# pm4py.algo.analysis.extended_marking_equation package

## pm4py.algo.analysis.extended_marking_equation.algorithm module

This file is part of PM4Py (More Info: https://pm4py.fit.fraunhofer.de).

PM4Py is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

PM4Py is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with PM4Py. If not, see <https://www.gnu.org/licenses/>.

class pm4py.algo.analysis.extended_marking_equation.algorithm.Variants(value)[source]

Bases: enum.Enum

An enumeration.

CLASSIC = <module 'pm4py.algo.analysis.extended_marking_equation.variants.classic' from 'C:\\Users\\berti\\pm4py-core\\pm4py\\algo\\analysis\\extended_marking_equation\\variants\\classic.py'>
pm4py.algo.analysis.extended_marking_equation.algorithm.build(trace: pm4py.objects.log.obj.Trace, sync_net: pm4py.objects.petri_net.obj.PetriNet, sync_im: pm4py.objects.petri_net.obj.Marking, sync_fm: pm4py.objects.petri_net.obj.Marking, variant=Variants.CLASSIC, parameters: Optional[Dict[Any, Any]] = None) Any[source]

Builds the extended marking equation out of a trace and a synchronous product net

Parameters
• trace – Trace

• sync_net – Synchronous product net

• sync_im – Initial marking (of sync net)

• sync_fm – Final marking (of sync net)

• variant – Variant of the algorithm to use, possible values: - Variants.CLASSIC

• parameters – Parameters of the algorithm, including: - Parameters.CASE_ID_KEY => attribute to use as case identifier - Parameters.ACTIVITY_KEY => attribute to use as activity - Parameters.COSTS => (if provided) the cost function (otherwise the default cost function is applied) - Parameters.SPLIT_IDX => (if provided) the split points as indices of elements of the trace

(e.g. for [“A”, “B”, “C”, “D”, “E”], specifying [1,3] as split points means splitting at “B” and “D”). If not provided, some split points at uniform distances are found.

• Parameters.MAX_K_VALUE => the maximum number of split points that is allowed (trim the specified indexes

if necessary).

• Parameters.INCIDENCE_MATRIX => (if provided) the incidence matrix associated to the sync product net

• Parameters.A => (if provided) the A numpy matrix of the incidence matrix

• Parameters.CONSUMPTION_MATRIX => (if provided) the consumption matrix associated to the sync product net

• Parameters.C => (if provided) the C numpy matrix of the consumption matrix

• Parameters.FULL_BOOTSTRAP_REQUIRED => The preset/postset of places/transitions need to be inserted

pm4py.algo.analysis.extended_marking_equation.algorithm.get_h_value(solver: Any, variant=Variants.CLASSIC, parameters: Optional[Dict[Any, Any]] = None) int[source]

Gets the heuristics value from the extended marking equation

Parameters
• solver – Extended marking equation solver (class in this file)

• variant – Variant of the algorithm to use, possible values: - Variants.CLASSIC

• parameters – Possible parameters of the algorithm

## Module contents

This file is part of PM4Py (More Info: https://pm4py.fit.fraunhofer.de).

PM4Py is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

PM4Py is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with PM4Py. If not, see <https://www.gnu.org/licenses/>.