O processo de elaboração, execução, coleta e análise de dados de experimentos ambientais com abelhas utilizando meios computacionais como suporte a pesquisa, é uma atividade complexa por exigir do pesquisador conhecimentos específicos aos quais ele não foi preparado para atuar. Laboratórios virtuais conhecidos como Weblabs são ferramentas de apoio a pesquisa, pois permitem a realização de experimentos sem a necessidade da presença física da equipe de pesquisadores. O modelo matemático utilizado junto com a sua interpretação são partes do experimento, porém não são tratados dessa maneira atualmente nos Weblabs. Este trabalho propõe a especificação de uma arquitetura de referência a ser empregada como modelo para permitir o desenvolvimento de componentes que disponibilizem serviços com a capacidade de efetuar a integração de dados coletados por meio de experimentos científicos executados com o auxílio dos Weblabs com ferramentas especialistas voltadas a experimentos ambientais e de biodiversidade. A especificação é baseada no paradigma de arquitetura orientada a serviços, permitindo o gerenciamento de análise de experimentos utilizando Weblabs e disponibilizando os serviços especificados para funcionamento em ambientes distribuídos. Este modelo é a base para um estudo de caso com a elaboração de uma prova de conceito, por meio do desenvolvimento de um componente que publique, disponibilize e integre os dados coletados em um Weblab com uma ferramenta especialista em análises ambientais. / The preparation, execution, collection and closing of an experiment using computational means to support the research, is a complex activity because it requires specific knowledge of the researcher to whom he was not prepared to act. WebLabs are known support tools to researchers, because they allow performing experiments without the physical presence of the research team. Among the activities undertaken by the researcher, after collecting data, performs the analysis of data, in which mathematical and statistical models are applied to interpret the data. In a Weblab experiments are performed through web in remote laboratories, and also needed to analyze the data obtained with the data collection. The mathematical model used along with their interpretation are events that are part of the experiment, but are not treated that way today in Weblabs. This paper proposes the specification of reference architecture to be used as a template to allow the development of components that provide services with the ability to make the integration of data collected through scientific experiments carried out with the help of weblabs with tools aimed at environmental and biodiversity experiments. The specification is based on the paradigm of service oriented architecture, allowing management analysis using Weblab experiments and providing the services specified for operation in distributed environments. This model is the basis for a case study with the development of a proof of concept, through development of a component that publishes and distributes and integrates the data collected in a Weblab with a special tool in environmental analysis.

O presente trabalho propõe uma arquitetura de utilização de Data Warehouses em computadores móveis, descreve os componentes desta arquitetura (dados e processos) que permite o sincronismo dos dados baseado em metadados e limitado ao escopo de acesso de cada usuário. As estruturas de dados e os processos que compõem a arquitetura proposta são reduzidos a problemas conhecidos e já solucionados, justificando sua viabilidade. Além disso, o presente trabalho também fornece diretrizes para avaliar a complexidade e o impacto causados por alterações de esquema no Data Warehouse central que devem ser refletidas nos data marts localizados nas plataformas móveis. A avaliação da complexidade e impacto das alterações nos esquemas do Data Warehouse pode auxiliar os administradores do ambiente a planejar a implementação destas alterações, propondo melhores alternativas no caso de alterações de esquema mais complexas e que causem um impacto maior no ambiente. A importância do trabalho está relacionada a casos reais de necessidade de evolução nas bases de dados analíticas (Data Warehouse) em computadores móveis, nos quais os usuários mantêm seu próprio subconjunto de dados do Data Warehouse para apoiar os processos de negócios. / This work presents an architecture for using Data Warehouses in mobile computers and describes the architecture components (data and processes) that allow the data synchronism based on metadata and restricted to the scope of access for each user. The data structures and the processes composing the architecture are reduced to already known and solved problems, justifying its feasibility. Besides, this work also provides the guidelines to evaluate the complexity and impact caused by changes of schema in the central Data Warehouse that must be reflected in the data marts located in the mobile platforms. The analysis of the complexity and impact of the changes made to the schemas may help environment administrators to plan these changes and propose better alternatives when dealing with more complex schema changes causing a greater impact on the environment. The relevance of this work is related to real cases that require evolution of analytical databases (Data Warehouse) in mobile computers in which the users keep their own subset of Data Warehouse information to support their business processes.

