Pm4py

Fixed

Removed

Deprecated

Changed

* 4964d6ea
* minor refactoring (rename) in attribute statistics querying; get_attributes()
--> get_event_attributes()
* 1148f6c0
* use revised implementation of IM and IMf everywhere, deprecate old implementations

Added

* 6750bf3a
* add support for start time and end-time in timstamp conversion
* e24f5b70
* computation of event-level overlap
* 8cec5f9e
* add several case/event level statistic functions at the simplified interface level

Other

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Fixed

* daf74e83
* update imports in feature extraction
* 74be3e3c
* minor bug fix in alpha plus (place that was created was not always added to the resulting Petri net)

Removed

Deprecated

Changed

* d97b1790
* drop deepcopy in event log sorting (enhances performance)
* 1d4e625b
* revised IMf implementation (more close to ProM / PhD thesis Sander Leemans)
* 20aabd95
* calculation of minimum self distance now adheres to the standard invocation structure

Added

* 598c6ecb
* simplified interface now stores properties (using attr attribute) to dataframes
* 1f7a3fa8
* add computation of rework statistic (cases containing the same activity more than once)
* 32c7d330
* add computation of cycle time (active time of process divided by the number of instances of the process)
* 8187f0e9
* add distribution plots over different time-frames (matplotlib)
* 269d826c
* add batch detection based on Martin, N., Swennen, M., Depaire, B., Jans, M., Caris, A., & Vanhoof, K. (2015,
December). Batch Processing: Definition and Event Log Identification. In SIMPDA (pp. 137-140).
* d5326d46
* compute case overlap of a case with all other cases

Other

* 92a70586
* performance optimization for calculation of performance spectrum
* b0fc57c4
* performance optimization for Pandas datetime conversion non-ISO8601 (regular formats)

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Fixed

* c11bab8f
* bug fix in eventually-follows filter
* d3fd1bc1
* bug fix in activity frequency constraints of the log skeleton conformance checking

Removed

Deprecated

Changed

* d96d9d69
* improved performance of the df-based performance spectrum code
* 499d8a1c
* improved performance of log conversions when (for internal use) deep copy is not required

Added

* 4d679934
* allow the possibility to filter on a trace attribute that has a type date (e.g., does the planned start date of
the case fall in a given time window?)
* b7ef36e8
* add properties object to trace attributes (used for internal storage of statistics, will not be exported to disk)
* d7029365
* added some basic ML utilities for event logs, e.g., getting all prefixes of traces, get a train/test split
* 1ec5802e
* new subtrace selection mechanism that gets all events inbetween two given activity labels (uses first match on
both 1st and 2nd label)
* 9b65bbd9
* allow specification of business hours in sojourn time computation of the DFG
* 4d529d6e
* generic support for feature extraction

Other

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Fixed

* 908e06d7
* fix error in loop detection of inductive miner
* b7b63e0b
* add internal log conversion in the flexible heuristics miner
* e9d61bdb
* fix minor bug in bpmn model importing
* 52cc0c7a
* fix minor bug in xes exporting (type of concept:name was not checked)

Removed

Deprecated

* 9c1a9610
* various old utility functions are now deprecated

Changed

* 424c9ad9
* avoid warnings when visualizing long place names in debug visualization mode

Added

* c2a9633e, 52e340b1
* add simple visualization of performance spectrum.
* b6ae4b25
* add simple dotted chart visualization to the simplified interface.
* 6e3a0bac
* add properties attribute to event logs and event streams for storage of custom meta-data that is not exported to
xes.
* fb142359
* add version of dfg discovery that adds case-level attributes to nodes and edges
* d902609d
* add basic visualization of events per time and cas distribution graphs

Other

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Fixed

Removed

Deprecated

Changed

* 766fafa7
* minor refactoring and more generic invocation style for eventually follows-based filtering

Added

* 353c7d6f
* Heuristics miner is now able to filter on edges connecting to/from start/end activity
* d6412339
* Parallel alignment computation can be directly invoked
using pm4py.conformance_diagnostics_alignments(..., multi_processing=True)
* de84e5f4
* add pm4py.discover_bpmn_inductive(log)

Other

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Fixed

* 9854f62d
* minor bug fix in etree xes exporter avoiding faulty None values
* bfe8fb32
* support non-standard attribute symbols in line-by-line event log exporter

Removed

Deprecated

Changed

* 3631fe58
* default xes importer is set back to iterparse
* a7ff695a
* large-scale restructuring of the underlying pm4py architecture
* 201879ad
* changed the default maximum number of edges to be visualized in the DFG visualization to 100000 (was: 75)

Added

* 66283964
* sojourn-time-based coloring for dfgs
* 6639d3f3
* organizational mining, e.g., pm4py.discover_handover_of_work_network(log)
* 9c9ca14a
* allow multiprocessing in alignment computation
* 279fd31f
* add prefix tree vizualiation
* 748c768d
* add 'old' pm4py visualization of the process tree as an alternative visualziation
* 408b37a9
* add filter to check multiple ocurrences of certain attribute values in a case.

Other

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