Ruby and R integration with text classification example

1. RUBY AND R
Chang Sau Sheong
Director, Applied Research, HP Labs Singapore
1 © Copyright 2010 Hewlett-Packard Development Company, L.P.

2. About HP Labs
2 © Copyright 2010 Hewlett-Packard Development Company, L.P.

3. HP LABS
– Exploratory and advanced
research group for Hewlett-Packard
– Global organization that tackles
complex challenges facing our
customers and society over the next
decade
– Pushes the frontiers of fundamental
science
– HQ Palo Alto
3 © Copyright 2010 Hewlett-Packard Development Company, L.P.

4. HP LABS AROUND THE WORLD
Bristol St. Petersburg
Beijing
Palo Alto
Bangalore
Haifa Singapore
4 © Copyright 2010 Hewlett-Packard Development Company, L.P.

5. HP LABS SINGAPORE
– Set up in February 2010
– Focus on Cloud Computing
Research Applied Research
• Exploratory research • Applied Research
• Researchers • Innovators
• Change the state of the art • Take the research to the next
stage
• Working closely with the
academic community • Work closely with customers
and business units
5 © Copyright 2010 Hewlett-Packard Development Company, L.P.

6. Ruby and R
6 © Copyright 2010 Hewlett-Packard Development Company, L.P.

7. Programming language and
platform for statistical computing,
licensed under GPL
7 © Copyright 2010 Hewlett-Packard Development Company, L.P.

8. Strengths in
statistical processing
and
data visualization
8 © Copyright 2010 Hewlett-Packard Development Company, L.P.

9. Extensive library of statistical
computing packages (CRAN)
written by statisticians
9 © Copyright 2010 Hewlett-Packard Development Company, L.P.

10. Statistics is not just
for statisticians
10 © Copyright 2010 Hewlett-Packard Development Company, L.P.

11. Recommendation Speech
engine recognition
Fingerprint Spam detection
identification
Card fraud Financial
Face detection forecasting
recognition
Data OCR Credit scoring
mining
11 © Copyright 2010 Hewlett-Packard Development Company, L.P.

12. CRAN
– Almost 2000 packages, mostly created by
statisticians
• BiodiversityR – GUI for biodiversity and community ecology
analysis
• Emu – analyze speech patterns
• GenABEL – study human genome
• Quantmod– quantitative financial modeling framework
• Ftrading – technical trading analysis
• Cyclones – cyclone identification
• DOSim – disease analysis toolkit for gene set
• Agricolae – statistical procedures for agricultural research
12 © Copyright 2010 Hewlett-Packard Development Company, L.P.

13. EXAMPLE R CODE
– EPL data from football-data.co.uk
– Show home/away goals distribution for 201 season
1
13 © Copyright 2010 Hewlett-Packard Development Company, L.P.

14. Why Ruby and R?
14 © Copyright 2010 Hewlett-Packard Development Company, L.P.

15. Stand on shoulders
of giants
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16. –Ruby
• Human focused programming!
• Better general purpose programming capabilities
• Great frameworks!
• Great libraries (20,000+ gems in RubyGems)
–R
• Focus on statistical computing/crunching
• Lots of packages written by domain experts/
statisticians
• Great graphing libraries
16 © Copyright 2010 Hewlett-Packard Development Company, L.P.

17. Ruby and R
integration
17 © Copyright 2010 Hewlett-Packard Development Company, L.P.

18. RINRUBY
– 100% Ruby
– Uses pipes to send commands and evals
– Uses TCP/IP Sockets to send and retrieve data
– Pros:
• Doesn't requires anything but R
• Works flawlessly on Windows
• Work with Ruby 1.8, 1.9 and JRuby 1.5
• All API tested
– Cons:
• VERY SLOW in assigning
• Very limited datatypes: only Vector and Matrix
• Not released since 2009
• Poor documentation
18 © Copyright 2010 Hewlett-Packard Development Company, L.P.

