Results 61 to 70 of about 5,701,088 (332)

occumb: An R package for site occupancy modeling of eDNA metabarcoding data

Population Ecology, EarlyView.
This study introduces a new R package, occumb, for the convenient application of site occupancy modeling using environmental DNA (eDNA) metabarcoding data. We outline a data analysis workflow, including data setup, model fitting, model assessment, and comparison of potential study settings based on model predictions, all of which can be performed using
Keiichi Fukaya, Yuta Hasebe
wiley   +1 more source

Goals and the Informativeness of Prior Probabilities [PDF]

Erkenntnis, 2017
I argue that information is a goal-relative concept for Bayesians. More precisely, I argue that how much information (or confirmation) is provided by a piece of evidence depends on whether the goal is to learn the truth or to rank actions by their expected utility, and that different confirmation measures should therefore be used in different contexts.
openaire   +2 more sources

Numerical optimization using flow equations

, 2014
We develop a method for multidimensional optimisation using flow equations. This method is based on homotopy continuation in combination with a maximum entropy approach. Extrema of the optimising functional correspond to fixed points of the flow equation.
Punk, Matthias
core   +1 more source

Approximation of improper priors [PDF]

, 2016
We propose a convergence mode for positive Radon measures which allows a sequence of probability measures to have an improper limiting measure. We define a sequence of vague priors as a sequence of probability measures that converges to an improper prior.
Bioche, Christele, Druilhet, Pierre
core   +1 more source

Social context prevents heat hormetic effects against mutagens during fish development

FEBS Letters, EarlyView.
This study shows that sublethal heat stress protects fish embryos against ultraviolet radiation, a concept known as ‘hormesis’. However, chemical stress transmission between fish embryos negates this protective effect. By providing evidence for the mechanistic molecular basis of heat stress hormesis and interindividual stress communication, this study ...
Lauric Feugere, Claudio Silva De Freitas, Adam Bates, Kenneth B. Storey, Pedro Beltran‐Alvarez, Katharina C. Wollenberg Valero   +5 more
wiley   +1 more source

Prediction of algal bloom occurrence based on the naive Bayesian model considering satellite image pixel differences

Ecological Indicators, 2021
Bloom occurrence probability prediction is a critical issue for freshwater resource management and protection. As the mechanism of algal blooms is not understood, the construction of prediction model mainly depends on statistical data.
Meng Mu, Yunmei Li, Shun Bi, Heng Lyu, Jie Xu, Shaohua Lei, Song Miao, Shuai Zeng, Zhubin Zheng, Chenggong Du   +9 more
doaj  

The Importance of Prior Probabilities for Entry Page Search [PDF]

Proceedings of the 25th annual international ACM SIGIR conference on Research and development in information retrieval, 2002
An important class of searches on the world-wide-web has the goal to find an entry page (homepage) of an organisation. Entry page search is quite different from Ad Hoc search. Indeed a plain Ad Hoc system performs disappointingly. We explored three non-content features of web pages: page length, number of incoming links and URL form. Especially the URL
Kraaij, W., Westerveld, T., Hiemstra, D.
openaire   +5 more sources

Constructing inverse probability weights for marginal structural models.

American Journal of Epidemiology, 2008
The method of inverse probability weighting (henceforth, weighting) can be used to adjust for measured confounding and selection bias under the four assumptions of consistency, exchangeability, positivity, and no misspecification of the model used to ...
S. Cole, M. Hernán
semanticscholar   +1 more source

Quantum Detection with Unknown States

, 2005
We address the problem of distinguishing among a finite collection of quantum states, when the states are not entirely known. For completely specified states, necessary and sufficient conditions on a quantum measurement minimizing the probability of a ...
A. Ben-Tal, A. Ben-Tal, A. Peres, C. W. Helstrom, H. P. Yuen, K. Życzkowski, L. Vandenberghe, M. A. Nielsen, Noam Elron, S. Boyd, Y. C. Eldar, Y. Nesterov, Yonina C. Eldar   +12 more
core   +1 more source

A stepwise emergence of evolution in the RNA world

FEBS Letters, EarlyView.
How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley   +1 more source