Pareto Front

class SAES.multiobjective.pareto_front.Front(fronts_path: str, references_path: str, metric: str, dimensions: int)

Bases: ABC

Abstract class to generate Pareto fronts for different algorithms and instances.

Attributes:

fronts_path (str):

The path to the folder containing the Pareto fronts.

references_path (str):

The path to the folder containing the reference fronts.

metric (str):

The metric used to generate the fronts.

algorithms (list):

A list of algorithms present in the fronts path.

instances (list):

A list of instances present in the fronts path.

logger (Logger):

A logger object to record and display log messages.

Methods:

__init__(fronts_path: str, references_path: str, metric: str):

Initializes the Front object with the given fronts path, references path, and metric.

save(instance: str, output_path: str, median: bool=True):

Generates a Pareto front for the specified instance and saves it to the specified output path.

show(instance: str, median: bool=True):

Generates a Pareto front for the specified instance and displays it.

save(instance: str, output_path: str, file_name: str = None, median: bool = True) → None

Generates a Pareto front for the specified instance and saves it to the specified output path.

Args:

instance (str):

The name of the instance for which the Pareto front is to be generated.

output_path (str):

The path where the Pareto front image will be saved.

median (bool):

A boolean indicating whether to generate the median front or the best front. Default is True.

Returns:

None

Example:

>>> from SAES.multiobjective.pareto_front import Front2D
>>>
>>> fronts_path = "path/to/fronts"
>>> references_path = "path/to/references"
>>> metric = "HV"
>>> front = Front2D(fronts_path, references_path, metric)
>>> front.save("ZDT1", "path/to/output")

show(instance: str, median: bool = True) → None

Generates a Pareto front for the specified instance and displays it.

Args:

instance (str):

The name of the instance for which the Pareto front is to be generated.

median (bool):

A boolean indicating whether to generate the median front or the best front. Default is True.

Returns:

None

Example:

>>> from SAES.multiobjective.pareto_front import Front2D
>>>
>>> fronts_path = "path/to/fronts"
>>> references_path = "path/to/references"
>>> metric = "HV"
>>> front = Front2D(fronts_path, references_path, metric)
>>> front.show("ZDT1")

class SAES.multiobjective.pareto_front.Front2D(fronts_path: str, references_path: str, metric: str)

Bases: Front

Class to generate 2D Pareto fronts for different algorithms and instances.

class SAES.multiobjective.pareto_front.Front3D(fronts_path: str, references_path: str, metric: str)

Bases: Front

Class to generate 3D Pareto fronts for different algorithms and instances.

class SAES.multiobjective.pareto_front.FrontND(fronts_path: str, references_path: str, metric: str, dimensions: int)

Bases: Front

Class to generate ND Pareto fronts for different algorithms and instances.