19. RSRUBY
– C Extension for Ruby, linked to R's shared library
– Pros:
• Blazing speed! 5-10 times faster than Rserve and 100-1000 than RinRuby.
• Seamless integration with Ruby. Every method and object is treated like a Ruby object
– Cons:
• Transformation between R and Ruby types aren't trivial
• Dependent on operating system, Ruby implementation and R version
• Not available for alternative implementations of Ruby (eg JRuby)
• Not released since 2009
• Poor documentation
19 © Copyright 2010 Hewlett-Packard Development Company, L.P.

20. RSERVE
– 100% Ruby
– Uses TCP/IP sockets to interchange data and commands
– Requires Rserve installed on the server machine
– Access with Ruby uses Ruby-Rserve-Client library
– Pros:
• Work with Ruby 1.8, 1.9 and JRuby 1.5.
• Session allows to process data asynchronously
• Fast: 5-10 times faster than RinRuby
• Most recently updated (Jan 2011)
– Cons:
• Requires Rserve
• Limited features on Windows
• Poor documentation
20 © Copyright 2010 Hewlett-Packard Development Company, L.P.

21. RAPACHE/RRACK
– Web service based
– Run R scripts as web services, consumed by Ruby front-end apps
– Pros:
• Modular and separate (no direct integration)
• Can be scalable, ‘cloud’-ready
– Cons:
• Requires Rapache/rRack
• rRack is very new (not accepted by CRAN yet, as of today!), requires R 2.13 (just
released a few weeks ago)
• Rapache specific to Apache web server only
• Communications overhead for smaller integrations
21 © Copyright 2010 Hewlett-Packard Development Company, L.P.

22. Let’s look at some
code!
(I’m going to use Rserve)
22 © Copyright 2010 Hewlett-Packard Development Company, L.P.

23. Text classification
23 © Copyright 2010 Hewlett-Packard Development Company, L.P.

24. TEXT CLASSIFICATION
–Automatically sorting a set of documents into
different categories from a predefined set
–Classic uses: Training
Test data
• Spam filtering data
• Email prioritization
Classifier
category
24 © Copyright 2010 Hewlett-Packard Development Company, L.P.

25. 25 © Copyright 2010 Hewlett-Packard Development Company, L.P.

26. TEXT CLASSIFIER CODE
Prepare
26 © Copyright 2010 Hewlett-Packard Development Company, L.P.

27. Train classifier by counting frequency of
each word in the document
27 © Copyright 2010 Hewlett-Packard Development Company, L.P.

28. Get word count
28 © Copyright 2010 Hewlett-Packard Development Company, L.P.

29. What you get
{"check"=>1, "result"=>3, "marissa"=>1, "experi"=>1,
"click"=>1, "engin"=>1, "simpli"=>1, "mistakenli"=>1,
"pick"=>1, "prevent"=>1, "40"=>1, "regularli"=>1, "place"=>1,
"user"=>5, "prefer"=>1, "malevol"=>1, "access"=>1,
"robust"=>1, "servic"=>1, "fault"=>1, "malici"=>1, "list"=>2,
"hand"=>1, "internet"=>1, "attribut"=>1, "instal"=>1,
"file"=>1, "unabl"=>1, "vice"=>1, "stopbadwareorg"=>2,
"merit"=>1, "decid"=>1, "flag"=>2, "saturdai"=>2, "hit"=>2,
"offici"=>1, "error"=>3, "work"=>1, "site"=>5, "happen"=>2,
"incid"=>1, "technic"=>1, "advis"=>1, "put"=>1, "human"=>3,
"harm"=>2, "softwar"=>1, "ms"=>1, "affect"=>1, "carefulli"=>1,
"product"=>1, "presid"=>1, "complaint"=>1, "potenti"=>2,
"googl"=>6, "comput"=>2, "peopl"=>1, "investig"=>2,
"consum"=>1, "danger"=>2, "period"=>1, "wrote"=>2,
"search"=>7, "ascertain"=>1, "blog"=>1, "warn"=>2,
"problem"=>1, "updat"=>2, "minut"=>1, "mayer"=>2}
29 © Copyright 2010 Hewlett-Packard Development Company, L.P.

