1,720,975 research outputs found
Utility Driven Grid Scheduling Framework
Full text linkThe grid computing paradigm enables access to geographically and administratively distributed networked resources, and delivers functionality of those resources to individual users. Stemming from the core composition and aggregation of individual resources, the grid is primarily characterized by the heterogeneity it offers. Although such heterogeneity is often considered a feature, it also presents an obstacle in terms of application execution patterns and expectations (in terms of job runtime, resource utilization, and/or user Quality of Service (QoS)). Typical users have little or no knowledge about the concrete requirements their application imposes on such resources and thus have to stumble through a sea of options and uncertainties when submitting a job, leading to inefficient use of available resources. In order to alleviate the user from having to understand existing dependencies and make low-level decisions, a grid metascheduling framework has been devised that enables automated application- and user-oriented job metascheduling. In order to enable application-oriented metascheduling, a set of core grid services, Application Information Services (AIS), were designed and developed to provide application metaschedulers with relevant information regarding each application\u27s execution requirements and preferences. With such information, a metascheduler is capable of automatically realizing more job-to-resource mappings. In order to enable user-oriented metascheduling, a novel mode of user-scheduler interaction has been devised that builds on top of AIS. The model is realized in terms of two-way communication between a user and the scheduler enabling strict focus on an individual user and their current job. Overall, this dissertation makes contributions regarding efficiency of use and ease of access for grid resources. Results of grid job metaschedulers implementing the devised framework are shown as capable of consuming application-specific data in a manner that leverages existing heterogeneity and, in turn, automatically deliver effective application-to-resource mappings. Results achieved are two-fold: (1) behavior of application jobs across grid resources has been significantly improved in terms of job execution control, capable of increasing resource utilization and achieving significant runtime reduction (up to 50%), and (2) each job submission is being tailored specifically to an individual user and their respective job, delivering significantly higher QoS to the user
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Application Specification Language (ASL) – A Language for Describing Applications in Grid Computing
No full textGrid computing is the computing infrastructure of the next century where unlimited hardware and software resources are delivered to user’s fingertips. Much of the power delivered by grid computing is realized through application software made readily available to its users. The process of application deployment and deliverance to the end-users though is perplexed with options and requirements not readily available to application deployers. In this paper, we present a new grid language called Application Specification Language (ASL), which allows application developers to describe their individual applications. Application descriptions include general application information, installation requirements, invocation requirements, as well as any additional hints or suggestions that are applicable for the application. We present an ASL schema and provide examples of language use showing how adoption of ASL alleviates some of the deployment and runtime difficulties
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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