Thesis (Ph. D.)--University of Pittsburgh, 1980. / Typescript. Includes bibliographical references (leaves 149-152).

by J. Francis Reintjes. / Bibliography: p. 76-77. / "March, 1982."

Doctor of Philosophy / Department of Computer Science / William H. Hsu / Current research in the field of recommender systems takes into consideration the interaction between users and items; we call this the homogeneous setting. In most real world systems, however these interactions are heterogeneous, i.e., apart from users and items there are other types of entities present within the system, and the interaction between the users and items occurs in multiple contexts and scenarios. The presence of multiple types of entities within a heterogeneous information network, opens up new interaction modalities for generating recommendations to the users. The key contribution of the proposed dissertation is representation learning in heterogeneous information networks for the recommendations task. Query-based information retrieval is one of the primary ways in which meaningful nuggets of information is retrieved from large amounts of data. Here the query is represented as a user's information need. In a homogeneous setting, in the absence of type and contextual side information, the retrieval context for a user boils down to the user's preferences over observed items. In a heterogeneous setting, information regarding entity types and preference context is available. Thus query-based contextual recommendations are possible in a heterogeneous network. The contextual query could be type-based (e.g., directors, actors, movies, books etc.) or value-based (e.g., based on tag values, genre values such as ``Comedy", ``Romance") or a combination of Types and Values. Exemplar-based information retrieval is another technique for of filtering information, where the objective is to retrieve similar entities based on a set of examples. This dissertation proposes approaches for recommendation tasks in heterogeneous networks, based on these retrieval mechanisms present in traditional information retrieval domain.

With the development of the information network technologies and the popularisation of the Internet, Chinese society is experiencing a Triple Revolution. Regulating the Internet has become a priority in China. In this context, this study seeks a comprehensive and in-depth understanding of China's Internet regulatory mechanism. Through the systematical analysis on Internet law in China, supplemented by the case study on how the issue of the Occupy Movement in Hong Kong was regulated, this study argues that China has developed a hybrid Internet regulatory model, which values both external defense and internal control in pursuit of the goal of cybersecurity, and which combines hierarchical regulation with horizontal monitoring to address challenges brought by contemporary network society. The Internet panoptic-fortification model is developed to illuminate China's Internet regulatory mechanism. The Internet panoptic-fortification model is featured by the centralised control from the authorities and ISPs, the establishment of Chinese sovereign cyberspace with jurisdictional and technical supports, the implementation of the network real-name system and the Internet-surfing record backup system to regulate individual Internet users, and the tight ideological control. This conceptual model reflects important aspects of Michel Foucault's account of governmentality, incorporating both centralised power and diffuse micro-power. This study suggests that China's Internet law to some extent has become an instrument for the state to promote the social discipline in the sovereign cyberspace, and the Internet regulatory mechanism serves for the national security and social stability in a broader context.

The study examines social movement resource mobilization in the age of the network society. In the traditional model of Resource Mobilization Theory (RMT), material and human resources, as well as the legitimacy gained for a movement from the mass media, play crucial roles in mobilization. In the contemporary epoch of informationalism and network society, a large variety of instant communication technologies penetrate everyday life, bringing a lifestyle characterized by the intensive integration between technologies and social life. By studying the cases of two recent social movements, which witnessed the networking of different organizations/individuals and their wide use of new technologies, this research tries to identify what sorts of movement resources are employed in the mobilization process, and what the resource mobilization process is like in the paradigm of informationalism and network society. Regarding the traditional RMT, scholars identified the missing link between the movement side and the general public in terms of empathy arousal. Despite that political opportunity process theorists largely added contextual elements, they concentrated on mainstream political institutional change, but still neglecting the role of historical and social culture, and people’s role as active agency. In this study, the author also integrates the cultural aspects as a type of immaterial resource to produce a broader look into movement resources. The two cases investigated are: the anti-moral-and-national-education movement (anti-M&N) in Hong Kong and the anti-media-monopoly movement (anti-monopoly) in Taiwan. This research was conducted using a qualitative approach, employing in-depth interviews and archive study as the major methods. Results show that the traditional resources, such as resource-rich movement organizations, professionals and those possessing fruitful movement experiences are still indispensable. However, it is noteworthy that technologically adept activists have gained an increasingly important position. Their tech-savvy capabilities make them at once information archivist, movement message translator and disseminator. In addition, their heavy use of online platforms has facilitated groups which lack resources to “out-source the provision of resources to a rhizomatic movement network. In this sense, with networking taking place between those who possess resources and the tech-savvy activists, between the core and the rhizomatic participants, a networked alliance has been formed as an important resource to today’s social movements. In traditional resource mobilization theory, the mass media was regarded as an important source to legitimize the movement. In these cases, besides the legitimacy gained from certain types of mass media, the activists also presented the movement’s messages strategically, by bridging the movements with social expectation and embedding in the historical context. By this means, the activists drew wider attention to anxieties about identity. In the light of the fact that Hong Kong and Taiwan are in the eye of the storm against the backdrop of China’s rising power, the issue of identity anxiety in these two societies may provide a direction for further research. Keywords: resource mobilization, network society, Hong Kong, Taiwan

