Year: 2006
Netflix prize
Netflix has released a sample of its customers’ movie ratings at Netflix Prize. You can download these (700 MB), create an algorithm that rates the training data, run it against the test data, and see if you can get better ratings than their algorithm. If you do, you win $1 million. (Chris Anderson explains why.)
Tamil lyrics quiz – TMS MGR
Here are words from the middle of 8 songs TMS has sung for MGR. Can you guess which movie they are from?
Don’t worry about the spelling. Just spell it like it sounds, and the box will turn green.
If the Tamil lyrics are not OK, turn on tamil scripts.
Search for the song and listen online, if you want to confirm your guess.
iruvar onRaanaal oruvar enRaanaal
iLamai mudivadhillai iLamai mudivadhillai
oru thavaRu seydhaal adhaith therindhu seydhaal
avan dhEvan enRaalum vidamaattEn
avaL illaamal naan illai
naan illaamal avaL illai
kaatru nammai adimai enRu vilagavillaiyE
kadalum neerum adimai enRu suduvadhillayE
mullai poovil aadum karu vaNdaagavE, mugil munnE aadum vaNNa mayil pOlavE
anbai naadi naadi undhan arugil vandhu ninREn, inbam ennum poruLai ingu kaNdEn
neela vaanam illaadha oorE illai, ulaginil mazhai inRi yEdhum illai
amudhE unai anRi vaazhvE illai, anbE idhu unmaiyE
andha oru naaL aanandha thirunaaL inRu ninaiththaal ennenna sugamO
paadhi vizhigaL moodik kidandhEn paavai mEniyilE
pudhiya sooriyanin paarvaiyilE
ulagam vizhiththukkoLLum vELaiyilE
Software for my new laptop
And so, thanks to Infosys Consulting being spun off as a separate legal entity in the UK, I got my new laptop. (Because our old laptops were legally the assets of Infosys Technologies Ltd, and not Infosys Consulting Inc. Weirder things have happened, but who’s complaining?)
My old Toshiba Portege A200 has been replaced by a Dell Latitude D420 (which I was dreaming for, after having just read Jeff’s post on big laptops).
Firstly, it’s light. I thought my Toshiba was light compared to the Dell monsters others had, but this weighs 1.4 kgs! Secondly, it’s thin. It’s thinner than some of the paper notebooks I used to carry. It’s hard to imagine where we will be in 5-7 years time if innovations keep rolling in at this rate.
There were only two (minor) problems I saw with it. It didn’t have an S-Video port — so I can’t watch movies on TV. And it had a fairly small (12″) screen. Being a wide screen, I get a lot less height than I used to. I’m still having some trouble getting used to that, especially when browsing tall pages but it’s a good laptop for playing games such as 올인구조대.
My weekend was like a kid in a candy store. Here’s what I did.
Uninstalled useless software: The laptop came with Roxio Easy CD Creator 5 Basic and PowerDVD 5.1. I got rid of them.
Copied all my files: I had about 25GB of data (15GB of music, 5 GB of books, 2 GB of video, 3GB of work). This was a bit tricky: some of my data was in SVN repositories, and I had to migrate them.
Configured the new system by literally running through each entry in the control panel, and ensuring that it’s the same as my old machine. Most of my changes are spartan (aimed at less eye-candy, usually). For example,
- Display: I switch to Windows Classic and a black background. I used to do this because it takes less memory, but with 1GB of RAM, that’s no longer a consideration. I just got used to this. I also turn off all special effects, and remove everything except the Recycle Bin from my desktop. But the really useful thing is to turn on ClearType.
- Taskbar and Start Menu: I switch to the Classic Start Menu, and turn off everything. Here’s what mine looks like now.
- Toolbars: I like my toolbars to fit on one line. So I do some heavy customisation with the Internet Explorer toolbar to shrink it to a line. Similarly on the desktop toolbars.
Installed software. This is the fun part. I’ve made a number of changes to my software inventory.
- ActivePerl: Perl is the only language I still know.
- ActivePython: I’m learning Python. I’m not impressed, but the Python Image Library makes jigsaw quizzes easier than in Perl.
- Apache HTTP server: To test this web page locally.
- Audacity: To record and convert sounds. I’ve ditched Goldwave.
