搜索结果: 1-6 共查到“rare events”相关记录6条 . 查询时间(0.068 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Subsampling for Rare Events Data and maximum sampled conditional likelihood
罕见事件数据 子采样 最大采样 条件似然
2023/5/15
In this talk, we show that the available information about unknown parameters in rare events data is only tied to the relatively small number of cases, which justifies the usage of negative sampling. ...
Boosting search by rare events
Random search algorithm combination nonequilibrium random random algorithm
2015/8/21
Randomized search algorithms for hard combinatorial problems exhibit a large variability of per- formances. We study the different types of rare events which occur in such out-of-equilibrium stochasti...
“Superparamagnetic limit”: As magnetic devices become smaller
and smaller, the time for thermal activated switching might
become too short (shorter than desired data retention time).
Untypical, rare trajectories of dynamical systems are important: they are often the paths for chemical reactions, the haven of (relative) stability of planetary systems, the rogue waves that are detec...
Estimation of rare events probabilities in computer experiments
computer experiments rare events Kriging importance sampling Bayesian estimates risk assessment with ghter aircraft
2011/6/16
We are interested in estimating probabilities of rare events in the context of com-
puter experiments. These rare events depend on the output of a physical model with
random input variables. Since t...
Rare events and stochastic tunneling in a two-locus system with recombination
Rare events stochastic tunneling two-locus system
2011/1/5
We study the evolution of a population in a two-locus genotype space, in which the negative effects of two single mutations are overcompensated in a high fitness double mutant. We discuss how the inte...