Interview Question in Sql Server 2005


 

Interview Question :: Collaborative filtering algorithms

Does anyone know of an easy to use collaborative filtering tool? Ideally, that would be an add-in for Excel to work on an external data source on SQL Server.

Alternatively, any indication on how to code such an algorithm in Excel VBA or VB 2005?

The dataset consists of around 1,000,000 records.
by ksk