Demo Process Discovery - pm4knime/pm4knime-document GitHub Wiki

In this part, the demand to discover a process model is shown at first. Next, the concrete workflow is provided as one sample to solve a similar problem. https://github.com/pm4knime/pm4knime-document/blob/master/images/demo-simple-discover.PNG

One example workflow with PM4KNIME is shown below:

https://github.com/pm4knime/pm4knime-document/blob/master/images/demo-simple-discover-wf.PNG

The following steps will guide you to accomplish the task and discover a Petri net from an event log.

  1. Download the dataset. Extract the event log running-example.xes from the downloaded dataset.
  2. Create a workflow in KNIME called "PM4KNIME-Release-01-WF-Discovery".
  3. Import the event log running-example.xes
    • Drag the node Event Log Reader from the category ProcessMining->IO or by searching the related name, like "Event" in Node Repository.

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* Configure the **Event Log Reader** with the path to file running-example.xes and click OK to close the dialog.

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* Execute the node by right-clicking the node and choosing **Execute** option.
* Inspect the event log by choosing the Output port, which is always located as the last option by right-clicking.

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Click the graph to show different perspectives on the event log. image

  1. Drag the node Inductive Miner into the KNIME and connect it with the output port of the event log.
    • Configure the settings with the following values.

Select Inductive Miner Type: Inductive Miner - Infrequent Write the Noise Threshold: 0.2 Select Event Classifier: Event Name image

  • Click OK to close the configuration dialog.
  • Execute the nodes.
  • Check the generated Petri net in output port. An accepting Petri net is given as the result. image
  1. Export the generate Petri net with node Petrinet Writer.

    • Connect the input port of Petrinet Writer with the output port of node Inductive Miner.

    • Choose the file path, like

      \Generated\running-im-pn.pnml

    • Execute the node to save the Petri net.

Following those steps, hopefully, you get more familiar with task of process discovery. More miners are found in the category "Process Mining->Discovery". The node and option settings descriptions are listed on the right site if you click the node.