Aaron Johnson Now with 50% less caffeine!

Links: 9-15-2009

• Digg the Blog » Blog Archive » Looking to the future with Cassandra
  Interesting article on cassandra, denormalization and mysql.
  (categories: cassandra database digg architecture scalability performance mysql scaling )

• Effective A/B Testing
  Great presentation on A/B testing, would love to work this into Jive Express at some point.
  (categories: testing statistics usability analytics abtesting optimization a/b )

• Local Lucene | GIS Search
  Geo-search using Lucene: I did this a couple years ago using the Great Circle algorithm inside of SQL Server, would be interesting to see how the two compare.
  (categories: lucene search geospatial java solr gis spatial )

• Netflix prize tribute: Recommendation algorithm in Python | This Number Crunching Life
  Quick implementation of the Netflix recommendation algorithm (probablistic matrix factorization) in Python.
  (categories: python netflix algorithm machinelearning algorithms recommendation )