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2020 computing: science in an exponential world 总被引:2,自引:0,他引:2
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Visual Models in Analogical Problem Solving 总被引:1,自引:0,他引:1
Visual analogy is believed to be important in human problem solving. Yet, there are few computational models of visual analogy.
In this paper, we present a preliminary computational model of visual analogy in problem solving. The model is instantiated
in a computer program, called Galatea, which uses a language for representing and transferring visual information called Privlan.
We describe how the computational model can account for a small slice of a cognitive-historical analysis of Maxwell’s reasoning
about electromagnetism. 相似文献
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M. Bullejos M. Burgos R. Jiménez A. Sánchez R. Díaz de la Guardia 《Cellular and molecular life sciences : CMLS》1996,52(6):511-515
We used the X chromosomes ofMicrotus cabrerae as a model to analyze the distribution of sister chromatid exchanges (SCEs) on different types of chromatin, because of the marked heterogeneity of the heterochromatin in the entire short arm and a portion of the long arm of this chromosome. Computer-simulated distributions, according to an algorithm that makes it possible to modify the distribution on the basis of any possible hypothesis, were compared with real distributions by log-linear models. We found that the frequency of SCEs in different types of heterochromatin was higher than that expected for a random distribution, and located an SCE hot-spot at the junction between euchromatin and heterochromatin. The possible relationship between the distribution of SCEs and base composition or chromatin accessibility are discussed. 相似文献