30. Generate training data for prediction
30 © Copyright 2010 Hewlett-Packard Development Company, L.P.

31. Training data
31 © Copyright 2010 Hewlett-Packard Development Company, L.P.

32. category,googl,report,search,user,review,court,mckinnon,year,internet,microsoft,site,sof
twar,warn,browser,oper,expert,rise,lawyer,digit,extradit,sharpli,error,group,result,syst
em,rebel,econom,presid,crisi,find,year,accus,global,obama,china,civilian,shrink,hous,wal
l,street,quarter,white,heavi,lehman,economi,session,ey,time,davo,human
not_interesting,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,0,0,0,
0,0,0,0,1,0,0,0,0,0,0,0,0,0
not_interesting,0,1,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,1,0,0,5,0,2,0,0,0,3,0,0,0,3,
1,0,0,0,0,0,3,0,0,0,0,0,0,2
not_interesting,0,1,0,0,0,0,0,2,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,1,0,3,0,3,1,2,0,2,0,0,0,
0,0,0,0,0,0,0,3,1,3,1,0,2,0
not_interesting,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,
The top 25 most
0,0,0,0,0,0,0,0,0,0,0,0,0,1
not_interesting,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,2,0,0,1,2,1,4,0,
0,2,0,0,0,2,0,0,0,0,2,0,1,0
frequent words in
not_interesting,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,1,0,0,0,1,0,0,
0,0,3,3,0,0,0,0,0,0,0,2,0,0
the training dataset
not_interesting,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,2,0,0,2,0,0,
2,1,0,0,2,1,0,0,2,0,0,1,0,0
interesting,6,0,7,5,0,0,0,0,1,0,5,1,2,0,0,0,0,0,0,0,0,3,0,3,0,0,0,1,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,3
interesting,0,7,0,0,2,0,0,0,0,0,0,0,1,0,0,1,0,0,3,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0
interesting,0,1,0,0,0,0,0,3,3,1,0,1,1,1,0,3,3,0,1,0,3,0,1,0,2,0,1,0,0,0,3,0,0,0,0,0,0,0,
0,0,0,0,0,0,1,1,0,0,3,0
interesting,0,0,0,0,3,5,5,0,0,0,0,0,0,0,0,0,1,4,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0
interesting,6,0,1,1,0,0,0,0,0,0,0,1,0,0,4,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0
interesting,0,0,0,2,0,0,0,2,1,4,0,2,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,2,0,0
32 © Copyright 2010 Hewlett-Packard Development Company, L.P.