Made available in DSpace on 2014-06-11T19:26:18Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-01-28Bitstream added on 2014-06-13T20:15:04Z : No. of bitstreams: 1 rufo_cr_me_bauru.pdf: 1756491 bytes, checksum: 598fce113bed6b914d866bb1aadac599 (MD5) / Este estudo propõe uma abordagem metodológica para analisar como os fatores posicionais (esetrutural e relacional) de uma rede de fornecimento podem afetar a flexibilidade de uma empresa calçadista infantil. A abordagem foi aplicada em uma rede delimitada e mapeada a partir de uma empresa focal (hub) e outros seis atores identificados como principais no fornecimento de materiais/serviços diretos. O método de pesquisa utilizado foi principalmente qualitativo e a técnica empregada foram as etapas formais de estudo de caso para garantir a validade do estudo. A abordagem proposta e sua aplicação permitiu concluir que: a empresa focal (hub) é de fato considerada um ator central e por isso tem prioridade no atendimento de sua estratégia de flexibilidade; a estrutura geral da rede é estável, marcada em sua maior parte por relacionamentos de longo prazo, o que tem beneficiado o alinhamento estratégico; a rede é grande e difusa, o que contribui para a propagação de informações e propicia o ambiente ideal para inovações e novos negócios, porém, seu núcleo é denso e coeso, o que confere maior integração entre seus principais elos, favorecendo o fluxo de informações e recursos que são essenciais para o atendimento da demanda flutuante, solicitações de alterações de entregas, típicas do setor, e desenvolvimentos constantes. Observou-se ainda que o limite da rede são os fornecedores do primeiro nível, e que parece existir pouca disposição dos atores dos demais níveis no alinhamento estratégico com o setor. Na pesquisa de campo também foi possível entender que existe alinhamento dos fornecedores para o atendimento da estratégia de flexibilidade adotado pela empresa, considerando-se assim que todos os objetivos propostos no estudo foram atendidos / This study proposes an approach to analyze how positional (structural and relacional) in a supply chain can affect the flexibility of an infant footwear company. The approach was applied to a network defined and mapped from a company (hub) and six others identified as major actors in the supply of materials /services direct. The research method used was primarily qualitative and technique were the formal steps of a case study to ensure the validity of the study. The proposed approach and its application to the conclusion that: a focal company (hub) is in fact considered a key player and so has priority in meeting is strategy of flexibility, the overall structure of the network is stable, marked mostly by long-term relationships, which has benefited the strategic alignment, the network is large and diffuse, which contributes to the spread of information and provides the ideal environment for innovations and new business, but its core is dense and cohesive, which gives greater integration between its main chain, promoting the flow of information and resources that are essential to meet the fluctuating demand, change requests delivery, typical of the industry, and constant development. It was also observed that the limit of network providers are the first level, and there seems to be little willingness of the actors of the other levels in alignment with the strategic sector. In the field research was also possible to understand that there is alignment of suppliers to meet the flexibility strategy adopted by the company, considering how all proposed objectives in the study were met

