004 Datenverarbeitung; Informatik
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Was Daten angeht, setzen Marketingforschung und -lehre bisher vor allem auf Masse statt Klasse. Doch um fundierte Entscheidungen zu treffen, brauchen Unternehmen hoch entwickelte statistische Modelle. Das ist das Forschungsgebiet von Prof. Thomas Otter, der auch das gute alte Bauchgefühl in Algorithmen umzusetzen vermag.
This article presents the findings from systematically reviewing 26 empirical research studies published from 2005 to 2014 on the use of GIS for learning and teaching. By employing methods of narrative synthesis and qualitative content analysis, the study gives evidence about the state of knowledge of competence-based GIS education. The results explain what factors and variables effect GIS learning in terms of technology use, major subject contents, learning contexts, and didactic and pedagogical aspects. They also show what facets of knowledge, process skills, and affect the research literature has investigated. The analysis of the type and quality of the methods used indicates that current GIS education research is a heterogeneous field that needs a systematic research framework for future efforts, according to empirical education research.
The issue of data security has become increasingly complex in the age of the internet and artificial intelligence. The developments seem to be almost unmanageable in some areas. Cooperation between jurisprudence and information technology is the only thing that can protect the individual and certain social groups from discrimination.
Das Thema Datenschutz wird in Zeiten von Internet und künstlicher Intelligenz immer komplexer. Die Entwicklungen scheinen in manchen Bereichen kaum noch beherrschbar zu sein. Nur ein Zusammenspiel von Rechtswissenschaft und Informatik kann den Einzelnen und bestimmte gesellschaftliche Gruppen vor Diskriminierung schützen.
So far, personal feedback in the case of lectures with hundreds of students still seems utopic – even after the digitalization boom in times of the coronavirus. Tools from the research field of »learning analytics« could in future give students feedback and at the same time provide their supervisors with clues about where help is still needed.
A question of striking the right balance : how do digital media influence how we think and act?
(2020)
What influence do digital technologies have on human perception, thinking and action? Do computer games harm the development of young brains? And is there really such a thing as »digital dementia«, an increasing forgetfulness caused by the use of modern technologies? For some of these questions, answers are available that are empirically corroborated.
Active efficient coding explains the development of binocular vision and its failure in amblyopia
(2020)
The development of vision during the first months of life is an active process that comprises the learning of appropriate neural representations and the learning of accurate eye movements. While it has long been suspected that the two learning processes are coupled, there is still no widely accepted theoretical framework describing this joint development. Here, we propose a computational model of the development of active binocular vision to fill this gap. The model is based on a formulation of the active efficient coding theory, which proposes that eye movements as well as stimulus encoding are jointly adapted to maximize the overall coding efficiency. Under healthy conditions, the model self-calibrates to perform accurate vergence and accommodation eye movements. It exploits disparity cues to deduce the direction of defocus, which leads to coordinated vergence and accommodation responses. In a simulated anisometropic case, where the refraction power of the two eyes differs, an amblyopia-like state develops in which the foveal region of one eye is suppressed due to inputs from the other eye. After correcting for refractive errors, the model can only reach healthy performance levels if receptive fields are still plastic, in line with findings on a critical period for binocular vision development. Overall, our model offers a unifying conceptual framework for understanding the development of binocular vision.