1,721,064 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
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
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
Study of difficulty curves in video games with high variability in player level and a small amount of data
No full textCe travail de recherche porte sur l'étude des courbes de difficulté dans les jeux vidéo ainsi que sur l'adaptation dynamique de la difficulté des jeux vidéo avec forte variabilité du niveau des joueurs et une faible quantité de données. Nous nous intéressons à l'adaptation de la difficulté car la difficulté des jeux vidéo est un facteur de plaisir et de motivation.Nous avons développé un modèle générique, utilisable dans n'importe quel jeu. De plus, notre modèle permet de cibler n'importe quel niveau de difficulté. Enfin, notre modèle fonctionne sans données au préalable. Ce modèle a été testé lors d'une expérimentation scientifique.Nous avons mené une autre expérimentation sur des courbes de difficulté. Nous avons testé quatre courbes de difficulté différentes.Ces travaux peuvent aboutir à une meilleure connaissance des besoins de chaque catégorie de joueurs grâce à un modèle simple et utilisable par une grande variété de jeux vidéo différents.This research work focuses on the study of difficulty curves in video games as well as on dynamic adaptation of video games' difficulty with high variability in the players' level and a small amount of data. We are interested in the difficulty's adaptation because video games' difficulty is a factor of pleasure and motivation.We have developed a generic model that can be used in any game. In addition, our model can target any level of difficulty. Finally, our model works without prior data.This model has been tested in a scientific experiment.We carried out an experimentation on difficulty curves. We tested four different difficulty curves.This work can lead to a better understanding of the needs of each category of players thanks to a simple model that can be used by a wide variety of different video game
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
Attention as a vector for difficulty adjustment in video games
No full textDans ce travail de thèse, nous proposons d'étudier les méthodes d'évaluation de l'attention ainsi que son implication dans la gestion de la difficulté dans le contexte du jeu vidéo. La prise en compte des processus attentionnels joue un rôle important dans la construction des interfaces homme-machine. La perturbation de ces processus peut, symétriquement, servir de variable d'ajustement des difficultés rencontrées dans les challenges proposés par les game designers. Notre première démarche a consisté à mesurer des temps de réaction de l'utilisateur dans un contexte de jeu sérieux. L'algorithme développé a permis, par une analyse des trajectoires du pointeur contrôlé par le joueur, de détecter des valeurs anormales de temps de réaction. Cela nous a amené à étudier dans quelle mesure la quantité d'information présentée à l'écran pouvait altérer les performances d'un joueur. Notre deuxième approche a consisté donc à mesurer les effets produits par une variation du champ de vision choisi sur la caméra virtuelle dans les jeux à la première personne. Dans la suite de ce travail, nous avons étudié dans quelle mesure la distribution de l'attention d'un utilisateur sur plusieurs dispositifs pour réaliser une simple tâche pouvait modifier les performances comparativement à un dispositif unique. Cette étude a montré que l'utilisation de deux dispositifs en parallèle provoque une augmentation significative de la difficulté.In this thesis, we study attention evaluation methods and their application to the management of difficulty within the context of video games. The consideration of attentional processes plays an important role in the development of human-computer interfaces. The disruption of these attentional processes can be used symmetrically as a variable for adjusting game difficulty. Our first approach was to measure user reaction time, which we did in the context of a serious game. By analyzing the trajectories of a mouse cursor controlled by the player, our approach allows us to detect abnormal reaction time values. This led us to consider how the amount of information displayed on screen could alter player performance. Our second approach, therefore, was to measure the effects produced by variations in the field of view of the virtual camera in a 3D first-person game. Finally, we studied how the distribution of user attention across multiple devices for the execution of a simple task could affect performance relative to the use of a single device. This study showed that the use of two devices in parallel causes a significant increase in difficulty
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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