Baden-Baden : DWV, Deutscher Wissenschafts-Verlag, 2019.

Rockville, Maryland : National Institute on Drug Abuse, 1976.

Rockville, Maryland : National Institute on Drug Abuse, 1982.

Rockville, Maryland : National Institute on Drug Abuse, 1986.

Springfield, Virginia : National Technical Information Service, 1985.

Alex Diana, Eleni Matechou, Jim Griffin, Alison Johnston.

Source: The Annals of Applied Statistics, Volume 14, Number 1, 473--493.

Abstract:
Environmental changes in recent years have been linked to phenological shifts which in turn are linked to the survival of species. The work in this paper is motivated by capture-recapture data on blackcaps collected by the British Trust for Ornithology as part of the Constant Effort Sites monitoring scheme. Blackcaps overwinter abroad and migrate to the UK annually for breeding purposes. We propose a novel Bayesian nonparametric approach for expressing the bivariate density of individual arrival and departure times at different sites across a number of years as a mixture model. The new model combines the ideas of the hierarchical and the dependent Dirichlet process, allowing the estimation of site-specific weights and year-specific mixture locations, which are modelled as functions of environmental covariates using a multivariate extension of the Gaussian process. The proposed modelling framework is extremely general and can be used in any context where multivariate density estimation is performed jointly across different groups and in the presence of a continuous covariate.

Siekmann, Francis Heinrich Ernst, 1830-1917.

Penney, Anna -- Travels.

Yushu Shi, Michael Martens, Anjishnu Banerjee, Purushottam Laud.

Source: Bayesian Analysis, Volume 14, Number 3, 677--702.

Abstract:
Dirichlet process mixture (DPM) models provide flexible modeling for distributions of data as an infinite mixture of distributions from a chosen collection. Specifying priors for these models in individual data contexts can be challenging. In this paper, we introduce a scheme which requires the investigator to specify only simple scaling information. This is used to transform the data to a fixed scale on which a low information prior is constructed. Samples from the posterior with the rescaled data are transformed back for inference on the original scale. The low information prior is selected to provide a wide variety of components for the DPM to generate flexible distributions for the data on the fixed scale. The method can be applied to all DPM models with kernel functions closed under a suitable scaling transformation. Construction of the low information prior, however, is kernel dependent. Using DPM-of-Gaussians and DPM-of-Weibulls models as examples, we show that the method provides accurate estimates of a diverse collection of distributions that includes skewed, multimodal, and highly dispersed members. With the recommended priors, repeated data simulations show performance comparable to that of standard empirical estimates. Finally, we show weak convergence of posteriors with the proposed priors for both kernels considered.

Łukasz Rajkowski.

Source: Bayesian Analysis, Volume 14, Number 2, 477--494.

Abstract:
Mixture models are a natural choice in many applications, but it can be difficult to place an a priori upper bound on the number of components. To circumvent this, investigators are turning increasingly to Dirichlet process mixture models (DPMMs). It is therefore important to develop an understanding of the strengths and weaknesses of this approach. This work considers the MAP (maximum a posteriori) clustering for the Gaussian DPMM (where the cluster means have Gaussian distribution and, for each cluster, the observations within the cluster have Gaussian distribution). Some desirable properties of the MAP partition are proved: ‘almost disjointness’ of the convex hulls of clusters (they may have at most one point in common) and (with natural assumptions) the comparability of sizes of those clusters that intersect any fixed ball with the number of observations (as the latter goes to infinity). Consequently, the number of such clusters remains bounded. Furthermore, if the data arises from independent identically distributed sampling from a given distribution with bounded support then the asymptotic MAP partition of the observation space maximises a function which has a straightforward expression, which depends only on the within-group covariance parameter. As the operator norm of this covariance parameter decreases, the number of clusters in the MAP partition becomes arbitrarily large, which may lead to the overestimation of the number of mixture components.

Lloyd T. Elliott, Maria De Iorio, Stefano Favaro, Kaustubh Adhikari, Yee Whye Teh.

Source: Bayesian Analysis, Volume 14, Number 2, 313--339.

Abstract:
We propose a Bayesian nonparametric model to infer population admixture, extending the hierarchical Dirichlet process to allow for correlation between loci due to linkage disequilibrium. Given multilocus genotype data from a sample of individuals, the proposed model allows inferring and classifying individuals as unadmixed or admixed, inferring the number of subpopulations ancestral to an admixed population and the population of origin of chromosomal regions. Our model does not assume any specific mutation process, and can be applied to most of the commonly used genetic markers. We present a Markov chain Monte Carlo (MCMC) algorithm to perform posterior inference from the model and we discuss some methods to summarize the MCMC output for the analysis of population admixture. Finally, we demonstrate the performance of the proposed model in a real application, using genetic data from the ectodysplasin-A receptor (EDAR) gene, which is considered to be ancestry-informative due to well-known variations in allele frequency as well as phenotypic effects across ancestry. The structure analysis of this dataset leads to the identification of a rare haplotype in Europeans. We also conduct a simulated experiment and show that our algorithm outperforms parametric methods.

