Tuesday, January 20, 2015

Process Mining: Data Science in Action by Coursera


This is  my short feedback for Coursera Process Mining course (by Wil van der Aalst from Eindhoven University of Technology)
Name of the course sounds very interesting, but the main task is quite simple.
It's about building behaviour model based on events log(you need to consider overfitting and underfitting). That's mean: your model should explain majority of cases and be general enough for explaining new cases.
Main tools, recommended in the course, are Disco and ProM. They allow building models according to different notations(e.g. BPMN) and making visualisations.
Two main aspects of process mining are organisational and social aspects:
Organisational aspects tasks:
  • discover typical workflow actions(for customers, employees, etc)
  • analyse of time spent for every tasks
  • "bottlenecks" mining
Social aspects tasks:
  • discover users groups and users relations within process
  • analysis of time spending for every worker, customer, etc
In addition, in both aspects you can recommend next steps or forecast time of completion future tasks.

Lectors slideshare: http://www.slideshare.net/wvdaalst
Next session: April-May 2015




Results examples,  Disco:




 Results examples, ProM:



Disadvantages(from my point of view):
  • course is too academic;
  • to much time involved for building process in various notations;
  • it is not too difficult build this algorithms in your own;
  • you can't analysis big logs (all data should fit into memory).

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