3,803 research outputs found
Obvious: a meta-toolkit to encapsulate information visualization toolkits. One toolkit to bind them all
This article describes “Obvious”: a meta-toolkit that abstracts and encapsulates information visualization toolkits implemented in the Java language. It intends to unify their use and postpone the choice of which concrete toolkit(s) to use later-on in the development of visual analytics applications. We also report on the lessons we have learned when wrapping popular toolkits with Obvious, namely Prefuse, the InfoVis Toolkit, partly Improvise, JUNG and other data management libraries. We show several examples on the uses of Obvious, how the different toolkits can be combined, for instance sharing their data models. We also show how Weka and RapidMiner, two popular machine-learning toolkits, have been wrapped with Obvious and can be used directly with all the other wrapped toolkits. We expect Obvious to start a co-evolution process: Obvious is meant to evolve when more components of Information Visualization systems will become consensual. It is also designed to help information visualization systems adhere to the best practices to provide a higher level of interoperability and leverage the domain of visual analytics
Performance of Julia for High Energy Physics Analyses
We argue that the Julia programming language is a compelling alternative to
implementations in Python and C++ for common data analysis workflows in high
energy physics. We compare the speed of implementations of different workflows
in Julia with those in Python and C++. Our studies show that the Julia
implementations are competitive for tasks that are dominated by computational
load rather than data access. For work that is dominated by data access, we
demonstrate an application with concurrent file reading and parallel data
processing.Comment: 16 pages, 4 pages, 1 table, 3 code listing
Resource Oriented Architecture and REST
In light of the emerging discussion on Resource Oriented Architectures (ROA) and REST technology platform as solutions for Spatial Data distributed Infrastructures, the aim of this document is capture Resource Oriented Architectures principles and assess the feasibility as well as the advantages of using such approach compared with Service Oriented Architectures (SOA). Although most of the comments are domain independent we will use the INSPIRE (and the OGC services) infrastructure that is currently based on a SOA as domain for the comparative analysis.JRC.H.6-Spatial data infrastructure
- …