Search results for "report"

showing 10 items of 2364 documents

Rateless Codes Performance Analysis in Correlated Channel Model for GEO Free Space Optics Downlinks

2012

Settore ING-INF/03 - TelecomunicazioniFree Space Optics (FSO) technologies for satellite communications offer several advantages: wide bandwidth high rate capability immunity to electromagnetic interference and small equipment size. Thus they are suitable for inter-satellite links deep space communications and also for high data rate ground-to-satellite/satellite-to-ground communications. Nevertheless FSO links suffer impairments that cause power signal degradation at the receiver. Scattering and absorption cause power signal attenuations predictable by suitable deterministic models. Optical turbulence causes random irradiance fluctuations which can generate signal fading events and can thereby only be predicted by statistical models. Attenuation and fading events can corrupt FSO links and so it would be recommended to add mitigation error codes on the communication link. FSO channel can be described as an erasure channel: fading events can cause erasure errors. We have identified in rateless codes (RCs) a suitable solution to be employed in FSO links. RCs do not need feedback and they add a redundant coding on the source data that allows the receiver to recover the whole payload despite erasure errors. We implemented two different of rateless codes: Luby Transform (LT) and Raptor. We analyzed their performances on a simulated turbulent GEO FSO downlink (1 Gbps - OOK modulation) at a 106 μm wavelength and for different values of zenith angles. Assuming a plane-wave propagation and employing Hufnagel-Valley we modeled the downlink using: 1) a temporal correlated channel model based on Gamma-Gamma probability distribution and 2) an irradiance covariance function that we converted on a time function using Taylor frozen eddies hypothesis. Our new channel model is able to simulate irradiance fluctuations at different turbulence conditions as it will be shown in the full paper. We will also report performance results of LT and Raptor codes at overhead range varying between 0 and 50% and for different values of source packets.Settore ING-INF/01 - Elettronica
researchProduct

An ontology-based retrieval system for mammographic reports

2015

In healthcare domain it can be useful to compare unstructured free-text clinical reports in order to enable the search for similar and/or relevant clinical cases. In data mining and text analysis tasks, the cosine similarity is usually used for texts comparison purposes. It is usually performed by computing the standard document vector cosine similarity between the two vectors representing the report pair under analysis. In this paper a novel system based on text pre-processing techniques and a modelled medical knowledge, using an improved radiological ontology, is proposed. Medical terms organized in a hierarchical tree can assess semantic similarity relationships between unstructured repo…

Settore ING-INF/05 - Sistemi Di Elaborazione Delle InformazioniInformation retrievalbusiness.industryComputer scienceOntology-based data integrationCosine similarityOntology (information science)SemanticsDomain (software engineering)Tree (data structure)Text miningMammography Reports Information Retrieval OntologySemantic similarityOntologyUpper ontologybusiness2015 IEEE Symposium on Computers and Communication (ISCC)
researchProduct

Bayesian Network Based Classification of Mammography Structured Reports

2013

In modern medical domain, documents are created directly in electronic form and stored on huge databases containing documents, text in integral form and images. Retrieving right informations from these servers is challenging and, sometimes, this is very time consuming. Current medical technology do not provide a smart methodology classification of such documents based on their content. In this work the radiological structured reports are analysed classified and assigning an appropriate label. The text classifier is used to label a mammographic structured report. The experimental data are real clinical report coming from a hospital server. Analysing the structured report content, the classif…

Settore ING-INF/05 - Sistemi Di Elaborazione Delle InformazioniInformation retrievalmedicine.diagnostic_testStructured support vector machineComputer scienceExperimental dataBayesian networkReport ClassificationBayes' theoremComputingMethodologies_PATTERNRECOGNITIONRobustness (computer science)ServerBayesian NetworkmedicineMammographyClassifier (UML)Mammography
researchProduct

Open government in Italy and in the Sicilian Region

2018

This short essay collects contributions and documentation relating to Rapporto sull’Open Government in Sicilia 2015 (the second Report on Open Government in Sicily), presented in March 31th, 2015 in the DEMS department lecture hall at the University of Palermo. It is the result of the research carried out in the course compendium of European Administrative Law of the academic year of 2014-2015 and of the master’s degree in Science of administration and complex organizations. The introductory essay was then presented in the form of a report 2014 to the Roundtable on Administrative transparency after the Legislative Decree no. 33/2013, which was organized at the Faculty of Law, University of …

Settore IUS/09 - Istituzioni Di Diritto PubblicoSettore IUS/10 - Diritto AmministrativoOpen Government second ReportOpen Government Antonio Romano Tassone Sicilian Region
researchProduct

Correctness of judicial information and impartiality of the judge: the distortions of the media criminal trial

2022

This analysis, which focuses on the difficult relationship between criminal justice and judicial information, examines only some of the most controversial aspects, starting with an undisputed premise, namely that over time the function of communication in judicial matters has changed, evolving from informative to formative. I will reflect on the hiatus between the real justice as exercised in courtrooms and justice perceived by the public through media narratives, paying particular attention to the distortions of the so-called media trial and the resulting bias in the exercise of judicial power. Finally, we will consider possible solutions, which, in a perspective of striking a balance betw…

Settore IUS/16 - Diritto Processuale Penaleair trial judicial misinformation fake news judicial reporting media criminal trial presumption of innocence judicial impartiality.
researchProduct

Obsidian from the Neolithic Layers of “Grotta di San Michele Arcangelo di Saracena” (Cosenza), Italy. A Preliminary Report

