Merge remote-tracking branch 'upstream/hotfixes' into release

pm4py/objects/ocel/util/names_stripping.py

@@ -21,8 +21,14 @@
 match = re.compile(r'[^0-9a-zA-Z]+')
 
 
-def apply(x: str, max_len: int = 100) -> str:
-    stru = match.sub('', x)
+def apply(X: str, max_len: int = 100) -> str:
+    X = X.split(" ")
+    i = 0
+    while i < len(X):
+        X[i] = X[i].capitalize()
+        i = i + 1
+    X = "".join(X)
+    stru = match.sub('', X).strip()
     if len(stru) > max_len:
         stru = stru[:100]
     return stru

pm4py/ocel.py

@@ -68,6 +68,10 @@ def ocel_flattening(ocel: OCEL, object_type: str) -> pd.DataFrame:
     Flattens the object-centric event log to a traditional event log with the choice of an object type.
     In the flattened log, the objects of a given object type are the cases, and each case
     contains the set of events related to the object.
+    The flattened log follows the XES notations for case identifier, activity, and timestamp. In particular:
+    - "case:concept:name" is the column used for the case ID.
+    - "concept:name" is the column used for the activity.
+    - "time:timestamp" is the column used for the timestamp.
 
     :param ocel: object-centric event log
     :param object_type: object type