Archive for the 'data' Category

Valentine’s tech log: [PostgreSQL] Index sizes depending on the type of the field being indexed

Saturday, April 23rd, 2011

empirical data about difference in index sizes depending on the data type

Schneier on Security: A Revised Taxonomy of Social Networking Data

Tuesday, August 10th, 2010

social network user data categorization by Bruce Schneier (useful)

Top 1000 sites[on the internet] – [from google's] DoubleClick Ad Planner [statitics]

Friday, June 4th, 2010

Top 1000 by google

[RUS]Проектирование френдленты и рейтингов / Проектирование БД : Форум на SQL.RU | [Forum] Modeling frendlist, ratings

Wednesday, May 5th, 2010

Some comments on modeling friendlits user activity, for social media websites (or apps)

Official Google Research Blog: All Our N-gram are Belong to You

Tuesday, September 22nd, 2009

google word frequency dataset, n-gram models. Donwload or DVDs are available from U of Penn. ~24GB.

Analysis from the Bottom Up | The Data Model That Nearly Killed Me

Tuesday, April 28th, 2009

tells about problems with IT in HealthCare and Obama’s electronic records plan from one person’s 1fst hand experience. Make user u read the comments. (allow 30-40 minutes )

Pitrtools – Trac /set of tools for setting up PITR on PostgreSQL/

Thursday, February 26th, 2009

PITRTools is a set of wrapper scripts that provide warm standby functionality to PostgreSQL. The software is essentially two scripts, and The project is under the BSD license.

Why power failures are bad for your data

Friday, July 25th, 2008

artilcle tells what happens when u pull the plug … in short nothing good will happen, so use UPS! read article for details

kelemen-2007-C5-Silent_Corruptions.pdf (application/pdf Object)

Friday, September 14th, 2007

Interesting paper about data corruption from CERN. Basically they did verify that when you write a file to a disk, it not always come back the way it was written. …. so …. you have been warned ;-)

Library of Free Data Models from

Friday, June 15th, 2007

useful data model samples