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Visualisation - Part 1 - Information Visualization Part One...

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1 Information Visualization Part One
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2 Introduction There are some aspects that may be understood better from graphics than from the textual format, such as the possibility for finding an alternative route, or the existence of historical places in the vicinity of the route (Mazza, 2004) Graphics, if well constructed, may make the human cognitive process of constructing a mental image of the route easier (Ruddle et al., 2002)
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3 Introduction Graphics are a mean to display facts about the data in a way that others can see and understand the underlying structure and the hypothesis about the data (Rober, 2000) Graphical excellence consists of complex ideas communicated with the clarity, precision, and efficiency (Tufte, 1983)
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4 Information Visualisation - Definition Card et al. (199) define the term visualisation as “the use of computer- supported, interactive, visual representations of data to amplify cognition”. Spence (2001) noted that there is a diversity of uses of the term ‘visualisation’
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5 Information Visualisation - Definition From Dictionaries: Visualize: form a mental image of … (The Concise Oxford Dictionary) Visualization: The display of data with the aim of maximizing comprehension rather than photographic realism (A Dictionary of Computing) Visualization: The act or process of interpreting in visual terms or of putting into visible form (Merriam-Webster Online Dictionary)
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6 Information Visualisation - Definition Definitions from the dictionaries reveal that visualisation is an activity in which humans are engaged, as an internal construct of the mind (Spence, 2001; Ware, 2000) Therefore according to (Ruddle et al., 2002; Spence, 2001) visualisation is a cognitive activity, facilitated by graphical external representations from which people construct internal mental representation of the world . Computers may facilitate the visualisation process with some visualisation tools.
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7 Information Visualisation - Definition A number of new definitions have been produced to define the scope of research in information visualisation.
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8 The Information Visualisation Research Group at the Institute for Software Research at University of California, Irvine cite on its Web pages: Information visualization focuses on the development and empirical analysis of methods for presenting abstract information in visual form. The visual display of information allows people to become more easily aware of essential facts, to quickly see regularities and outliers in data, and therefore to develop a deeper understanding of data. Interactive visualization additionally takes advantage of people's ability to also identify interesting facts when the visual display changes, and allows them to manipulate the visualization or the underlying data to explore such changes.
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