This paper describes an approach to support non-visual exploration of graphically represented information. We used a hierarchical structure to organize the information encoded in a relational diagram and designed two alternative audio-only interfaces for presenting the hierarchy, each employing different levels of verbosity. We report on an experimental study that assessed the viability of our ...

In this work we use the GPU porting task for the operative Japanese weather prediction model “ASUCA” as an opportunity to examine productivity issues with OpenACC when applied to structured grid problems. We then propose “Hybrid Fortran”, an approach that combines the advantages of directive based methods (no rewrite of existing code necessary) with that of stencil DSLs (memory layout is abstra...

This paper presents a robust control design methodology for systems with probabilistic parametric uncertainty. Control design is carried out by solving a reliability-based multi-objective optimization problem where the probability of violating design requirements is minimized. Simultaneously, failure domains are optimally enlarged to enable global improvements in the closed-loop performance. To...

Automatic Chinese text summarization for dialogue style is a relatively new research area. In this paper, Latent Semantic Analysis (LSA) is first used to extract semantic knowledge from a given document, all question paragraphs are identified, an approach of automatic text segmentation analogous to TextTiling is exploited to improve the precision of correlating question paragraphs and answer pa...

This paper demonstrates a simple and pragmatic approach for the creation of smaller pools for evaluation of ad hoc retrieval systems. Instead of using an apriori-fixed depth, variable pool-depth based pooling is adopted. The pool for each topic is incrementally built and judged interactively. When no new relevant document is found for a reasonably long run of pool-depths, pooling can be stopped...

One approach to accelerating data acquisition in magnetic resonance imaging is acquisition of partial k-space data and recovery of missing data based on the sparsity of the image in the wavelet transform domain. We hypothesize that the application of stationary wavelet transform (SWT) thresholding as a sparsity-promoting operation results in improved artifact removal performance in comparison w...

This study examined conflict behaviors (self, other) among 127 Turkish college students. Differences in five conflict behaviors (forcing, avoiding, accommodating, compromising, and collaborating) were then explored in relation to popularity and unpopularity. Results indicated that the students engaged in more avoiding and compromising behaviors, while perceiving more forcing behavior in others....