Orientador: José Paulo Alves Fusco / Banca: Fernando Bernardi de Souza / Banca: Andreia Marize Rodrigues / Resumo: Este estudo propõe uma abordagem metodológica para analisar como os fatores posicionais (esetrutural e relacional) de uma rede de fornecimento podem afetar a flexibilidade de uma empresa calçadista infantil. A abordagem foi aplicada em uma rede delimitada e mapeada a partir de uma empresa focal (hub) e outros seis atores identificados como principais no fornecimento de materiais/serviços diretos. O método de pesquisa utilizado foi principalmente qualitativo e a técnica empregada foram as etapas formais de estudo de caso para garantir a validade do estudo. A abordagem proposta e sua aplicação permitiu concluir que: a empresa focal (hub) é de fato considerada um ator central e por isso tem prioridade no atendimento de sua estratégia de flexibilidade; a estrutura geral da rede é estável, marcada em sua maior parte por relacionamentos de longo prazo, o que tem beneficiado o alinhamento estratégico; a rede é grande e difusa, o que contribui para a propagação de informações e propicia o ambiente ideal para inovações e novos negócios, porém, seu núcleo é denso e coeso, o que confere maior integração entre seus principais elos, favorecendo o fluxo de informações e recursos que são essenciais para o atendimento da demanda flutuante, solicitações de alterações de entregas, típicas do setor, e desenvolvimentos constantes. Observou-se ainda que o limite da rede são os fornecedores do primeiro nível, e que parece existir pouca disposição dos atores dos demais níveis no alinhamento estratégico com o setor. Na pesquisa de campo também foi possível entender que existe alinhamento dos fornecedores para o atendimento da estratégia de flexibilidade adotado pela empresa, considerando-se assim que todos os objetivos propostos no estudo foram atendidos / Abstract: This study proposes an approach to analyze how positional (structural and relacional) in a supply chain can affect the flexibility of an infant footwear company. The approach was applied to a network defined and mapped from a company (hub) and six others identified as major actors in the supply of materials /services direct. The research method used was primarily qualitative and technique were the formal steps of a case study to ensure the validity of the study. The proposed approach and its application to the conclusion that: a focal company (hub) is in fact considered a key player and so has priority in meeting is strategy of flexibility, the overall structure of the network is stable, marked mostly by long-term relationships, which has benefited the strategic alignment, the network is large and diffuse, which contributes to the spread of information and provides the ideal environment for innovations and new business, but its core is dense and cohesive, which gives greater integration between its main chain, promoting the flow of information and resources that are essential to meet the fluctuating demand, change requests delivery, typical of the industry, and constant development. It was also observed that the limit of network providers are the first level, and there seems to be little willingness of the actors of the other levels in alignment with the strategic sector. In the field research was also possible to understand that there is alignment of suppliers to meet the flexibility strategy adopted by the company, considering how all proposed objectives in the study were met / Mestre

Orientador: Nelson Luis Saldanha da Fonseca / Dissertação (mestrado profissional) - Universidade Estadual de Campinas, Instituto de Computação / Made available in DSpace on 2018-08-10T07:17:50Z (GMT). No. of bitstreams: 1 Almeida_AriovaldoVeigade_M.pdf: 2189352 bytes, checksum: 462a8f6e902e4a7c90c190b1322de0e5 (MD5) Previous issue date: 2006 / Resumo: As Redes de Armazenamento de Dados oferecem aos sistemas computacionais acesso consolidado e compartilhado aos dispositivos de armazenamento de dados, aumentando sua eficiência e disponibilidade. Elas permitem que os dispositivos de armazenamento de dados de diferentes fornecedores, mesmo que usem diferentes protocolos de acesso, possam ser logicamente disponibilizados para acesso. Elas permitem que as funções de gerenciamento de dados, como backup e recuperação, replicação de dados, ambientes de recuperação de desastres, e migração de dados, possam ser realizados de maneira rápida e eficiente, com o mínimo de sobrecarga nos sistemas computacionais. Na década de 80, observou-se a descentralização dos sistemas computacionais que evoluíram dos ambientes centralizados, como no caso dos sistemas mainframe, para plataformas distribuídas, onde os sistemas eram separados em blocos operacionais, com cada um dos blocos realizando uma função específica. Não foram somente os sistemas computacionais que evoluíram, mas também os sistemas de armazenamento de dados evoluiram para arquiteturas distribuídas. A evolução natural dos dispositivos de armazenamento de dados dos sistemas computacionais foi do uso de conexão direta e dedicada aos computadores para uma forma mais flexível e compartilhada. A forma adotada foi através do uso de infra-estruturas das redes de computadores. Este trabalho analisa as tecnologias das redes de armazenamento de dados Storage Área Networks (SAN) e Network Attached Storage (NAS), que são as principais arquiteturas que utilizam as tecnologias de redes para o armazenamento e compartilhamento de dados. Enfoca-se as vantagens decorrentes dessas arquiteturas quando comparadas com a forma tradicional de conexão direta do dispositivo de armazenamento de dados aos computadores, a denominada arquitetura Direct Attached Storage (DAS) / Abstract: Storage Networks offer shared access to data storage devices, increasing the efficiency and the availability of storage data. They allow data storage devices, from different suppliers, using different access protocols, to be logically available for access. They also allow management of data, backup and recovery, data replication, disaster recovery environments, and data migration can be done in a fast and efficient way, with minimum overhead to the computer systems. In the 80¿s, we observed the decentralization of the computational systems. They evolved from a centralized environment to distributed platforms, where systems were separated in operational blocks, with each block executing specific functions. Both the computational systems and the storage envolved to a distributed architecture. The natural evolution of the storage devices was to move from the direct connection to computational systems to a more flexible and shared approach. This happened by the adoption of infrastructures used by computer networks. This work analyzes Storage Networks architectures: Storage Area Network (SAN) and Network Attached Storage (NAS), which are the main architectures that employ computer networks technologies. We will show the advantages of these architectures compared to the traditional form of direct connection of storage devices to computers, the named Direct Attached Storage (DAS) architecture / Mestrado / Redes de Computadores / Mestre em Computação

