When that tune runs through your head: a PET investigation of auditory imagery for familiar melodies

The present study used positron emission tomography (PET) to examine the cerebral activity pattern associated with auditory imagery for familiar tunes. Subjects either imagined the continuation of nonverbal tunes cued by their first few notes, listened to a short sequence of notes as a control task, or listened and then reimagined that short sequence. Subtraction of the activation in the control task from that in the real-tune imagery task revealed primarily right-sided activation in frontal and superior temporal regions, plus supplementary motor area (SMA). Isolating retrieval of the real tunes by subtracting activation in the reimagine task from that in the real-tune imagery task revealed activation primarily in right frontal areas and right superior temporal gyrus. Subtraction of activation in the control condition from that in the reimagine condition, intended to capture imagery of unfamiliar sequences, revealed activation in SMA, plus some left frontal regions. We conclude that areas of right auditory association cortex, together with right and left frontal cortices, are implicated in imagery for familiar tunes, in accord with previous behavioral, lesion and PET data. Retrieval from musical semantic memory is mediated by structures in the right frontal lobe, in contrast to results from previous studies implicating left frontal areas for all semantic retrieval. The SMA seems to be involved specifically in image generation, implicating a motor code in this process.

Multipedia: Enriching DBpedia with Multimedia Information

Enriching knowledge bases with multimedia information makes it possible to complement textual descriptions with visual and audio information. Such complementary information can help users to understand the meaning of assertions, and in general improve the user experience with the knowledge base. In this paper we address the problem of how to enrich ontology instances with candidate images retrieved from existing Web search engines. DBpedia has evolved into a major hub in the Linked Data cloud, interconnecting millions of entities organized under a consistent ontology. Our approach taps into the Wikipedia corpus to gather context information for DBpedia instances and takes advantage of image tagging information when this is available to calculate semantic relatedness between instances and candidate images. We performed experiments with focus on the particularly challenging problem of highly ambiguous names. Both methods presented in this work outperformed the baseline. Our best method leveraged context words from Wikipedia, tags from Flickr and type information from DBpedia to achieve an average precision of 80%.

Unified access to media metadata on the web: Towards interoperability using a core vocabulary.

The goal of the W3C's Media Annotation Working Group (MAWG) is to promote interoperability between multimedia metadata formats on the Web. As experienced by everybody, audiovisual data is omnipresent on today's Web. However, different interaction interfaces and especially diverse metadata formats prevent unified search, access, and navigation. MAWG has addressed this issue by developing an interlingua ontology and an associated API. This article discusses the rationale and core concepts of the ontology and API for media resources. The specifications developed by MAWG enable interoperable contextualized and semantic annotation and search, independent of the source metadata format, and connecting multimedia data to the Linked Data cloud. Some demonstrators of such applications are also presented in this article.

Characterising emergent semantics in Twitter lists

Twitter lists organise Twitter users into multiple, often overlapping, sets. We believe that these lists capture some form of emergent semantics, which may be useful to characterise. In this paper we describe an approach for such characterisation, which consists of deriving semantic relations between lists and users by analyzing the cooccurrence of keywords in list names. We use the vector space model and Latent Dirichlet Allocation to obtain similar keywords according to co-occurrence patterns. These results are then compared to similarity measures relying on WordNet and to existing Linked Data sets. Results show that co-occurrence of keywords based on members of the lists produce more synonyms and more correlated results to that of WordNet similarity measures.

Integrating WordNet and Wiktionary with lemon

Nowadays, there is a significant quantity of linguistic data available on the Web. However, linguistic resources are often published using proprietary formats and, as such, it can be difficult to interface with one another and they end up confined in “data silos”. The creation of web standards for the publishing of data on the Web and projects to create Linked Data have lead to interest in the creation of resources that can be published using Web principles. One of the most important aspects of “Lexical Linked Data” is the sharing of lexica and machine readable dictionaries. It is for this reason, that the lemon format has been proposed, which we briefly describe. We then consider two resources that seem ideal candidates for the Linked Data cloud, namely WordNet 3.0 and Wiktionary, a large document based dictionary. We discuss the challenges of converting both resources to lemon , and in particular for Wiktionary, the challenge of processing the mark-up, and handling inconsistencies and underspecification in the source material. Finally, we turn to the task of creating links between the two resources and present a novel algorithm for linking lexica as lexical Linked Data.

