Zobrazeno 1 - 10
of 744
pro vyhledávání: '"TAVARÉ, SIMON"'
Approximate Bayesian Computation (ABC) is a popular inference method when likelihoods are hard to come by. Practical bottlenecks of ABC applications include selecting statistics that summarize the data without losing too much information or introduci
Externí odkaz:
http://arxiv.org/abs/2406.15865
We explore the cycle types of a class of biased random derangements, described as a random game played by some children labeled $1,\cdots,n$. Children join the game one by one, in a random order, and randomly form some circles of size at least $2$, s
Externí odkaz:
http://arxiv.org/abs/2211.13831
Models of counts-of-counts data have been extensively used in the biological sciences, for example in cancer, population genetics, sampling theory and ecology. In this paper we explore properties of one model that is embedded into a continuous-time p
Externí odkaz:
http://arxiv.org/abs/2210.07307
Gradient estimation is often necessary for fitting generative models with discrete latent variables, in contexts such as reinforcement learning and variational autoencoder (VAE) training. The DisARM estimator (Yin et al. 2020; Dong, Mnih, and Tucker
Externí odkaz:
http://arxiv.org/abs/2208.06124
We study derangements of $\{1,2,\ldots,n\}$ under the Ewens distribution with parameter $\theta$. We give the moments and marginal distributions of the cycle counts, the number of cycles, and asymptotic distributions for large $n$. We develop a $\{0,
Externí odkaz:
http://arxiv.org/abs/2006.04840
Autor:
Tavaré, Simon
We investigate properties of random mappings whose core is composed of derangements as opposed to permutations. Such mappings arise as the natural framework to study the Screaming Toes game described, for example, by Peter Cameron. This mapping diffe
Externí odkaz:
http://arxiv.org/abs/2006.04805
Publikováno v:
In Stochastic Processes and their Applications August 2022 150:1139-1164
Autor:
Griffiths, Robert C., Tavaré, Simon
We consider inference about the history of a sample of DNA sequences, conditional upon the haplotype counts and the number of segregating sites observed at the present time. After deriving some theoretical results in the coalescent setting, we implem
Externí odkaz:
http://arxiv.org/abs/1705.09485
Publikováno v:
Statistica Sinica, 2021 Jan 01. 31(3), 1309-1329.
Externí odkaz:
https://www.jstor.org/stable/27034819