Results 11 to 20 of about 2,518,110 (330)
On Accuracy of PDF Divergence Estimators and Their Applicability to Representative Data Sampling
Entropy, 2011 Generalisation error estimation is an important issue in machine learning. Cross-validation traditionally used for this purpose requires building multiple models and repeating the whole procedure many times in order to produce reliable error estimates ...
Katarzyna Musial +2 more
doaj +2 more sources
Estimating parameters of speciation models based on refined summaries of the joint site-frequency spectrum. [PDF]
PLoS ONE, 2011 Understanding the processes and conditions under which populations diverge to give rise to distinct species is a central question in evolutionary biology.
Aurélien Tellier +7 more
doaj +3 more sources
Dating Tips for Divergence-Time Estimation [PDF]
Trends in Genetics, 2015 The molecular clock is the only viable means of establishing an accurate timescale for Life on Earth, but it remains reliant on a capricious fossil record for calibration. 'Tip-dating' promises a conceptual advance, integrating fossil species among their living relatives using molecular/morphological datasets and evolutionary models.
O'Reilly, Joseph E. +2 more
openaire +5 more sources
Systematic Biology, 2022 Phylogenetic analyses are increasingly being performed with data sets that incorporate hundreds of loci. Due to incomplete lineage sorting, hybridization, and horizontal gene transfer, the gene trees for these loci may often have topologies that differ ...
T. Carruthers +5 more
semanticscholar +2 more sources
Entropy, 2018 This paper presents a covariance matrix estimation method based on information geometry in a heterogeneous clutter. In particular, the problem of covariance estimation is reformulated as the computation of geometric median for covariance matrices ...
Xiaoqiang Hua +3 more
doaj +3 more sources
Phylogenetic and Divergence Time Estimation of Muscomorpha with Low-Coverage Whole-Genome Sequencing of Syrphidae (Diptera: Brachycera) [PDF]
BiologyMuscomorpha is one of the most diverse groups in Brachycera, yet its higher-level phylogenetic relationships remain controversial, primarily concerning the monophyly and placement of Syrphoidea, the position of Platypezoidea, internal relationships in ...
Chunfeng Liao +4 more
doaj +2 more sources
Globally Optimal Event-Based Divergence Estimation for Ventral Landing [PDF]
ECCV Workshops, 2022 Event sensing is a major component in bio-inspired flight guidance and control systems. We explore the usage of event cameras for predicting time-to-contact (TTC) with the surface during ventral landing. This is achieved by estimating divergence (inverse
Sofia McLeod +7 more
semanticscholar +1 more source
Minimum density power divergence estimation for the generalized exponential distribution [PDF]
Communications in Statistics - Theory and Methods, 2022 Statistical modeling of rainfall data is an active research area in agro-meteorology. The most common models fitted to such datasets are exponential, gamma, log-normal, and Weibull distributions. As an alternative to some of these models, the generalized
A. Hazra
semanticscholar +1 more source
Entropy, 2023 We present an empirical estimator for the squared Hellinger distance between two continuous distributions, which almost surely converges. We show that the divergence estimation problem can be solved directly using the empirical CDF and does not need the ...
Rui Ding, Andrew Mullhaupt
doaj +1 more source
Scalable Bayesian divergence time estimation with ratio transformations. [PDF]
Systematic Biology, 2021 Divergence time estimation is crucial to provide temporal signals for dating biologically important events, from species divergence to viral transmissions in space and time.
Xiang Ji +7 more
semanticscholar +1 more source