CloudRoom: una plataforma universitaria social, semántica y ubicua

Estamos viviendo la era de la Internetificación. A día de hoy, las conexiones a Internet se asumen presentes en nuestro entorno como una necesidad más. La Web, se ha convertido en un lugar de generación de contenido por los usuarios. Una información generada, que sobrepasa la idea con la que surgió esta, ya que en la mayoría de casos, su contenido no se ha diseñado más que para ser consumido por humanos, y no por máquinas. Esto supone un cambio de mentalidad en la forma en que diseñamos sistemas capaces de soportar una carga computacional y de almacenamiento que crece sin un fin aparente. Al mismo tiempo, vivimos un momento de crisis de la educación superior: los altos costes de una educación de calidad suponen una amenaza para el mundo académico. Mediante el uso de la tecnología, se puede lograr un incremento de la productividad, y una reducción en dichos costes en un campo, en el que apenas se ha avanzado desde el Renacimiento. En CloudRoom se ha diseñado una plataforma MOOC con una arquitectura ajustada a las últimas convenciones en Cloud Computing, que implica el uso de Servicios REST, bases de datos NoSQL, y que hace uso de las últimas recomendaciones del W3C en materia de desarrollo web y Linked Data. Para su construcción, se ha hecho uso de métodos ágiles de Ingeniería del Software, técnicas de Interacción Persona-Ordenador, y tecnologías de última generación como Neo4j, Redis, Node.js, AngularJS, Bootstrap, HTML5, CSS3 o Amazon Web Services. Se ha realizado un trabajo integral de Ingeniería Informática, combinando prácticamente la totalidad de aquellas áreas de conocimiento fundamentales en Informática. En definitiva se han ideado las bases de un sistema distribuido robusto, mantenible, con características sociales y semánticas, que puede ser ejecutado en múltiples dispositivos, y que es capaz de responder ante millones de usuarios. We are living through an age of Internetification. Nowadays, Internet connections are a utility whose presence one can simply assume. The web has become a place of generation of content by users. The information generated surpasses the notion with which the World Wide Web emerged because, in most cases, this content has been designed to be consumed by humans and not by machines. This fact implies a change of mindset in the way that we design systems; these systems should be able to support a computational and storage capacity that apparently grows endlessly. At the same time, our education system is in a state of crisis: the high costs of high-quality education threaten the academic world. With the use of technology, we could achieve an increase of productivity and quality, and a reduction of these costs in this field, which has remained largely unchanged since the Renaissance. In CloudRoom, a MOOC platform has been designed with an architecture that satisfies the last conventions on Cloud Computing; which involves the use of REST services, NoSQL databases, and uses the last recommendations from W3C in terms of web development and Linked Data. For its building process, agile methods of Software Engineering, Human-Computer Interaction techniques, and state of the art technologies such as Neo4j, Redis, Node.js, AngularJS, Bootstrap, HTML5, CSS3 or Amazon Web Services have been used. Furthermore, a comprehensive Informatics Engineering work has been performed, by combining virtually all of the areas of knowledge in Computer Science. Summarizing, the pillars of a robust, maintainable, and distributed system have been devised; a system with social and semantic capabilities, which runs in multiple devices, and scales to millions of users.

Integrating geographical information in the Linked Digital Earth

Many progresses have been made since the Digital Earth notion was envisioned thirteen years ago. However, the mechanism for integrating geographic information into the Digital Earth is still quite limited. In this context, we have developed a process to generate, integrate and publish geospatial Linked Data from several Spanish National data-sets. These data-sets are related to four Infrastructure for Spatial Information in the European Community (INSPIRE) themes, specifically with Administrative units, Hydrography, Statistical units, and Meteorology. Our main goal is to combine different sources (heterogeneous, multidisciplinary, multitemporal, multiresolution, and multilingual) using Linked Data principles. This goal allows the overcoming of current problems of information integration and driving geographical information toward the next decade scenario, that is, ?Linked Digital Earth.?

A framework for goal-oriented discovery of resources in the RESTful architecture

One of the challenges facing the current web is the efficient use of all the available information. The Web 2.0 phenomenon has favored the creation of contents by average users, and thus the amount of information that can be found for diverse topics has grown exponentially in the last years. Initiatives such as linked data are helping to build the Semantic Web, in which a set of standards are proposed for the exchange of data among heterogeneous systems. However, these standards are sometimes not used, and there are still plenty of websites that require naive techniques to discover their contents and services. This paper proposes an integrated framework for content and service discovery and extraction. The framework is divided into several layers where the discovery of contents and services is made in a representational stateless transfer system such as the web. It employs several web mining techniques as well as feature-oriented modeling for the discovery of cross-cutting features in web resources. The framework is used in a scenario of electronic newspapers. An intelligent agent crawls the web for related news, and uses services and visits links automatically according to its goal. This scenario illustrates how the discovery is made at different levels and how the use of semantics helps implement an agent that performs high-level tasks.

