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Persist/Serialize ?

    Question

  • After training a model and getting a posterior distribution how do you persist or serialize it so you can use the model again in another application or session?  For example if you have a gaussian distribution you have trained what is the best way to store it? Do you just keep mean and std?
    Tuesday, February 28, 2012 6:58 PM

All replies

  • It will depend on various things. Whether you want long or short term persistence, how efficient you want it to be, what apps you want to communicate with etc.

    You can use standard .NET serialization binary or XML serialization (http://msdn.microsoft.com/en-us/library/7ay27kt9(v=vs.71).aspx); all distributions are marked with a Serializable attribute.

    Or you can explicitly save the defining properties of the distribution; for a Gaussian, you might want to save/load the natural parameters (Precision and MeanTimesPrecision) as these are the two public fields which define the distribution, but you could equally well save mean and precision or mean and variance. You can look in the source folder in your installation to understand distribution classes.

    John

    Friday, March 02, 2012 9:05 AM
    Owner
  • Can I save the model as a whole, so that I don't have to build/compile the model again?

    Thanks

    Friday, June 22, 2012 6:44 PM
  • Whoops, pls ignore. I think I can persist the generated dll. Thanks.
    • Edited by exx Monday, June 25, 2012 11:23 PM
    Monday, June 25, 2012 11:20 PM
  • The Infer.NET user guide now has a section on serialization.
    Thursday, October 04, 2012 10:15 AM