State of Data Last Week – Nov 20

No SoD newsletter next week. Happy Thanksgiving, Everyone!

#Analysis –Signups increased by 60% — after removing the signup form! Yet another KSU (Keystrokes per Sign-up) victory!

#Architecture – RIP Web SQL Database – W3C Working Group killed it this week L

#Big Data – Secrets of LinkedIn Data Scientists

#DBMS – What happens when you try to UPDATE a record with EXACTLY same values as before? Is it wasted work? Bad news – actual record does get (redundantly) modified; Good News – the index doesn’t.

#learning – Least scary way of learning Ruby (with Zombies). It needs register with email. Nice material (even technical ones!).

#visualization – Mozilla Data Visualization contest is now open with data sets.

How to Tell Stories with Data is a aggregation of tools and methods. Most slides are online now.


  • Tarrot card readers – or life insurers – could tell how long you would live by just looking at cookies at your browser?
  • Housing crash was (also) blamed on ‘dramatic fall in inter-state migration rate’. This analysis (PDF) from FED now shows the fall is not that dramatic; resulted from wrong way of compensating for missing data. Data quality, anyone?
  • How to show off big numbers – ‘annual mileage of U-Haul trucks, trailers and tow dollies would move a family to the moon and back more than 20 times per day, every day of the year’. Tow dollies! Seriously??
  • Mind boggling soccer free kicks – why so difficult for even expert Goal keepers when taken from far? The ball takes sharpest spin when it slows down the most. Pretty much the same for baseball.


About Nilendu Misra
I love to learn, create and coach. Things that I do well are - Communicating ideas - verbally or through words and diagrams; Problem Solving - Logical or Abstract; Very Large Scale Systems; think about 'Frighteningly Simple' approach first. Things that I intend to do better are - Establishing Stringent Process; Exchanging Tough Feedback; Keeping up with my reading or To-Do list to be able to completely relax.

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