Enhanced reproducibility of SADI web service workflows with Galaxy and Docke

Background: Semantic Web technologies have been widely applied in the life sciences, for example by data providers such as OpenLifeData and through web services frameworks such as SADI. The recently reported OpenLifeData2SADI project offers access to the vast OpenLifeData data store through SADI services. Findings: This article describes how to merge data retrieved from OpenLifeData2SADI with other SADI services using the Galaxy bioinformatics analysis platform, thus making this semantic data more amenable to complex analyses. This is demonstrated using a working example, which is made distributable and reproducible through a Docker image that includes SADI tools, along with the data and workflows that constitute the demonstration. Conclusions: The combination of Galaxy and Docker offers a solution for faithfully reproducing and sharing complex data retrieval and analysis workflows based on the SADI Semantic web service design patterns.

ESPIRITUALIDADE NO MUNDO CORPORATIVO: APROXIMAÇÕES ENTRE PRÁTICA RELIGIOSA E VIDA PROFISSIONAL

O tema Espiritualidade no mundo corporativo: aproximações entre a práxis religiosa e a vida profissional, é compreendido no campo das Ciências da Religião, especificamente na área de Práxis religiosa na sociedade, e foi pesquisado de acordo com o método histórico crítico, tendo como metodologia para a coleta de dados a pesquisa bibliográfica e documental. O estudo do tema buscou verificar duas hipóteses, a saber: a espiritualidade no mundo corporativo como resposta às necessidades espirituais da sociedade contemporânea, em substituição às expressões religiosas institucionalizadas, e a espiritualidade no mundo corporativo como conceito solidário à práxis religiosa para a promoção humana no mercado e na sociedade. Os conceitos de espiritualidade em Paul Tillich e práxis em Casiano Floristán foram utilizados como referencias teóricos para estudo do tema. A dissertação foi estruturada em três capítulos. No primeiro, há definições e relações dos termos que determinam o campo semântico da espiritualidade, que são: espiritualidade e religião, religioso e secular, sagrado e profano. No segundo, há o registro das origens do movimento, identificando seu período de florescimento, seus principais atores, seu contexto científico, ideológico, religioso, econômico e filosófico, e principalmente lista os diferentes conceitos que o termo espiritualidade adquire no mundo corporativo. Esse capítulo esclarece os fatores sociais e históricos que possibilitaram a inserção da espiritualidade no local de trabalho e a inclusão do tema no mundo corporativo. Finalmente, o terceiro e último capítulo analisa três possíveis utilizações do conceito de espiritualidade no mundo corporativo: a espiritualidade a serviço da religião (proselitismo), do capital (performance) e do ser humano (práxis). Possibilitando assim ao leitor ampliar seus conhecimentos sobre o tema que é o objeto desta dissertação.(AU)

ESPIRITUALIDADE NO MUNDO CORPORATIVO: APROXIMAÇÕES ENTRE PRÁTICA RELIGIOSA E VIDA PROFISSIONAL

O tema Espiritualidade no mundo corporativo: aproximações entre a práxis religiosa e a vida profissional, é compreendido no campo das Ciências da Religião, especificamente na área de Práxis religiosa na sociedade, e foi pesquisado de acordo com o método histórico crítico, tendo como metodologia para a coleta de dados a pesquisa bibliográfica e documental. O estudo do tema buscou verificar duas hipóteses, a saber: a espiritualidade no mundo corporativo como resposta às necessidades espirituais da sociedade contemporânea, em substituição às expressões religiosas institucionalizadas, e a espiritualidade no mundo corporativo como conceito solidário à práxis religiosa para a promoção humana no mercado e na sociedade. Os conceitos de espiritualidade em Paul Tillich e práxis em Casiano Floristán foram utilizados como referencias teóricos para estudo do tema. A dissertação foi estruturada em três capítulos. No primeiro, há definições e relações dos termos que determinam o campo semântico da espiritualidade, que são: espiritualidade e religião, religioso e secular, sagrado e profano. No segundo, há o registro das origens do movimento, identificando seu período de florescimento, seus principais atores, seu contexto científico, ideológico, religioso, econômico e filosófico, e principalmente lista os diferentes conceitos que o termo espiritualidade adquire no mundo corporativo. Esse capítulo esclarece os fatores sociais e históricos que possibilitaram a inserção da espiritualidade no local de trabalho e a inclusão do tema no mundo corporativo. Finalmente, o terceiro e último capítulo analisa três possíveis utilizações do conceito de espiritualidade no mundo corporativo: a espiritualidade a serviço da religião (proselitismo), do capital (performance) e do ser humano (práxis). Possibilitando assim ao leitor ampliar seus conhecimentos sobre o tema que é o objeto desta dissertação.(AU)

