923 resultados para Natural Language Processing,Recommender Systems,Android,Applicazione mobile


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Gli elementi ludici aiutano a comprendere i bisogni del mondo in cui viviamo e rendono meno noiose quelle attività che normalmente non gratificano in modo sufficiente un individuo; la gamification viene definita come l'utilizzo di elementi di gioco in contesti non di gioco. In questo elaborato viene analizzato come si è evoluto il rapporto tra essere umano e gioco, come si è arrivati a definire la gamification e quali sono le parti atomiche che la compongono. Si analizzano diversi casi di successo in cui è stata implementata la gamification ed infine viene analizzato il mio progetto personale ParcheggioGratuito, in cui applico metodologie di gamification per facilitare il meccanismo di ricerca del parcheggio nella propria città.

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La tesi si pone il duplice obiettivo, da un lato, di seguire e approfondire i lavori di restauro e messa in sicurezza delle facciate di palazzo del Podestà, dall'altro, contemporaneamente, di proporre, sviluppare e sperimentare strumenti digitali da utilizzare durante la progettazione e l'esecuzione degli interventi di Restauro. Il settore del restauro architettonico si presenta, più di tanti altri, caratterizzato dalla molteplicità delle figure che intervengono nel corso del processso produttivo e dalla grandissima varietà e quantità di informazioni che entrano in gioco, partendo dalla fase di rilievo dello stato di fatto, fino all'indispensabile documentazione di fine lavori. Prendendo avvio, dunque, dal tirocinio svolto presso la Leonardo S.r.l. di Bologna, si è svolta una riflessione sui processi gestionali ed operativi legati alle operazioni di restauro e ci si è proposti di sviluppare e proporre alcuni strumenti digitali che, senza stravolgere l'attuale processo produttivo, potessero portare benefici operativi all'attività aziendale, facilitare il controllo ed il feedback da parte del committente e migliorare ed alleggerire l'onere della rendicontazione dei lavori. L'orizzonte di questi strumenti è multiplo: per l'attualità è stata sviluppata, in collaborazione con l'ENEA di Bologna, un'applicazione mobile su piattaforma FileMaker per la gestione delle operazioni di restauro attraverso la creazione di un database per la gestione delle analisi e del cantiere; mentre, per uno sviluppo "a regime" fra qualche anno, si è valutata l'efficacia di tecnologie SfM (Structure from Motion) per il rilievo speditivo e la documentazione. Nell'ottica di sviluppi ancora più lontani, infine, le due fasi saranno riunite nella proposta di tecnologie di realtà aumentata con l'obiettivo futuribile di poter passare direttamente dalla realtà e dal rilievo tridimensionale speditivo al progetto ed alla documentazione, senza dovere necessariamente passare da elaborati grafici bidimensionali. Durante tutte queste fasi lo sviluppo delle tecnologie è proceduto di pari passo con il cantiere di palazzo del Podestà, tanto nelle fasi di approfondita ricerca storica, quanto nella produzione delle schede di intervento. L'occasione della ricerca storica ha anche permesso di stilare un semplice regesto, corredato da immagini e bibliografia che raduna ed integra con materiali inediti i numerosi contributi sul tema che si sono succeduti dalla fine del XIX ai giorni nostri.

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Il lavoro di questa tesi si basa sul definire quale metodo di programmazione di un'applicazione mobile risulti più idoneo per uno specifico ambiente di sviluppo web, che verrà introdotto nel terzo capitolo. In primis, questa dissertazione presenterà il mondo del mobile, analizzando il suo sviluppo tecnologico nel tempo e come, a causa di ciò, siano cambiati gli usi e i costumi delle attuali generazioni, riportando alcuni grafici che ci mostreranno questa rivoluzione e comparando la diffusione e l’uso odierno dei nuovi cellulari con quella dei PC. A tal proposito, verrà introdotto il concetto di smartphone, inteso come moderno cellulare dalle tantissime ed ampliabili funzionalità che rendono ormai indispensabile il suo utilizzo.

