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排序方式： 共有3739条查询结果，搜索用时 31 毫秒
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Models of human information seeking in searching online bibliographic citation networks are discussed. First, the experimental environment called DBASE (Data Base Access and Search Environment) and the results from two previous experiments are briefly reviewed. Rule-based and decision theoretic approaches to modeling the search task are then presented and a progression of models is developed. The models are used to derive “optimal” search strategies when both constrained and unconstrained by experimental data. Finally, the rule-based model is used to mimic subject performance and the differences between model and subject performance are considered. 相似文献
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William A. Mehrens 《Educational Measurement》1991,10(2):23-25
In past issues (vol.8, no. 1 and vol. 10, no. 1), Mehrens & Kaminski and Cohen & Hyman have addressed test-preparation procedures. On what points is there agreement between these authors? What are points of disagreement? Where have Cohen & Hyman misinterpreted Mehrens & Kaminski? What points made by Cohen & Hyman confuse Mehrens? 相似文献
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William G. Holliday 《科学教学研究杂志》1979,16(2):167-176
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The purpose of this paper is to state what the author believes is a good way to develop the powers of understanding of talented college science students. After making a careful and somewhat novel distinction between knowledge and understanding, the paper closely defines the main problem in terms of the new interpretation of "understanding." A short discussion follows which concludes that what is needed is more and better schooling in the central ideas of mathematics. At this point, the tenor of the paper is changed and a semipopular discussion is given on the fundamental type of mathematics the author has in mind. Finally, a proposal is made which is general enough to be adapted to a wide variety of situations. 相似文献
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