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To enable the probabilistic processing you have to include the probabilistic feature and use the probabilistic metadata (#METADATA Probabilistic) in your Odysseus script.

Estimating probabilistic values


Expectation Maximization

The EM operator allows the fit a Gaussian mixture model (GMM) with predefined number of mixtures to the values of a data stream.

Kalman Filter

The Kalman Filter operator can be used if the variance of of the values in the data stream is known from some datasheet.

Filtering probabilistic values

For filtering probabilistic filtering probabilistic values you can use the same syntax that you already use for deterministic values. However, the result of the operators differ. In case of discrete probabilistic values the Select operator returns a tuple with a lower tuple existence probability.