Search results for "Formations"

showing 10 items of 680 documents

2014

Codebook is an effective image representation method. By clustering in local image descriptors, a codebook is shown to be a distinctive image feature and widely applied in object classification. In almost all existing works on codebooks, the building of the visual vocabulary follows a basic routine, that is, extracting local image descriptors and clustering with a user-designated number of clusters. The problem with this routine lies in that building a codebook for each single dataset is not efficient. In order to deal with this problem, we investigate the influence of vocabulary sizes on classification performance and vocabulary universality with the kNN classifier. Experimental results in…

Vocabularybusiness.industryApplied Mathematicsmedia_common.quotation_subjectInformationSystems_INFORMATIONSTORAGEANDRETRIEVALVisual descriptorsComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISIONCodebookPattern recognitionKnn classifierUniversality (dynamical systems)ComputingMethodologies_PATTERNRECOGNITIONImage representationArtificial intelligenceCluster analysisbusinessAnalysisMathematicsmedia_commonAbstract and Applied Analysis
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Extended Poster Abstract: Open Source Solution for Massive Map Sheet Georeferencing Tasks for Digital Archiving

2010

Scanned maps need to be georeferenced, to be useful in a GIS environment for data extraction (vectorization), web publishing or spatially-aware archiving. Widely used software solutions with georeferencing functionality are designed to suit a universal scenario for georeferencing many different kinds of data sources. Such general nature also makes them very time-consuming for georeferencing a large number of map sheets to a known grid. This work presents an alternative scenario for georeferencing large numbers of map sheets in a time-efficient manner and implements the approach as the MapSheetAutoGeoRef plug-in for the freely available open source Quantum GIS [1].

Web publishingDatabaseComputer sciencebusiness.industryInformationSystems_DATABASEMANAGEMENTcomputer.software_genreGridOpen sourceSoftwareData extractionGeoreferenceImage tracingbusinesscomputer
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Towards Graphical Query Notation for Semantic Databases

2015

We describe a notation and a tool for schema-enabled visual/diagrammatic creation of SPARQL queries over RDF databases. The notation and the tool support both the standard basic query pattern comprising a main query class and possibly linked condition classes and means for aggregate query definition and placing conditions over aggregates including also aggregation of aggregate results. We discuss the applicability of the tool for ad-hoc query formulation in practical use cases.

Web search queryInformation retrievalComputer scienceInformationSystems_INFORMATIONSTORAGEANDRETRIEVALAggregate (data warehouse)InformationSystems_DATABASEMANAGEMENTcomputer.file_formatQuery languageQuery optimizationNotationSPARQLSargableQuery by Examplecomputercomputer.programming_language
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Bodily Transformations and Textual ‘Rape’ in Will Self’s Cock & Bull (1992)

2009

Will SelfBritish Postmodern FictionbodytransformationsSettore L-LIN/10 - Letteratura Inglese
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Relations between multi-resolution analysis and quantum mechanics

2005

We discuss a procedure to construct multiresolution analyses (MRA) of L2 (R) starting from a given seed function h (s) which should satisfy some conditions. Our method, originally related to the quantum mechanical Hamiltonian of the fractional quantum Hall effect, is shown to be model independent. The role of a canonical map between certain canonically conjugate operators is discussed. This clarifies our previous procedure and makes much easier most of the original formulas, producing a convenient framework to produce examples of MRA. © 2005 American Institute of Physics.

WindowsPure mathematicsfast parallelMultiresolution analysisFOS: Physical sciencesStatistical and Nonlinear PhysicsMathematical Physics (math-ph)Quantum Hall effectMathematical Operatorshall effectsymbols.namesakeFractional quantum Hall effectLinear algebrasymbolsMathematical transformationsCanonical mapHamiltonian (quantum mechanics)Settore MAT/07 - Fisica MatematicaQuantumMathematical PhysicsMathematics
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La cultura ci salverà? Processi di touristification a base culturale nel centro storico di Palermo

2023

Negli ultimi tre decenni la cultura ha avuto un ruolo chiave nella costruzione delle politiche urbane, divenendo uno strumento decisivo nella definizione delle strategie di sviluppo economico e nell’accesso alla competizione globale che caratterizzano l’attuale regime di neoliberismo urbano (Miles e Paddison 2005). Anche nel sud Europa la cosiddetta rigenerazione a base culturale ha rappresentato e continua ancora oggi a rappresentare una vera e propria ortodossia urbana, che trova nel turismo tanto una ragione di esistenza quanto un campo di attuazione. In particolare, negli ultimi anni i centri storici di molte città sudeuropee sono stati oggetto di trasformazioni profonde in cui pratiche…

