Results 111 to 120 of about 85,479 (297)
Seriation in paleontological data using markov chain Monte Carlo methods.
PLoS Computational Biology, 2006 Given a collection of fossil sites with data about the taxa that occur in each site, the task in biochronology is to find good estimates for the ages or ordering of sites. We describe a full probabilistic model for fossil data.
Kai Puolamäki +2 more
doaj +1 more source
Information Design for Early‐Stage Dose‐Finding Trials
Naval Research Logistics (NRL), EarlyView.ABSTRACT To enhance enrollment rates in early‐stage dose‐finding clinical trials, we propose an information design approach, where the clinical investigator (CI) commits to an information releasing mechanism (IRM) based on the treatment's uncertain efficacy and toxicity to encourage patients to participate in the trial.
Amin Khademi, Ningyuan Chen
wiley +1 more source
Automatic Parallel Tempering Markov Chain Monte Carlo with Nii-C
The Astrophysical Journal Supplement SeriesDue to the high dimensionality or multimodality that is common in modern astronomy, sampling Bayesian posteriors can be challenging. Several publicly available codes based on different sampling algorithms can solve these complex models, but the execution
Sheng Jin, Wenxin Jiang, Dong-Hong Wu
doaj +1 more source
Nordic Journal of Botany, EarlyView.The Irano‐Turanian Floristic Region harbors a rich flora, but our understanding of the development of this diversity is limited by a lack of data on phylogenetic relationships and biogeographic patterns of endemic and more widespread plants. Hypotheses of in situ diversification versus allopatric diversification were tested using Iris subgen. Scorpiris,
Mona Salimbahrami +4 more
wiley +1 more source
Ideal Observer Computation by Use of Markov-Chain Monte Carlo With Generative Adversarial Networks. [PDF]
IEEE Trans Med Imaging, 2023 Zhou W, Villa U, Anastasio MA.
europepmc +1 more source
Amanita theophili sp. nov. (Amanitaceae) from central Mexico
Nordic Journal of Botany, EarlyView.Amanita theophili sp. nov., a member of Amanita sect. Amidella (Amanitaceae), is described from temperate pine‐oak forests in Morelos, central Mexico. Morphological features and phylogenetic analyses based on ITS and 28S rDNA sequences confirm its distinct taxonomic status. The new species is morphologically similar to A. peckiana and A.
Evangelina Pérez‐Silva +1 more
wiley +1 more source
Connecting the distribution and diversification of marine plants
Oikos, EarlyView.Integration of the evolutionary history with distribution of extant species is necessary to explain present‐day diversity, particularly for ‘foundation' species, such as seagrasses, which create habitats of socioecological relevance. Here, we resolved if varying evolutionary history of seagrass families has imprinted the distribution ranges of extant ...
Fernando Tuya +3 more
wiley +1 more source
A Markov chain Monte Carlo algorithm for Bayesian policy search
Systems Science & Control Engineering, 2018 Policy search algorithms have facilitated application of Reinforcement Learning (RL) to dynamic systems, such as control of robots. Many policy search algorithms are based on the policy gradient, and thus may suffer from slow convergence or local optima ...
Vahid Tavakol Aghaei +2 more
doaj +1 more source
Detecting extirpation: A localized approach to a global problem
PLANTS, PEOPLE, PLANET, EarlyView.The global biodiversity crisis stems from a cascading series of extirpations driving species toward extinction. Addressing this crisis requires methods for early detection of extinction at local scales, where communities can mobilize conservation efforts.
Andrew D. F. Simon +4 more
wiley +1 more source
Bayesian Trend Filtering via Proximal Markov Chain Monte Carlo. [PDF]
J Comput Graph Stat, 2023 Heng Q, Zhou H, Chi EC.
europepmc +1 more source