منابع مشابه
Stagewise Lasso Stagewise Lasso
Many statistical machine learning algorithms (in regression or classification) minimize either an empirical loss function as in AdaBoost, or a penalized empirical loss as in SVM. A single regularization tuning parameter controls the trade-off between fidelity to the data and generalibility, or equivalently between bias and variance. When this tuning parameter changes, a regularization “path” of...
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Reindeer are either wild or kept under very extensive farming systems. They are seasonal breeders, with mating coinciding with the decreasing photoperiod in the autumn, and with calving in the spring. Little is known regarding the factors that influence reproduction in reindeer or of their reproductive physiology. Studies carried out to date have mainly focused on issues related to the populati...
متن کاملEpidemiology of reindeer parasites.
Every Christmas we sing about Rudolph the red-nosed Reindeer, but do we give much thought to why his nose is red? The general consensus is that Rudolf has caught a cold, but as far as I know no proper diagnosis has been made of his abnormal condition. I think that, rather than having a cold, Rudolf is suffering from a parasitic infection of his respiratory system. To some this may seem a bit fa...
متن کاملThe deterministic Lasso
We study high-dimensional generalized linear models and empirical risk minimization using the Lasso. An oracle inequality is presented, under a so called compatibility condition. Our aim is three fold: to proof a result announced in van de Geer (2007), to provide a simple proof with simple constants, and to separate the stochastic problem from the deterministic one.
متن کاملThe predictive Lasso
We propose a shrinkage procedure for simultaneous variable selection and estimation in generalized linear models (GLMs) with an explicit predictive motivation. The procedure estimates the coefficients by minimizing the Kullback-Leibler divergence of a set of predictive distributions to the corresponding predictive distributions for the full model, subject to an constraint on the coefficient vec...
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ژورنال
عنوان ژورنال: Etnográfica
سال: 2022
ISSN: ['0873-6561', '2182-2891']
DOI: https://doi.org/10.4000/etnografica.12777