A5000386197- Multi-Criteria Decision Making
- Data Management and Algorithms
- Marine and coastal plant biology
- Advanced Statistical Methods and Models
- Statistical Methods and Inference
- HIV/AIDS drug development and treatment
- Marine and fisheries research
- Rough Sets and Fuzzy Logic
- Marine Bivalve and Aquaculture Studies
- Statistical Methods and Bayesian Inference
- HIV Research and Treatment
- Bayesian Modeling and Causal Inference
- Cephalopods and Marine Biology
- Hepatitis C virus research
- Optimal Experimental Design Methods
- HIV/AIDS Research and Interventions
- Data Mining Algorithms and Applications
- Coastal wetland ecosystem dynamics
- Marine Biology and Ecology Research
- Coral and Marine Ecosystems Studies
- Music and Audio Processing
- Bayesian Methods and Mixture Models
- Multiple Sclerosis Research Studies
- Sensory Analysis and Statistical Methods
- Music Technology and Sound Studies
University of Palermo
2015-2024
University of Palermo
2018-2020
University of Rome Tor Vergata
2020
University of Milan
2005-2019
Ospedale Papa Giovanni XXIII
2019
Ospedale San Paolo
2015-2018
Università Cattolica del Sacro Cuore
2015-2017
Istituto Nazionale di Statistica
2016
Istituto Nazionale per le Malattie Infettive Lazzaro Spallanzani
2006
The role of the neutrophil-to-lymphocyte ratio (NLR) peripheral blood has been investigated in relation to several autoimmune diseases. Limited studies have addressed significance NLR terms being a marker disease activity multiple sclerosis (MS).This is retrospective study relapsing-remitting MS patients (RRMS) admitted tertiary center Catania, Italy during period 1 January 31 December 2018. aim present was investigate reflecting cohort early diagnosed RRMS patients.Among total sample 132...
La finalità del nostro lavoro è di valutare le caratteristiche risonanza magnetica (RM) tipiche dei tumori parotidei maligni e benigni. Questo studio retrospettivo si basa sulla valutazione esami RM pre-chirurgici 94 pazienti con parotidei. I risultati istologici erano disponibili in tutti i casi; abbiamo analizzato 69 lesioni benigne (73%) 25 maligne (27%): 44 adenomi pleomorfi, 18 Warthin, 7 benigni diverso istotipo, 6 carcinomi squamocellulari, 3 ex-adenomi 2 mucoepidermoidi, 1 tumore...
Plastic pollution has been extensively documented in the marine food web, but targeted studies focusing on relationship between microplastic ingestion and fish trophic niches are still limited. In this study we investigated frequency of occurrence abundance micro- mesoplastics (MMPs) eight species with different feeding habits from western Mediterranean Sea. Stable isotope analysis (δ13C δ15N) was used to describe niche its metrics for each species. A total 139 plastic items were found 98...
We propose an iterative algorithm to select the smoothing parameters in additive quantile regression, wherein functional forms of covariate effects are unspecified and expressed via B-spline bases with difference penalties on spline coefficients. The proposed relies viewing penalized coefficients as random from symmetric Laplace distribution, it turns out be very efficient particularly attractive multiple smooth terms. Through simulations we compare our proposal some alternative approaches,...
Abstract The relationship between flowering and growth performance of Posidonia oceanica (L.) Delile in meadows distributed along the south‐eastern coast Sicily (Italy) was investigated by means a statistical model (generalized linear mixed model) combined with lepidochronological analysis. Over 28‐year period, 67 floral stalk remains were observed. highest index recorded year 1998 (10.1%) Inflorescence Frequency per age showed clear decrease corresponding to 15‐year‐old shoots. sexual...
The statistical analysis of annual growth Posidonia oceanica is traditionally carried out through Gaussian linear models applied to untransformed, or log-transformed, data. In this paper, we claim that there are good reasons for re-considering established practice, since real data on often violate the assumptions models, and show class Generalized Linear Models (GLMs) represents a useful alternative handling such violations. By analyzing Sicily PosiData-1, dataset P. gathered in period...
We present an estimating framework for quantile regression where the usual L 1-norm objective function is replaced by its smooth parametric approximation. An exact path-following algorithm derived, leading to well-known 'basic' solutions interpolating exactly a number of observations equal parameters being estimated. discuss briefly possible practical implications proposed approach, such as early stopping large data sets, confidence intervals, and additional topics future research.
Abstract Ranking and rating methods for preference data result in a different underlying organization of that can lead to manifold probabilistic approaches modelling. As an alternative existing approaches, two new flexible probability distributions are discussed as modelling framework: the Discrete Beta Shifted Beta-Binomial . Through presentation three real-world examples, we demonstrate practical utility these distributions. These illustrative cases show how novel effectively address...
Preference data represent a particular type of ranking where group people give their preferences over set alternatives. The traditional metrics between rankings do not take into account the importance swapping elements similar among them (element weights) or belonging to top (or bottom) an ordering (position weights). Following structure τ x proposed by Emond and Mason class weighted Kemeny–Snell distances, proper rank correlation coefficient is defined for measuring position without ties....
Digital music distribution is increasingly powered by automated mechanisms that continuously capture, sort and analyze large amounts of Web-based data. This paper deals with the management songs audio features from a statistical point view. In particular, it explores data catching enabled Spotify Web API suggests tools for analysis these Special attention devoted to popularity Beta model, including random effects, proposed in order give first answer questions like: which are determinants...
An efficient protocol to induce shoot buds regeneration in Citrus clementina cultivars (‘Monreal’, ‘SRA 63’ and 64’) by direct orgaNogenesis has been developed using cotyledons as explants. Cotyledons transversely cut three segments entire ones were cultured on Murashige Skoog (1962) solidified medium containing vitamins, 500 mg l-1 malt extract, 50 g sucrose supplemented with different concentrations of BAP (8.8, 13.2 17.6 μM). In all the showed more morphogenic potential than after 60...
Abstract Preference data are a particular type of ranking where some subjects (voters, judges,...) express their preferences over set alternatives (items). In most real life cases, items receive the same preference by judge, thus giving rise to with ties. An important issue involving rankings concerns aggregation into “consensus”. The purpose this paper is investigate consensus between ties, taking account importance swapping elements belonging top (or bottom) ordering (position weights). By...