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#2937 closed feature request (obsolete)

Reported by:	gkronber	Owned by:	gkronber
Priority:	medium	Milestone:	HeuristicLab 3.3.16
Component:	Problems.DataAnalysis.Symbolic	Version:	branch
Keywords:		Cc:

Analytical quotient is a 'replacement' for protected division. aq(a,b) = a/sqrt(1+b²)

Also see attached papers.

p272-nicolau.pdf (581.9 KB) - added by gkronber 6 years ago.: On the Effect of Function Set to the Generalisation of Symbolic Regression Models
06186815.pdf (741.4 KB) - added by gkronber 6 years ago.: The Use of an Analytic Quotient Operator in Genetic Programming
aq_tower_test.png (55.0 KB) - added by gkronber 6 years ago.: AQ vs. DIV - Tower (Test R²)
aq_spatial_train.png (51.1 KB) - added by gkronber 6 years ago.: AQ vs. DIV - Spatial (Train R²)
aq_spatial_test.png (52.7 KB) - added by gkronber 6 years ago.: AQ vs. DIV - Spatial (Test R²)

Download all attachments as: .zip

On the Effect of Function Set to the Generalisation of Symbolic Regression Models

The Use of an Analytic Quotient Operator in Genetic Programming

AQ vs. DIV - Tower (Test R²)

AQ vs. DIV - Spatial (Train R²)

AQ vs. DIV - Spatial (Test R²)

r16082: created branch for ticket

r16083: added symbol for AQ and support for AQ in interpreter and AutoDiff converter

We decided to implement AQ(x) together with abs(x) in #2915.

r16236: merged r16083 from AnalyticalQuotient branch to AbsoluteValue branch.

Development will continue in #2915

r16353: added partial support for rectifier, leaky-rectifier and soft-plus functions

r16354: deleted branch (relevant changes have been merged to #2915)

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