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Gennadiy Korneev, Arza-Burza Khan
No full textOnce upon a time, there lived a khan called Arza-Burza who judged people’s disputes. One day Arza-Burza misjudges two cases just to be corrected by the boys who were herding calves on a nearby hill. The khan orders his servants to dig the nearby hill. At the bottom of the hill, his servants find a golden throne with eight legs. Arza-Burza sits on the throne and becomes wiser
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Gennadiy Korneev, About the etymology of Derbet
No full textGennadiy says that according to one version, the ethnonym Derbet derives from the word derbuljin, meaning ‘a square’. According to yet another version, it derives from the word durbot, ‘a nomadic camp’ that belonged to Ulinda-Budan-Taisha
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Gennadiy Korneev, The fox, the bull, and the crow
No full textA fairy tale: Once upon a time, there lived a fox, a bull and a crow. One day, envious of the bull’s ability to find food easily, the fox decides to kill it by sending it to a distant pasture presumably abundant with grass. On its way, the bull falls into the fox’s trap but is rescued by the crow. Unaware of this, the fox runs to feast on the bull’s intestines just to fall into its own trap
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
Disappearance of holographic and interference fringes accompanies optical diagnostics of a supersonic bow shock flow
No full textPreliminary results of optical diagnostics of bow shocks in a supersonic wind tunnel by applying dual-hologram shear interferometry technique are discussed. A strong refraction effect of the probing beam penetrating a region in the vicinity of a bow shock over a blunt nose cone model has been discovered. On a signal hologram the effect leads to the disappearance of holographic fringes in a narrow region attached to the shock wave front. A reconstructed interferogram in this region manifests the absence of an interference pattern. Computer simulations were performed for a part of the probing beam penetrating the area of high-density steep gradients of compressed air attached to the central part of the shock front of a bow shock. The compressed area was modeled as a hyperbolic cap. The bow shock was assumed axisymmetric. The simulations made it possible to evaluate angles of deflections and found conformity with reconstructed interferograms (shadowgraphs). It is concluded that in the above-indicated region of bow shocks probing light is deviated refractively into some
angles, which could be large enough for light rays to be blocked out and never arrive at the detector (photo film). In the case when interferometric fringes disappear, the effect of strong refraction makes it impossible to measure air density gradients in some critical region
Variations on the Author
No full text“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
Verifiable cross-silo federated learning
No full textPoster is related to the paper: Aleksei Korneev, Jan Ramon. Verifiable cross-silo federated learning. 2024. ⟨hal-04612305⟩International audienceFederated Learning (FL) is a widespread approach that allows training machine learning (ML) models with data distributed across multiple devices. In cross-silo FL, which often appears in domains like healthcare or finance, the number of participants is moderate, and each party typically represents a well-known organization. However, malicious agents may still attempt to disturb the training procedure in order to obtain certain benefits, for example, a biased result or a reduction in computational load. While one can easily detect a malicious agent when data used for training is public, the problem becomes much more acute when it is necessary to maintain the privacy of the training dataset. To address this issue, there is recently growing interest in developing verifiable protocols, where one can check that parties do not deviate from the training procedure and perform computations correctly. This poster reflects the results decribed in the corresponding paper where we conduct a comprehensive analysis of such protocols, and fit them in a taxonomy. We also perform a comparison of the efficiency and threat models of various approaches. We next identify research gaps and discuss potential directions for future scientific work
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe 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
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Gennadiy Korneev, A legend about the origin of the Polar Star
No full textAfter God created humans, monsters appeared from beneath the ground to feast on human flesh. Wishing to help God’s creations, one of heavenly beings descends on the earth in the form of a human boy. Being ‘caught’ by the monsters, the boy promises them to show the hideout where the humans were hiding. He leads the monsters into a desert where they tie him up to a pole. No later had the monsters begun to roast him, the boy turns into smoke and ascends to the sky to become into the Polar Star
Kornieiev Oleksandr Porfyrovych, a zoologist, sozologist, and teacher
No full textBiographical details are given with the scientific and socially significant contribution of the zoologist and sozologist O. Korneev (1903–1987), who was professor and head of the Department of Vertebrate Zoology, Faculty of Biology, University of Kyiv. O. Korneev’s scientific research covered the study of fauna, ecology and economic importance of rodents, game animals, as well as fossil animals. Another significant area of activity were his environmental initiatives, including the development of the topic of protection of ‘useful animals,’ participation in environmental organizations, and the publication of popular science materials in the field of environmental protection. O. Korneev’s long pedagogical work was marked by a number of awards, including the Labor Order
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