on building co-operative/collaborative environments has brought out the issue of group interactions and conflicting situations,inevitable in group problem-solving. MArCo, our prototype, has an artificial conflict mediator that tries to provoke reflection and articulation on the solution process. In order to intervene more effectively, the mediator takes the group characteristics in...