337,935 research outputs found

    Multi-layer Architecture For Storing Visual Data Based on WCF and Microsoft SQL Server Database

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    In this paper we present a novel architecture for storing visual data. Effective storing, browsing and searching collections of images is one of the most important challenges of computer science. The design of architecture for storing such data requires a set of tools and frameworks such as SQL database management systems and service-oriented frameworks. The proposed solution is based on a multi-layer architecture, which allows to replace any component without recompilation of other components. The approach contains five components, i.e. Model, Base Engine, Concrete Engine, CBIR service and Presentation. They were based on two well-known design patterns: Dependency Injection and Inverse of Control. For experimental purposes we implemented the SURF local interest point detector as a feature extractor and KK-means clustering as indexer. The presented architecture is intended for content-based retrieval systems simulation purposes as well as for real-world CBIR tasks.Comment: Accepted for the 14th International Conference on Artificial Intelligence and Soft Computing, ICAISC, June 14-18, 2015, Zakopane, Polan

    Inter-individual cognitive variability in children with Asperger's syndrome

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    Multiple studies have tried to establish the distinctive profile of individuals with Asperger's syndrome (AS). However, recent reports suggest that adults with AS feature heterogeneous cognitive profiles. The present study explores inter-individual variability in children with AS through group comparison and multiple case series analysis. All participants completed an extended battery including measures of fluid and crystallized intelligence, executive functions, theory of mind, and classical neuropsychological tests. Significant group differences were found in theory of mind and other domains related to global information processing. However, the AS group showed high inter-individual variability (both sub- and supra-normal performance) on most cognitive tasks. Furthermore, high fluid intelligence correlated with less general cognitive impairment, high cognitive flexibility, and speed of motor processing. In light of these findings, we propose that children with AS are characterized by a distinct, uneven pattern of cognitive strengths and weaknesses.Fil: GonzĂĄlez Gadea, MarĂ­a Luz. Universidad Diego Portales; Chile. Universidad Favaloro; Argentina. Instituto de NeurologĂ­a Cognitiva; Argentina. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas; ArgentinaFil: Tripicchio, Paula. Instituto de NeurologĂ­a Cognitiva; Argentina. Universidad Favaloro; ArgentinaFil: Rattazzi del Carril, Alexia. Instituto de NeurologĂ­a Cognitiva; Argentina. Universidad Favaloro; ArgentinaFil: BĂĄez Buitrago, Sandra Jimena. Universidad Favaloro; Argentina. Universidad Diego Portales; Chile. Universidad Catolica Argentina; Argentina. Instituto de NeurologĂ­a Cognitiva; Argentina. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas; ArgentinaFil: Marino, JuliĂĄn Carlos. Universidad Nacional de CĂłrdoba. Facultad de PsicologĂ­a; Argentina. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas; ArgentinaFil: Roca, MarĂ­a. Universidad Favaloro; Argentina. Instituto de NeurologĂ­a Cognitiva; Argentina. Universidad Diego Portales; Chile. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas; ArgentinaFil: Manes, Facundo Francisco. Instituto de NeurologĂ­a Cognitiva; Argentina. Universidad Favaloro; Argentina. Universidad Diego Portales; Chile. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas; Argentina. Centre of Excellence in Cognition and its Disorders; AustriaFil: Ibanez Barassi, Agustin Mariano. Instituto de NeurologĂ­a Cognitiva; Argentina. Universidad Favaloro; Argentina. Universidad Diego Portales; Chile. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas; Argentina. Centre of Excellence in Cognition and its Disorders; Austria. Universidad Autonoma del Caribe; Colombi

    Al-Qaeda in Gaza: isolating “the base”

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    In 1996, Osama bin Laden declared jihad against the American forces occupying Saudi Arabia, calling for Muslims to expel the infidels from the “land of the two holy places.” The first sacred ground mentioned in this statement, however, was not Saudi Arabia but Palestine. His words seething with hatred, bin Laden scorned the Arab regimes for failing to recapture Jerusalem and described the situation as a festering wound upon the Islamic umma.[1] Fourteen years later, even after orchestrating devastating attacks in three Western capitals, Bin Laden’s al-Qaeda is still unable to do much against Israel besides issuing scathing diatribes. Its most vigorous efforts to establish itself in the Palestinian arena have been in the Gaza Strip. Here, however, al-Qaeda-linked groups are stymied by a perhaps surprising adversary: Hamas. But despite Hamas’s efforts to suppress them, Salafi-jihadi groups maintain an underground presence. Even if al-Qaeda affiliates remain weak operationally in comparison to Hamas, al-Qaeda’s ideology of global jihad seems to be on the rise in Gaza. Meanwhile, the al-Qaeda leadership is relentless in pursuing new and ingenious ways for its agents to penetrate the Strip. A Hamas weakened by a tightened blockade or another war with Israel would leave an opening for Salafi-jihadi militants. The prospect of these al-Qaeda-linked factions upsetting a fragile peace needs to be considered among the many other factors relevant to engagement with Hamas.Publisher PD

    A graph-based mathematical morphology reader

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    This survey paper aims at providing a "literary" anthology of mathematical morphology on graphs. It describes in the English language many ideas stemming from a large number of different papers, hence providing a unified view of an active and diverse field of research

    One-Class Classification: Taxonomy of Study and Review of Techniques

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    One-class classification (OCC) algorithms aim to build classification models when the negative class is either absent, poorly sampled or not well defined. This unique situation constrains the learning of efficient classifiers by defining class boundary just with the knowledge of positive class. The OCC problem has been considered and applied under many research themes, such as outlier/novelty detection and concept learning. In this paper we present a unified view of the general problem of OCC by presenting a taxonomy of study for OCC problems, which is based on the availability of training data, algorithms used and the application domains applied. We further delve into each of the categories of the proposed taxonomy and present a comprehensive literature review of the OCC algorithms, techniques and methodologies with a focus on their significance, limitations and applications. We conclude our paper by discussing some open research problems in the field of OCC and present our vision for future research.Comment: 24 pages + 11 pages of references, 8 figure

    Guess the score, fostering collective intelligence in the class

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    This paper proposes the use of serious games as a tool to enhance collective intelligence of undergraduate and graduate students. The development of social skills of individuals in a group is related to the performance of the collective intelligence of the group manifested through the shared and collaborative development of intellectual tasks [1]. Guess the Score GS, is a serious game implemented by means of an online tool, created to foster the development, collaboration and engagement of students. It's has been designed with the intention of facilitating the development of individual’s social skills in a group in order to promote education of collective intelligence. This paper concludes that the design of learning activities using serious games as a support tool in education, generate awareness about of utilities of gaming in the collective learning environment and the fostering of collective intelligence education.Postprint (published version
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