PM4Py 2.2.19.1

Added

• a193603
  • Event-Object Feature Extraction on OCEL
• 8da0597
  • Prefixes and Suffixes filters for Event Logs + Exposition in Simplified Interface

Changed

Deprecated

Fixed

• cbf848e
  • Bug fix BPMN importer
• ff0dfc4
  • Closed security issue within dependencies

pm4py 2.2.19

Added

• eea1839
  • possibility to return the Pydotplus graph inner object in the Heuristics Net visualization.
• 52ddbf7
  • support for different attribute keys for the source / target events in the DFG discovery and paths filtering on Pandas dataframes.
• 29bd86a
  • possibility to specify different shifts for the different working days of the week, inside the business hour module.
• f1e124a
  • possibility to move an attribute at the event level in an OCEL to the object type level.
• 0da4c3f
  • custom semantics for Petri net to reachability graph conversion.
• c7c7ed5
  • add "week of the year" option in get_events_distribution method
• 5b5c048
  • add prefix/suffix filter for pandas data frames
• 877701f
  • add additional features (useful for instance-spanning constraints) in trace-based feature extraction
• 7359807
  • add rebase functionality to pm4py (changing the default activity/case identifier)
• 84742ce
  • add support for interleaved operator
• d7e232a
  • added various additional interaction feature extraction methods for OCEL
• 9caf559
  • add new thirdparty dependency structure in third_party folder

Changed

• 74ce9b9
  • setting all the arcs of the Petri net visible when there is at least an arc with weight != 1, for coherence reasons.
• 2183273
  • inferring the activity frequency from the DFG in a more generic way with regards to the type of the inputs.
• 87fe5af
  • changed tau printing in process tree to string representation, from tau to tau, for coherency with the parse_process_tree operator.
• effce8d
  • changed BPMN namespace in BPMN exporting to ensure compatibility with BPMN modelers.
• 2200a0f
  • add pn to nx converter that returns two dicts for node mappings (pn->nx and nx->pn)
• f9ad1a4
  • pm4py.format_dataframe(df) no longer replaces columns, rather, it copies the data into fresh columns

Deprecated

Fixed

• 0ad488b
  • Fixed problem in PTAndLogGenerator: silent transitions were added in some context also when the parameter "silent" was provided to 0.

Removed

• d07a908
  • removed pm4py.general_checks_classical_event_log()
• 034abb0
  • remove dependency on ciso8601

Other

PM4Py 2.2.18

Added

• c15c889
  • add utility function to convert SNA results to NetworkX
• 8b300db
  • add several new statistics for OCEL logs
• 8da0f41
  • add frequency-based visualization (using alignments) for process trees
• 54261cb
  • add progress bar to token-based replay
• 225dcad
  • add OCEL schema validators
• da6a478
  • add reduction rules for R/I nets
• fefcd45
  • additional support for BPMN functionalities: exceptions and markings
• 417274f
  • add support for feature extraction from OCEL logs
• 5f5ff57
  • add filter that checks relative occurrence of a specified attribute

Changed

• b82dd92
  • revised implementation of the business hours module, now supports input of work calendars (workalendar package)
• 434e66a
  • allow arbitrary arc weights visualized (reported at #303)

Deprecated

Fixed

• 76563e4
  • fix bug in process tree alignment that generates NoneTypeError when multiple leaves have the same label
• 3b6800d
  • minor bugfix in process tree playout (reported at: #305)

Removed

Other

PM4Py 2.2.17.1

Fixed

• 2eb36ce
  • Bug fix in OCEL importing (timestamp parsing)
• 512c071
  • Resolved security issue in data Petri nets' PNML parsing

PM4Py 2.2.17

Added

• 9b79512
  • add converter from data frame to activity/case table
• f28fc49
  • add possibility to add the case identifier in the feature table (see: #292)
• 12b6ec2
  • add interleaving DFG visualizer for visualizing inter-process dependencies
• af9c326
  • add first/last occurrence index per activity in the feature table
• 9231a5d
  • add support for conversion of interleaving data structure
• 06f5428
  • add support to merge two separate logs using an n:m case-relation table
• 146f49c
  • add the possibility to stream OCEL events and define object-specific listeners
• 573c26c
  • add feature extraction functionality that records the position of activities
• ff62d66
  • add case and event sampling to the simplified interface
• d8f71bc
  • add activity-position summary in the simplified interface
• d4011ff
  • add link analysis code for OCEL
• cf72dfe
  • add support for BPMN Gateway direction properties (community contribution by @gregvanhoudt)
• 1c675fb
  • fix hardcoded parameter in replay fitness computation (community contribution by @phi1-h)

Changed

• 79920a1
  • improved string representation of Petri net objects
• 9358fdf
  • minor refactoring for interval detection in event log
• 413cee0
  • improvement enhancement for token-based reply (community contribution by @phi1-h)

Deprecated

Fixed

• 5dccbe6
  • fix faulty conversion of process trees to binary equivalent.
• 976cc60
  • fix for: #293
• 1e4f602
  • fix for: #295
• be629d9
  • fix for visualizing multiple tokens in the initial marking in the same place
• a06cc1c
  • fix for the correct use of the triangular distribution on generating process trees
• 51181d6
  • fix support for generating multiple process trees in one go
• 9a0e2be
  • general revision of the process tree generator code

