منابع مشابه
Assessing linearity in high dimensions
Some standard numerical problems become intractable in high dimensions. Yet successes are often achieved in practice. This may be explained in terms of the underlying target function being somehow simpler than assumed in the intractability arguments. A prototypical form of simplicity is approximate linearity. In moderate dimensions linearity can be investigated by linear regression. In very hig...
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An overview on linearity and efficiency performance optimisation in power amplifier (PA) is presented, stressing the required trade-off demanded to PA designers. For efficiency improvement, the harmonic tuning strategies are discussed, with their advantages and major drawbacks. For linearity improvement, the IMD sweet spot optimisation strategies is presented as a solution to obtain low intermo...
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Introduction: Posttraumatic growth is defined as subjective positive psychological changes following the struggle with highly challenging life events. Objective: The aim of current study was to determine dimensions of posttraumatic growth in patients with cancer. Methods: This is cross-sectional descriptive study. Study population included all cancer patients of two main referral hospitals in T...
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A VHF (30MHz-300MHz) band digitally programmable low noise amplifier (LNA) has been implemented with a 0.25um standard CMOS process for VHF CMMB mobile TV tuners. Utilizing a T-match input network, input matching of more than a decade bandwidth is achieved across all gain settings. Adopting the multiple gated technique, gain flatness enhancement and capacitor reuse etc., the proposed LNA demons...
متن کاملEndogeneity in High Dimensions.
Most papers on high-dimensional statistics are based on the assumption that none of the regressors are correlated with the regression error, namely, they are exogenous. Yet, endogeneity can arise incidentally from a large pool of regressors in a high-dimensional regression. This causes the inconsistency of the penalized least-squares method and possible false scientific discoveries. A necessary...
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ژورنال
عنوان ژورنال: The Annals of Statistics
سال: 2000
ISSN: 0090-5364
DOI: 10.1214/aos/1016120362