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4月22日学术报告(加拿大纽芬兰纪念大学 胡婷:演化计算中的鲁棒性和可进化性)
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类别:网络整理
发布人:admin
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发布时间:2015-09-02 14:24
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报告题目: 演化计算中的鲁棒性和可进化性
报告日期及时间:2015年4月22号下午3:00
报告地点: B403
报告人:胡婷
报告人国籍: 中国
报告人单位:加拿大纽芬兰纪念大学(Memorial University,St. John’s)计算机系
报告人简介:
胡婷,加拿大纽芬兰纪念大学助理教授,2010年毕业于加拿大纽芬兰纪念大学,获博士学位,2010年至2015年在美国达特茅斯学院从事博士后研究。在国际重要学术会议期刊发表论文40余篇,主要研究方向为复杂网络、复杂系统,演化计算、智能计算及机器学习。
报告摘要:
Robustness, the maintenance of a phenotypic character in the presence of genotypic changes, is the result of a redundant
mapping between genotype and phenotype, where many mutational variants of a genotype produce an identical phenotype.
Such robustness, at first glance, seems to hinder the capability of innovating, i.e. evolvability. However, empirical evidences
have been reported on living organisms that robustness can facilitate evolvability since it allows genetic variants to expand in
neutral spaces that provide a staging ground for future adaptive innovations. Redundant genotype to phenotype mapping is
common in Evolutionary Computation. We use genotype networks to characterize the mutational connectivity of an Evolutionary
Computation system, and to further quantify robustness and evolvability at the genotype, phenotype, and fitness levels. We show
that robustness and evolvability correlate very differently at these three levels, and their interplay crucially depends on how the
mutational connections are distributed among phenotypes.
邀请人: 王峰 副教授
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