33. category,googl,report,search,user,review,court,mckinnon,year,internet,microsoft,site,sof
twar,warn,browser,oper,expert,rise,lawyer,digit,extradit,sharpli,error,group,result,syst
em,rebel,econom,presid,crisi,find,year,accus,global,obama,china,civilian,shrink,hous,wal
l,street,quarter,white,heavi,lehman,economi,session,ey,time,davo,human
not_interesting,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,0,0,0,
0,0,0,0,1,0,0,0,0,0,0,0,0,0
not_interesting,0,1,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,1,0,0,5,0,2,0,0,0,3,0,0,0,3,
1,0,0,0,0,0,3,0,0,0,0,0,0,2
not_interesting,0,1,0,0,0,0,0,2,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,1,0,3,0,3,1,2,0,2,0,0,0,
0,0,0,0,0,0,0,3,1,3,1,0,2,0
not_interesting,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,
Each line
0,0,0,0,0,0,0,0,0,0,0,0,0,1
not_interesting,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,2,0,0,1,2,1,4,0,
0,2,0,0,0,2,0,0,0,0,2,0,1,0
represents 1
not_interesting,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,1,0,0,0,1,0,0,
0,0,3,3,0,0,0,0,0,0,0,2,0,0
document trained
not_interesting,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,2,0,0,2,0,0,
2,1,0,0,2,1,0,0,2,0,0,1,0,0
interesting,6,0,7,5,0,0,0,0,1,0,5,1,2,0,0,0,0,0,0,0,0,3,0,3,0,0,0,1,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,3
interesting,0,7,0,0,2,0,0,0,0,0,0,0,1,0,0,1,0,0,3,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0
interesting,0,1,0,0,0,0,0,3,3,1,0,1,1,1,0,3,3,0,1,0,3,0,1,0,2,0,1,0,0,0,3,0,0,0,0,0,0,0,
0,0,0,0,0,0,1,1,0,0,3,0
interesting,0,0,0,0,3,5,5,0,0,0,0,0,0,0,0,0,1,4,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0
interesting,6,0,1,1,0,0,0,0,0,0,0,1,0,0,4,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0
interesting,0,0,0,2,0,0,0,2,1,4,0,2,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,2,0,0
33 © Copyright 2010 Hewlett-Packard Development Company, L.P.

34. category,googl,report,search,user,review,court,mckinnon,year,internet,microsoft,site
,softwar,warn,browser,oper,expert,rise,lawyer,digit,extradit,sharpli,error,group,result,
system,rebel,econom,presid,crisi,find,year,accus,global,obama,china,civilian,shrink,hous
,wall,street,quarter,white,heavi,lehman,economi,session,ey,time,davo,human
not_interesting,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0
,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0
not_interesting,0,1,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,1,0,0,5,0,2,0,0,0,3,0,0,0,3,
1,0,0,0,0,0,3,0,0,0,0,0,0,2
not_interesting,0,1,0,0,0,0,0,2,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,1,0,3,0,3,1,2,0,2,0,0,0,
0,0,0,0,0,0,0,3,1,3,1,0,2,0
Categories set
not_interesting,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,1
not_interesting,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,2,0,0,1,2,1,4,0,
0,2,0,0,0,2,0,0,0,0,2,0,1,0
when the classifier
not_interesting,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,1,0,0,0,1,0,0,
is created
0,0,3,3,0,0,0,0,0,0,0,2,0,0
not_interesting,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,2,0,0,2,0,0,
2,1,0,0,2,1,0,0,2,0,0,1,0,0
interesting,6,0,7,5,0,0,0,0,1,0,5,1,2,0,0,0,0,0,0,0,0,3,0,3,0,0,0,1,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,3
interesting,0,7,0,0,2,0,0,0,0,0,0,0,1,0,0,1,0,0,3,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0
interesting,0,1,0,0,0,0,0,3,3,1,0,1,1,1,0,3,3,0,1,0,3,0,1,0,2,0,1,0,0,0,3,0,0,0,0,0,0,0,
0,0,0,0,0,0,1,1,0,0,3,0
interesting,0,0,0,0,3,5,5,0,0,0,0,0,0,0,0,0,1,4,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0
interesting,6,0,1,1,0,0,0,0,0,0,0,1,0,0,4,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0
interesting,0,0,0,2,0,0,0,2,1,4,0,2,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,2,0,0
34 © Copyright 2010 Hewlett-Packard Development Company, L.P.

