منابع مشابه
The alternation effect in ionic liquid homologous series.
A recent report on a density odd-even alternation effect in a homologous series of ionic liquids (alkyltrioctylphosphonium chlorides, with the linear alkyl group ranging from ethyl to decyl) led to the detection of a similar trend in another ionic liquid family based on a different cation (1-alkyl-3-methylimidazolium). Ab initio calculations and Molecular Dynamics simulations of the correspondi...
متن کاملAntithetic Coupling for Perfect Sampling
This paper reports some initial investigations of the use of antithetic variates in perfect sampling. A simple random walk example is presented to illustrate the key ingredients of antithetic coupling for perfect sampling as well as its potential benefit. A key step in implementing antithetic coupling is to generate random variates that are negatively associated, a stronger condition than negat...
متن کاملSpontaneous alternation in marine crabs: invasive versus native species.
Organisms ranging from paramecia to humans tend to explore places that have been least recently explored, which is referred to as spontaneous alternation. Although organisms rely on different sources of information in alternating between places, the emergent behavioral pattern is likely advantageous during exploration and foraging. Under this rationale, continuous spontaneous alternation perfor...
متن کاملVariance Reduction via Antithetic Markov Chains
We present a Monte Carlo integration method, antithetic Markov chain sampling (AMCS), that incorporates local Markov transitions in an underlying importance sampler. Like sequential Monte Carlo sampling, the proposed method uses a sequence of Markov transitions to guide the sampling toward influential regions of the integrand (modes). However, AMCS differs in the type of transitions that may be...
متن کاملLocal Antithetic Sampling with Scrambled Nets
[0,1]d f(x)dx. Monte Carlo (MC) sampling typically attains a root mean squared error (RMSE) of O(n) from n independent random function evaluations. By contrast, quasi-Monte Carlo (QMC) sampling using carefully equispaced evaluation points can attain the rate O(n) for any ε > 0 and randomized QMC (RQMC) can attain the RMSE O(n), both under mild conditions on f . Classical variance reduction meth...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The American Naturalist
سال: 1903
ISSN: 0003-0147,1537-5323
DOI: 10.1086/278272