Nice paper from Fluxicon about basic problems in process mining workflow, how to discover and fix them.
Friday, March 13, 2015
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
- discover users groups and users relations within process
- analysis of time spending for every worker, customer, etc
Lectors slideshare: http://www.slideshare.net/wvdaalst
Next session: April-May 2015
Tuesday, January 13, 2015
Visualizing Data using t-SNE
If you need solution for visualization of high-dimensional datasets- t-SNE is a great choice.
Video:
Read more about t-SNE
Video:
Read more about t-SNE
Friday, January 9, 2015
Dive into Deep Learning
If you are interested in deep learning - you can try UFLDL (Unsupervised Feature Learning and Deep Learning) tutorial from Stanford University.
If this topic is really new for you - it is better to start from https://www.coursera.org/course/ml. After this session course will change format into self-study.
If this topic is really new for you - it is better to start from https://www.coursera.org/course/ml. After this session course will change format into self-study.
Friday, December 26, 2014
Visualizing Walking Using Smartphone Accelerometers
Really cool visualization based on UCI Machine Learning Repository datasets:
http://kyrandale.com/viz/d3-smartphone-walking.html
http://kyrandale.com/viz/d3-smartphone-walking.html
Friday, December 12, 2014
Algorithm choosing
We have a lot of algorithms.
Great schema, which working not only for scikit, provide a simple decision process:
Image source
Great schema, which working not only for scikit, provide a simple decision process:
Image source
Friday, November 28, 2014
Helping Santa's Helpers Kaggle Competition
You can help elves in Santa Workshop pack toys in most efficient way and win $20,000.
Only 40 days left!
More about compettition: http://www.kaggle.com/c/helping-santas-helpers
Only 40 days left!
More about compettition: http://www.kaggle.com/c/helping-santas-helpers
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