1,720,956 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Manage and ensure quality of service of resource management in multi-cloud environment
No full textA mesure que le cloud computing se développe, de nouveaux besoins clients naissent, surpassant les capacités d'un unique fournisseur. Naturellement, les clients se sont intéressés à la consommation de services de plusieurs fournisseurs. Ce paradigme apportent un certains nombre d'avantages. Cependant, le multi-cloud soulève des verrous inhérents à la multiplicité de fournisseurs et à l'hétérogénéité de leurs services. En outre, la gestion de la qualité de service, le maintien et le suivi des objectifs de niveau de service, est rendue d'autant plus complexe en raison de la nature distribuée du contexte multi-cloud et de la dépendance qui existe entre les différents composants.Afin de surmonter ces difficultés, nous visons dans cette thèse à (1) proposer un modèle de description de SLA multi-cloud dynamique, (2) proposer un processus de validation de la cohérence préalable à la mise en œuvre des SLAs multi-cloud dynamique et (3) proposer un processus de vérification post-mise en œuvre des SLAs multi-cloud dynamique. Pour le premier objectif, nous proposons un modèle de description de SLA multi-cloud dynamique composé d'un global-SLA permettant de représenter des objectifs globaux au système multi-cloud, de sub-SLAs permettant de représenter des objectifs locaux au niveau des composants du système multi-cloud et une machine à état permettant la formalisation de reconfiguration des services cloud pour adresser l'aspect dynamique. Pour le second objectif, nous proposons une vérification de la cohérence préalable à la mise en œuvre des SLA multi-cloud dynamiques, identifiant et rapportant les SLOs incohérents. Nous proposons une vérification en 2 étapes: (1) entre les global-SLAs et les sub-SLAs en se basant sur une méthode d'agrégation de SLOs et (2) entre les sub-SLAs et stratégies de reconfiguration en se basant sur une technique de traduction de SLA. Pour le troisième objectif, portant sur le reporting du SLA multi-cloud dynamique après leur mise en œuvre par les fournisseurs de service cloud. Cette contribution, basée sur des techniques de fouille de processus comprenant la collecte et le pré-traitement des journaux d'événements produits durant la mise en œuvre, afin de les comparer avec le SLA multi-cloud dynamique établi et de signaler les éventuelles violations de SLA aux architectes cloud. Nous évaluons cette étape avec des journaux d'événements collectés auprès des 3 plus grands fournisseurs de services cloud: AWS, GCP et Azure.As cloud computing continues to grow, new client needs arise, surpassing the capabilities of a single provider. Naturally, clients have become interested in consuming services from multiple providers. This paradigm brings a number of advantages. However, multi-cloud raises challenges inherent to the multiplicity of providers and the heterogeneity of their services. Moreover, managing the quality of service, maintaining and monitoring service level objectives, is made more complex due to the distributed nature of the multi-cloud context and the dependencies between different components.To overcome these difficulties, in this thesis, we aim to (1) propose a model for dynamic multi-cloud SLA description, (2) propose a process for pre-implementation consistency validation of dynamic multi-cloud SLAs, and (3) propose a process for post-implementation verification of dynamic multi-cloud SLAs. To achieve the first objective, we propose a model for dynamic multi-cloud SLA description composed of a global-SLA to represent global objectives for the multi-cloud system, sub-SLAs to represent local objectives at the component level of the multi-cloud system, and a state machine to formalize the reconfiguration of cloud services to address the dynamic aspect. To achieve the second objective, we propose a pre-implementation consistency verification of dynamic multi-cloud SLAs, identifying and reporting inconsistent SLOs. We propose a two-step verification: (1) between the global-SLAs and the sub-SLAs based on an SLO aggregation method, and (2) between the sub-SLAs and reconfiguration strategies based on an SLA translation technique. To achieve the third objective, focused on reporting the dynamic multi-cloud SLA after implementation by cloud service providers, this contribution is based on process mining techniques, including the collection and pre-processing of event logs produced during the implementation, to compare them with the established dynamic multi-cloud SLA and report any SLA violations to cloud architects. We evaluate this step with event logs collected from the 3 largest cloud service providers: AWS, GCP, and Azure
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe 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
