David Bourget (Western Ontario)
David Chalmers (ANU, NYU)
Rafael De Clercq
Jack Alan Reynolds
Learn more about PhilPapers
Evolutionary algorithms typically use direct encodings, where each element of the phenotype is specified independently in the genotype. Because direct encodings have difficulty evolving modular and symmetric phenotypes, some researchers use indirect encodings, wherein one genomic element can influence multiple parts of a phenotype. We have previously shown that Hyper- NEAT, an indirect encoding, outperforms FT-NEAT, a direct-encoding control, on many problems, especially as the regularity of the problem increases. However, HyperNEAT is no panacea; it had difficulty accounting for irregularities in problems. In this paper, we propose a new algorithm, a Hybridized Indirect and Direct encoding (HybrID), which discovers the regularity of a problem with an indirect encoding and accounts for irregularities via a direct encoding. In three different problem domains, HybrID outperforms HyperNEAT in most situations, with performance improvements as large as 40%. Our work suggests that hybridizing indirect and direct encodings can be an effective way to improve the performance of evolutionary algorithms
|Keywords||No keywords specified (fix it)|
|Categories||categorize this paper)|
Setup an account with your affiliations in order to access resources via your University's proxy server
Configure custom proxy (use this if your affiliation does not provide a proxy)
|Through your library||
References found in this work BETA
No references found.
Citations of this work BETA
No citations found.
Similar books and articles
Emar Maier (2009). Japanese Reported Speech: Against a Direct--Indirect Distinction. In Hattori et al (ed.), New Frontiers in Artificial Intelligence. Springer. 133--145.
Farrell Ackerman & John Moore (1999). Syntagmatic and Paradigmatic Dimensions of Causee Encodings. Linguistics and Philosophy 22 (1):1-44.
Pierre le Morvan (2004). Arguments Against Direct Realism and How to Counter Them. American Philosophical Quarterly 41 (3):221-234.
Lester Embree (2006). Direct and Indirect Consciousness. Journal of Phenomenological Psychology 37 (1):1-8.
Yael Sharvit (2008). The Puzzle of Free Indirect Discourse. Linguistics and Philosophy 31 (3):353-395.
William C. Fish (2004). The Direct/Indirect Distinction in Contemporary Philosophy of Perception. Essays in Philosophy 5 (1):1-13.
Rico Vitz, Doxastic Voluntarism. Internet Encyclopedia of Philosophy.
Eric Wiland (2010). The Limits of Maximization. Polish Journal of Philosophy 4 (1):99-116.
William S. Robinson (1995). Direct Representation. Philosophical Studies 80 (3):305-22.
Added to index2010-07-03
Total downloads6 ( #233,499 of 1,679,387 )
Recent downloads (6 months)1 ( #183,003 of 1,679,387 )
How can I increase my downloads?