Hampshire College

About: Hampshire College is a education organization based out in Amherst Center, Massachusetts, United States. It is known for research contribution in the topics: Genetic programming & Population. The organization has 461 authors who have published 998 publications receiving 40827 citations.

Comparison of Semantic-aware Selection Methods in Genetic Programming

Abstract: This study investigates the performance of several semantic- aware selection methods for genetic programming (GP) In particular, we consider methods that do not rely on complete GP semantics (ie, a tuple of outputs produced by a program for fitness cases (tests)), but on binary outcome vectors that only state whether a given test has been passed by a program or not This allows us to relate to test-based problems commonly considered in the domain of coevolutionary algorithms and, in prospect, to address a wider range of practical problems, in particular the problems where desired program output is unknown (eg, evolving GP controllers) The selection methods considered in the paper include implicit fitness sharing (ifs), discovery of derived objectives (doc), lexicase selection (lex), as well as a hybrid of the latter two These techniques, together with a few variants, are experimentally compared to each other and to conventional GP on a battery of discrete benchmark problems The outcomes indicate superior performance of lex and ifs, with some variants of doc showing certain potential

Revitalizing Difference in the HapMap: Race and Contemporary Human Genetic Variation Research:

Abstract: Through an examination of the International Haplotype Map (HapMap), this paper explores some of the ways in which relationships among categories of race and genetic variation are being reconfigured in contemporary genetic research.

Right-wing authoritarianism and social dominance orientation differentially predict biased evaluations of media reports

Abstract: This study tested the dual-process motivational (DPM) model, which posits that right-wing authoritarianism (RWA) and social dominance orientation (SDO) differentially predict attitudes toward socially threatening or subordinate groups, respectively. Participants read articles on same-sex relationships and affirmative action and evaluated the article content and the biases of the article authors. The article conclusions (i.e., pro- or anti-same-sex relationships and affirmative action) were varied between subjects. As expected, only RWA predicted evaluations of the same-sex relationships articles and authors, whereas only SDO predicted evaluations of the affirmative action articles and authors. These results extend applications of the dual-process model by demonstrating that RWA and SDO differentially predict evaluations of political information that pertains to socially threatening or subordinate groups, respectively.