- author = "Jorge Couchet and Daniel Manrique and Juan Rios and Alfonso Rodriguez-Paton",
- title = "Crossover and mutation operators for grammar-guided genetic programming",
- journal = "Soft Computing",
- year = "2007",
- volume = "11",
- number = "10",
- pages = "943--955",
- month = aug,
- keywords = "genetic algorithms, genetic programming, Grammar-guided genetic programming, Crossover, Mutation, Breast cancer prognosis",
-
DOI = "
doi:10.1007/s00500-006-0144-9",
- abstract = "This paper proposes a new grammar-guided genetic programming (GGGP) system by introducing two original genetic operators: crossover and mutation, which most influence the evolution process. The first, the so-called grammar-based crossover operator, strikes a good balance between search space exploration and exploitation capabilities and, therefore, enhances GGGP system performance. And the second is a grammar-based mutation operator, based on the crossover, which has been designed to generate individuals that match the syntactical constraints of the context-free grammar that defines the programs to be handled. The use of these operators together in the same GGGP system assures a higher convergence speed and less likelihood of getting trapped in local optima than other related approaches. These features are shown throughout the comparison of the results achieved by the proposed system with other important crossover and mutation methods in two experiments: a laboratory problem and the real-world task of breast cancer prognosis.",
-
notes = "p945 'ambiguous' context free grammars. p950 PCT2 SSGA
75percent crossover 5percent mutation. p952 315 breast
lesions X-ray images characteristics by human: size
(apparent diameter mm), morphology (5 values), margins
(5 values), density (4 values). Biopsy as ground truth,
Comparison with two human experts. Evolved rule: if
margins=spiculated and morphology=irregular then
prognosis=malignant.
p953 benefit of ambiguous grammar (not given).",
- bibdate = "2008-03-11",
- bibsource = "DBLP, http://dblp.uni-trier.de/db/journals/soco/soco11.html#CouchetMRR07",