35. category,googl,report,search,user,review,court,mckinnon,year,internet,microsoft,site,s
oftwar,warn,browser,oper,expert,rise,lawyer,digit,extradit,sharpli,error,group,result,sy
stem,rebel,econom,presid,crisi,find,year,accus,global,obama,china,civilian,shrink,hous,w
all,street,quarter,white,heavi,lehman,economi,session,ey,time,davo,human
not_interesting,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,0,0,0,
0,0,0,0,1,0,0,0,0,0,0,0,0,0
not_interesting,0,1,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,1,0,0,5,0,2,0,0,0,3,0,0,0,3,
1,0,0,0,0,0,3,0,0,0,0,0,0,2
not_interesting,0,1,0,0,0,0,0,2,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,1,0,3,0,3,1,2,0,2,0,0,0,
Number indicates the
0,0,0,0,0,0,0,3,1,3,1,0,2,0
not_interesting,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,1
number of times the
not_interesting,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,2,0,0,1,2,1,4,0,
0,2,0,0,0,2,0,0,0,0,2,0,1,0
word appears in that
not_interesting,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,1,0,0,0,1,0,0,
0,0,3,3,0,0,0,0,0,0,0,2,0,0
not_interesting,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,2,0,0,2,0,0,
document
2,1,0,0,2,1,0,0,2,0,0,1,0,0
interesting,6,0,7,5,0,0,0,0,1,0,5,1,2,0,0,0,0,0,0,0,0,3,0,3,0,0,0,1,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,3
interesting,0,7,0,0,2,0,0,0,0,0,0,0,1,0,0,1,0,0,3,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0
interesting,0,1,0,0,0,0,0,3,3,1,0,1,1,1,0,3,3,0,1,0,3,0,1,0,2,0,1,0,0,0,3,0,0,0,0,0,0,0,
0,0,0,0,0,0,1,1,0,0,3,0
interesting,0,0,0,0,3,5,5,0,0,0,0,0,0,0,0,0,1,4,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0
interesting,6,0,1,1,0,0,0,0,0,0,0,1,0,0,4,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0
interesting,0,0,0,2,0,0,0,2,1,4,0,2,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,2,0,0
35 © Copyright 2010 Hewlett-Packard Development Company, L.P.

36. Test data
36 © Copyright 2010 Hewlett-Packard Development Company, L.P.

37. category,googl,report,search,user,review,court,mckinnon,year,internet,micr
osoft,site,softwar,warn,browser,oper,expert,rise,lawyer,digit,extradit,sha
rpli,error,group,result,system,rebel,econom,presid,crisi,find,year,accus,g
lobal,obama,china,civilian,shrink,hous,wall,street,quarter,white,heavi,leh
man,economi,session,ey,time,davo,human
category,0,0,0,2,0,0,0,2,1,4,0,2,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0
,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0
37 © Copyright 2010 Hewlett-Packard Development Company, L.P.

38. Using different
classification models
38 © Copyright 2010 Hewlett-Packard Development Company, L.P.

39. NAÏVE BAYES
39 © Copyright 2010 Hewlett-Packard Development Company, L.P.

40. SVM
40 © Copyright 2010 Hewlett-Packard Development Company, L.P.

41. RANDOM FOREST
41 © Copyright 2010 Hewlett-Packard Development Company, L.P.

42. NEURAL NETWORKS
42 © Copyright 2010 Hewlett-Packard Development Company, L.P.

43. Using the classifier
43 © Copyright 2010 Hewlett-Packard Development Company, L.P.

44. 44 © Copyright 2010 Hewlett-Packard Development Company, L.P.

45. 45 © Copyright 2010 Hewlett-Packard Development Company, L.P.

46. RESOURCES
– HP Labs Worldwide – Rserve-Ruby-Client
http://www.hpl.hp.com/ https://github.com/clbustos/Rserve-
– R Project Ruby-client
http://www.r-project.org/ – rApache
– RsRuby http://rapache.net/index.html
https://github.com/alexgutteridge/rsrub – rRack
y https://github.com/jeffreyhorner/rRack/
– RinRuby
http://rinruby.ddahl.org/
– Rserve
http://www.rforge.net/Rserve/
46 © Copyright 2010 Hewlett-Packard Development Company, L.P.

47. Thank you
sausheong@hp.com
http://twitter.com/sausheong
http://blog.saush.com
47 © Copyright 2010 Hewlett-Packard Development Company, L.P.