1,721,446 research outputs found
Joanne M. Ferraro, Family and Public Life in Brescia, 1580-1650. The Foundation of Power in the Venitian State
No full textBoutier Jean. Joanne M. Ferraro, Family and Public Life in Brescia, 1580-1650. The Foundation of Power in the Venitian State. In: Revue d’histoire moderne et contemporaine, tome 45 N°1, Janvier-mars 1998. Pouvoirs et sociétés en Italie XVIe-XXe siècles. pp. 295-297
Ecological sampling of gaze shifts
Full text linkVisual attention guides our gaze to relevant parts of the viewed scene, yet the moment-to-moment relocation of gaze can be different among observers even though the same locations are taken into account. Surprisingly, the variability of eye movements has been so far overlooked by the great majority of computational models of visual attention. In this paper we present the ecological sampling model, a stochastic model of eye guidance explaining such variability. The gaze shift mechanism is conceived as an active random sampling that the foraging eye carries out upon the visual landscape, under the constraints set by the observable features and the global complexity of the landscape. By drawing on results reported in the foraging literature, the actual gaze relocation is eventually driven by a stochastic differential equation whose noise source is sampled from a mixture of α-stable distributions. This way, the sampling strategy proposed here allows to mimic a fundamental property of the eye guidance mechanism: where we choose to look next at any given moment in time, it is not completely deterministic, but neither is it completely random To show that the model yields gaze shift motor behaviors that exhibit statistics similar to those displayed by human observers, we compare simulation outputs with those obtained from eye-tracked subjects while viewing complex dynamic scenes
Modelling eye-movement control via constrained search approach
No full textA model of visual search is presented where gaze shifts are driven by an hybrid deterministic/stochastic mechanism operating
over a saliency field. Results of the simulations are compared with experimental data, and a notion of complexity is used to quantify the behaviour of the system in different condition
Coupling the world with the observer: from analysis of information to active vision
No full textIn this paper we define the content of information in an image and show how it can be computed by taking into account different levels of resolution, in the framework of information theory and the thermodynamics of irreversible transformations. The results thus obtained wil l eventual ly be exploited to derive a mechanism for active exploration of visual space suitable to perform a dynamic coupling between the agent and its environmen
PACE E. M. FERRARO, A. GIARRATANO, S. MANGIONE, M. GJOMARKAJ. Elevated expression of TLR4 and HBD2 but decreased levels of IP-10 in COPD with severe exacerbation
No full text
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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