Valentine’s tech log: [PostgreSQL] Index sizes depending on the type of the field being indexed
Saturday, April 23rd, 2011empirical data about difference in index sizes depending on the data type
Archive for the 'data' Category
Schneier on Security: A Revised Taxonomy of Social Networking Data
Tuesday, August 10th, 2010social network user data categorization by Bruce Schneier (useful)
Top 1000 sites[on the internet] – [from google's] DoubleClick Ad Planner [statitics]
Friday, June 4th, 2010Top 1000 by google
[RUS]Проектирование френдленты и рейтингов / Проектирование БД : Форум на SQL.RU | [Forum SQL.ru] Modeling frendlist, ratings
Wednesday, May 5th, 2010Some 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, 2009google 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, 2009tells 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, 2009PITRTools is a set of wrapper scripts that provide warm standby functionality to PostgreSQL. The software is essentially two scripts, cmd_archiver.py and cmd_standby.py. The project is under the BSD license.
Why power failures are bad for your data
Friday, July 25th, 2008artilcle 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, 2007Interesting 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 DatabaseAnswers.org
Friday, June 15th, 2007useful data model samples