Atlhack

alex (rae)
– wrote fft implementation of auto-correlation,
– because the scipy one was slow / popped-up graph window
– tweaking beat-tracking, gathering scripts

alex (rudnick) and mark forgot what they did,
probably just read blogs

Alex Rae
– integrating c code into python
– debugging swig wrappers, success!
– thesis is due in a few weeks
– going to rewrite some matlab code that he translated into numpy

Alex (Rudnick):
– speeding up scala implementation of sudoku solver
– using arrays instead of lists for random access, solver is now noticeably quicker
– looking for a nice way to do profiling…

Lindsey:
– working on Scheme compiler
– finished compilers assignment tonight, not due ’til Friday!

Lindsey
– had dinner with Dan and Will and talked about logic programming and stuff
– behind on everything, as usual
– probably gets to go to San Mateo at the end of the month for yet another conference for women computer scientists
– which is great and all, but would like, someday, to be invited to a conference for a reason other than being a girl

Alex (Rudnick)
– writing Scala for Sudoku

Alex (Rae)
– got his source separation code working, producing audio output
– surprised by some of the output
– reading a paper about the algorithm
– trying to figure out why it would generate what he heard

First Annual International Twitter Links on Atlhack Notes Day!

alex (rudnick):

• refactoring the code that builds training sets for typo detection, thinking about new attributes
• wants to learn about Python annotations or decorators or whatever you call them, has a cute design for the parser
• headed to talk with IU professors tomorrow

lindsey:

• helping greet new gradstudents
• algorithms/complexity homework tonight (now caught up on grading and compilers hw!)

tejus:

• doing javascript framework performance testing
• got feedback

sonali:

• worked on the user dashboard for scmple
• surfing, read about governor jindal
• joined startup chicks

erik:

• working on mudskipper
• doing filtering and searching with CouchDB
• using lots of CSS to show/hide things, but <option> elements aren’t stylable 🙁

kelly:

• studying for literary criticism midterm
• halfway through the teach for america application process
• preparing for life after college

alex (ray):

• his talk (on generative tabla playing) went well, included a demo
• learning to compile swig interfaces
• is going to interface some C++ code for source separation with python/numpy
• also will translate some matlab code into python

nirmal:

• demoed Deaf 911 for the National Emergency Number Association
• piqued the interest of a telco and some policy-maker types

mark:

• ran into more LiveConnect suffering: java.lang.IncompatibleClassChangeError
• demoralized, will think about what to do on the ride home
• briefly met @tessa and @sheatsb

Mark’s Birthday Hack!

Mark:

• realized security situation for serializing corkbird state is going to be complicated; have to deal with applet security
• error reporting now works; this is good, since there are a lot of errors
• processing sketches use the default Java package, but you can’t import the default package, apparently — figuring out what to do about that

Emily:

• working on personal site (duien.com)
• it aggregates twitter and delicious, now it can pull new entries in

Alex:

• more code delving: figured out file format for new Twidor logs
• wants to rework his gross old Python code and update it so it works with new Twidor logs
• emailed out a bunch of questions to the group, concerned about training classifiers on keystrokes that have already been corrected

Lindsey:

• Helped write an assignment for c311, answered a bunch of questions at office hours.
• tonight: working on homework for Computational Complexity

Special President’s Day Hack.

Mark:

• got in to gradschool! gatech phd program ahoy!
• working on corkbird: uploading sketches works, but need to be fancier about pulling apart jars.
• close to demo-able state (it’s looking pretty sweet)

Tejus:

• making a signup form for scmple (www.scmple.com). It has a really cool ajax.
• Startup Riot is coming up on Wednesday, getting ready.

Alex:

• got into gradschool! Indiana phd program ahoy!
• answering emails, looking at some blogs
• polishing up old log-parsing code from miniqwerty research (typo-detection machine learning rides again!)

Alex (Ray):
– thinking about his thesis work
– has PD (Pure Data) talking with Python over OSC (Open Sound Control)
– using numpy to do matlab-y audio stuff
– is going to build statistical models of tabla playing
– – and use the models to generate more tabla music

Lindsey:
– for Compilers class
– – did register allocation, working on frame allocation
– – not getting enough sleep
– singing Schubert
– grading Schemes

Alex (Rudnick):
– tonight: wrote a script to help manage reading the papers he should be reading
– also tonight: more code archeology on GT research code
– the Scala dancing-links thing works now, but seems slow

Sonali:
– working on scmple
– adding server-side logic

Tejus:
– doing bizdev
– and signup box
– practiced his Startup Riot pitch for Mark and Alex

Mark:
– building corkbird site
– figuring out django
– generating youtube-style ids

Nirmal (hacking-from-home):
– finished decoder for Baudot code
– it works over an acoustic coupler (or just in software)
– runs at 2x realtime on an OpenMoko phone

New Member: Stephen
– researcher at Emory on human vision
– currently migrating a website for work
– poking at his Nokia 770

Nirmal
– ported code for Goertzel algorithm to OpenMoko
– modified it to detect TTY signals (rather than DTMF)
– going to Orlando later in the month to present this “deaf tty” demo

Mansi
– reading The Times of India
– read about Satyam and Aishwarya Rai Bachchan
– who is better looking than Angelina Jolie

Alex
– porting his Python dancing-links implementation to Scala
– now needs to port the sudoku/dancing-links conversion

Lindsey
– wrote more of her compiler
– thinking about lambda calculus
– wrote addition and multiplication, thinking about subtraction

Sonali
– working on the front-end to scmple
rewriting the ajax

Tejus
installing at gitorious for scmple

Mark
very slowly finishing the corkbird deserialization

Warmish winter day old friends hack

Nirmal
destroying scribd,
using custom version of pdf2ppm toget text info,
building a DHTML interface to view pdfs

Mansi
apartment hunting on the ipod

Tejus
tried to learn simpledb
laughed at Tyrus quotes
thinking of running his scmple project on AWS+simpledb

Alex
learning Scala
trying to figure out a good environment to write code in
did some code archeology on old GT code

Lindsey
wrote another pass of her scheme compiler
went to the Google Workshop for Women Engineers
graded scheme homeworks

Rob
tried and failed to install Processing
practiced Kanji on his mobile device

Mark
working on Corkbird
saving things to disk working, now saving to cloud
Java, Django, HTTP form-data

Cold day domestic hack
Pies, knitting, and code

Alex
– this weekend: learning Logo, wrote the “Accordian” [sic] problem in
it (and Haskell)
– it’s an acceptable-ish Lisp, although somewhat clunky. Also seems to
use templates instead of first-class functions
– queuing up a bunch of NLP papers to read
– tonight: Real World Haskell, chapter 4. Adventures in map/reduce.

Lindsey
– tonight: writing an automatic continuation-passing-style transformer
– wrote a compiler for a verysmall subset of Scheme (to x86_64 asm)
– interviewed for an internship at the Goog on Friday
– started being a TA for undergrad Programming Languages! Taught class
for a few minutes today.

Emily
– tonight: writing code in Sinatra, a ruby web framework

Molly
– tonight: knitting a lace shawl
– brought an apple pie and a berry pie
– explaining crochet vs knitting to Mark

Mark
– tonight: writing serialization code for corkbird
– wrote lots of testcases this weekend, which makes writing code easy!