Removed

Other

PM4Py 2.2.16

Added

• 32af0c8
  • time-stamp based interleaving mining for OCEL logs
• 10dffb5
  • support probability visualization in transition system visualizer
• 51c069f
  • add discovery of object-centric directly follows multigraphs
• fa3031a
  • add several filters for OCEL.
• d4747f7
  • implementation of OCEL-based process discovery according to Reference paper: van der Aalst, Wil MP, and Alessandro
    Berti. "Discovering object-centric Petri nets." Fundamenta informaticae 175.1-4 (2020): 1-40.
• 9fbd1c4
  • add the support for generic network creation based on a given IN/OUT column in which events are connected if the
    columns match.
• 2b867f0
  • add projection utility to fetch lists of event attributes

Changed

• 43a076c
  • add artificial timestamps to artificial start and end events
• d65f807
  • case attributes are replicated in events of an event stream (for xes input)
• 9075cbf
  • add trace attributes to the interval tree

Deprecated

Fixed

Removed

Other

PM4Py 2.2.15

Fixed

• 6e26b00
  • fixed pandas performance DFG discovery
• 9215318
  • fixed parameters usage in simulation packages
• ca6750d
  • fixed hardcoded parameters in dataframe_utils

Removed

• 53af01f
  • removed strong dependencies on intervaltree and stringdist

Deprecated

Changed

• dcebaf8
  • moving networkx dependency
• f19762a
  • update IMD cut detection to use IM_CLEAN cuts (correct implementation of IM CUTS)
• d5d0b49
  • change the visualization of initial and final markings
• fcc4eeb
  • variant separator (between activities of the same variant) is now a pm4py constant, for increased compatibility with other tools, e.g., celonis.

Added

• 32c396b
  • add sanity checks on event logs objects in simplified interface
• 5b85d5d
  • add utility to parse a collection of traces in string form to an event log
• a87a39c
  • add support for importing XES 2.0
• b43d425
  • add artificial start and end events to event logs
• d22dd49
  • add initial support for OCEL 1.0
• 829f091 & 56fca73
  • support for business hours in the pandas dfg calculation
  • support for business hours in the temporal profiles for pandas dataframes
  • support for business hours in pandas df case duration
  • support for business hours in filtering for case performance (pandas)
  • support for calculating of sojourn time with different aggregation metrics
• 841e3e5
  • add etc conformance for dfg models
• 04caa3d
  • add dfg filtering that keeps the dfg connected

Other

PM4Py 2.2.14

Fixed

• 706d42c
  • bug fix paths filter for Pandas
• c5ecaa4
  • bug fix numeric attribute filter XES (custom case attribute glue)

Deprecated

Changed

Added

• 8ba6703
  • added random variables that are able to check gamma and log normal distributions
• 1d22d99
  • added dfg -> petri net translation that has unique labels (routing is performed by invisible transitions)
• 004ec93
  • add support for log-level fitness in the alignment output
• 56efe27
  • add fitness value for the dfg-based alignments
• d9da1ab
  • add raw performance values for the elements of the performance-based dfg
• 0eeda19
  • when visualizing a dfg without log attached to it, i.e., incoming edges are used to count
• 03ee6b8
  • allow counting of occurrences of activities/open cases/resource activities in a given time range
• ae5a397
  • add various new filtering functionalities

Other

• ac00be2
  • added the specification of Python 3.9.x among the supported versions.
  • not suggesting anymore Python 3.6.x

PM4Py 2.2.13.1

Fixed

• 816fb4a
  • Fixed a bug in the Pandas case size filter (the constraints were not applied correctly).
• 40f142c
  • Fixed a bug in the format_dataframe function (columns were duplicated if already existing with the same name).
• 00d1a7d
  • Reverted stream converter to old variant (in a slightly slower but safer way).

Removed

Deprecated

Changed

• 991a09d
  • Introduce a time limit in the DFG playout.
• ae5d2a0
  • Return the state of the process tree along with the alignment for the process tree alignments.
• 8b77384
  • Refactoring of the calculation of the fitness for Petri net alignments (scattered code).

Added

Other

• d58d34f
  • Upgraded Dockerfile to Python 3.9
• 5011417
  • Resolved issue with the upcoming Python 3.10 release
• 8931490
  • Security issue in requirements

PM4Py 2.2.13

Fixed

Removed

Deprecated

Changed

• 5723df7
  • xes exporter now reports on xes features and xmlns
• 3b63254
  • graphviz based visualizations now expose background color as a parameter

Added

• 0592157
  • new dfg playout including performance specification
• 85739ba
  • allow pandas df to be used as an iterable for streaming simulation
• 2fa9993
  • path filter that filters the cases of an event log where there is at least one occurrence of the provided path
    occurring in a given time range.
• a7ee73a
  • added filter based on rework detection
• c03b618
  • add petri net, reset/inhibitor net and data petri net semantics

Other