Este trabalho explora o uso da Análise de Redes Sociais (ARS) como ferramenta de grande valor, aquela que perpassa pelas mais variadas disciplinas, como protagonista do estudo em alguns casos, como coadjuvante em outros. Para a Ciência da Informação, a ARS vem sendo empregada em estudos bibliométricos, procurando responder a questionamentos que intrigam pesquisadores da área ou de outros segmentos do conhecimento. Assim, a ARS ocupa seu espaço como o objeto principal dos estudos, enfatizando-a como ferramenta e, também, pelo seu uso direto em pesquisas nas quais aparece, frequentemente em conjunto com a estatística. Dessa forma, a ARS é empregada, pensando em Ciência da Informação, em ambos os papéis: como protagonista, nas frentes que abordam sua história, seus métodos e suas métricas, e, como coadjuvante, contribuindo na análise de redes de coautoria através de suas métricas de centralidade, mostrando a fluência das informações, determinando a posição de autores com relação à colaboração e seus comportamentos em rede para áreas como a Ciência da Informação, a Educação e a Sociologia. Os gráficos e tabelas foram elaborados com o apoio dos programas Microsoft Excel e, fundamentalmente para as redes de interesse, o programa de uso livre Pajek. Este último, alimentado por programas em VBScript, possibilitou, através de seus recursos de geração de imagens representativas das redes, a confecção dos gráficos e o cálculo dos indicadores para cada uma das três redes. Para a obtenção dos dados de entrada, foram utilizados os mecanismos de busca pela expressão \"Social Networks\" nas bases ASSIA (Sociologia), ERIC (Educação) e LISA (Ciência da Informação) e, com o uso de seus mecanismos internos, a massa foi exportada e empregada como exemplo de bases viabilizando a aplicação e verificação da metodologia proposta nos moldes dos estudos realizados. / This dissertation explores the use of Social Network Analysis (SNA) as a valuable tool, which runs through the most varied disciplines, as a protagonist in same study cases, as an adjunct in other cases. For the Information Science, the SNA has been used in bibliometric studies, trying to answer questions that intrigue researchers in this field or other segments of knowledge. So, the SNA occupies its place as the main object of the studies, emphasizing it as a tool and also for its direct use in researches in which it appears, often in conjunction with the statistics. Thus, the SNA is used, concerning the Information Science, in both roles: as the protagonist, foremost addressing its history, its methods and metrics, and, as an adjunct, contributing for the analysis of networks of co-authorship through its centrality metrics, showing the flow of information, determining the position of the authors, related to their collaboration and their behaviors on the network, for areas of study such as Information Science, Education and Sociology. The graphs and charts were elaborated with the support of Microsoft Excel program and, fundamentally to the networks of interest, the program of free use called Pajek. The latter, powered by VBScript programs, enabled, through its resources of generating representative network images, the elaboration of the graphs and the calculation of the indicators for each one of the three networks. To obtain the input data, search engines were used by the expression \"Social Networks\" in ASSIA (Sociology), ERIC (Education) and LISA (Information Science) bases and, using its internal mechanisms, the mass was exported and used as an example of bases enabling the application and verification of the proposed methodology along the lines of the studies.

