Search results for " ASSOCIATION"
showing 10 items of 996 documents
A data association approach to detect and organize people in personal photo collections
2011
In this paper we present a method to automatically segment a photo sequence in groups containing the same persons. Many methods in literature accom- plish to this task by adopting clustering techniques. We model the problem as the search for probable associations between faces detected in subsequent photos con- sidering the mutual exclusivity constraint: a person can not be in a photo two times, nor two faces in the same photo can be assigned to the same group. Associations have been found considering face and clothing descriptions. In particular, a two level architecture has been adopted: at the first level, associations are computed within meaningful temporal windows (situations); at the …
A Study on Classification Methods Applied to Sentiment Analysis
2013
Sentiment analysis is a new area of research in data mining that concerns the detection of opinions and/or sentiments in texts. This work focuses on the application and the comparison of three classification techniques over a text corpus composed of reviews of commercial products in order to detect opinions about them. The chosen domain is about "perfumes", and user opinions composing the corpus are written in Italian language. The proposed approach is completely data-driven: a Term Frequency / Inverse Document Frequency (TFIDF) terms selection procedure has been applied in order to make computation more efficient, to improve the classification results and to manage some issues related to t…
La lunga marcia verso la libertà sindacale del “comparto sicurezza”
2020
Il saggio analizza l’evoluzione dei diritti sindacali nel “comparto sicurezza” (forze armate e di polizia) all’insegna di una prospettiva multilivello: dopo una disamina delle fonti sovranazionali (convenzioni OIL, Cedu e Carta Sociale Europea) e del dettato costituzionale, la ricerca si sofferma sulla libertà sindacale di militari e poliziotti alla luce del quadro normativo e giurisprudenziale di riferimento. Nonostante dal finire degli anni ’70 l’ordinamento militare e quello della Polizia di Stato si siano progressivamente aperti ai diritti collettivi, permangono numerosi profili di criticità, come il regime di separatezza sindacale, il divieto di sciopero e la mancata emanazione di una …
The Reception of Women’s and Gender History: A Perspective from the Italian Association of Women Historians
2020
The core of the contribution is the inescapable interplay between what prompts and characerised research, the institutionalisation of a discipline and the conditions of the production and validation of historical knowledge, with a particular attention devoted to women's and gender history in italian academy.
Genetic variation in human leukocyte antigen and susceptibility to acute myeloid leukemia.
2015
In this issue of Acta Haematologica, Authors report the association between the Human Major Histocompatibility complex (MHC) HLA-C3 and Acute Myeloid Leukemia (AML) in Korean population, confirming previous studies on association between HLA-C and AML.
Systematic review by meta-analyses on the possible role of TNF-alpha polymorphisms in association with Alzheimer's disease.
2009
It has been hypothesized that polymorphisms of Tumor Necrosis Factor (TNF)-alpha gene affect the risk of developing Alzheimer's disease (AD). However, results of different studies are often inconsistent. Our aim was to investigate by meta-analysis the association of the common polymorphisms comprehensively defining the genetic variability of the TNF-alpha gene with AD risk. Hence, the results being stated are of a meta-analysis across studies, and that this meta-analysis does not invalidate the results of the individual studies previously performed. Seventeen studies that investigated the association between 5 TNF-alpha polymorphisms (-850, -308, -863, -238, and -1031) and AD were retrieved…
Liver and Statins: A Critical Appraisal of the Evidence.
2019
Adverse drug reactions (ADRs) represent an important cause of morbidity and mortality worldwide. Statins are a class of drugs whose main adverse effects are drug-induced liver injury (DILI) and myopathy. Some of these may be predictable, due to their pharmacokinetic and pharmacodynamic properties, while others, unfortunately, are idiosyncratic. Genetic factors may also influence patient susceptibility to DILI and myopathy in the case of statins. This review will first discuss the role of statins in cardiovascular disease treatment and prevention and the underlying mechanisms of action. Furthermore, to explore the susceptibility of statin-induced adverse events such as myopathy and hepatoto…
Azione antalgica di Hydrogel nell'orbitopatia basedowiana
2007
La terapia dell'orbitopatia,nella fase acuta,si basa oltre che sulla correzione della turba endocrinologica,sulla protezione della cornea e sull'uso dei corticosteroidi ad alto dosaggio o di farmaci immunosoppressori o, in alternativa,sulla radioterapia orbitaria.Per attenuare la sintomatologia dolorosa,frequente nella fase acuta e che può inficiare la qualità della vita,data la componente flogistica,abbiamo voluto valutare gli effetti di una terapia antalgica mediante appliocazione sulla superficie palpebrale di un gel chirurgico criogenico decongestinante ( a contenuto di estratto di ananas più acido betaglicirretico),ad oggi utilizzato con risultati soddisfacenti in soggetti sottoposti a…
Testing for local structure in spatiotemporal point pattern data
2017
The detection of clustering structure in a point pattern is one of the main focuses of attention in spatiotemporal data mining. Indeed, statistical tools for clustering detection and identification of individual events belonging to clusters are welcome in epidemiology and seismology. Local second-order characteristics provide information on how an event relates to nearby events. In this work, we extend local indicators of spatial association (known as LISA functions) to the spatiotemporal context (which will be then called LISTA functions). These functions are then used to build local tests of clustering to analyse differences in local spatiotemporal structures. We present a simulation stud…
The genome-wide structure of two economically important indigenous Sicilian cattle breeds
2014
Genomic technologies, such as highthroughput genotyping based on SNP arrays, provided background information concerning genome structure in domestic animals. The aim of this work was to investigate the genetic structure, the genome-wide estimates of inbreeding, coancestry, effective population size (Ne), and the patterns of linkage disequilibrium (LD) in 2 economically important Sicilian local cattle breeds, Cinisara (CIN) and Modicana (MOD), using the Illumina Bovine SNP50K v2 BeadChip. To understand the genetic relationship and to place both Sicilian breeds in a global context, genotypes from 134 other domesticated bovid breeds were used. Principal component analysis showed that the Sicil…