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Table 1: Data structures and parameters Data structures
Table 1: Data structures and parameters Data structures
Table 16: Structure of the Data Set.
Table 4. Data structuration and data filtering summary.
Table 2: Semantic amp; structural data heterogeneity
"... In PAGE 4: ... An example is, Where are all the row crop fields in Dane, Racine, and Eau Claire Counties? A query of this kind is relatively straightforward when using one data set but more difficult when posed over a larger geographic area. Table2 illustrates the heterogeneity of attribute ... In PAGE 4: ... There may be multiple data sets covering all or parts of a geographic area, arising from overlapping jurisdictions. For example, regional planning commissions may overlap county data, and cities are nested within counties, as seen in Table2 with Dane County and the city of Madison. At the other extreme, holes may exist in data sets such as Eau Claire County data that excludes the city of Eau Claire.... ..."
Table 2: Semantic amp; structural data heterogeneity
"... In PAGE 4: ... An example is, Where are all the row crop fields in Dane, Racine, and Eau Claire Counties? A query of this kind is relatively straightforward when using one data set but more difficult when posed over a larger geographic area. Table2 illustrates the heterogeneity of attribute ... In PAGE 4: ... There may be multiple data sets covering all or parts of a geographic area, arising from overlapping jurisdictions. For example, regional planning commissions may overlap county data, and cities are nested within counties, as seen in Table2 with Dane County and the city of Madison. At the other extreme, holes may exist in data sets such as Eau Claire County data that excludes the city of Eau Claire.... ..."
Table 6: An example describing the structure of the data
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