Are discrete models more accurate?
نویسندگان
چکیده
منابع مشابه
Are discrete models more accurate?
Newton’s second law describes the motion of the center of mass of most objects that we encounter in everyday life, including the complex motion of a spoon when we eat, the acceleration of a car, and even the trajectories of planets and stars. Only if objects move extremely fast, do we need to replace Newton’s second law with Einstein’s theory of relativity, and only if objects are extremely sma...
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Classification trees are attractive in that they present a simple and easily understandable structure. But on many data sets their accuracy is far from optimal. Much of this lack of accuracy is due to their instability--small changes in the data can lead to large changes in the resulting tree. This instability is the reason that combining many trees by voting can lead to dramatic decreases in t...
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* Correspondence: qlhuang@yeah. net Department of Mathematics, Guangdong University of Education, Guangzhou, Guangdong 510303, People’s Republic of China Abstract By using the way of weight coefficients and the idea of introducing parameters and by means of Hadamard’s inequality, we give a more accurate half-discrete Hilbert’s inequality with a best constant factor. We also consider its best ex...
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ژورنال
عنوان ژورنال: Complexity
سال: 2010
ISSN: 1076-2787
DOI: 10.1002/cplx.20351