Search results for "REPRESENTATION"
showing 10 items of 1710 documents
Knowledge Representation and Cognitive Skills in Problem Solving
2017
This paper offers a programmatic view on the study of cross-linguistic variation and its effects on human cognitive skills. Based on Linguistic Typology and its methodology to account for cross-linguistic differences (section 2), it will show how the presence or absence of certain grammatical categories enhances or inhibits specific skills in the domain of quantification (section 3). In its main part (section 4), it will show how to describe structural differences between the source and the target language in translation and how to find out if these differences affect the performance of students in knowledge assessment tests. For that purpose, it will compare the English and the Japanese ve…
Beyond Lampedusa: Africa Meets Europe / Para Lá de Lampedusa: A África Encontra a Europa
2013
The volume, resulting from a photograph exhibit that travelled the globe (Portugal, China, USA, Nigeria, Italy, etc.), offers a miscellaneous portrayal of the history of African photography and its influence on non-African imaginings of Africa and the African diaspora in all its diversity. My essay comments on the photographic representation of the black body in Italy in both colonial and postcolonial times.
Rebuilding Palermo in the Middle Ages: A Virtual Approach
2020
A long sequence of demolitions, transformations, interpretative restorations eliminated or compromised a series of civil and religious buildings built between the XII and early XVI centuries in Palermo. For many of these architectures, graphic, photographic and documentary evidence exists and can be found. Within an extensive project of the Department of Architecture of the University of Palermo, based on the collaboration between different disciplines, we intend to offer an essay of the possible results that the synergy between historical research and representation can offer. Chosen case is a fifteenth-century civil building located in the San Francesco district, of which some fragments r…
La memoria fotografica dell’architettura : restituzioni prospettiche e ricostruzioni
2023
This book explores perspective restitution from photographs for the reconstruction of buildings and urban sites that no longer exist or have suffered many alterations over time. Digital drawing and modelling tools overcome many of the limitations that, in the past, made perspective restitution from photographs inaccurate and inconvenient. Traditional drawing tools made perspective restitution from photographs difficult, especially when vanishing points appeared at a great distance from the image frame. The results of perspective restitution were either 1D or 2D objects, i.e. points, segments, angles, planar figures and profiles, that were revolved into the picture plane. By contrast, digita…
Convolutional architectures for virtual screening
2020
Abstract Background A Virtual Screening algorithm has to adapt to the different stages of this process. Early screening needs to ensure that all bioactive compounds are ranked in the first positions despite of the number of false positives, while a second screening round is aimed at increasing the prediction accuracy. Results A novel CNN architecture is presented to this aim, which predicts bioactivity of candidate compounds on CDK1 using a combination of molecular fingerprints as their vector representation, and has been trained suitably to achieve good results as regards both enrichment factor and accuracy in different screening modes (98.55% accuracy in active-only selection, and 98.88% …
Visual Culture and Cultural Heritage: ViC-CH a Synthesis Between Digital Representation and Heritage Experience
2019
The dissemination possibilities offered by digital technologies provide multiple ways of reading and fruition of the cultural heritage. In order to define a visualization and communication strategy through images, the paper shows some of the results of the ViC-CH Visual Culture and Cultural Heritage workshop, which involved the University of Trento and the Free University of Bozen-Bolzano. The graphic elaborations focused on the Library of the Priest Seminar in Brixen; photomodelling, short films with drone shots and virtual visits have been some of the ways of manipulating the image for the animation and realistic visualization of a cultural heritage not easily accessible to date (The pape…
Horses and Cowboys on the Contemporary American Stage: The Horse as Prop in Sam Shepard’sKicking a Dead Horseand Sarah Ruhl’sLate: a cowboy song
2021
This comparative essay analyses the dramatic representation of horses in two early twenty-first-century American plays by Sam Shepard and Sarah Ruhl. Both plays bring a horse figure onto the stage ...
Channel Capacity in Psychovisual Deep-Nets: Gaussianization Versus Kozachenko-Leonenko
2020
In this work, we quantify how neural networks designed from biology using no statistical training have a remarkable performance in information theoretic terms. Specifically, we address the question of the amount of information that can be extracted about the images from the different layers of psychophysically tuned deep networks. We show that analytical approaches are not possible, and we propose the use of two empirical estimators of capacity: the classical Kozachenko-Lonenko estimator and a recent estimator based on Gaussianization. Results show that networks purely based on visual psychophysics are extremely efficient in two aspects: (1) the internal representation of these networks dup…
A Posture Sequence Learning System for an Anthropomorphic Robotic Hand
2003
The paper presents a cognitive architecture for posture learning of an anthropomorphic robotic hand. Our approach is aimed to allow the robotic system to perform complex perceptual operations, to interact with an human user and to integrate the perceptions by a cognitive representation of the scene and the observed actions. The anthropomorphic robotic hand imitates the gestures acquired by the vision system in order to learn meaningful movements, to build its knowledge by different conceptual spaces and to perform complex interaction with the human operator.
''Forward to the past''
2012
Carlini, Alessandro | Actis-Grosso, Rossana | Stucchi, Natale | Pozzo, Thierry; International audience; ''Our daily experience shows that the CNS is a highly efficient machine to predict the effect of actions into the future; are we so efficient also in reconstructing the past of an action? Previous studies demonstrated we are more effective in extrapolating the final position of a stimulus moving according to biological kinematic laws. Here we address the complementary question: are we more effective in extrapolating the starting position (SP) of a motion following a biological velocity profile? We presented a dot moving upward and corresponding to vertical arm movements that were masked i…