Anar al contingut (clic a Intro)
UdG Home UdG Home
UdG 30 anys

Departament d'Informàtica, Matemàtica Aplicada i Estadística

Online CoDa-Day 2021 (Thursday June 17, 2021, 14h-17h )

Online only event. CoDaWork 2021, has been postponed to 2022 due to the Covid pandemics

Because, the next CoDa Association conference, CoDaWork 2021, has been postponed to 2022 due to the Covid pandemics, the Toulouse team has decided to organize for the first time an online only event in 2021. It will consist in five invited talks and will take place on Thursday June 17, 2021, 14h-17h  (CEST: UTC/GMT +2h). Sessions of this event will be recorded. The recordings will be available on this website.

One of the goals is to foster the interest in the study of compositional data and their applications, to offer a forum of discussion for people concerned with the statistical treatment and modeling of compositional data or other constrained data sets, and the interpretation of models or applications involving them. Compositional data are typically defined as vectors of positive components representing parts of a whole which carry relative information. Frequently, these compositional vectors have constant sum, usually 100% or 1. These conditions render most classical statistical techniques incoherent on compositions, as they were devised for random variables with the real space as sample space. Aitchison introduced the log-ratio approach to analyze compositional data back in the eighties. His solution was based on transforming the data vector with some log-ratio transformations and applying classical techniques to the scores so obtained. This became the foundation of modern compositional data analysis, nowadays based on an appropriate geometric structure for the simplex and an appropriate representation of the sample space of compositional vectors. 

Examples of application abound in different fields of sciences: chemistry, earth and environmental sciences, life sciences and medicine with genome and microbiome research, economy, social statistics and social sciences. The following themes have been selected for the five invited talks of 2021 online CoDa-Day: geosciences, social sciences, microbiome, time-use, and theory.

Notícies relacionades

Escull quins tipus de galetes acceptes que el web de la Universitat de Girona pugui guardar en el teu navegador.

Les imprescindibles per facilitar la vostra connexió. No hi ha opció d'inhabilitar-les, atès que són les necessàries pel funcionament del lloc web.

Permeten recordar les vostres opcions (per exemple llengua o regió des de la qual accediu), per tal de proporcionar-vos serveis avançats.

Proporcionen informació estadística i permeten millorar els serveis. Utilitzem cookies de Google Analytics que podeu desactivar instal·lant-vos aquest plugin.

Per a oferir continguts publicitaris relacionats amb els interessos de l'usuari, bé directament, bé per mitjà de tercers (“adservers”). Cal activar-les si vols veure els vídeos de Youtube incrustats en el web de la Universitat de Girona.