2021

Abstract The paper presents the results obtained by techno-typological analysis of a lithic assemblage from the Neolithic layers of Grotta San Michele Arcangelo di Saracena (Cosenza) together with the results of micro-wear analysis obtained from a preliminary selection of obsidian artifacts with different provenances distinguished by pXRF analysis. The site provides one of the best preserved Neolithic sequences in the area, from the earliest Impressed Wares (or Impresse Arcaiche) (early sixth millennium BC) to the Spatarella pottery style (end fifth – early fourth millennium BC). Along the Neolithic sequence, it is possible to observe some major changes within lithic resources management. I…

Settore L-ANT/01 - Preistoria E Protostoria010506 paleontologyArcheology060102 archaeologySettore L-ANT/09 - Topografia Antica06 humanities and the artsConservation01 natural sciencesArchaeologyobsidianEducationArchaeologyneolithicPreliminary reportmicro-wear analysislithic studies0601 history and archaeologyObsidian Neolithic Lithic Studies Micro-wear analysisCC1-960Geology0105 earth and related environmental sciencesOpen Archaeology
researchProduct

Il corpo comunicativo. Fotografia come narrazione in Dorothea Lange

2022

In this article I explore Lange's life and work through the lens of her illness

Settore L-ART/06 - Cinema Fotografia E TelevisionePhotography art FSA Dorothea Lange reportage autopathography
researchProduct

Brain Damage

2020

Brain Damage. Un manifesto di psicofotografia dove ciò che si vede riesce a comunicare anche ciò che non si può percepire perché nascosto nei meandri della mente. Quattro progetti, quattro capitoli, “Craving”, “Doppelgänger”, “Lost in the K-Hole”, “Rorschach”, incentrati su differenti e autonome tematiche psicologiche, connesse l’una all’altra dalla presenza costante di tre elementi fondamentali: la mancanza, il desiderio, la sofferenza. Ciò che l’autore, durante i tanti anni di ricerca e lavoro, non ha potuto registrare istantaneamente, come nel caso di “Craving” e “Rorschach”, lo ha prima immaginato e poi ritratto alla maniera di “Doppelgänger” e “Lost in the K-Hole”. Non solo reportage, …

Settore L-ART/06 - Cinema Fotografia E TelevisionePsicofotografia coscienza immaginale reportage staged photography
researchProduct

Brain Damage. Psicofotografia come coscienza immaginale

2020

BRAIN DAMAGE è formato da quattro progetti; quattro capitoli, “Craving”, “Doppelgänger”, “Lost in the K-Hole”, “Rorschach”, incentrati su differenti e autonome tematiche psicologiche, connesse l’una all’altra dalla presenza costante di tre elementi fondamentali: la mancanza, il desiderio, la sofferenza. Ciò che l’autore durante i tanti anni di ricerca e lavoro non ha potuto registrare istantaneamente, come nel caso di “Craving” e “Rorschach”, lo ha prima immaginato e poi ritratto alla maniera di “Doppelgänger” e “Lost in the K-Hole”. Non solo reportage, dunque, compongono il libro, ma anche regie. Per fotografare i deliri della mente, pur restando incredibilmente ancorati alla realtà, ci vu…

Settore L-ART/06 - Cinema Fotografia E TelevisionePsicofotografia reportage staged photography ipermodernità
researchProduct

Manuel Vázquez Montalbán y sus heterónimos en la revistra "Triunfo"

2022

The volume collects and analyzes the collaborations of Manuel Vázquez Montalbán in the magazine Triunfo, from the opinion article, to the report, from the short story to the comic strip, focusing on the use of heteronomous words. Following the path of the genre, the style and the narrative perspectives of the different contributions, the fertile osmosis between literary discourse and journalistic discourse is thus verified. The weekly appeared in 1946 in Valencia, playing a role of theater and film information and criticism. Since its transfer to Madrid in 1948, the magazine expanded its interests, inserting articles on domestic and foreign policy, until, in the 1960s, it became the intelle…

Settore L-LIN/05 - Letteratura SpagnolaEl volumen recoge y analiza las colaboraciones de Manuel Vázquez Montalbán en la revista Triunfo desde el artículo de opinión al reportaje del cuento a la historieta centrándose en el uso de heterónomos. Siguiendo el camino del género el estilo y las perspectivas narrativas de las distintas aportaciones se constata así la fecunda ósmosis entre discurso literario y discurso periodístico. El semanario apareció en 1946 en Valencia desempeñando un papel de información y crítica teatral y cinematográfica. Desde su traslado a Madrid en 1948 la revista fue ampliando sus intereses insertando artículos sobre política interior y exterior hasta que en la década de 1960 se convirtió en el referente intelectual de la España antifranquista recogiendo las firmas de los intelectuales más incisivos de izquierda. En 1980 la periodicidad pasó a ser mensual hasta su último número en agosto de 1982. El intelectual catalán comienza a colaborar con Triunfo en 1969 año en el que verá la luz el célebre reportaje de cinco números Crónica sentimental de España y mientras tanto la escritura de Vázquez Montalbán adquiere una fisonomía particular en la que el discurso narrativo e incluso poético se injertan en el tejido informático del periódico. Además acompaña su actividad la creación de múltiples heterónomos con diferentes estilos narrativos y perspectivas. Así después de "Jack el Decorador" creado para la revista Hogares Modernos es precisamente en Triunfo donde aparecen las firmas de “Luis Ávila” "Sixto Cámara" "Manolo V el Empecinado" "Luis Dávila" "Menelao el Aeropagita" "Baronesa D´Orcy”. Mientras tanto la función osmótica entre la escritura del intelectual y el discurso periodístico ligada a la macrotextualidad de la revista cobra cada vez más importancia.
researchProduct