A área de pesquisa denominada Informática para Biodiversidade enfrenta o desafio de suprir a demanda por tecnologia de apoio à conservação da biodiversidade. Dentre as áreas da ecologia que se beneficiam de recursos tecnológicos, a modelagem de distribuição de espécies se destaca pelo número de ferramentas e de algoritmos desenvolvidos para os pesquisadores da área. No entanto, estudos demostram que a modelagem tem se tornado mais complexa, bem como, a necessidade por melhorias da aplicação de novas técnicas e soluções computacionais. A interoperabilidade computacional para os dados de biodiversidade, que incluem os modelos gerados pelas ferramentas de modelagem, é citada pelos autores e pesquisadores da área como uma preocupação que demanda estudos, definição de melhores práticas e soluções de computação. Cada tópico que envolve a modelagem como, algoritmos, parâmetros, dados de ocorrência, camadas ambientais, ferramentas e técnicas para a elaboração de modelos, além dos padrões de metadados e perfis de aplicação, são objetos de estudo para que seja possível a interoperabilidade nesse campo de pesquisa. Este trabalho apresenta, portanto, uma estratégia computacional para apoiar a interoperabilidade entre os modelos gerados pelas ferramentas de modelagem de distribuição de espécies, através do uso de padrões de metadados e pelo desenvolvimento de um perfil de aplicação que apoie essa interoperabilidade. São apresentados dois estudos de caso com o objetivo de validar essas estratégias e uma arquitetura computacional para apoiar comunidades de desenvolvimento de ferramentas de modelagem a buscarem essa interoperabilidade entre os dados fornecidos e processados por elas. As contribuições deste trabalho envolvem a disponibilização de um perfil de aplicação voltado para a área de modelagem de distribuição de espécies, um protótipo de software para processar os modelos gerados pelas ferramentas de modelagem, o incentivo e o uso do digital objetct identification para disponibilização dos dados, além do processo de pesquisa e da validação de metodologias que foram utilizadas para se alcançarem os resultados desta pesquisa. / The research area called Informatics for Biodiversity faces the challenge of meeting the demand for technology to support biodiversity conservation. Among the areas of ecology that benefit from technological resources, the modeling of species distribution is notable for the number of tools and algorithms developed to researchers in this area. However, studies have shown that modeling has become more complex, as well as the need for improvements in the application of new techniques and computational solutions. The computational interoperability for biodiversity data, which includes models generated by modeling tools, is cited by authors and researchers in the field as a concern that demands studies, definition of best practices and computing solutions. Each topic that involves modeling such as algorithms, parameters, occurrence data, environmental layers, tools, techniques for the elaboration of models, standards of metadata and application profiles are objects of study of this dissertation. This thesis presents a computational strategy to support the interoperability between the models generated by the modeling tools of species distribution, through the use of metadata standards and the development of an application profile that supports this interoperability. Two case studies are presented with the objective of validating these strategies and we also present a computational architecture to support communities to develop of modeling tools to seek this interoperability between the data supplied and processed by them. The contributions of this work involve the provision of an application profile for the area of species distribution modeling, a software prototype to process the models generated by the modeling tools, the incentive and use of the digital objetct identification to make data available, and in addition to the process of research and validation of methodologies that were used to summarize the results of this research.