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La tesi, svolta per il completamento della Laurea Magistrale in Ingegneria Informatica, tratta la realizzazione di un progetto prototipo di Computer Vision (CV) e Realtà Aumentata (RA) per la manutenzione tecnica di macchinari industriali attraverso l'utilizzo di dispositivi mobili See-Through. Lo scopo è stato, oltre lo studio dello stato dell'arte in materia, provare con mano e rendere maggiormente visibili al pubblico questi nuovi rami dell'informatica. Il prototipo creato è stato inserito in un contesto aziendale, con misurazioni e prove sul campo. Partendo da una breve introduzione sulla realtà aumentata, nel primo capitolo viene descritto il progetto sviluppato, diviso in due sottoprogetti. Il primo, svolto solamente in una fase iniziale e presentato nel secondo capitolo, espone la realizzazione di un'applicazione mobile per lo streaming video con l'aggiunta di contenuti grafici aumentati. Il secondo, progettato e sviluppato in totale autonomia, rappresenta un prototipo demo di utilizzo della RA. La realizzazione viene illustrata nei capitoli successivi. Nel terzo capitolo si introducono gli strumenti che sono stati utilizzati per lo sviluppo dell'applicazione, in particolare Unity (per il development multi-piattaforma), Vuforia (per gli algoritmi di CV) e Blender (per la realizzazione di procedure di manutenzione). Il quarto capitolo, la parte più rilevante della trattazione, descrive, passo dopo passo, la creazione dei vari componenti, riassumendo in modo conciso e attraverso l'uso di figure i punti cardine. Infine, il quinto capitolo conclude il percorso realizzato presentando i risultati raggiunti e lasciando spunto per possibili miglioramenti ed aggiunte.

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in questo elaborato sono trattati i temi delle Adaptive User Interface e dell'Internet Of Things nei sistemi mobili. Il primo attraverso l'orchestrazione e la definizione di un'architettura framework in grado di fornire allo sviluppatore tutti gli strumenti di base per la realizzazione di interfacce grafiche capaci di esibire un comportamento adattativo a livello di singoli componenti. il secondo,invece, attraverso lo studio della tecnologia DQuid applicata ad un caso d'uso reale nel quale si prevedeva la connessione di un applicazione mobile iOS con un sistema per il parcheggio in garage di un'autovettura ed il monitoraggio delle informazioni relative.

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We examined aesthetic preference for reproductions of paintings among frontotemporal dementia (FTD) patients, in two sessions separated by 2 weeks. The artworks were in three different styles: representational, quasirepresentational, and abstract. Stability of preference for the paintings was equivalent to that shown by a matched group of Alzheimer's disease patients and a group of healthy controls drawn from an earlier study. We expected that preference for representational art would be affected by disruptions in language processes in the FTD group. However, this was not the case and the FTD patients, despite severe language processing deficits, performed similarly across all three art styles. These data show that FTD patients maintain a sense of aesthetic appraisal despite cognitive impairment and should be amenable to therapies and enrichment activities involving art.

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Following last two years’ workshop on dynamic languages at the ECOOP conference, the Dyla 2007 workshop was a successful and popular event. As its name implies, the workshop’s focus was on dynamic languages and their applications. Topics and discussions at the workshop included macro expansion mechanisms, extension of the method lookup algorithm, language interpretation, reflexivity and languages for mobile ad hoc networks. The main goal of this workshop was to bring together different dynamic language communities and favouring cross communities interaction. Dyla 2007 was organised as a full day meeting, partly devoted to presentation of submitted position papers and partly devoted to tool demonstration. All accepted papers can be downloaded from the workshop’s web site. In this report, we provide an overview of the presentations and a summary of discussions.

