Clustering F/OSS Library for .NET

Anyone aware of F/OSS library for clustering algorithms? Specifically interested in Hierarchical Clustering. Surely there are some libs available, not requiring writing up from scratch.

p.s I know about NMath, it i开发者_如何学运维s $ ware

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Decided to write my own. I will open-source it asap.

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Have you tried NGrid? http://www.ohloh.net/p/ngrid

And here's another "Legion" http://www.codeproject.com/KB/silverlight/gridcomputing.aspx