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EEDSP
Digital Signal Processing, Data Analytics, Big Data, HPC, Deep Learning, GPGPU, Distributed and Parallel Computing
Curated by Shiwon Cho
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Principal Components Analysis Shiny App

Principal Components Analysis Shiny App | EEDSP | Scoop.it
I’ve recently started experimenting with making Shiny apps, and today I wanted to make a basic app for calculating and visualizing principal components analysis (PCA).
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What is “Practical Data Science with R”?

A bit about our upcoming book “Practical Data Science with R”. Nina and I share our current draft of the front matter from the book, which is a description which will help you decide if...
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Compiling R 3.0.1 with MKL support

Compiling R 3.0.1 with MKL support | EEDSP | Scoop.it
Before you begin, be aware that there is others excellent posts about the issue, as: 1. Compiling 64-bit R 2.10.1 with MKL in Linux 2. Speeding up R with Intel’s Math Kernel Library (MK...
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Basics of Haskell

My Haskell tutorial series keeps growing. I am publishing it through my School of Haskell account because it includes code that can be edited and run in place. There are many interactive exercises ...
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Resources for getting started with R

As learning a new language can be a really difficult and painful process, we thought that it would be a valuable idea to share useful links for R resources with you. If you can spare some time to read some of these links, we believe that this first briefing will enable you to come with a better background to our webinar.

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Dynamic Data Visualizations in the Browser Using Shiny

Dynamic Data Visualizations in the Browser Using Shiny | EEDSP | Scoop.it
After being busy the last two weeks teaching and attending academic conferences, I finally found some time to do what I love, program data visualizations using R.
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LLVM 3.3 is released! : Standard C++

Clang 3.3 includes full C++11 support, as well as a suite of run-time checkers to help find bugs in your programs.

For more information, check out the release notes for LLVM and for Clang

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New version of solaR

New version of solaR | EEDSP | Scoop.it
I have updated my package solaR. This package provides calculation methods of solar radiation and performance of photovoltaic systems from …Continuar leyendo »
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Pydoop: Writing Hadoop Programs in Python

Pydoop: Writing Hadoop Programs in Python | EEDSP | Scoop.it
Installed as a layer above Hadoop, the open-source Pydoop package enables Python scripts to do big data work easily.
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R package development

R package development | EEDSP | Scoop.it
Building R packages is not particular hard, but it can be a bit of a daunting endeavour at the beginning, particularly if you are more of a statistician than a computer scientist or programmer. Som...
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Apache CloudStack: Open Source Cloud Computing

Apache CloudStack: Open Source Cloud Computing | EEDSP | Scoop.it

Apache CloudStack is open source software designed to deploy and manage large networks of virtual machines, as a highly available, highly scalable Infrastructure as a Service (IaaS) cloud computing platform. CloudStack is used by a number of service providers to offer public cloud services, and by many companies to provide an on-premises (private) cloud offering, or as part of a hybrid cloud solution.

CloudStack is a turnkey solution that includes the entire "stack" of features most organizations want with an IaaS cloud: compute orchestration, Network-as-a-Service, user and account management, a full and open native API, resource accounting, and a first-class User Interface (UI).

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A Big Data introduction

Since R uses the computer RAM, it may handle only rather small sets of data. Nevertheless, there are some packages that allow to treat larger volumes and the best solution is to connect R with a Big Data environment.
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Parallel computation with helper threads in pqR

Parallel computation with helper threads in pqR | EEDSP | Scoop.it
One innovative feature of pqR (my new, faster, version of R), is that it can perform some numeric computations in “helper” threads, in parallel with other such numeric computations, and with interpretive operations performed in the “master” thread.
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The Future of JavaScript…Now!

The Future of JavaScript…Now! | EEDSP | Scoop.it

JavaScript has come a very long way in the past decade. What was previously known as a hobby language for throwing silly tricks like image rollovers and mouse cursor trails onto web pages has become the most widely used programming language on the most widely accessed platform: the Internet.

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Lexing and Parsing Continued - Perl.com

This article is the second part of a series which started with An Overview of Lexing and Parsing. That article aimed to discuss lexing and parsing in general terms, while trying to minimize the amount on how to actually use Marpa::R2 to do the work. In the end, however, it did have quite a few specifics. This article has yet more detail with regard to working with both a lexer and a parser.

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Evaluating Optimization Algorithms in MATLAB, Python, and R

Evaluating Optimization Algorithms in MATLAB, Python, and R | EEDSP | Scoop.it
As those of you who read my last post know, I’m at the NIMBioS-CAMBAM workshop on linking mathematical models to biological data here at UT Knoxville. Day 1 (today) was on parameter estimation and model identifiability.
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BCEA: An R package to perform Bayesian Cost-Effectiveness Analysis - Gianluca Baio

BCEA: An R package to perform Bayesian Cost-Effectiveness Analysis - Gianluca Baio | EEDSP | Scoop.it

BCEA is a R library specifically designed to post-process the result of a Bayesian health economic evaluation. Typically, this consists in the estimation of a set of relevant parameters that can be combined to produce an estimation of suitable measures of cost (c) and clinical benefits (e) associated with an intervention. Within the Bayesian framework, this amounts to estimating a posterior distribution for the pair (e,c).  

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Java Garbage Collection Distilled

Java Garbage Collection Distilled | EEDSP | Scoop.it
CMS, G1, Young Gen, New Gen, Old Gen, Eden, and the hundreds of JVM start-up flags... does this all baffle you when trying to tune the garbage collector to get the required throughput and latency from your Java application?
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Yahoo! Open Sources Storm on Hadoop

Apache Hadoop is de facto standard for Big Data storage and batch processing, while Tweeter Storm is quickly becoming a standard for large-scale event processing implementations. Unfortunately, up until recently, Storm and Hadoop required two physically different clusters for their implementation. Last week Yahoo! announced open sourcing Storm running on a Hadoop cluster.

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Top 100 R packages for 2013 (Jan-May)!

Top 100 R packages for 2013 (Jan-May)! | EEDSP | Scoop.it
What are the top 100 (most downloaded) R packages in 2013? Thanks to the recent release of RStudio of their “0-cloud” CRAN log files, we can now answer this question (at least for the months of Jan till May)!
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Tips for Writing Functional Programming Tutorials

Shiwon Cho's insight:

With the growing interest in a functional programming style, there are more tutorials and blog entries on the subject, and that's wonderful. For anyone so inclined to write their own, let me pass along a few quick tips.

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Acquiring Big Data Using Apache Flume

Acquiring Big Data Using Apache Flume | EEDSP | Scoop.it
Data analysis is only half the battle; getting the data into a Hadoop cluster is the first step in any Big Data deployment. Apache Flume uses an elegant design to make data loading easy and efficient.
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Quick and Simple D3 Network Graphs from R

Quick and Simple D3 Network Graphs from R | EEDSP | Scoop.it
Sometimes I just want to quickly make a simple D3 JavaScript directed network graph with data in R. Because D3 network graphs can be manipulated in the browser–i.e. nodes can be moved aroun...
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R and MongoDB

MongoDB is a document-based noSQL database. Different from the relational database storing data in tables with rigid schemas, MongoDB stores data in documents with dynamic schemas.
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