This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
Where exactly is your problem? Eclipse? Mahout? The algorithm? Fetching the data? Why are the wikis and blogs that you checked not enough?
Anyhow, nothing that you mentioned has anything to do with "build tools".