GRASPA Working Papers

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Recent developments of functional kriging

The continuous improvement of technology have allowed the high frequency recording and storing of data measurements. Considering those data for each observation not any more as vector of points seen as fnite set of points but as functions seen as infinite set of points and applying statistical techniques on it, is the core concept of functional data analysis. So several functional versions of a wide range of classical statistical tools are being proposed and developed since the rise of...

Assessing the role of the spatial scale in the analysis of lagoon biodiversity. A case-study on the macrobenthic fauna of the Po River Delta

The analysis of benthic assemblages is a valuable tool to describe the ecological status of transitional water ecosystems, but species are extremely sensitive and respond to both microhabitat and seasonal differences. The identification of changes in the composition of the macrobenthic community in specific microhabitats can then be used as an "early warning" for environmental changes which may affect the economic importance of lagoons, through their provision of ecosystem services. From...

Multivariate hidden dynamic geostatistical model for analysing and mapping air quality data in Apulia, Italy

In this work we propose the multivariate extension of a spatio-temporal model known in the literature and we deduce its maximum likelihood estimator based on the EM algorithm. An illustrating example concerns the joint modeling of air quality and meteorology in Apulia region, Italy. In particular a 8-variate model is fitted for daily particulate matters (PM10) and nitrogen dioxides (NO2) concentrations and six non colocated meteorological variables, without the need of preliminary data inter...

Pairwise likelihood inference in spatial generalized linear mixed models

EM estimation of a multivariate space-time data fusion model with varying coefficients

Scopri
Tipologia
  • GRASPA WP by year - Annate della serie editoriale GRASPA WP50
  • 1.8.04 Working paper monografico in Serie/Collana7
Autore
  • FASSO', Alessandro16
  • FINAZZI, Francesco5
  • CAMELETTI, Michela3
  • NEGRI, Ilia2
  • NICOLIS, Orietta2
  • FABRIZI, Enrico1
  • IGNACCOLO, ROSARIA1
  • NDONGO, Ferdinand Bertrand1
  • VIVIANO, Lorena Carmen Maria1
Data di pubblicazione
  • 2010 - 201615
  • 2000 - 200935
Editore
  • Università degli studi di Bergamo49
  • Università degli Studi di Bergamo1
Serie
  • GRASPA WORKING PAPERS50
Keyword
  • B-spline2
  • EM algorithm2
  • particulate matters2
  • aerosol optical thickness1
  • AIC1
  • Air Pollution1
  • Air quality indicators1
  • Air quality indices1
  • Ambient exposure and risk1
  • Ambrosia dumosa1
Lingua
  • eng43
  • ita6
  • frs1
Accesso al fulltext
  • open50
Settore disciplinare
  • Settore SECS-S/01 - Statistica19
  • Settore MAT/06 - Probabilita' e Statistica Matematica3
  • Settore SECS-S/02 - Statistica per La Ricerca Sperimentale e Tecnologica1
Appartenenza
  • Dipartimento di Scienze Economiche17
  • Dipartimento di Ingegneria e Scienze Applicate2
  • Dipartimento di Lingue, Letterature e Culture Straniere2