<span class="topsy_trackback_comment"><span class="topsy_twitter_username"><span class="topsy_trackback_content">Connecticut statue unveiled at its new home – Richmond Times Dispatch http://bit.ly/9LUBTy #IMCRadio.net</span></span>

This rapid and efficient method to prepare highly purified recombinant adeno-associated viruses (rAAVs) is based on binding of negatively charged rAAV capsids to an anion-exchange resin that is pH dependent.

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German translation of the BIS Quarterly Review, June 2017.

German translation of the 87th Annual Report (01.04.2016-31.03.2017) of the BIS, released on 25 June 2017

German translation of the BIS press release about the BIS Quarterly Review, September 2017

German translation of the BIS Quarterly Review, September 2017

German translation of the BIS press release about the BIS Quarterly Review, December 2017

German translation of the BIS Quarterly Review, December 2017

German translation of the BIS Quarterly Review, March 2018

German translation of the BIS press release about the BIS Quarterly Review, March 2018

German translation of the BIS Quarterly Review, June 2018

German translation of the Annual Economic Report 2018 of the BIS, June 2018 - Die politischen Entscheidungsträger können dem gegenwärtigen Wirtschaftsaufschwung eine nachhaltige Basis verleihen, schreibt die BIZ in ihrem Wirtschaftsbericht. Dazu sollten sie strukturpolitische Maßnahmen ergreifen, mit Blick auf künftige Risiken wieder für größeren Handlungsspielraum in der Geld- und Fiskalpolitik sorgen und die Umsetzung der Regulierungsreformen vorantreiben. ...

German translation of the BIS press release about the BIS Quarterly Review, September 2018

German translation of the BIS Quarterly Review, September 2018

German translation of the BIS press release about the BIS Quarterly Review, December 2018

German translation of the BIS Quarterly Review, December 2018

German translation of the BIS Quarterly Review, March 2019

German translation of the BIS press release about the BIS Quarterly Review, March 2019

German translation of the BIS press release on the presentation of the Annual Economic Report 2019, 30 June 2019.

WELL, I don't know about you but my central heating has already been on twice in September and although I don't need much of an excuse to delve into the big heavy reds, two heating days is my current one.

RIESLING is perhaps the most famous, unappreciated, abused and generally misunderstood wine of all time and it’s probably also the one most of us cut our teeth on many years ago.

OK, most of us will never be able to enjoy the first growths from Bordeaux, but you don't have to spend a grand on a bottle to realise that when it comes to cabernet and merlot blends, Bordeaux is still the region to beat.

IT would appear that nostalgia is in the air this season as I've never fielded more questions about sherry in my 25 years in the wine game. If that translates into sales there will be some very happy Spaniards in Jerez this year and it’s about time.

GO ON, be honest, when was the last time you picked a bottle of Australian cabernet off the shelf? Cab merlot or cab shiraz perhaps but cabernet on its own seems to have fallen out of favour with the public these days but it’s such a shame as it really is the undisputed King of Australian wines.

Some things just instinctively go together, brandy and a good cigar, vintage port and blue cheese, then there's Chardonnay and oak barrels!

WHETHER through shrewd planning, good fortune or a bit of both, Edinburgh managed to complete the bulk of their business for next season before rugby came grinding to a halt. When precisely play resumes is, of course, unknown and out of their control, but they are at least confident that they will be in good shape to hit the ground running.

Edinburgh Rugby have announced the signing of three Scottish qualified youngsters in Nathan Chamberlain, Ben Muncaster and Dan Gamble on academy deals which will turn into full-time contracts next summer, and head coach Richard Cockerill has promised that three current academy prospects in Rory Darge, Connor Boyle and Sam Grahamslaw will soon be elevated to the senior squad ahead of next season.

Speak to anyone involved in Scottish football and they'll tell you that the current crop of Under-16 players coming through the academy systems are among the best they've seen.

I TOOK a bottle of Cot home the other day to share with a friend and his reaction got me thinking about the subject matter for this week's column, so here’s to wines and blends you may not have come across.

IF you’re under 40, or as I like to call it these days, "pre-arthritis", you probably won’t remember the dark days of malbec when you had a 50-50 chance of opening something that would be as rough as sandpaper.

CHRISTMAS is coming, the goose is getting fat and there's no wine as flexible with the varied foods of the season than rioja, so let’s take a seasonal look at our favourite Spaniard.

WELL, here we go again, folks. It’s time to take a look at the perfect wines for Christmas so sit back, relax and let’s go down the rabbit hole together.

IF you’re anything like me, these weird alcohol-free January fads are to be avoided so let's raise a glass to a guilt-free month and kick it off with a look at something clean and refreshing to wash the season of excess away.

IT only seems like yesterday that we were in the season to be jolly and, all of a sudden, romance is in the air. Before we know it, we’ll all be rolling eggs down a hill but, in the meantime, I guess we should take a look at rose, the wines of love.

ONE of the trying things about being a drinks columnist is the number of wines I have to taste in order to write this Shakespearian text for you guys. Products have to be really special to stand out from the crowd and, thankfully, they occasionally still do.