Today is the last day of my paternity leave. Before going back to work, I guess it's time to log the fun I have had with the Netflix challenge.
I began to study the problem when I got a break between projects in late October 2008. After reading papers from the leading teams (many thanks to BellKor and Gravity for their papers), I realized it was such an interesting and well-defined problem. Since the college days, I have always wanted to work on Artificial Intelligence, but ended up living with VLSI designs everyday. Now here is a good chance to satisfy my itch and learn from experts in this area. Besides, the remote chance of one million dollars surely does not hurt.
This actually became a perfect task after my son was born. The competition is mostly about algorithms, yet needs significant amount of run time to produce results. So I can do the thinking while holding the baby in my arms and mumbling lullabies. Find a break to code something, kick off a run, only need to come back hours later to check the results. And when I am watching baby gradually learn to interact with the world, I couldn't help thinking where machine learning can lead us to.
There is a big difference though. While my son keeps growing everyday, the progress on the Netflix prize seems to reach an asymptotic stop. As of today, my score is 9.52% improvement. Starting from tomorrow, there will be less time for me to spend on the problem, but I will still work on it. There are still a few ideas to explore and it's fun!
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Any revelations on the tyep of algorithm you're using?
ReplyDeleteAre you combining several things together, or is there any major algorithm you're using?
I am using an ensemble of KNN, Matrix factorization/SVD, Neural networks/RBM, global effects etc.
ReplyDeleteThey are pretty much the same as described in the papers, just with some small tweaks.
Could you email me at jrkjared at aol dot com? I have a business proposal for you. I am a current MBA student that could use your skills to build a business.
ReplyDeleteThank you,
Jared
One against so many experts....I'm pulling for you....Enjoy the baby, they grow up fast....
ReplyDeleteJoe
are you by any chance from latvia?
ReplyDeleteHi Dace,
ReplyDeletecongrats for excellent results so far. I'd like to discuss some ideas with you, please drop a mail to rene0 at finantic dot de if you are interested. I am physicist and work heavily with data mining algorithms in the financial realm.
ciao, René
Dace,
ReplyDeleteSeems like you are getting a bunch of these inquiries, but would love to talk to you about a company I have founded. I'm a successful entrepreneur already, but have a great idea that you could potentially be a part of. Ping me if you'd like to chat. -Dave
Dace,
ReplyDeleteWhy are you not teaming up with the rest?
Hi Dace,
ReplyDeleteI am a student, Can you pls tell me how we can check th error on qualifying set? I think after the completion of the Netflix prize, we do not have any support for it?
Thank you
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