Detecting changes in causal relations - Revision history

Slawek at 20:16, 9 September 2019

2019-09-09T20:16:09Z

Slawek at 17:57, 14 October 2018

2018-10-14T17:57:19Z

Seppas at 17:06, 27 September 2017

2017-09-27T17:06:04Z

Seppas: Created page with "{{StudentProjectTemplate |Summary=Monitoring the operation of bus fleet by tracking the changes in causal network |Keywords=Causal network, change detection, stream mining |R..."

2017-09-27T17:04:42Z

Created page with "{{StudentProjectTemplate |Summary=Monitoring the operation of bus fleet by tracking the changes in causal network |Keywords=Causal network, change detection, stream mining |R..."

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{{StudentProjectTemplate
|Summary=Monitoring the operation of bus fleet by tracking the changes in causal network
|Keywords=Causal network, change detection, stream mining
|References=Structural causal discovery techniques: https://arxiv.org/pdf/1211.3295.pdf

Change detection in Granger causality: http://cowles.yale.edu/sites/default/files/files/pub/d20/d2059.pdf

|Prerequisites=Artificial Intelligence and Learning Systems courses
|Supervisor=Sepideh Pashami, Sławomir Nowaczyk,
|Level=Master
|Status=Open
}}
Causal relation between variable does not stay constant through time. Changes in the relations between variables can be evidence of structural change. For example, detecting changes during the operation of the buses in a city can identify different modes that these buses are operating on.

The challenge is that the results of causal network discovery methods based on observational data are not robust to noise. Therefore, simply comparing the causal networks producing by these methods will not work due to robustness issue. Further, time segment for comparison of the causal graphs is needed. Granger causality has been used previously for finding causal changes through time. However, detecting changes in structural causal discovery methods through time has not been investigated before.

The first step is to find the robust causal graph which can be achieved by bootstrapping techniques or Bayesian aggregation. The next step is to create causal networks through time segments and to measure the difference between the causal networks. The final step is to identify changes in the signal.

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 |Summary=Monitoring the operation of bus fleet by tracking the changes in causal network
 |Keywords=Causal network, change detection, stream mining
-|TimeFrame=Fall 2018
+|TimeFrame=Fall 2019
 |References=Structural causal discovery techniques: https://arxiv.org/pdf/1211.3295.pdf

@@ Line 1: / Line 1: @@
 {{StudentProjectTemplate
 |Summary=Monitoring the operation of bus fleet by tracking the changes in causal network
 |Keywords=Causal network, change detection, stream mining
 |References=Structural causal discovery techniques: https://arxiv.org/pdf/1211.3295.pdf
 Change detection in Granger causality: http://cowles.yale.edu/sites/default/files/files/pub/d20/d2059.pdf
 |Prerequisites=Artificial Intelligence and Learning Systems courses
 |Supervisor=Sepideh Pashami, Sławomir Nowaczyk,
 |Level=Master
 |Status=Open