lir.lrsystems.lrsystems module

class lir.lrsystems.lrsystems.LRSystem[source]

Bases: Transformer, ABC

General representation of an LR system.

abstractmethod apply(instances: InstanceData) → LLRData[source]

Use the LR system to calculate the LLR data from the instances.

Applies the LR system on a set of instances, optionally with corresponding labels, and returns a representation of the calculated LLR data through the LLRData tuple.

Parameters:: instances (InstanceData) – Input instances to be processed by this method.
Returns:: Likelihood-ratio data produced by applying the LR system.
Return type:: LLRData

fit(instances: InstanceData) → Self[source]

Fit the LR system on a set of features and corresponding labels.

The number of labels must be equal to the number of instances.

Parameters:: instances (InstanceData) – Input instances to be processed by this method.
Returns:: This LR system instance after optional fitting.
Return type:: Self