96,797 research outputs found
Model-Based Environmental Visual Perception for Humanoid Robots
The visual perception of a robot should answer two fundamental questions: What? and Where? In order to properly and efficiently reply to these questions, it is essential to establish a bidirectional coupling between the external stimuli and the internal representations. This coupling links the physical world with the inner abstraction models by sensor transformation, recognition, matching and optimization algorithms. The objective of this PhD is to establish this sensor-model coupling
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Exploration through drawings in the conceptual stages of product design
This paper argues that sequences of exploratory drawings - constructed by designer's movements and decisions - trace systematic and logical paths from ideas to designs. This argument has three parts. First, sequences of exploratory sketches produced by product designers, against the same task specification, are analyzed in terms of the cognitive categories of reinterpretation, emergence and abstraction. Second, a computational model is outlined for the process of exploration through drawing and third the model is applied to elucidate the logic in the sequences of exploratory sketches examined earlier
On staying grounded and avoiding Quixotic dead ends
The 15 articles in this special issue on The Representation of Concepts illustrate the rich variety of theoretical positions and supporting research that characterize the area. Although much agreement exists among contributors, much disagreement exists as well, especially about the roles of grounding and abstraction in conceptual processing. I first review theoretical approaches raised in these articles that I believe are Quixotic dead ends, namely, approaches that are principled and inspired but likely to fail. In the process, I review various theories of amodal symbols, their distortions of grounded theories, and fallacies in the evidence used to support them. Incorporating further contributions across articles, I then sketch a theoretical approach that I believe is likely to be successful, which includes grounding, abstraction, flexibility, explaining classic conceptual phenomena, and making contact with real-world situations. This account further proposes that (1) a key element of grounding is neural reuse, (2) abstraction takes the forms of multimodal compression, distilled abstraction, and distributed linguistic representation (but not amodal symbols), and (3) flexible context-dependent representations are a hallmark of conceptual processing
Visualization in cyber-geography: reconsidering cartography's concept of visualization in current usercentric cybergeographic cosmologies
This article discusses some epistemological problems of a semiotic and cybernetic
character in two current scientific cosmologies in the study of geographic
information systems (GIS) with special reference to the concept of visualization in
modern cartography.
Setting off from Michael Batty’s prolegomena for a virtual geography and Michael
Goodchild’s “Human-Computer-Reality-Interaction” as the field of a new media
convergence and networking of GIS-computation of geo-data, the paper outlines
preliminarily a common field of study, namely that of cybernetic geography, or just
“cyber-geography) owing to the principal similarities with second order cybernetics.
Relating these geographical cosmologies to some of Science’s dominant, historical
perceptions of the exploring and appropriating of Nature as an “inventory of
knowledge”, the article seeks to identify some basic ontological and epistemological
dimensions of cybernetic geography and visualization in modern cartography.
The points made is that a generalized notion of visualization understood as the use of
maps, or more precisely as cybergeographic GIS-thinking seems necessary as an
epistemological as well as a methodological prerequisite to scientific knowledge in
cybergeography. Moreover do these generalized concept seem to lead to a
displacement of the positions traditionally held by the scientist and lay-man citizen,
that is not only in respect of the perception of the matter studied, i.e. the field of
geography, but also of the manner in which the scientist informs the lay-man citizen
in the course of action in the public participation in decision making; a displacement
that seems to lead to a more critical, or perhaps even quasi-scientific approach as
concerns the lay-man user
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