1,720,984 research outputs found
A search for Elves in Mini-EUSO data using CNN-based one-class classifier
Full text linkMini-EUSO is a small, near-UV telescope observing the Earth and its
atmosphere from the International Space Station. The time resolution of 2.5
microseconds and the instantaneous ground coverage of about
km allows it to detect some Transient Luminous Events, including Elves.
Elves, with their almost circular shape and a radius expanding in time form
cone-like structures in space-time, which are usually easy to be recognised by
the eye, but not simple to filter out from the myriad of other events, many of
them not yet categorised. In this work, we present a fast and efficient
approach for detecting Elves in the data using a 3D CNN-based one-class
classifier.Comment: ICRC 2023 Proceeding
The format for GRAND data storage and related Python interfaces
Full text linkThe vast amounts of data to be collected by the Giant Radio Array for
Neutrino Detection (GRAND) and its prototype - GRANDProto300 - require the use
of a data format very efficient in terms of i/o speed and compression. At the
same time, the data should be easily accessible, without the knowledge of the
intricacies of the format, both for bulk processing and for detailed
event-by-event analysis and reconstruction. We present the format and the
structure prepared for GRAND data, the concept of the data-processing chain,
and data-oriented and analysis-oriented interfaces written in Python.Comment: Proceedings of the 38th International Cosmic Ray Conference
(ICRC2023
Ground-based tests of JEM-EUSO components at the Telescope Array site, "EUSO-TA"
Full text linkWe are conducting tests of optical and electronics components of JEM-EUSO at the Telescope Array site in Utah with a ground-based "EUSO-TA" detector. The tests will include an engineering validation of the detector, cross-calibration of EUSO-TA with the TA fluorescence detector and observations of air shower events. Also, the proximity of the TA?s Electron Light Source will allow for convenient use of this calibration device. In this paper, we report initial results obtained with the EUSO-TA telescope.Fil: Adams, J. H.. University of Alabama in Huntsville; Estados UnidosFil: Ahmad, S.. Ecole Polytechnique; FranciaFil: Albert, J. N.. Univ Paris-Sud; FranciaFil: Allard, D.. Univ Paris Diderot; FranciaFil: Anchordoqui, L.. University of Wisconsin-Milwaukee; Estados UnidosFil: Andreev, V.. University of California; Estados UnidosFil: Anzalone, A.. INAF - Istituto di Astrofisica Spaziale e Fisica Cosmica di Palermo; ItaliaFil: Arai, Y.. High Energy Accelerator Research Organization (KEK); JapónFil: Asano, K.. Tokyo Institute of Technology; JapónFil: Ave Pernas, M.. Universidad de Alcala (UAH); EspañaFil: Barrillon, P.. Univ Paris-Sud; FranciaFil: Batsch, T.. Lomonosov Moscow State University; RusiaFil: Bayer, J.. University of Tubingen; AlemaniaFil: Bechini, R.. Universita’ di Torino; ItaliaFil: Belenguer, T.. Instituto Nacional de Tecnica Aeroespacial (INTA); EspañaFil: Bellotti, R.. Istituto Nazionale di Fisica Nucleare; ItaliaFil: Belov, K.. University of California; Estados UnidosFil: Berlind, A. A.. Vanderbilt University; Estados UnidosFil: Bertaina, M.. Istituto Nazionale di Fisica Nucleare; ItaliaFil: Biermann, P. L.. Karlsruhe Institute of Technology (KIT); AlemaniaFil: Biktemerova, S.. Joint Institute for Nuclear Research; RusiaFil: Blaksley, C.. Univ Paris Diderot; FranciaFil: Blanc, N.. Swiss Center for Electronics and Microtechnology (CSEM); SuizaFil: Blacki, J.. Space Research Centre of the Polish Academy of Sciences (CBK); PoloniaFil: Blin Bondil, S.. Ecole Polytechnique; FranciaFil: Blumer, J.. Karlsruhe Institute of Technology (KIT); AlemaniaFil: Bobik, P.. Institute of Experimental Physics; EslovaquiaFil: Bogomilov, M.. University of Sofia; BulgariaFil: Bonamente, M.. University of Alabama in Huntsville; Estados UnidosFil: Supanitsky, Alberto Daniel. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Kawasaki, Yoshiya. RIKEN; JapónFil: Piotrowski, Lech Wiktor. RIKEN; JapónFil: Kawasaki, Yoshiya. Yoshiya; JapónFil: Piotrowski, Lech Wiktor. Yoshiya; JapónFil: The JEM-EUSO Collaboration ·
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
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
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