- Camstudio: To capture screen sessions.
- Crimson Editor: I’m still trying to pick a good text editor. (I need block operations, filtering, regular expressions and syntax highlighting. No editor seems to offer all of these. Filtering is especially rare.)
- Cygwin: Just for the basic tools (head, tail, less). UnixUtils would do just fine, actually.
- DX-Ball 2: The only game I play other than Solitaire, Minesweeper and Age of Kings.
- Google Desktop: I can’t live without it any more.
- Google Earth: I find Google Maps faster and better (because of the street maps).
- Google Toolbar for IE: It practically replaces my address bar.
- ImgBurn: I’m trying it instead of Nero. Except for multi-session support, it’s great.
- Microsoft Reader: I have a lot of books in the .LIT format
- Mozilla Firefox: Mainly for its extensions (Google Suggest, NextPlease, Tab Mix Plus, Google Bookmarks Button, Extended Statusbar, IE Tab, Live HTTP Headers, Web Developer)
- Paint.NET: Quicker than Photoshop. Mostly I just crop images.
- Picasa: Adequate for viewing photos.
- Powertoys for Windows – TweakUI: To make Windows even more spartan.
- Restoration: Can restore permanently deleted files.
- Subversion: I like the version numbers (1, 2, 3, …) better than CVS’ (1.1, 1.1.1, 1.1.1.1, …).
- VirtualDub: Mainly to convert videos from my digicam to DivX.
- VLC player: When all else fails, I turn to VLC.
- WinAmp: with Media Library import/export and Pepper
- WinRAR: For the occasional .rar download
And finally, after reinstalling my SVN repository and copying my WinAmp playlists, Firefox bookmarks, etc, my new laptop feels as good as old.
Playing sounds backwards
You can play a video backwards and still recognise the scenes quite well. Can you do that with sound?
I tried it on this Bryan Adams clip of Summer of ’69 (mp3). When played backwards (mp3), it almost sounds like Arabic!
Instruments sound weird backwards too, like the guitar played backwards and drums played backwards.
It’s seems obvious once you see the wave file. The picture below shows the guitar. The sounds are clearly not symmetric left to right.
Whereas this guitar is a lot more symmetric, and doesn’t sound too different backwards.
So how come we can’t recognise sounds played backwards, but can recognise video played backwards? (Initially, I thought it was a trivial question. But I couldn’t find a trivial answer. The question may be subtler than it looks.)
Top 10 bittorrent sites comparison
A comparison of the top 10 bittorrent sites. BTJunkie emerges the winner.
Tamil lyrics quiz – TMS Sivaji
Here are words from the middle of 10 songs TMS has sung for Sivaji. Can you guess which movie they are from?
Don’t worry about the spelling. Just spell it like it sounds, and the box will turn green.
If the Tamil lyrics are not OK, turn on tamil scripts.
Search for the song and listen online, if you want to confirm your guess.
siRagil enai moodi arumai magaL pOla vaLarththa kadhai sollavaa
kanavil ninaiyaadha kaalam idai vandhu piriththa kadhai sollavaa
veLLi alai mElE thuLLum kayal pOlE
alli vizhi thaavak kaNdEn en mElE
undhan meen vizhigaLaik kaaNum nadhiyin meengaLum thuLLi aadudhE
aaNezhil mugam vaanmadhi ena alliyum ummai naadudhE
nadamaadum mEgam nava naagareegam
alangaarach chinnam alai pOla minnum
singaththin kaalgaL pazhudhupattaalum seetram kuRaivadhundO
sindhaiyum seyalum onRu pattaalE maatram kaaNbadhundO
kannith thamizh thandhadhoru thiruvaasagam
kallaik kani aakkum undhan oru vaasagam
en manam nee arivaay, undhan eNNamum naan arivEn
innamum oomaiyaippOl maunam yEnadi thEn mozhiyE
paRavaiyaik kaNdaan vimaanam padaiththaan
paayum meengaLil padaginaik kaNdaan
sollenRum mozhi enRum poruL enRum illai poruL enRum illai
sollaadha sollukku vilai yEdhum illai vilai yEdhum illai
vaarthai vandhadhum vaay thiRandhadhaa
vaay thiRandhadhaal vaarthai vandhadhaa