ESPIRITUALIDADE NO MUNDO CORPORATIVO: APROXIMAÇÕES ENTRE PRÁTICA RELIGIOSA E VIDA PROFISSIONAL

O tema Espiritualidade no mundo corporativo: aproximações entre a práxis religiosa e a vida profissional, é compreendido no campo das Ciências da Religião, especificamente na área de Práxis religiosa na sociedade, e foi pesquisado de acordo com o método histórico crítico, tendo como metodologia para a coleta de dados a pesquisa bibliográfica e documental. O estudo do tema buscou verificar duas hipóteses, a saber: a espiritualidade no mundo corporativo como resposta às necessidades espirituais da sociedade contemporânea, em substituição às expressões religiosas institucionalizadas, e a espiritualidade no mundo corporativo como conceito solidário à práxis religiosa para a promoção humana no mercado e na sociedade. Os conceitos de espiritualidade em Paul Tillich e práxis em Casiano Floristán foram utilizados como referencias teóricos para estudo do tema. A dissertação foi estruturada em três capítulos. No primeiro, há definições e relações dos termos que determinam o campo semântico da espiritualidade, que são: espiritualidade e religião, religioso e secular, sagrado e profano. No segundo, há o registro das origens do movimento, identificando seu período de florescimento, seus principais atores, seu contexto científico, ideológico, religioso, econômico e filosófico, e principalmente lista os diferentes conceitos que o termo espiritualidade adquire no mundo corporativo. Esse capítulo esclarece os fatores sociais e históricos que possibilitaram a inserção da espiritualidade no local de trabalho e a inclusão do tema no mundo corporativo. Finalmente, o terceiro e último capítulo analisa três possíveis utilizações do conceito de espiritualidade no mundo corporativo: a espiritualidade a serviço da religião (proselitismo), do capital (performance) e do ser humano (práxis). Possibilitando assim ao leitor ampliar seus conhecimentos sobre o tema que é o objeto desta dissertação.(AU)

A semantic modelling approach to knowledge based statistical software

The topic of this thesis is the development of knowledge based statistical software. The shortcomings of conventional statistical packages are discussed to illustrate the need to develop software which is able to exhibit a greater degree of statistical expertise, thereby reducing the misuse of statistical methods by those not well versed in the art of statistical analysis. Some of the issues involved in the development of knowledge based software are presented and a review is given of some of the systems that have been developed so far. The majority of these have moved away from conventional architectures by adopting what can be termed an expert systems approach. The thesis then proposes an approach which is based upon the concept of semantic modelling. By representing some of the semantic meaning of data, it is conceived that a system could examine a request to apply a statistical technique and check if the use of the chosen technique was semantically sound, i.e. will the results obtained be meaningful. Current systems, in contrast, can only perform what can be considered as syntactic checks. The prototype system that has been implemented to explore the feasibility of such an approach is presented, the system has been designed as an enhanced variant of a conventional style statistical package. This involved developing a semantic data model to represent some of the statistically relevant knowledge about data and identifying sets of requirements that should be met for the application of the statistical techniques to be valid. Those areas of statistics covered in the prototype are measures of association and tests of location.

Europeana Creative. EDM Endpoint. Custom Views

The paper discusses the Europeana Creative project which aims to facilitate re-use of cultural heritage metadata and content by the creative industries. The paper focuses on the contribution of Ontotext to the project activities. The Europeana Data Model (EDM) is further discussed as a new proposal for structuring the data that Europeana will ingest, manage and publish. The advantages of using EDM instead of the current ESE metadata set are highlighted. Finally, Ontotext’s EDM Endpoint is presented, based on OWLIM semantic repository and SPARQL query language. A user-friendly RDF view is presented in order to illustrate the possibilities of Forest - an extensible modular user interface framework for creating linked data and semantic web applications.

Trends in Digital Cultural Heritage Management and Applications

We present some recent trends in the field of digital cultural heritage management and applications including digital cultural data curation, interoperability, open linked data publishing, crowd sourcing, visualization, platforms for digital cultural heritage, and applications. We present some examples from research and development projects of MUSIC/TUC in those areas.