bibtype J - Journal Article
ARLID 0444162
utime 20240103210104.7
mtime 20150609235959.9
WOS 000356731300069
SCOPUS 84934949836
DOI 10.1073/pnas.1505882112
title (primary) (eng) Sample and population exponents of generalized Taylor’s law
specification
page_count 16 s.
media_type E
serial
ARLID cav_un_epca*0257500
ISSN 0027-8424
title Proceedings of the National Academy of Sciences of the United States of America
volume_id 112
volume 25 (2015)
page_num 7755-7760
publisher
name National Academy of Sciences
keyword fluctuation scaling
keyword multiplicative growth
keyword power law
keyword environmental stochasticity
keyword Markovian environment
author (primary)
ARLID cav_un_auth*0314085
name1 Giometto
name2 A.
country CH
share 20
author
ARLID cav_un_auth*0316935
name1 Formentin
name2 Marco
full_dept (cz) Stochastická informatika
full_dept Department of Stochastic Informatics
department (cz) SI
department SI
institution UTIA-B
full_dept Department of Stochastic Informatics
share 20
fullinstit Ústav teorie informace a automatizace AV ČR, v. v. i.
author
ARLID cav_un_auth*0317332
name1 Rinaldo
name2 A.
country CH
author
ARLID cav_un_auth*0317333
name1 Cohen
name2 J.
country US
share 20
author
ARLID cav_un_auth*0317334
name1 Maritan
name2 A.
country IT
share 20
source
url http://library.utia.cas.cz/separaty/2015/SI/formentin-0444162.pdf
cas_special
project
project_id GAP201/12/2613
agency GA ČR
ARLID cav_un_auth*0291241
abstract (eng) Taylor’s law (TL) states that the variance V of a nonnegative random variable is a power function of its mean M; i.e., V =aM^b. TL has been verified extensively in ecology, where it applies to population abundance, physics, and other natural sciences. Its ubiquitous empirical verification suggests a context-independent mechanism. Sample exponents b measured empirically via the scaling of sample mean and variance typically cluster around the value b=2. Some theoretical models of population growth, however, predict a broad range of values for the population exponent b pertaining to the mean and variance of population density, depending on details of the growth process. Is the widely reported sample exponent b=2 the result of ecological processes or could it be a statistical artifact? Here, we apply large deviations theory and finite-sample arguments to show exactly that in a broad class of growth models the sample exponent is b=2 regardless of the underlying population exponent.
reportyear 2016
RIV BA
num_of_auth 5
inst_support RVO:67985556
permalink http://hdl.handle.net/11104/0247117
cooperation
ARLID cav_un_auth*0316939
name University of Padova
country IT
cooperation
ARLID cav_un_auth*0316940
name École Polytechnique Fédérale de Lausanne
country CH
cooperation
ARLID cav_un_auth*0316941
name The Rockefeller University
country US
confidential S
mrcbT16-e MULTIDISCIPLINARYSCIENCES
mrcbT16-j 4.682
mrcbT16-s 6.814
mrcbT16-4 Q1
mrcbT16-B 87.814
mrcbT16-C 94.444
mrcbT16-D Q1
mrcbT16-E Q1
arlyear 2015
mrcbU14 84934949836 SCOPUS
mrcbU34 000356731300069 WOS
mrcbU63 cav_un_epca*0257500 Proceedings of the National Academy of Sciences of the United States of America 0027-8424 1091-6490 Roč. 112 č. 25 2015 7755 7760 National Academy of Sciences