2004
DOI: 10.2498/cit.2004.02.07 View full text |Buy / Rent full text
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Abstract: The main problem of visual query languages for geographical data concerns query ambiguity. A query can have different visual representations, which in turn can have different interpretations. Increasing the number of query objects increases its ambiguity. This derives from the fact that a query can lead to multiple interpretations for both the system and user. The user's actions may not represent his intentions, leading the system to an incorrect interpretation. So the user cannot express his exact query and d… Show more

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“…Some other visual query languages offer more liberty to draw sketches. To represent a layer, users can draw a symbolic object and add a name to it [10] [11]. A spatial condition can be represented by the spatial relationship between two symbolic objects.…”
Section: Related Workmentioning
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“…Some other visual query languages offer more liberty to draw sketches. To represent a layer, users can draw a symbolic object and add a name to it [10] [11]. A spatial condition can be represented by the spatial relationship between two symbolic objects.…”
Section: Related Workmentioning