Activars

I like screencast and keynote, they are great ways of learning practically. But some people don’t have much time to watch or listen to all these. Or maybe you forgot some ideas were presented, but it’s difficult to select the part you want to find in the video – you end up with watching the video again sometimes. So here I typed in a short summary of the keynote. If you are still interested, it’s worth to watching the video. And thanks to David Thomas giving this talk.

Presenter: David Thomas
Background: Last RubyConf attended was in 2005, started working on Ruby back in 1999. He wrote books, talked at many events and went to a lot of conferences. HE recently went to many Rails conferences.

Why Fork Ruby

There are a lot of active project forking Ruby interpreter, e.g. JRuby, IronRuby, MacRuby, but they are not forking the Ruby language.

Problem with Release Time

1.0 -> 1.2 tookk 14 months -> 1.4 (8 months) -> 1.6 (13 months) -> 1.8 (48 months) -> 1.9 (54 months)

• As you can see, bigger changes we make, the bigger challenges they are, more time required for next release.


• The bigger changes make developer difficult to adopt to these new features.


• Less people use the new release feature, release team will not be able to find problems.

Some (Potential) Projects Ideas

RubyLite

RubyLite is a light version of Ruby. The idea is that moving those listed less used features into Gem, developer install those gems only when they needed.

• One of the things we can do with RubyLite is to lose some language features that we normally don’t use (e.g.):
  
  
  
  • %q delimiters
  
  
  • implicit string concatenation
  
  
  • alias
  
  
  • nested assignment
  
  
  • :: sign for method call

• And other features we can get rid of: class variables, global variables, many combination of $ sign, unless/until, protected, proc
• One encoding will make library much smaller, so how about support utf8.
• Losing Built-in classes and modules: Complex, File::Stat, FileTest, Mutex, ObjectSpace, Process::Gid/Status/Sys/Uid, Rational, TreadGroup
• Losing Built-in methods, a lot of methods are vibrations that produces the same result.

Parallel Ruby

Ruby already have the construction to produce parallelism: a, b = b, a

Ideally, Dave suggested that we could perform calculation using this parallel feature in separate threads or processes: a, b = calc1(x), calc2(y). He used some sample code of finding longest word in English, which demonstrated that a few lines code produced Map/Reduce.

Optionally-typed Ruby

Closure-based Ruby

This Is the Ruby with block, and it should be easy to create lambda. Suggestion is to remove {} sign for hash. Maybe we can express methods and classes in blocks.

Conclusion

There is nothing wrong with Ruby, “but that shouldn’t stop us from having fun”. The community should fork Ruby and experiment with it. If the result is positive, they will be put in main Ruby release. The Ruby release itself should not be part of the experiment.

Have been waiting this day for several weeks now since I received invitation to Computer Sicence 2008 conference hold at Cambridge Homerton college.

To get UK research fund for international student become rather difficult. Unfortunatly, I’m in this hassle right now together with this economic down time.

So finally I’m off there for three days. Hoping to get some answers, ideas and help.

The conference was mainly about giving insite view of computer science research. For those who are looking for a reaseach career, we were taught a few tips. Some conference seminas are absolutly fabulars!

Why comics is important in research?

The seminar I enjoyed most was “The Power of Procrastination” given by Jorge Cham. He earned PhD in mechanical engineering from Stanford University and turned out to be a comic producer. He’s the creator of Piled Higher & Deeper (PHD Comics). The comics is based on some stories/conversation between gradudate students and PhD students. It makes people laugh in the case that some scene are happening in student life. Go to the PhD comics website, check out those archived comics.

Microsoft Research

One of the MS research branch is located in Cambridge, of course they presented and demoed some latest high tech(facial detection). They have more information on their Research website.

Google Research

This was a fun part. Actually, Google doesn’t have a specialised research branch, so, why they presented and sponsored the conference? One of the presenter, a Google engineer manager, said that their engineers do both engineering and research work at the same time. For example, their production server disk format is developed by their engineer to handle large a mount to search requests and caching, even operating system is speciallised designed for super large amount of requests. There is a wide list of unresolved issues to research on. So actually, even in this layoffs season(see yahoo action), it’s pretty amazing Google still have spares to hire more people, of course they have to be top notch.