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Shiwon Cho
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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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Shiwon Cho
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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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Shiwon Cho
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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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Shiwon Cho
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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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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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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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yhat blog - how to use scikit learn to classify images based on their content
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Installed as a layer above Hadoop, the open-source Pydoop package enables Python scripts to do big data work easily.
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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 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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Shiwon Cho
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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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The flow graph feature available in Intel® Threading Building Blocks (Intel® TBB) allows users to easily create both dependence graphs and reactive, messaging passing graphs that execute on top of Intel TBB tasks. Users programmatically create nodes and edges that express the computations performed by their application and the dependencies between these computations.
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Shiwon Cho
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Lately I’ve seen quite a few requests for advice from younger programmers, asking questions either directly to me or in public forums about a career decision...
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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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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 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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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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Shiwon Cho
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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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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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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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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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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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By Mike O’Brien, 10gen Software engineer and maintainer of Mongo-Hadoop With the release of MongoDB 2.4, it’s now pretty simple to take an existing application that already uses MongoDB and add new...
LivePerson Developers host Byron Ellis, Chief Data Scientist, LivePerson (@fdaapproved) In this meetup, Byron will demonstrate a realtime dashboard for strea...
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