Source code for

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from pm4py.objects.ocel.obj import OCEL
from typing import Optional, Dict, Any

[docs]def apply(ocel: OCEL, parameters: Optional[Dict[Any, Any]] = None): """ One-hot encode the activities of an OCEL, assigning to each event its own activity as feature Parameters ---------------- ocel OCEL parameters Parameters of the algorithm Returns ---------------- data Extracted feature values feature_names Feature names """ if parameters is None: parameters = {} ordered_events = list([ocel.event_id_column]) activities = list([ocel.event_activity].unique()) data = [] feature_names = ["@@event_act_"+act for act in activities] events_activities =[[ocel.event_id_column, ocel.event_activity]].to_dict("records") events_activities = {x[ocel.event_id_column]: x[ocel.event_activity] for x in events_activities} for ev in ordered_events: data.append([0] * len(activities)) data[-1][activities.index(events_activities[ev])] = 1 return data, feature_names