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Simplicity and Probability in Children's Causal Explanations
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Preschoolers evaluate risk and reward in exploration-exploitation tasks
Full text linkChildren are drivers of their own discovery. To develop a complete characterization of the factors that drive explo-ration in early childhood, we must first understand how competing factors influence children’s decision making. We investigatedpreschool-aged children’s decision-making on explore-exploit tasks where the available information about the distribution ofrewards was controlled. When probability information is unknown, children preferred to exploit known rewards over exploringunknown ones. However, performance in Experiment 2 shows that children can use probabilistic information to form accurateexpectations about possible outcomes to effectively choose between exploiting and exploring. The degree to which individ-ual children are “exploratory” is also shown to be consistent over weeks, suggesting that individual children have “trait-like”exploratory drives. On aggregate, children incorporate these individual tendencies towards exploration or exploitation withprobability information; thus children readily form estimations of expected reward and use this information to guide efficientexploratory behavior
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Believing is Seeing: Children's Causal Beliefs Affect Visual Exploration and Prediction
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The Role of Word Labels in Children's Causal Inductions and Exploratory Play
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Deconfounding Hypothesis Generation and Evaluation in Bayesian Models
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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
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