In this project, we develop a parallel algorithm for supervised latent Dirichlet allocation (sLDA) Mcauliffe & Blei (2008) which maintains the speed advantage of communication free parallel computing in Neiswanger et al. (2013) while at the same time bypassing the problematic quasiergodicity in the local posteriors combination stage. Since the main objective of sLDA is prediction rather than me...

One of the most significant criticisms on traditional simulation modeling has been the lack of reusability. However, the cost of using simulation technology can be reduced through the extensive application of model reusability. In this paper, we address the question of reusability by showing how to create, in a generic way, models of complex communication network components from a library of ba...

The "Abstract Communication Model for Distributed Systems" outlines a general method for describing executable specifications for all message-based distributed communication systems. This model is based on the ASM (Abstract State Machine) paradigm. The model is highly non-deterministic and is intended to be so in order to preserve the generality of its applicability. The ACM effectively separat...

Despite predictions that emerging technologies will transform how research is conducted, disseminated, and rewarded, why do we see so little actual shift in how scholars in the most competitive and aspirant institutions actually disseminate their research? I describe research on faculty values and needs in scholarly communication that confirm a number of conservative tendencies in publishing. T...

Diffusion approximations for queues contain two conceptually different kinds of approximations, i.e., diffusion limits justified by heavy traffic limit theorems for unstable queues and diffusion models as continuous approximations for stable queues. The purpose of this paper is to provide i some basic concepts and issues in diffusion modeling, andiia bibliographical guide to diffusion models fo...

Information regarding the propagation media is typically gathered by conducting physical experiments, measuring and processing the corresponding data to obtain channel characteristics. When this propagation media is human body, for example in case of medical implants, then this approach might not be practical. In this paper, an immersive visualization environment is presented, which is used as ...

psychology is that, despite the overall impressive abilities of people to sense, remember, and reason about the world, our cognitive abilities are extremely limited in well-characterized ways. In particular, psychologists have found that people grapple with scarce attentional resources and limited working memory. Such limitations become salient when people are challenged with remembering more t...

The shared memory paradigm ooers a well known programming model for parallel systems. But it lacks from its bad performance in conventional implementations if it is used in large grain or page based systems. The main problems are (1) the transparent view on the system level, (2) the false sharing caused by locating several consistency units into the same transportation unit, and that (3) high l...