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Research and professional practices have the joint aim of re-structuring the preconceived notions of reality. They both want to gain the understanding about social reality. Social workers use their professional competence in order to grasp the reality of their clients, while researchers’ pursuit is to open the secrecies of the research material. Development and research are now so intertwined and inherent in almost all professional practices that making distinctions between practising, developing and researching has become difficult and in many aspects irrelevant. Moving towards research-based practices is possible and it is easily applied within the framework of the qualitative research approach (Dominelli 2005, 235; Humphries 2005, 280). Social work can be understood as acts and speech acts crisscrossing between social workers and clients. When trying to catch the verbal and non-verbal hints of each others’ behaviour, the actors have to do a lot of interpretations in a more or less uncertain mental landscape. Our point of departure is the idea that the study of social work practices requires tools which effectively reveal the internal complexity of social work (see, for example, Adams & Dominelli & Payne 2005, 294 – 295). The boom of qualitative research methodologies in recent decades is associated with much profound the rupture in humanities, which is called the linguistic turn (Rorty 1967). The idea that language is not transparently mediating our perceptions and thoughts about reality, but on the contrary it constitutes it was new and even confusing to many social scientists. Nowadays we have got used to read research reports which have applied different branches of discursive analyses or narratologic or semiotic approaches. Although differences are sophisticated between those orientations they share the idea of the predominance of language. Despite the lively research work of today’s social work and the research-minded atmosphere of social work practice, semiotics has rarely applied in social work research. However, social work as a communicative practice concerns symbols, metaphors and all kinds of the representative structures of language. Those items are at the core of semiotics, the science of signs, and the science which examines people using signs in their mutual interaction and their endeavours to make the sense of the world they live in, their semiosis. When thinking of the practice of social work and doing the research of it, a number of interpretational levels ought to be passed before reaching the research phase in social work. First of all, social workers have to interpret their clients’ situations, which will be recorded in the files. In some very rare cases those past situations will be reflected in discussions or perhaps interviews or put under the scrutiny of some researcher in the future. Each and every new observation adds its own flavour to the mixture of meanings. Social workers have combined their observations with previous experience and professional knowledge, furthermore, the situation on hand also influences the reactions. In addition, the interpretations made by social workers over the course of their daily working routines are never limited to being part of the personal process of the social worker, but are also always inherently cultural. The work aiming at social change is defined by the presence of an initial situation, a specific goal, and the means and ways of achieving it, which are – or which should be – agreed upon by the social worker and the client in situation which is unique and at the same time socially-driven. Because of the inherent plot-based nature of social work, the practices related to it can be analysed as stories (see Dominelli 2005, 234), given, of course, that they are signifying and told by someone. The research of the practices is concentrating on impressions, perceptions, judgements, accounts, documents etc. All these multifarious elements can be scrutinized as textual corpora, but not whatever textual material. In semiotic analysis, the material studied is characterised as verbal or textual and loaded with meanings. We present a contribution of research methodology, semiotic analysis, which has to our mind at least implicitly references to the social work practices. Our examples of semiotic interpretation have been picked up from our dissertations (Laine 2005; Saurama 2002). The data are official documents from the archives of a child welfare agency and transcriptions of the interviews of shelter employees. These data can be defined as stories told by the social workers of what they have seen and felt. The official documents present only fragmentations and they are often written in passive form. (Saurama 2002, 70.) The interviews carried out in the shelters can be described as stories where the narrators are more familiar and known. The material is characterised by the interaction between the interviewer and interviewee. The levels of the story and the telling of the story become apparent when interviews or documents are examined with the use of semiotic tools. The roots of semiotic interpretation can be found in three different branches; the American pragmatism, Saussurean linguistics in Paris and the so called formalism in Moscow and Tartu; however in this paper we are engaged with the so called Parisian School of semiology which prominent figure was A. J. Greimas. The Finnish sociologists Pekka Sulkunen and Jukka Törrönen (1997a; 1997b) have further developed the ideas of Greimas in their studies on socio-semiotics, and we lean on their ideas. In semiotics social reality is conceived as a relationship between subjects, observations, and interpretations and it is seen mediated by natural language which is the most common sign system among human beings (Mounin 1985; de Saussure 2006; Sebeok 1986). Signification is an act of associating an abstract context (signified) to some physical instrument (signifier). These two elements together form the basic concept, the “sign”, which never constitutes any kind of meaning alone. The meaning will be comprised in a distinction process where signs are being related to other signs. In this chain of signs, the meaning becomes diverged from reality. (Greimas 1980, 28; Potter 1996, 70; de Saussure 2006, 46-48.) One interpretative tool is to think of speech as a surface under which deep structures – i.e. values and norms – exist (Greimas & Courtes 1982; Greimas 1987). To our mind semiotics is very much about playing with two different levels of text: the syntagmatic surface which is more or less faithful to the grammar, and the paradigmatic, semantic structure of values and norms hidden in the deeper meanings of interpretations. Semiotic analysis deals precisely with the level of meaning which exists under the surface, but the only way to reach those meanings is through the textual level, the written or spoken text. That is why the tools are needed. In our studies, we have used the semiotic square and the actant analysis. The former is based on the distinctions and the categorisations of meanings, and the latter on opening the plotting of narratives in order to reach the value structures.

