I have a few posts related to Mazada Marvasti work, for instance:
CMG'09: Performance Data Statistical Exceptions Analysis
I actually still use time to time the product which is based on his work (former Alive tool) and I see also that he has been publishing recently a lot of papers and patents. The following paper from VMware published on RG has a long list of references to his work. That is very interesting and I should look at them more closely. Interesting that the paper declares that Mazda's anomaly and trend detection technique now are used for a cloud based infrastructure!