Within this framework Palermo and its historic center are no exception. The epicenter of these processes is represented here by the Kalsa district which since the early 2000s has been placed at the center of a precise strategy of culturally-based renewal called to drive the city's tourist renaissance (Vinci 2008). The culmination of this path came in 2018 when Palermo was named the Italian capital of culture and chosen as the venue for Manifesta one of the most prestigious traveling biennales of contemporary art. However the exponential increase in tourist arrivals in the last three years came to a halt with the outbreak of the pandemic which showed with unprecedented evidence the contradictions of the development strategies pursued in the historic center and the marks they leave on the territories. While this sudden interruption seems to offer an opportunity to radically rethink urban and cultural policies and find new curbs to the conditions of overtourism in which the historic centers of South European cities and beyond find themselves it could also prove to be an accelerator of the dynamics of commodification of these spaces representing the revival of tourism an easy escape route in times of crisis. The objective of this contribution is to critically explore the urban and social transformations that have crossed the Kalsa district of Palermo from the 2000s to the present using qualitative and quantitative techniques (analysis of statistical data in-depth interviews critical discourse analysis ...) with particular reference to the role that culture has played in these processes. While it is impossible to prefigure post-pandemic scenarios we will examine documents and discourses that trace possible development directions for South European cities and their historic centers.Settore ICAR/21 - UrbanisticaSettore M-GGR/01 - Geografia
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Emotion rating from short blog texts

2008

Being able to automatically perceive a variety of emotions from text alone has potentially important applications in CMC and HCI that range from identifying mood from online posts to enabling dynamically adaptive interfaces. However, such ability has not been proven in human raters or computational systems. Here we examine the ability of naive raters of emotion to detect one of eight emotional categories from 50 and 200 word samples of real blog text. Using expert raters as a 'gold standard', naive-expert rater agreement increased with longer texts, and was high for ratings of joy, disgust, anger and anticipation, but low for acceptance and 'neutral' texts. We discuss these findings in ligh…

World Wide WebInformationSystems_MODELSANDPRINCIPLESMoodmedia_common.quotation_subjectAffect (linguistics)Computer-mediated communicationAngerVariety (linguistics)PsychologyAnticipationDisgustmedia_commonCognitive psychologyProceedings of the SIGCHI Conference on Human Factors in Computing Systems
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Towards Introducing User Preferences in OLAP Reporting Tool

2012

This paper presents an OLAP reporting tool and an approach for determining and processing user OLAP preferences, which are useful for generating recommendations on potentially interesting reports. We discuss the metadata layers of the reporting tool including our proposed OLAP preferences metamodel, which supports various scenarios of formulating preferences of two different types: schema-specific and report-specific. The process of semantic metadata usage at the stage of formulating user preferences is also considered. The methods for processing schema-specific and report-specific OLAP preferences are outlined.

World Wide WebMetadataInformation retrievalComputer scienceProcess (engineering)Online analytical processingInformationSystems_DATABASEMANAGEMENTData warehouseMetamodeling
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Context-aware summary generation for Web pages

2009

General purpose search engines provide users with lists of retrieved documents in response to their queries. The common structure of list elements includes the title of a document, its URL, and small snippet from the text. Snippets are evidence of occurrences of query's keywords in the document. The length of each snippet is just a couple of lines. They cannot play a role of summaries of retrieved documents: In many cases, they are not indicative and users cannot judge on the relevancy of documents. In our approach we use ontology as context description and that ontology will be used to describe user's main interest with respect to wanted summary and help to select weighting of key words an…

World Wide WebStructure (mathematical logic)Information retrievalComputer scienceInformationSystems_INFORMATIONSTORAGEANDRETRIEVALWeb pageComputingMethodologies_DOCUMENTANDTEXTPROCESSINGKey (cryptography)Context (language use)ThesaurusDocument retrievalSnippetOntology (information science)2009 IEEE International Workshop on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications
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Dispositif d'extraction d'informations à partir d'une image

2017

L'invention concerne un dispositif d'extraction d'informations (10) à partir d'une image (12), le dispositif comportant une alternance de deux couches simples (S1, S2) et de deux couches complexes (C1, C2), -la première couche simple (S1) comportant un banc de filtres (15) qui diffèrent par leurs tailles et/ou leurs orientations, chaque filtre (15) étant configuré pour filtrer l'image d'entrée (12, 14), -la première couche simple (S1) intégrant des filtres (15) dont chaque coefficient (16) est codé sur un nombre de bits inférieur ou égal à 8 bits.

[ INFO ] Computer Science [cs][INFO]Computer Science [cs]Extraction d'informations[INFO] Computer Science [cs]Informatique
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