Results 81 to 90 of about 1,096,936 (228)

Bayesian inference for dynamic Q matrices and attribute trajectories in hidden Markov diagnostic classification models

British Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract Hidden Markov diagnostic classification models capture how students' cognitive attributes evolve over time. This paper introduces a Bayesian Markov chain Monte Carlo algorithm for diagnostic classification models that jointly estimates time‐varying Q matrices, latent attributes, item parameters, attribute class proportions and transition ...
Chen‐Wei Liu
wiley   +1 more source

Stabilization of Euler-Bernoulli beam equations with variable coefficients under delayed boundary output feedback

Electronic Journal of Differential Equations, 2015
In this article, we study the stabilization of an Euler-Bernoulli beam equation with variable coefficients where boundary observation is subject to a time delay.
Kun-Yi Yang, Jing-Jing Li, Jie Zhang
doaj  

Review of cognitive diagnostic models (CDMs): Recent methodological advancements for addressing practical challenges

British Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract Cognitive diagnostic models (CDMs) have become essential tools for providing fine‐grained information about individuals' mastery of cognitive skills. While prior reviews have emphasized statistical foundations and deep learning‐based developments, this article focuses on recent methodological innovations designed to address persistent ...
Chun Wang, Yale Quan, David Arthur
wiley   +1 more source

... Specimen inaugurale sistens observationes iuridicas varii argumenti

quas ... pro summis in utroque iure honoribus rite consequendis ad d. 7. Aprilis MDCCLXXVIII ... publice defendet Iacobus Bernoulli Ioh. filius BasileensisEnthält 7 ThesenDiss. Univ.
Bernoulli, Jakob
core   +1 more source

The link between colorfulness and extinction risk across the world's passerine birds

Conservation Biology, EarlyView.
Abstract Many of the functional traits that mediate extinction risk across the range of biodiversity relate indirectly to a species’ ability to persist in a changing world, yet certain traits such as coloration directly affect human interactions with wildlife.
Montague H. C. Neate‐Clegg, Natalia Ocampo‐Peñuela   +1 more
wiley   +1 more source

... Theses iuridicae ex vario iure desumtae

quas ... pro vacante cathedra iuris publice defendet Ioh. Bernoulli, Ioh. fil. i.u.c. die 27. Aprilis M DCC XXXI. ...Enthält 46 ThesenDisputatio pro cathedra vac. jur.
Bernoulli, Johann
core   +1 more source

Integrated species distribution modeling to assess species status and current and future threats for an imperiled amphibian

Conservation Science and Practice, EarlyView.
To understand the range‐wide drivers of Arizona Toad distribution and anticipate future changes, we combined 13 datasets covering distinct portions of the range in an integrated species distribution model. We estimate that the current occupied range is 1/4–1/3 of previously defined range boundaries and that increasingly dry conditions will lead to ...
C. Lane Scher, Brian J. Tornabene, David F. Bradford, J. Tomasz Giermakowski, Caren S. Goldberg, Evan H. Campbell Grant, David A. W. Miller, Riley O. Mummah, Erin Muths, Mason J. Ryan, Brent H. Sigafus, Kenzi M. Stemp, Brian K. Sullivan, Kevin K. Wheeler, Blake R. Hossack   +14 more
wiley   +1 more source

Stochastic Approximation for Expensive One-Bit Feedback Systems

Tsinghua Science and Technology, 2017
One-bit feedback systems generate binary data as their output and the system performance is usually measured by the success rate with a fixed parameter combination. Traditional methods need many executions for parameter optimization.
Xiaoqin Zhang, Huimin Ma, Jinghuan Wen
doaj   +1 more source

Dietary selectivity mediates niche overlap and interspecific competition in a reedbed warbler community in southern Europe

Ibis, EarlyView.
Sympatric species are expected to use resources differently along one or more ecological dimensions. This can be complex when there is partial separation along multiple dimensions, such as where bird species exhibit similarities in habitat use and diet.
S. R. Davies, I. P. Vaughan, R. J. Thomas, P. Josa, S. Bateman Posse, W. O. C. Symondson   +5 more
wiley   +1 more source

A Horse Race of Machine‐Learning Methods to Predict Banking Crises

International Finance, EarlyView.
ABSTRACT To examine if one machine‐learning model can consistently elucidate financial vulnerabilities, both over time and across levels of development, this paper applies 13 machine‐learning algorithms to evaluate comparative forecasting performance across several banking crises.
Emile du Plessis
wiley   +1 more source