Multiple sources of data in a bayesian system

A system, comprising:

• an interface configured to:
• receive a source set of data, wherein the source set of data comprises data representing a plurality of transactions stored in a source transaction database;
• receive an estimation model for modeling data for a transaction;
• and
• receive a mapping between the source set of data and a model parameter database, wherein the model parameter database comprises a plurality of model parameters for the estimation model;
• a processor configured to generate an updated set of model parameters, including by:
• determining which model parameters in the model parameter database are mapped to by the mapping;
• and
• updating those model parameters in the model parameter database which are mapped to by the mapping, without updating those model parameters in the model parameter database which are not mapped to by the mapping;
• and
• the model parameter database, which is configured to store the plurality of model parameters.

A computer program product, the computer program product being embodied in a non-transitory computer readable storage medium and comprising computer instructions for:

• receiving a source set of data, wherein the source set of data comprises data representing a plurality of transactions stored in a source transaction database;
• receiving an estimation model for modeling data for a transaction;
• receiving a mapping between the source set of data and a model parameter database, wherein the model parameter database comprises a plurality of model parameters for the estimation model;
• generating an updated set of model parameters, including by:
• determining which model parameters in the model parameter database are mapped to by the mapping;
• and
• updating those model parameters in the model parameter database which are mapped to by the mapping, without updating those model parameters in the model parameter database which are not mapped to by the mapping;
• and
• storing the updated set of model parameters in the model parameter database.