Orientador: Antonio Batocchio / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica / Made available in DSpace on 2018-08-16T09:26:29Z (GMT). No. of bitstreams: 1 SotoRojas_EvelynPaola_M.pdf: 5171849 bytes, checksum: 04d3c143de8cea7e67e28bdc411bcf47 (MD5) Previous issue date: 2010 / Resumo: Hoje, para lidar com os permanentes desafios do ambiente de negócios que cada vez se torna mais dinâmico, competitivo e global, as organizações estão inovando na sua forma de relacionamento para responder com maior flexibilidade e agilidade estas mudanças e adaptar-se à nova realidade mundial. Neste contexto, estão surgindo novas estruturas organizacionais baseadas na colaboração, sendo a Empresa Virtual uma das configurações que facilita explorar uma oportunidade de negócio emergente da melhor forma possível. Define-se Empresa Virtual como uma aliança temporária de organizações geograficamente distribuídas que compartilham habilidades ou competências essenciais para atender uma oportunidade de negócio específica (CAMARINHA MATOS e AFSARMANESH, 2008). Devido às características da Empresa Virtual é necessário que se verifique um aumento de qualidade nas formas de interação, partilha de recursos e informação entre os membros da rede, procurando um envolvimento mais rico e complexo das pessoas em formas eficazes de colaboração. Diante deste contexto, este trabalho propõe a implementação de uma nova tecnologia colaborativa: Enterprise 2.0 que surgiu pela evolução da segunda geração das tecnologias da Internet, visando dar suporte na gestão da informação e do conhecimento das Empresas Virtuais / Abstract: Today, in order to address the ongoing challenges of business environment that increasingly becomes more dynamic, competitive and global; organizations are innovating the way they operate to respond with greater flexibility and agility of these changes adapting to the new global reality. In this context, new organizational structures based on collaboration are emerging, being Virtual Enterprise one configuration that makes easy to explore business opportunities emerging in the best way possible. The Virtual Enterprise is defined as a temporary alliance of geographically dispersed organizations that come together to share skills or core competencies to meet a specific business opportunity (CAMARINHA MATOS e AFSARMANESH, 2008). Due to the characteristics of Virtual Enterprise is necessary to verify a quality increase in the way they interact, sharing resources and information between networking members, looking for a more rich and complex involvement of people in effective ways of collaboration. In this context, this work proposes the application of a new collaborative technology: Enterprise 2.0 that emerged due the development of the second generation of Internet technologies in order to give information management and knowledge management support in Virtual Enterprises / Mestrado / Materiais e Processos de Fabricação / Mestre em Engenharia Mecânica

The goals of this thesis are to identify the objectives for creating a Sustainable Community Network (SCN) within B.C., to acknowledge the various tools available to facilitate the network, and to develop illustrative models to guide those contemplating the establishment of a network. Three primary research methods were utilized in this project: literature reviews, group discussion in a focus workshop, and individual interviews. The literature reviewed focused on the fields of collaboration, networks in both technical and social capacities, and coalitions. Four objectives are identified as motives to create a SCN: to provide exchange mechanisms, to organise the "unformalized" field, to create a community of interest, and to be a vehicle for power, influence and empowerment. The emphasis at the beginning should be on building personal relationships over creating an electronic network. Other specific products and services are identified as beneficial for the stakeholders: newsletters, conferences, inventories, facilitation, and a clearinghouse for information. Alternatives for administering the network include a network manager, an administrative body, a governing body, and an intermediary broker. This research helps define networks within the field of planning. They may act as a support system, streamline efforts through collaboration or by reducing duplication of effort, act as a forum for monitoring and assessment activities, and be a source for on-going public participation. Three conceptual models are developed representing a range of possibilities for creating the network. The models are labeled the "Fundamental Network" at the basic level, the "Coalition Network", and the "Collaborative Network" at the most complex level. The need for a SCN is reconfirmed. The network should proceed from a "human scale" and develop the capabilities of the electronic network as computer literacy and technological capacity become generally available. Finally, it is recommended that the network should proceed slowly, building on community objectives and incorporating the diverse activities possible through collaboration as experience is gained. Further research is needed to clarify the potential for networks in planning and management, to better understand the evolving place for computer technology, and to monitor the effectiveness of the networks as they are implemented. / Applied Science, Faculty of / Community and Regional Planning (SCARP), School of / Graduate