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Over recent decades, palaeolimnological records from remote sites have provided convincing evidence for the onset and development of several facets of global environmental change. Remote lakes, defined here as those occurring in high latitude or high altitude regions, have the advantage of not being overprinted by local anthropogenic processes. As such, many of these sites record broad-scale environmental changes, frequently driven by regime shifts in the Earth system. Here, we review a selection of studies from North America and Europe and discuss their broader implications. The history of investigation has evolved synchronously with the scope and awareness of environmental problems. An initial focus on acid deposition switched to metal and other types of pollutants, then climate change and eventually to atmospheric deposition-fertilising effects. However, none of these topics is independent of the other, and all of them affect ecosystem function and biodiversity in profound ways. Currently, remote lake palaeolimnology is developing unique datasets for each region investigated that benchmark current trends with respect to past, purely natural variability in lake systems. Fostering conceptual and methodological bridges with other environmental disciplines will upturn contribution of remote lake palaeolimnology in solving existing and emerging questions in global change science and planetary stewardship.

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The present study shows that different neural activity during mental imagery and abstract mentation can be assigned to well-defined steps of the brain's information-processing. During randomized visual presentation of single, imagery-type and abstract-type words, 27 channel event-related potential (ERP) field maps were obtained from 25 subjects (sequence-divided into a first and second group for statistics). The brain field map series showed a sequence of typical map configurations that were quasi-stable for brief time periods (microstates). The microstates were concatenated by rapid map changes. As different map configurations must result from different spatial patterns of neural activity, each microstate represents different active neural networks. Accordingly, microstates are assumed to correspond to discrete steps of information-processing. Comparing microstate topographies (using centroids) between imagery- and abstract-type words, significantly different microstates were found in both subject groups at 286–354 ms where imagery-type words were more right-lateralized than abstract-type words, and at 550–606 ms and 606–666 ms where anterior-posterior differences occurred. We conclude that language-processing consists of several, well-defined steps and that the brain-states incorporating those steps are altered by the stimuli's capacities to generate mental imagery or abstract mentation in a state-dependent manner.

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Researchers suggest that personalization on the Semantic Web adds up to a Web 3.0 eventually. In this Web, personalized agents process and thus generate the biggest share of information rather than humans. In the sense of emergent semantics, which supplements traditional formal semantics of the Semantic Web, this is well conceivable. An emergent Semantic Web underlying fuzzy grassroots ontology can be accomplished through inducing knowledge from users' common parlance in mutual Web 2.0 interactions [1]. These ontologies can also be matched against existing Semantic Web ontologies, to create comprehensive top-level ontologies. On the Web, if augmented with information in the form of restrictions andassociated reliability (Z-numbers) [2], this collection of fuzzy ontologies constitutes an important basis for an implementation of Zadeh's restriction-centered theory of reasoning and computation (RRC) [3]. By considering real world's fuzziness, RRC differs from traditional approaches because it can handle restrictions described in natural language. A restriction is an answer to a question of the value of a variable such as the duration of an appointment. In addition to mathematically well-defined answers, RRC can likewise deal with unprecisiated answers as "about one hour." Inspired by mental functions, it constitutes an important basis to leverage present-day Web efforts to a natural Web 3.0. Based on natural language information, RRC may be accomplished with Z-number calculation to achieve a personalized Web reasoning and computation. Finally, through Web agents' understanding of natural language, they can react to humans more intuitively and thus generate and process information.

