Export or edit this event...

Portland R User Group Meetup

OHSU Center for Health & Healing
3303 S.W. Bond Ave.
Portland, OR 97239, US (map)

Room 3171



Portland R User Group

Main talk: "Rating Systems" Albyn Jones

Lightning talk: "R, JavaScript, Protein Folds, and Compressed Sensing: A Quartet of Awesome" Kevin Lynagh

Social hour (following talks): Le Hana Japanese Bar & Grill 3500 SW River Parkway

Talk descriptions:

"Rating Systems" An overview of rating systems: what is a rating system? (as opposed to polls, BCS, the NCAA RPI, bridge master points, etc), a little history (the Elo system for chess), and then a discussion of two or three in more detail, and how one might do the computations in R.

"R, JavaScript, Protein Folds, and Compressed Sensing: A Quartet of Awesome" This talk is a lightning overview of a protein fold search algorithm based on compressed sensing. The focus of the talk will be on the algorithm's implementation and its testing; more specifically, how to complement R with other tools. I will discuss

  • speeding up R linear algebra routines
  • using Ruby to structure raw data into a lightweight SQL database accessible by R
  • presenting results on the web using Protovis and other JavaScript visualization libraries

Details on the algorithm are online at


Speaker bios:

Albyn Jones- BA UCLA 1978, PhD Yale (Statistics) 1986. I have worked as a research associate at the National Research Council, and served on the faculty of Carnegie Mellon, Reed, and as a visitor at Yale. I have worked on problems ranging from numerical analysis (error in floating point computation), to rating systems, earthquakes and microarray analysis. Former students have gone on to do Good Things, like starting R Meetups.

Kevin Lynagh- Studied organic synthesis, graphic design, and traditional French baking before getting an undergraduate degree in physics. His first scientific program was a symbolic algebra system in LISP designed to solve and typeset his freshman homework. He is not qualified to speak on any of the subjects of this talk.

Location information:

OHSU's Center for Health & Healing South Waterfront district http://www.ohsu.edu/x.... 3303 SW Bond Avenue Between Moody Ave. and Bond Ave., Whitaker St. and Gibbs St. At the base of the Portland Aerial Tram Streetcar stops: SW Moody & Gibbs (coming from downtown) OHSU Commons (heading to downtown) On-street parking available Bicycle parking around Gibbs and Bond near base of Tram

Room 3171 (Conference Room 1A) Take elevator to the 3rd floor, follow signs to the Conference Center

Le Hana 3500 SW River Parkway Corner of River Parkway and Curry Street One block south and one block east of the Center for Health & Healing

Portland, OR 97239 - USA

Thursday, December 16 at 7:15 PM

Photo: http://photos1.meetupstatic.com/photos/event/a/7/7/e/event_16962878.jpeg

Details: http://www.meetup.com/portland-r-user-group/calendar/15624674/