O compartilhamento das informações no ambiente organizacional é um elemento relevante para a geração e a introdução de novos conhecimentos. O objetivo deste estudo foi identificar os componentes da colaboração coletiva: mídia social, comunidade e propósito na gestão do Instituto Federal de Ensino Superior. Para atingir os objetivos do trabalho foi adotada, estrategicamente a triangulação de três tipos de pesquisa que se complementam em seus objetivos e técnicas: pesquisa bibliográfica, pesquisa documento e pesquisa qualitativa, por tratar-se de um estudo de caso. A pesquisa caracteriza-se como descritiva, de abordagem qualiquantitativa, com delineamento de estudo de caso. Na Análise Documental a caracterização do instituto e avaliação de desempenho institucional com a compilação das avaliações que geraram as notas de desempenho por fração funcional realizada em 2014. Quanto à percepção dos gestores em relação ao uso dos canais de comunicação foram encaminhados 96 questionários. Pesquisa concluída com o retorno de 80 questionários que equivale a 83,3% do total. A percepção dos gestores em relação ao uso dos canais de comunicação também foi discutida. Nos resultados e análise temática foram examinadas as trocas ocorridas no Office Communicator para o desenvolvimento da campanha colaborativa de qualidade de vida. A cada assunto trazido à mesa virtual de debates, mais pessoas eram conectadas e convidadas a entrar na discussão. A importância hoje não está mais no know how (Saber Fazer), mas, sim no know who (Quem Sabe). Assim este trabalho abordou as redes de colaboração internas sob a perspectiva do processamento humano da informação e do capital social, bem como dos suportes de comunicação online que ampliam sua utilização dentro das organizações. / The sharing of information in the organizational environment is a relevant element for generation and the introduction of new knowledge. The aim of this study was to identify the components of collective collaboration: social media, community and purpose in the management of the Federal Institute of higher education. To achieve the objectives of this work was adopted, strategically the triangulation of three types of research that are complementary in their objectives and techniques:bibliographical research, document research and qualitative research, as a case study. The research is characterized as descriptive, qualitative-quantitative approach, with case study design. In the documentary analysis the Institutes characterization and evaluation of institutional performance with the compilation of the evaluations that have generated the performance notes for functional fraction held in 2014. As for the perception of managers regarding the use of the channels of communication were sent 96 questionnaires. Research completed with the return of 80 questionnaires which equals 83,3%. The perception of managers regarding the use of the channels of communication was also discussed. The results and thematic analysis were examined the trading occurring in Office Communicator for the development of collaborative quality-of-life campaign. Every issue brought to the virtual table of debates, more people were connected and invited to join in the discussion. The importance today is no longer in the know-how (Knowledge), but in the know who (who knows). So this work addressed internal collaboration networks from the perspective of the human information processing and social capital, as well as online communication media that extend their use inside organizations.

With the ever-growing demand for higher data rate in next generation communication systems, researchers are pushing the limits of the existing architecture. Due to the stochastic nature of communication channels, most systems use some form of adaptive methods to adjust the transmitting parameters and allocation of resources in order to overcome channel variations and achieve optimal throughput. We will study four cases of adaptive transmission and dynamic resource allocation in collaborative systems that are practically significant. Firstly, we study hybrid automatic repeat request (HARQ) techniques that are widely used to handle transmission failures. We propose HARQ policies that improve system throughput and are suitable for point-to-point, two-hop relay, and multi-user broadcast systems. Secondly, we study the effect of having bits of mixed SNR qualities in finite length codewords. We prove that by grouping bits according to their reliability so that each codeword contains homogeneous bit qualities, the finite blocklength capacity of the system is increased. Thirdly, we study the routing and resource allocation problem in multiple collaborative networks. We propose an algorithm that enables collaboration between networks which needs little to no side information shared across networks, but rather infers necessary information from the transmissions. The collaboration between networks provides a significant gain in overall throughput compared to selfish networks. Lastly, we present an algorithm that allocates disjoint transmission channels for our cognitive radio network in the DARPA Spectrum Collaboration Challenge (SC2). This algorithm uses the real-time spectrogram knowledge perceived by the radios and allocates channels adaptively in a crowded spectrum shared with other collaborative networks.

Approved for public release, distribution is unlimited / Singapore and many parts of Asia were hit with Severe Acute Respiratory Syndrome (SARS) in March 2003. The spread of SARS lead to a rapidly deteriorating and chaotic situation. Because SARS was a new infection, there was no prior knowledge that could be referenced to tackle such a complex, unknown and rapidly changing problem. Fortunately, through sound measures coupled with good leadership, quick action and inter-agency cooperation, the situation was quickly brought under control. This thesis uses the SARS incident as a case study to identify a set of network centric warfare methodologies and technologies that can be leveraged to facilitate the understanding and management of complex and rapidly changing situations. The same set of methodologies and technologies can also be selectively reused and extended to handle other situations in asymmetric and unconventional warfare. / Office of Force Transformation, DoD US Future Systems Directorate, MINDEF Singapore. / Lieutenant, Republic of Singapore Army / Civilian, Defence Science and Technology Agency, Singapore

