Editing Chromosome (evolutionary algorithm) (section)

=== Chromosomes for tree representations ===
Tree representations in a chromosome are used by [[genetic programming]], an EA type for generating [[Computer program|computer programs]] or [[Electronic circuit|circuits]].<ref name=":5" /> The trees correspond to the [[Parse tree|syntax trees]] generated by a [[compiler]] as internal representation when translating a computer program. The adjacent figure shows the syntax tree of a mathematical expression as an example. Mutation operators can rearrange, change or delete subtrees depending on the represented syntax structure. Recombination is performed by exchanging suitable subtrees.<ref>{{Cite book |last1=Eiben |first1=A.E. |url=https://link.springer.com/10.1007/978-3-662-44874-8 |title=Introduction to Evolutionary Computing |last2=Smith |first2=J.E. |date=2015 |publisher=Springer |isbn=978-3-662-44873-1 |series=Natural Computing Series |location=Berlin, Heidelberg |pages=75–78 |language=en |chapter=Tree Representation |doi=10.1007/978-3-662-44874-8|s2cid=20912932 }}</ref>