1,721,008 research outputs found
Q8S: Emulation of Heterogeneous Kubernetes Clusters Using QEMU
No full textKubernetes has emerged as the industry standard for container orchestration in cloud environments, with its scheduler dynamically placing container instances across cluster nodes based on predefined rules and algorithms. Various efforts have been made to extend and improve upon the Kubernetes scheduler. However, as the majority of Kubernetes clusters operate on homogeneous hardware, most scheduling algorithms are also only developed for homogeneous systems. Heterogeneous infrastructures, which include IoT devices or specialized hardware, have become more widespread and require specialized tuning to optimize workload assignment, for which researchers and developers working on scheduling systems require access to heterogeneous hardware for development and testing; such data may not be available. While simulations such as CloudSim or K8sSim can provide insights, the level of detail they can offer to validate new schedulers is limited, as they are only simulations. To address this, we introduce Q8S, a tool for emulating heterogeneous Kubernetes clusters including x86_64 and ARM64 architectures on OpenStack using QEMU. Emulations created through Q8S provide a higher level of detail than simulations and can be used to train machine learning scheduling algorithms. By providing an environment capable of executing real workloads, Q8S enables researchers and developers to test and refine their scheduling algorithms, ultimately leading to more efficient and effective heterogeneous cluster management. We release our implementation of Q8S as open source
FIGURE 1. A in Eugenia alletiana (Myrtaceae), a new critically endangered species endemic to the island of Mauritius
No full textFIGURE 1. A. Tree; B–C. Bark; D. Leaf, adaxial surface; E. Leaf, abaxial leaf; F. Foliage with flower buds; G. Flower bud (A–C Le Pouce, others Brise Fer).Published as part of Baider, Cláudia & Vincent Florens, F. B., 2013, Eugenia alletiana (Myrtaceae), a new critically endangered species endemic to the island of Mauritius, pp. 1-12 in Phytotaxa 94 (1) on page 4, DOI: 10.11646/phytotaxa.94.1.1, http://zenodo.org/record/507220
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
Mid-Holocene (4200 kyr BP) mass mortalities in Mauritius (Mascarenes): Insular vertebrates resilient to climatic extremes but vulnerable to human impact (vol 21, pg 1179, 2011)
No full textKenneth F. Rijsdijk, Jens Zinke, Perry G.B. de Louw, Julian P. Hume, Hans (J.) van der Plicht, Henry Hooghiemstra, Hanneke J.M. Meijer, Hubert B. Vonhof, Nick Porch, F.B. Vincent Florens, Claudia Baider, Bas van Geel, Joost Brinkkemper, Tamara Vernimmen and Anwar Janoo (2011) Mid-Holocene (4200 kyr BP) mass mortalities in Mauritius (Mascarenes): Insular vertebrates resilient to climatic extremes but vulnerable to human impact. The Holocene. DOI: 10.1177/0959683611405236
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
Jumellea rossii Senghas 1967
No full textJ. rossii Senghas Distribution: — Mauritius and Réunion Specimens examined: — MAURITIUS. Macabé, 27 July 1967, Vaughan, s.n. (MAU 0002113) (fr.). Habitat: — In Mauritius: epiphyte of evergreen forest with canopy reaching 15-18 m high. Conservation status:— The species is assessed in Mauritius as Extinct (EX) as per IUCN red list criteria (IUCN 2001), as it was collected only once in 1967 and there are no known individuals alive today on the island despite the many botanical surveys that have been carried out in its known locality over the last 44 years. Phenology:— Flowering in Mauritius: July (plant in cultivation). Notes: — This species has a spur of the same length as the labellum while in J. cf. fragrans the spur is twice the length of the labellum.Published as part of Baider, Claudia, Vincent Florens, F. B., Rakotoarivelo, Fanny, Bosser, Jean & Pailler, Thierry, 2012, Two new records of Jumellea (Orchidaceae) for Mauritius (Mascarene Islands) and their conservation status, pp. 21-28 in Phytotaxa 52 (1) on page 25, DOI: 10.11646/phytotaxa.52.1.3, http://zenodo.org/record/506084
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
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