Die seit Jahren anhaltende digitale Transformation erfährt durch neue, innovative Prozesse, Methoden und Technologien erneut ein atemberaubendes Wachstum in allen Bereichen. Entlang eines jeden Produktlebenszyklus werden unter den aktuellen Trends wie z.B. Systems Engineering, Industrie 4.0 und Internet of Things vielfältige Lösungen geschaffen, um vor allem die digitale Repräsentanz eines Produktes sowie der zu deren Herstellung notwendigen Produktionsmittel und der betreffenden Umgebung beim Betrieb des Produktes zu erschaffen bzw. auszubauen. Die digitale Repräsentanz, der sog. „Digitale Zwilling“ (oder auch 'Digitale Schatten') dient vor allem dazu, die Durchgängigkeit und Nachvollziehbarkeit aller produktrelevanten und -bezogenen Informationen sicherzustellen und für unterschiedlichste Szenarien und Stakeholder nutzbar zu machen. Die Informationen im Product Life-cycle Management (PLM) durchlaufen dabei unterschiedliche Reifegrade. In den Spezifikationsphasen werden die Informationen im Soll-Zustand auch gern als „Digitaler Master“ bezeichnet. [...]

Ziel dieses Beitrages ist es, aufzuzeigen und an einem Beispielszenario exemplarisch darzustellen, wie mit Hilfe von an Hochschulen verfügbaren Standardtechnologien flexible kooperative und kollaborative Lehr- und Lernumgebungen je nach Bedarf und Möglichkeiten generiert und in Anwendungsszenarien mit vielen verschiedenen Lehr- und Lernprinzipien, Lehrmethoden, Lehrtechniken sowie Lehrressourcen eingesetzt werden können. Gleichzeitig soll mit den Möglichkeiten solcher Netzwerke auf die neuen Anforderungen der Arbeitswelt, den veränderten gesellschaftlichen und technischen Rahmen- bzw. Lehr- und Studierbedingungen reagiert und Mehrwerte generiert werden können. Zur Verdeutlichung des Ansatzes soll ein Anwendungsszenario aus der Ausbildung von Landschaftsarchitekten (Semesterprojekt „Landschaftsplanerische Studie“ sowie „Objekt- und Ausführungsplanung“) vorgestellt werden. Dieses Szenario kann auf andere Planungs- und Anwendungsdisziplinen der Ingenieurdisziplinen und vor allem dem Bau- und Anlagewesen übertragen werden. [... aus Punkt 1]

In dieser Arbeit werden Unternehmensnetzwerke aus einer abhängigkeitsbasierten Perspektive betrachtet und es wird ein Beitrag zum Management solcher Netzwerke geleistet. Unter dem Begriff Management wird im Kontext dieser Arbeit die ganzheitliche Planung, Kontrolle und Steuerung verstanden. Dabei wurden in sechs wissenschaftlichen Erst- und Koautorenschaften diverse gestaltungsorientierte Forschungsergebnisse in Form von Design-Science-Artefakten entwickelt. Mit deren Hilfe können Managementaktivitäten in den Bereichen Business-IT-Alignment, Partnerauswahl in Netzwerken, sowie IT-Governance auf der Basis von Abhängigkeiten mit interorganisationaler Ausprägung betrachtet und gemeistert werden. In dieser kumulativen Dissertationsschrift werden die Resultate entlang des Lebenszyklus von Unternehmensnetzwerken eingeordnet, wodurch die Relevanz der eingereichten Artikel auf die einzelnen Netzwerklebensphasen gespiegelt wird. Zudem werden sowohl theoretische als auch praktische Implikationen der Resultate diskutiert. Insgesamt tragen sowohl die ganzheitliche Sichtweise als auch der interdisziplinäre Charakter der Ausarbeitungen zu einem gesteigerten Verständnis von Abhängigkeitsbeziehungen in Unternehmensnetzwerken bei.