Let your customers talk

Here are three links from the data sci­ence world that are worth your time.

  1. Actionable data sci­ence in sales. Let your cus­tom­ers talk for 4+ minutes. Don’t talk about your com­pany for more than 2 minutes. And more data-driven ad­vice.
  2. How to get in­to nat­ur­al lan­guage pro­cessing. YCombinator has star­ted a series of blog posts titled Paths on get­ting star­ted with emer­ging fields. The first is on NLP.
  3. The cur­rent state of auto­mated ma­chine learn­ing. An over­view of lib­rar­ies that auto­mat­ic­ally ap­ply ma­chine learn­ing tech­niques to data­sets.

But re­mem­ber: amid­st all this big data, we have a big­ger small-data prob­lem.

Silk Board Traffic

It’s fas­cin­at­ing to watch the ebb and flow of traf­fic in Bangalore. Here’s an an­im­a­tion of the Monday traf­fic at the Silk Board junc­tion, which is no­tori­ous for con­ges­tion.

Through the night, the traf­fic is fairly slow. But from around 5:00am, a slow build-up of traf­fic starts from the south. This is mainly the com­mer­cial and bus traf­fic from Tamil Nadu en­ter­ing Bangalore, to the point that there is a jam on Hosur Road by 5:30am. This sta­bil­ises by around 6:30am though.

Up to 7:30am, the junc­tion is fairly free. From then on, the heavy traf­fic builds up on the east-west Outer Ring Road. Eastward traf­fic from BTM lay­out and Westward traf­fic from HSR lay­out get bottleneck-ed at the sig­nal. The north-south Hosur Road is re­l­at­ively free.

But by 8:30am the sig­nal is com­pletely choked and stays that way through the morn­ing.

This con­tin­ues un­til post-lunch, when the traf­fic gently lets up. At 2:30pm, Silk Board isn’t dan­ger­ous.

But by 3:30pm traf­fic starts build­ing up again to the point that by 5:30pm the sig­nal is com­pletely choked.

By 6:30pm, Silk board is a sig­nal you don’t want to cross. It would save you an hour to get off your vehicle, walk a kilo­metre across the sig­nal, and get in­to an­other vehicle.

By around 11:00pm, the traf­fic has let off.

Sunday Traffic

On the oth­er hand, Sunday is a sig­ni­fic­antly bet­ter ex­per­i­ence. There’s really heavy traf­fic only between 5:00pm to 8:00pm.

About the images

We used Selenium to take screen­shots of Bangalore traf­fic every 5 minutes from Google Maps and an­im­ated these. ImageMagick helped crop to Silk Board and an­im­ate it as GIFs.