Gérer et assurer la qualité de services de ressources dans un environnement multi-cloud
No full textAs cloud computing continues to grow, new client needs arise, surpassing the capabilities of a single provider. Naturally, clients have become interested in consuming services from multiple providers. This paradigm brings a number of advantages. However, multi-cloud raises challenges inherent to the multiplicity of providers and the heterogeneity of their services. Moreover, managing the quality of service, maintaining and monitoring service level objectives, is made more complex due to the distributed nature of the multi-cloud context and the dependencies between different components.To overcome these difficulties, in this thesis, we aim to (1) propose a model for dynamic multi-cloud SLA description, (2) propose a process for pre-implementation consistency validation of dynamic multi-cloud SLAs, and (3) propose a process for post-implementation verification of dynamic multi-cloud SLAs. To achieve the first objective, we propose a model for dynamic multi-cloud SLA description composed of a global-SLA to represent global objectives for the multi-cloud system, sub-SLAs to represent local objectives at the component level of the multi-cloud system, and a state machine to formalize the reconfiguration of cloud services to address the dynamic aspect. To achieve the second objective, we propose a pre-implementation consistency verification of dynamic multi-cloud SLAs, identifying and reporting inconsistent SLOs. We propose a two-step verification: (1) between the global-SLAs and the sub-SLAs based on an SLO aggregation method, and (2) between the sub-SLAs and reconfiguration strategies based on an SLA translation technique. To achieve the third objective, focused on reporting the dynamic multi-cloud SLA after implementation by cloud service providers, this contribution is based on process mining techniques, including the collection and pre-processing of event logs produced during the implementation, to compare them with the established dynamic multi-cloud SLA and report any SLA violations to cloud architects. We evaluate this step with event logs collected from the 3 largest cloud service providers: AWS, GCP, and Azure.A mesure que le cloud computing se développe, de nouveaux besoins clients naissent, surpassant les capacités d'un unique fournisseur. Naturellement, les clients se sont intéressés à la consommation de services de plusieurs fournisseurs. Ce paradigme apportent un certains nombre d'avantages. Cependant, le multi-cloud soulève des verrous inhérents à la multiplicité de fournisseurs et à l'hétérogénéité de leurs services. En outre, la gestion de la qualité de service, le maintien et le suivi des objectifs de niveau de service, est rendue d'autant plus complexe en raison de la nature distribuée du contexte multi-cloud et de la dépendance qui existe entre les différents composants.Afin de surmonter ces difficultés, nous visons dans cette thèse à (1) proposer un modèle de description de SLA multi-cloud dynamique, (2) proposer un processus de validation de la cohérence préalable à la mise en œuvre des SLAs multi-cloud dynamique et (3) proposer un processus de vérification post-mise en œuvre des SLAs multi-cloud dynamique. Pour le premier objectif, nous proposons un modèle de description de SLA multi-cloud dynamique composé d'un global-SLA permettant de représenter des objectifs globaux au système multi-cloud, de sub-SLAs permettant de représenter des objectifs locaux au niveau des composants du système multi-cloud et une machine à état permettant la formalisation de reconfiguration des services cloud pour adresser l'aspect dynamique. Pour le second objectif, nous proposons une vérification de la cohérence préalable à la mise en œuvre des SLA multi-cloud dynamiques, identifiant et rapportant les SLOs incohérents. Nous proposons une vérification en 2 étapes: (1) entre les global-SLAs et les sub-SLAs en se basant sur une méthode d'agrégation de SLOs et (2) entre les sub-SLAs et stratégies de reconfiguration en se basant sur une technique de traduction de SLA. Pour le troisième objectif, portant sur le reporting du SLA multi-cloud dynamique après leur mise en œuvre par les fournisseurs de service cloud. Cette contribution, basée sur des techniques de fouille de processus comprenant la collecte et le pré-traitement des journaux d'événements produits durant la mise en œuvre, afin de les comparer avec le SLA multi-cloud dynamique établi et de signaler les éventuelles violations de SLA aux architectes cloud. Nous évaluons cette étape avec des journaux d'événements collectés auprès des 3 plus grands fournisseurs de services cloud: AWS, GCP et Azure
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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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