Data cleansing, perceptual hash and others

Got dirty data? I am very impressed with this data cleansing tool built by the Freebase guys. Specifically because it is open source and the UI is so well done - Freebase Gridworks.

Haha, yes another NoSQL system which claims incredible performance - KumoFS.

Spring. No, not the season, I mean the framework. I have many questions about why it's required in light of the supposedly simplified new JEE spec.

I wonder how all those various distributed Lucene index implementations perform. Apache Solr itself offers most of those enterprise features.

• http://www.compass-project.org/
• http://code.google.com/p/terrastore/
• http://github.com/tjake/Lucandra
• http://sna-projects.com/zoie/
• http://katta.sourceforge.net/

Perceptual hashing to detect duplicate images. I'll file this under all the other "interesting" hashing techniques.

The LinkedIn guys have a simple implementation of a load balancer using Zookeeper and NIO/Netty. Nothing new here, but this one is in Scala. Apparently they like Scala too, just like the Twitter dev team.

Have a nice and long (for some) weekend!