The purpose of this study was to investigate how metadata from Spotify could be used to identify the language of songs in a dataset containing nine languages. Features based on song name, album name, genre, regional popularity and vectors describing songs, playlists and users were analysed individually and in combination with each other in different classifiers. In addition to this, this report explored how different levels of prediction confidence affects performance and how it compared to a classifier based on audio input. A random forest classifier proved to have the best performance with an accuracy of 95.4% for the whole data set. Performance was also investigated when the confidence of the model was taken into account, and when only keeping more confident predictions from the model, accuracy was higher. When keeping the 70% most confident predictions an accuracy of 99.4% was achieved. The model also proved to be robust to input of other languages than it was trained on, and managed to filter out unwanted records not matching the languages of the model. A comparison was made to a classifier based on audio input, where the model using metadata performed better on the training and test set used. Finally, a number of possible improvements and future work were suggested.

Submitted by Maicon Juliano Schmidt (maicons) on 2015-07-13T14:45:42Z No. of bitstreams: 1 Ederson Luiz Silveira.pdf: 2898339 bytes, checksum: 95165e769c65ef95ae0cfef8141a6d81 (MD5) / Made available in DSpace on 2015-07-13T14:45:42Z (GMT). No. of bitstreams: 1 Ederson Luiz Silveira.pdf: 2898339 bytes, checksum: 95165e769c65ef95ae0cfef8141a6d81 (MD5) Previous issue date: 2013-01-31 / UNISINOS - Universidade do Vale do Rio dos Sinos / A tecnologia de objetos de aprendizagem (OA) vêm tendo uma crescente utilização em contexto educacional, oferendo recursos digitais que estão cada vez mais presentes em salas de aula e na educação a distância. Em muitos casos, esta tecnologia está presente nos ambientes educacionais de forma implícita, sem que seja necessário saber que os materiais educacionais estão incorporados em objetos de aprendizagem. Como sua utilização cresce a cada ano, surge a necessidade de ferramentas que auxiliem o processo de catalogação e de edição dos metadados destes objetos, para tornar possível a sua recuperação, reutilização e alteração dos objetos. Para prover apoio a este processo de catalogação, a presente dissertação apresenta o sistema Linnaeus de suporte a catalogação de objetos de aprendizagem e edição de metadados, que através da junção das tecnologias de agentes inteligentes e da web semântica, na forma de wizards e de ontologias educacionais, se propõe a fornecer um apoio inteligente e pró-ativo, ajudando usuários sem conhecimentos técnicos sobre metadados ou padrões de objetos de aprendizagem a catalogar de forma correta seus objetos. / Learning objects (LO) are getting more importance in the education environment, providing digital resources that are increasingly common in both classrooms and e-learning teaching. Nowadays, these objects can be found in educational materials, without being explicitly defined as learning objects. During the latest years the use of learning objects is growing up, bringing with that the necessity of solutions for the cataloging and editing metadata information about these objects to make possible the recovery, reuse and even the change of these objects. To give support for this task, this dissertation proposes an intelligent learning object metadata editor, the Linnaeus system, which will provide help for the cataloging process of learning objects through the use of intelligent agents, and semantic web technologies, in the form of editing wizards and learning domain educational ontologies.

The purpose of this Master's thesis is to study metadata and its use at Web sites of six Swedish universities and colleges. Each Web site has been examined at three different hierarchical levels and the total number of examined Web pages is 258. 16 questionnaires have also been sent to webmasters at the six universities and colleges. The results show that metadata refers to the data which can assist to organize, describe, identify, locate, evaluate and retrieve resources on the Internet. Even though there are several different metadata formats available on the Internet, the commercial search engines only support the HTML's title tag and the meta tags with the attributes keywords and description. The six examined Web sites use the meta tag to some extent. The metadata format Dublin Core is represented in a small number of the examined Web pages. Search engines usually present the title tag and the description tag of Web pages in the search results. Therefore, it seems especially important to provide good title and description tags. The study of the three different hierarchical levels at each Web site shows a difference in the use of metadata. At some levels the HTML's meta tag is not used at all. In the questionnaires, the webmasters describe the Web sites as decentralized, where each webmaster only answers for his/her part of the Web site. The differences in the use of metadata could be due to each webmaster's interest and knowledge of metadata. / Uppsatsnivå: D

