Why?

August 17, 2011

Kaleidoscope IIb (useR! 2011)

Filed under: Conferences, R, useR! 2011 — Tags: , , — csgillespie @ 9:35 am

L Collingwood – RTextTools

RTextTools. A machine learning library for automated text classification. This package builds on previous packages such as tm and random forests. Use case: undergrad labels congressional bills but then quits. Using the previously labelled data, automatically classify the remaining documents. The speaker gave a nice overview of machine learning techniques, but I was familiar with them so didn’t bother making notes.

Workflow:

  1. Read data;
  2. Missed opps;
  3. Create Corpus;
  4. Train Models – SVM, SLDA, TREE, etc;
  5. Classify models;
  6. Analyze data.

Jason Waddel – The Role of R in Lab Automation

License: free as in free beer and speech!

Summary: a scientist repeats the same experiment multiple times. How can we automate analysis.

R service bus allows a scientist to email/upload data and the results are automatically generated.

High level view

Various inputs such as pop, xml, REST WS. Each input is added to the queue. A pool of R servers handles the job. A simple configuration file handles the set-up.

 

Please note that the notes/talks section of this post is merely my notes on the presentation. I may have made mistakes: these notes are not guaranteed to be correct. Unless explicitly stated, they represent neither my opinions nor the opinions of my employers. Any errors you can assume to be mine and not the speaker’s. I’m happy to correct any errors you may spot – just let me know!

About these ads

2 Comments »

  1. Thanks for the shout-out to RTextTools on your blog! Just a heads up, the URL in your blog post points to “rtesttools” instead of rtexttools.com.

    Comment by Timothy Jurka — August 17, 2011 @ 4:55 pm

    • Sorry for the error – I hadn’t got around to checking the link (the conference wireless was a bit temperamental).

      Comment by csgillespie — August 18, 2011 @ 11:17 am


RSS feed for comments on this post. TrackBack URI

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

The Shocking Blue Green Theme. Blog at WordPress.com.

Follow

Get every new post delivered to your Inbox.

%d bloggers like this: