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Pictorial Representation (pictorial + representation)

Distribution by Scientific Domains

Humanities and Social Sciences	28%

Selected Abstracts

Pictorial representations in statistical reasoning

APPLIED COGNITIVE PSYCHOLOGY, Issue 3 2009
Gary L. Brase
In an ongoing debate between two visions of statistical reasoning competency, ecological rationality proponents claim that pictorial representations help tap into the frequency coding mechanisms of the mind, whereas nested sets proponents argue that pictorial representations simply help one to appreciate general subset relationships. Advancing this knowledge into applied areas is hampered by this present disagreement. A series of experiments used Bayesian reasoning problems with different pictorial representations (Venn circles, iconic symbols and Venn circles with dots) to better understand influences on performance across these representation types. Results with various static and interactive presentations of pictures all indicate a consistent advantage for iconic representations. These results are more consistent with an ecological rationality view of how these pictorial representations achieve facilitation in statistical task performance and provide more specific guidance for applied uses. Copyright © 2008 John Wiley & Sons, Ltd. [source]

Diagrammatic Representation in Geometry

DIALECTICA, Issue 4 2006
Dennis Potter
In this paper I offer a theory about the nature of diagrammatic representation in geometry. On my view, diagrammatic representaiton differs from pictorial representation in that neither the resemblance between the diagram and its object nor the experience of such a resemblance plays an essential role. Instead, the diagrammatic representation is arises from the role the components of the diagram play in a diagramatic practice that allows us to draws inferences based on them about the ojbects they represent. [source]

ELICITING A DIRECTED ACYCLIC GRAPH FOR A MULTIVARIATE TIME SERIES OF VEHICLE COUNTS IN A TRAFFIC NETWORK

AUSTRALIAN & NEW ZEALAND JOURNAL OF STATISTICS, Issue 3 2007
Catriona M. Queen
Summary The problem of modelling multivariate time series of vehicle counts in traffic networks is considered. It is proposed to use a model called the linear multiregression dynamic model (LMDM). The LMDM is a multivariate Bayesian dynamic model which uses any conditional independence and causal structure across the time series to break down the complex multivariate model into simpler univariate dynamic linear models. The conditional independence and causal structure in the time series can be represented by a directed acyclic graph (DAG). The DAG not only gives a useful pictorial representation of the multivariate structure, but it is also used to build the LMDM. Therefore, eliciting a DAG which gives a realistic representation of the series is a crucial part of the modelling process. A DAG is elicited for the multivariate time series of hourly vehicle counts at the junction of three major roads in the UK. A flow diagram is introduced to give a pictorial representation of the possible vehicle routes through the network. It is shown how this flow diagram, together with a map of the network, can suggest a DAG for the time series suitable for use with an LMDM. [source]

Linearity in rhetorical organisation: a comparative cross-cultural analysis of newstext from the People's Republic of China and Australia

INTERNATIONAL JOURNAL OF APPLIED LINGUISTICS, Issue 2 2000
Guy RamsayArticle first published online: 3 APR 200
Second or foreign language teachers would be familiar with student comments such as, "I can't follow what they're saying!", "What are they getting at?", or "What's their point?", particularly when reading L2 texts of considerable length. This paper seeks to address the issues premised by such comments made by L2 learners of Modern Standard Chinese, within the rubric of contrastive rhetoric studies. Such studies to date have produced equivocal evidence of variation in rhetorical organisation across culturo-linguistic groups. In order to contribute to this continuing debate, this study employs the Rhetorical Structure Theory analytic framework to produce pictorial representations of lengthy Chinese and Australian news journal text. Results obtained clearly demonstrate the feasibility of using the RST framework in this kind of analysis. While the small size of the newstext corpus severely limits the generality of other findings, they give tentative support to the contrastive rhetoric hypothesis. Pedagogical implications include the benefits of promoting awareness of such cross-cultural variation within the L2 classroom. [source]