Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Jordi Valero"'
Publikováno v:
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Universitat Politècnica de Catalunya (UPC)
The Zipf distribution attracts considerable attention because it helps describe data from natural as well as man-made systems. Nevertheless, in most of the cases the Zipf is only appropriate to fit data in the upper tail. This is why it is important
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb55b01b6ae3e1994978588877e5b709
https://hdl.handle.net/2117/369610
https://hdl.handle.net/2117/369610
Publikováno v:
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Universitat Politècnica de Catalunya (UPC)
In this paper, we extend the Zipf distribution by means of the Randomly Stopped Extreme mechanism; we establish the conditions under which the maximum and minimum families of distributions intersect in the original family; and we demonstrate how to g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ee4e654fb34ca47da518215043a4b04
https://doi.org/10.1007/s10687-021-00410-w
https://doi.org/10.1007/s10687-021-00410-w
Publikováno v:
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Universitat Politècnica de Catalunya (UPC)
Under the Zipf Distribution, the frequency of a value is a power function of its size. Thus, when plotting frequencies versus size in log–log scale of data following that distribution, one obtains a straight line. The Zipf has been assumed to be ap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::89e263e76cf5c3330aee20218ab148fc
Autor:
Joaquín Pastor, Francisco Javier Sorribas, Jordi Valero, Soledad Verdejo-Lucas, J. Pons, C. Ornat
Publikováno v:
Plant disease. 92(3)
Sorribas, F. J., Verdejo-Lucas, S., Pastor, J., Ornat, C., Pons, J., and Valero, J. 2008. Population densities of Tylenchulus semipenetrans related to physicochemical properties of soil and yield of clementine mandarin in Spain. Plant Dis. 92:445-450
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c2fa227f34d339c55ad7005deaf014da
https://pubmed.ncbi.nlm.nih.gov/30769676
https://pubmed.ncbi.nlm.nih.gov/30769676
Publikováno v:
Statistics & Probability Letters. 92:89-94
An algorithm is proposed that, starting from the probability generating function of a left-truncation at k of a mixed Poisson distribution, recovers the first k + 1 probabilities of the untruncated distribution, without the need of eliciting what the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::658fbbaba87bc1272259fb8e4ab06b6f
https://doi.org/10.1016/j.spl.2014.05.008
https://doi.org/10.1016/j.spl.2014.05.008
Publikováno v:
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Recercat. Dipósit de la Recerca de Catalunya
instname
Universitat Politècnica de Catalunya (UPC)
Recercat. Dipósit de la Recerca de Catalunya
instname
Maceda (1948) characterized the mixed Poisson distributions that are Poisson-stopped-sum distributions based on the mixing distribution. In an alternative characterization of the same set of distributions here the Poisson-stopped-sum distributions th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a6a592e2df09b519478bed1a7882671
https://doi.org/10.1016/j.spl.2013.04.009
https://doi.org/10.1016/j.spl.2013.04.009
Publikováno v:
Scientia Horticulturae. 152:74-79
Despite the expanding market for ‘calcots’, the second-year resprouts of the ‘Blanca Tardana de Lleida’ onion landrace, this product is still obtained from traditional populations. During a program devoted to the obtainment of improved variet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1872d0bad9a2fc64a2e223fe9a10dab6
https://doi.org/10.1016/j.scienta.2013.01.011
https://doi.org/10.1016/j.scienta.2013.01.011
Autor:
Manuel Bonmatí, Carolina Fernández, Alberto Stchiegel, C. Ornat, Francisco Javier Sorribas, Jordi Valero, Angela Sarro, Ariadna Giné
Publikováno v:
BioControl. 58:407-416
A survey was conducted to assess the biodiversity and frequency of infection of fungal egg parasites of Meloidogyne spp. and relate results to soil properties in organic and integrated vegetable produc- tion in Spain. Forty sites were sampled at the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8c3bf3b1f3f19ab70ab60818d9db08a
https://doi.org/10.1007/s10526-012-9495-6
https://doi.org/10.1007/s10526-012-9495-6
Publikováno v:
Recercat. Dipósit de la Recerca de Catalunya
instname
instname
It has been argued that by truncating the sample space of the negative binomial and of the inverse Gaussian-Poisson mixture models at zero, one is allowed to extend the parameter space of the model. Here that is proved to be the case for the more gen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4833cb4f0ec82f19e4a988430ec80551
https://doi.org/10.1007/s11009-012-9277-8
https://doi.org/10.1007/s11009-012-9277-8
Publikováno v:
Advances in Applied Probability. 42:1013-1027
The distributions that result from zero-truncating mixed Poisson (ZTMP) distributions and those obtained from mixing zero-truncated Poisson (MZTP) distributions are characterised based on their probability generating functions. One consequence is tha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a58c9c7dd4fe04404a9059419a845c8
https://doi.org/10.1239/aap/1293113149
https://doi.org/10.1239/aap/1293113149