منابع مشابه
Peter Burrough: A Research Appreciation
With the death of Peter Alan Burrough in Leiden on 9 January 2009 the field of geographic information science (GIScience) lost one of its founding fathers, a scholar whose contribution was prolific, rigorous, original, and always ground-breaking. His career was marked by numerous firsts, including the first widely read textbook on geographic information systems (Burrough, 1986). He directed ove...
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Many learning tasks involve searching through a discrete space of performance elements, seeking an element whose future utility is expected to be high. As the task of nding the global optimum is often intractable, many practical learning systems use simple forms of hill-climbing to nd a locally optimal element. However, hill-climbing can be complicated by the fact that the utility value of a pe...
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متن کاملA Multivariate Hill Estimator
We propose a simple and semi-parametric estimator for the tail index of a regular varying elliptical random vector. Since, for univariate random variables, our estimator boils down to the Hill estimator and it inherits the simplicity and asymptotic properties, we name it after Bruce M. Hill. The estimator is based on the distance between an elliptical probability contour and the outer – or exce...
متن کاملStochastic Enforced Hill-Climbing
Enforced hill-climbing is an effective deterministic hillclimbing technique that deals with local optima using breadth-first search (a process called “basin flooding”). We propose and evaluate a stochastic generalization of enforced hill-climbing for online use in goal-oriented probabilistic planning problems. We assume a provided heuristic function estimating expected cost to the goal with fla...
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ژورنال
عنوان ژورنال: European Journal of International Law
سال: 2013
ISSN: 0938-5428,1464-3596
DOI: 10.1093/ejil/chs095