402 research outputs found

    Cooperative hierarchical resource management for efficient composition of parallel software

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    Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2010.Cataloged from PDF version of thesis.Includes bibliographical references (p. 93-96).There cannot be a thriving software industry in the upcoming manycore era unless programmers can compose arbitrary parallel codes without sacrificing performance. We believe that the efficient composition of parallel codes is best achieved by exposing unvirtualized hardware resources and sharing these cooperatively across parallel codes within an application. This thesis presents Lithe, a user-level framework that enables efficient composition of parallel software components. Lithe provides the basic primitives, standard interface, and thin runtime to enable parallel codes to efficiently use and share processing resources. Lithe can be inserted underneath the runtimes of legacy parallel software environments to provide bolt-on composability - without changing a single line of the original application code. Lithe can also serve as the foundation for building new parallel abstractions and runtime systems that automatically interoperate with one another. We have built and ported a wide range of interoperable scheduling, synchronization, and domain-specific libraries using Lithe. We show that the modifications needed are small and impose no performance penalty when running each library standalone. We also show that Lithe improves the performance of real world applications composed of multiple parallel libraries by simply relinking them with the new library binaries. Moreover, the Lithe version of an application even outperformed a third-party expert-tuned implementation by being more adaptive to different phases of the computation.by Heidi Pan.Ph.D

    Implementing Connectivity Conservation in Canada

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    Dublin Smart City Data Integration, Analysis and Visualisation

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    Data is an important resource for any organisation, to understand the in-depth working and identifying the unseen trends with in the data. When this data is efficiently processed and analysed it helps the authorities to take appropriate decisions based on the derived insights and knowledge, through these decisions the service quality can be improved and enhance the customer experience. A massive growth in the data generation has been observed since two decades. The significant part of this generated data is generated from the dumb and smart sensors. If this raw data is processed in an efficient manner it could uplift the quality levels towards areas such as data mining, data analytics, business intelligence and data visualisation

    2022 Worker\u27s Compensation Institute

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    Meeting proceedings of a seminar by the same name, held November 9, 2022

    Some experiments in man-machine interaction relevant to computer assisted learning

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    Various techniques for the communication of instructional material are outlined. Some experiments relevant to the design of multi-media computer assisted learning systems are then described

    The influence of supply chain integration and green supply chain management practices on sustainable firm performance - in Thai manufacturing industry

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    Sustainability become a new challenge for various dimensions, not only in academic area, but also has managerial perspectives. Consequently, to achieve competitive advantage, leading to sustainable performance, organisations need to explore what are the causes of the sustainable performance of the firm and how to manage them. Currently, natural environmental impact is more likely to be a critical problem for any organisation. Based on natural resource-based view of the firm (Hart, 1995), natural environmental issues can make a firm obtain new potential specific resources that are difficult to imitate by other organisations. Such resources can be created by supply chain integration (SCI) and also green supply chain management (GSCM) practices. However, there is inconclusive about the impact of SCI and GSCM practices on sustainable performance, in terms of evidence environmental and economic perspective. Therefore, the aim of this study is to understand the relationship between SCI, GSCM practices and sustainable performance, both direct and indirect effect of the relations.Base on survey method, this research used manufacturers in Thailand as a sample of the developing countries to collect data which come from multiple manufacturing industries. The research methodology used the Churchill (1979) framework for specifying and generating measured items. Exploratory factor analysis was employed to extract the main factors before using structural equation modeling (SEM) to test the hypotheses. Measurement model was firstly used to evaluate all measures and structural model was employed to test theoretical hypotheses.The empirical results of this research conclude that SCI has no direct positive impact on sustainable performance. Nevertheless, environmental and economic outcomes can be achieved by mediating effect of GSCM practices. Therefore, this research contributes to theoretical and practical view. In academic perspective, researchers can extend this finding to study on this issue further, while in managerial view, practitioners or managers can apply this result to their business strategies to improve their organisational performance

    September 23, 2017 (Pages 5917-6026)

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    Literacy barriers to learning and learner experiences

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    This research is in two phases. The aim of phase one was to explore the school experiences of learners identified as having literacy barriers to learning. Learners were in Year 8 (age 12-13) at the start of the research and Year 9 (age 13-14) by its conclusion. A case study design and the participatory method of ‘photovoice’ was used to elicit and foreground students’ views and experiences. To date there has been little research in this field using participatory methods. Thematic analysis was used to analyse the data. Findings suggest that the student photographers’ (N=4) were keen to share both their positive and negative experiences of school and in particular the importance they placed on relationships with peers and key staff. The aim of phase two was to use students’ photos, which were developed into individual ‘experience boards’, as a tool to facilitate staff reflections on practice. Three discussion groups (N=7) were held and data were analysed using thematic analysis. Findings were viewed and discussed using the framework of Maslow’s (1943) hierarchy of needs. Staff showed a high level of empathy and a desire to interpret and reflect on the photos. The constructs of feeling safe and secure were significant themes across all discussion groups. Furthermore, the lack of photos explicitly about learning challenged staff beliefs about student experiences and enabled them to acknowledge the importance the student photographers placed on these constructs. The use of photovoice stimulated reflection and is likely to have aided staff to better understand student experiences. There are implications for educational psychology practice in relation to taking a more holistic view of understanding and supporting learners with literacy difficulties and also the use of ‘photovoice’ to elicit and foreground student views and experiences as part of consultation or at a more systemic level
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