mongodb

Apache Mahout 0.6 released

February 8, 2012
Mahout, Apache, mongodb, Cassandra

Apache Mahout 0.6 released # As of Monday, February 6th a new Apache Mahout version was released. The new package features Lots of performance improvments: A new LDA implementation using Collapsed Variational Bayes 0th Derivative Approximation - try that out if you have been bothered by the way less than optimal performance of the old version. Improved Decision Tree performance and added support for regression problems Reduced runtime of dot product between vectors - many algorithms in Mahout rely on that, so these performance improvements will affect anyone using them. ...

Devoxx University – MongoDB, Mahout

December 5, 2010
Mahout, mongodb, NOSQL

Devoxx University – MongoDB, Mahout # The second tutorial was given by Roger Bodamer on MongoDB. It concentrates on being horizontally scalable by avoiding joins and complex, multi document transactions. It supports a new data model that allows for flexible, changeable “schemas”. The exact data layout is determined by the types of operations you expect for your application, by the access patterns (reading vs. writing data; types of updates and types of queries). ...