The aim of this thesis is to examine collaborative tagging as a potential asset to libraries by a review of 10 social bookmarking sites and their features, and a discussion of these features’ possible use when the environment changes from the web to a library. Previous research on collaborative tagging is presented, as well as overviews of social bookmarking, folksonomies and the concept of Web 2.0 and Library 2.0. The study itself is presented as a walkthrough of common features and how they work, followed by a schematic overview of which sites have which features. Finally each site is presented in a more detailed manner. An example of social bookmarking within a library, PennTags, is then also described. The results show that there are great differences to be found among the social bookmarking sites, in both features and in which tools they offer. As some features have become more common since previous similar studies, there are also one or two unique features for almost every site. Many of the younger sites have adopted the more social approach instead of being mainly an organizational tool, with an emphasis on features like groups and lists of friends. The analysis uses previous research and the results combined to answer which features could be suitable for a library environment, and how to use them. The conclusion is that many features can be considered useful in a library portal, although not all, and that the motives and preferences of each library affect which features are suitable. / Uppsatsnivå: D

In this thesis, the TEI (Text Encoding Initiative) encoding scheme is investigated as a system for storing metadata about manuscript material and 18th century first prints in the Swedenborg Archives at the Swedish Royal Academy of Sciences. The aim of the study is to test the functionality of TEI as a metadata system in cataloguing a special collection. Some criteria of functionality are formulated, and examples of encoded catalogue entries are described and analysed. It is demonstrated how descriptive metadata have been registered within the TEI header, while structural metadata have been recorded within the text element of the TEI file. On the whole, TEI is considered to be a functional tool that matches the present purposes. Some weaknesses are pointed to, however: For example, the TEI encoding scheme is not perceived to be fully satisfying for presenting descriptive metadata about manuscripts and prints in the same volume, and, moreover, it is not considered fully appropriate for describing abstract logical text structure in relation to the physical structure of the document. Lastly, TEI is compared to two other metadata systems, the AACR2, ch. 4, and AMREMM. A general conclusion is that the TEI offers a set of guidelines that can easily be adapted to specific needs, while a system for cataloguing in a more proper sense must also contain a set of rules concerning what categories of data are to be included, and in what form it is to be done. / Uppsatsnivå: D

The National Libraries task to save and preserve the national cultural heritage has turned to a new challenge in a digital world. The preservation of born-digital material for future use requires not only saving the digital object itself but also information about the object, preservation metadata. This is a relatively new issue and the library community has very little experience in this area. It has become evident that international cooperation is necessary to solve the task and that the development of international standards is of fundamental significance. This thesis investigates what has been done to meet the problems with the fast obsolescence of digital material with the focus on metadata. It examines the international collaboration in this area and the results. Ten European national libraries were inquired and their approach to long term preservation of the born-digital heritage concerning collection and strategies for handling of preservation metadata. The study shows that the Scandinavian countries began collecting with web harvesting while most countries in Central Europe work with deliveries. It is also shown that the regional differences are becoming smaller and that today most of the countries are following a combined approach. Web harvesting requires a different management of metadata than digital deliveries. However, within the different methods the solutions are rather close. / Uppsatsnivå: D

The aim of this bachelor thesis is to study how libraries handle metadata in institutional repositories. The methodology of the study is semi-structured interviews with librarians from all Swedish libraries that currently use the institutional repository system DSpace. Metadata schemes from the different libraries have also been studied. As analytical tools the study uses the user tasks presented in Functional Requirement for Bibliographic Records, as well as a study of metadata quality made by Jung-Ran Park. The study shows a rather big difference between the ways the libraries use institutional repositories. Some of the libraries use their repository as a full text database, while others use it for all publications within the organization with bibliometric functions. The study also shows that there is a difference in the use of metadata. Some of the libraries use the metadata elements created by Dublin Core Metadata Initiative, while others create their own elements. / Program: Bibliotekarie