Modeling and presenting incomplete and uncertain data on historical settlement units |
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Authors: | Grzegorz Myrda Bogumi Szady Agnieszka awrynowicz |
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Institution: | Grzegorz Myrda,Bogumi? Szady,Agnieszka ?awrynowicz |
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Abstract: | When entering information about changes of settlements in time into a database, we are dealing with direct facts from historical sources and with interpretations. The source information generally relates to an event or situation at a specific time. This means that we only fill in the parts of the timeline with data objects called (partial) manifestations; however, lack of data does not mean that settlement did not exist. It would take a lot of time to interpret and enter missing information manually. In this article we present a database schema, database procedures and algorithms to generate aggregated settlement unit manifestations in an automated way from their partial manifestations. As a result, it is possible to obtain a continuous history of a given settlement so as to present it on a map. |
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