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Traditionally, ontologies describe knowledge representation in a denotational, formalized, and deductive way. In addition, in this paper, we propose a semiotic, inductive, and approximate approach to ontology creation. We define a conceptual framework, a semantics extraction algorithm, and a first proof of concept applying the algorithm to a small set of Wikipedia documents. Intended as an extension to the prevailing top-down ontologies, we introduce an inductive fuzzy grassroots ontology, which organizes itself organically from existing natural language Web content. Using inductive and approximate reasoning to reflect the natural way in which knowledge is processed, the ontology’s bottom-up build process creates emergent semantics learned from the Web. By this means, the ontology acts as a hub for computing with words described in natural language. For Web users, the structural semantics are visualized as inductive fuzzy cognitive maps, allowing an initial form of intelligence amplification. Eventually, we present an implementation of our inductive fuzzy grassroots ontology Thus,this paper contributes an algorithm for the extraction of fuzzy grassroots ontologies from Web data by inductive fuzzy classification.

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Online reputation management deals with monitoring and influencing the online record of a person, an organization or a product. The Social Web offers increasingly simple ways to publish and disseminate personal or opinionated information, which can rapidly have a disastrous influence on the online reputation of some of the entities. This dissertation can be split into three parts: In the first part, possible fuzzy clustering applications for the Social Semantic Web are investigated. The second part explores promising Social Semantic Web elements for organizational applications,while in the third part the former two parts are brought together and a fuzzy online reputation analysis framework is introduced and evaluated. Theentire PhD thesis is based on literature reviews as well as on argumentative-deductive analyses.The possible applications of Social Semantic Web elements within organizations have been researched using a scenario and an additional case study together with two ancillary case studies—based on qualitative interviews. For the conception and implementation of the online reputation analysis application, a conceptual framework was developed. Employing test installations and prototyping, the essential parts of the framework have been implemented.By following a design sciences research approach, this PhD has created two artifacts: a frameworkand a prototype as proof of concept. Bothartifactshinge on twocoreelements: a (cluster analysis-based) translation of tags used in the Social Web to a computer-understandable fuzzy grassroots ontology for the Semantic Web, and a (Topic Maps-based) knowledge representation system, which facilitates a natural interaction with the fuzzy grassroots ontology. This is beneficial to the identification of unknown but essential Web data that could not be realized through conventional online reputation analysis. Theinherent structure of natural language supports humans not only in communication but also in the perception of the world. Fuzziness is a promising tool for transforming those human perceptions intocomputer artifacts. Through fuzzy grassroots ontologies, the Social Semantic Web becomes more naturally and thus can streamline online reputation management.

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Anelis Kaiser is associate researcher at the Center for Cognitive Science at the University of Freiburg, Germany. Dr. Kaiser recently co-edited a special issue of the journal Neuroethics on gender and brain science. She is co-founder (with Isabelle Dussauge) of the interdisciplinary network NeuroGenderings, which brings together experts from the brain sciences, the humanities and science studies (STS) to critically study the sexed brain. She has published on sex and gender as constructed categories in science as well as on the topics of multilingualism and language processing in the brain. Co-sponsored with the Center for Lesbian and Gay Studies. - See more at: http://www.gc.cuny.edu/Page-Elements/Academics-Research-Centers-Initiatives/Centers-and-Institutes/Center-for-the-Study-of-Women-and-Society/Center-Events#sthash.bDeBg5fk.dpuf

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The Objective was to describe the contributions of Joseph Jules Dejerine and his wife Augusta Dejerine-Klumpke to our understanding of cerebral association fiber tracts and language processing. The Dejerines (and not Constantin von Monakow) were the first to describe the superior longitudinal fasciculus/arcuate fasciculus (SLF/AF) as an association fiber tract uniting Broca's area, Wernicke's area, and a visual image center in the angular gyrus of a left hemispheric language zone. They were also the first to attribute language-related functions to the fasciculi occipito-frontalis (FOF) and the inferior longitudinal fasciculus (ILF) after describing aphasia patients with degeneration of the SLF/AF, ILF, uncinate fasciculus (UF), and FOF. These fasciculi belong to a functional network known as the Dejerines' language zone, which exceeds the borders of the classically defined cortical language centers. The Dejerines provided the first descriptions of the anatomical pillars of present-day language models (such as the SLF/AF). Their anatomical descriptions of fasciculi in aphasia patients provided a foundation for our modern concept of the dorsal and ventral streams in language processing.