`classifier_protocol`

Protocol for machine learning classifiers.

| Availability: | logtalk_load(classifier_protocols(loader))

| Author: Paulo Moura | Version: 1:0:0 | Date: 2026-02-19

| Compilation flags: | static

| Dependencies: | (none)

| Remarks: | (none)

| Inherited public predicates: | (none)

.. contents:: :local: :backlinks: top

Public predicates

.. index:: learn/2 .. _classifier_protocol/0::learn/2:

learn/2 ^^^^^^^^^^^

Learns a classifier from the given dataset object.

| Compilation flags: | static

| Template: | learn(Dataset,Classifier) | Mode and number of proofs: | learn(+object_identifier,-compound) - one

.. index:: predict/3 .. _classifier_protocol/0::predict/3:

predict/3 ^^^^^^^^^^^^^

Predicts the class label for a new instance using the learned classifier. The instance is a list of Attribute-Value pairs.

| Compilation flags: | static

| Template: | predict(Classifier,Instance,Class) | Mode and number of proofs: | predict(+compound,+list,-atom) - one

.. index:: classifier_to_clauses/4 .. _classifier_protocol/0::classifier_to_clauses/4:

classifier_to_clauses/4 ^^^^^^^^^^^^^^^^^^^^^^^^^^^

Converts a classifier into a list of predicate clauses. Functor is the functor for the generated predicate clauses.

| Compilation flags: | static

| Template: | classifier_to_clauses(Dataset,Classifier,Functor,Clauses) | Mode and number of proofs: | classifier_to_clauses(+object_identifier,+compound,+callable,-list(clause)) - one

.. index:: classifier_to_file/4 .. _classifier_protocol/0::classifier_to_file/4:

classifier_to_file/4 ^^^^^^^^^^^^^^^^^^^^^^^^

Exports a classifier to a file. Functor is the functor for the generated predicate clauses.

| Compilation flags: | static

| Template: | classifier_to_file(Dataset,Classifier,Functor,File) | Mode and number of proofs: | classifier_to_file(+object_identifier,+compound,+callable,+atom) - one

.. index:: print_classifier/1 .. _classifier_protocol/0::print_classifier/1:

print_classifier/1 ^^^^^^^^^^^^^^^^^^^^^^

Prints a classifier to the current output stream in a human-readable format.

| Compilation flags: | static

| Template: | print_classifier(Classifier) | Mode and number of proofs: | print_classifier(+compound) - one

Protected predicates

(none)

Private predicates

(none)

Operators

(none)

.. seealso::

:ref:`c45 <c45/0>`, :ref:`isolation_forest <isolation_forest/0>`, :ref:`knn <knn/0>`, :ref:`naive_bayes <naive_bayes/0>`, :ref:`nearest_centroid <nearest_centroid/0>`, :ref:`random_forest <random_forest/0>`