Modeling Positional Uncertainty of Linear Features in Geographic Information Systems
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Article info
23 - 38
Keywords
Abstract
This paper describes a probabilistic approach to model positional uncertainty of linear features in a vector-based geographic information system (GIS). Positional uncertainty is one of the components of uncertainty inherent in any object description in GIS. With a number of assumptions, the positional error of an arbitrary point on a line segment is derived based on the distribution of errors at the end points of the segment. This defines the probability density and the confidence region of a line segment and a set of indicators for the error of a line segment. The union of the confidence regions of the line segments establishes the confidence region of a linear feature. The derived uncertainty model is computationally feasible and has a great promise for efficient implementation in several GIS applications.
Shaheen, F. (1997). Modeling Positional Uncertainty of Linear Features in Geographic Information Systems. An-Najah University Journal for Research - A (Natural Sciences), 11(1), 23–38. https://doi.org/10.35552/anujr.a.11.1.395
[1]F. Shaheen, “Modeling Positional Uncertainty of Linear Features in Geographic Information Systems,” An-Najah University Journal for Research - A (Natural Sciences), vol. 11, no. 1, pp. 23–38, Jan. 1997, doi: 10.35552/anujr.a.11.1.395.
Shaheen, Fayez. “Modeling Positional Uncertainty of Linear Features in Geographic Information Systems.” An-Najah University Journal for Research - A (Natural Sciences), vol. 11, no. 1, Jan. 1997, pp. 23–38. Crossref, https://doi.org/10.35552/anujr.a.11.1.395.
1.Shaheen F. Modeling Positional Uncertainty of Linear Features in Geographic Information Systems. An-Najah University Journal for Research - A (Natural Sciences) [Internet]. 1997 Jan;11(1):23–38. Available from: http://dx.doi.org/10.35552/anujr.a.11.1.395
Shaheen, Fayez. “Modeling Positional Uncertainty of Linear Features in Geographic Information Systems.” An-Najah University Journal for Research - A (Natural Sciences) 11, no. 1 (January 1997): 23–38. https://doi.org/10.35552/anujr.a.11.1.395.
نمذجة الشك في موقع المعالم الخطية في نظم المعلومات الجغرافية
المؤلفون:
معلومات المقال
23 - 38
الكلمات الإفتتاحية
الملخص
This paper describes a probabilistic approach to model positional uncertainty of linear features in a vector-based geographic information system (GIS). Positional uncertainty is one of the components of uncertainty inherent in any object description in GIS. With a number of assumptions, the positional error of an arbitrary point on a line segment is derived based on the distribution of errors at the end points of the segment. This defines the probability density and the confidence region of a line segment and a set of indicators for the error of a line segment. The union of the confidence regions of the line segments establishes the confidence region of a linear feature. The derived uncertainty model is computationally feasible and has a great promise for efficient implementation in several GIS applications.
Shaheen, F. (1997). Modeling Positional Uncertainty of Linear Features in Geographic Information Systems. An-Najah University Journal for Research - A (Natural Sciences), 11(1), 23–38. https://doi.org/10.35552/anujr.a.11.1.395
[1]F. Shaheen, “Modeling Positional Uncertainty of Linear Features in Geographic Information Systems,” An-Najah University Journal for Research - A (Natural Sciences), vol. 11, no. 1, pp. 23–38, Jan. 1997, doi: 10.35552/anujr.a.11.1.395.
Shaheen, Fayez. “Modeling Positional Uncertainty of Linear Features in Geographic Information Systems.” An-Najah University Journal for Research - A (Natural Sciences), vol. 11, no. 1, Jan. 1997, pp. 23–38. Crossref, https://doi.org/10.35552/anujr.a.11.1.395.
1.Shaheen F. Modeling Positional Uncertainty of Linear Features in Geographic Information Systems. An-Najah University Journal for Research - A (Natural Sciences) [Internet]. 1997 Jan;11(1):23–38. Available from: http://dx.doi.org/10.35552/anujr.a.11.1.395
Shaheen, Fayez. “Modeling Positional Uncertainty of Linear Features in Geographic Information Systems.” An-Najah University Journal for Research - A (Natural Sciences) 11, no. 1 (January 1997): 23–38. https://doi.org/10.35552/anujr.a.11.1.395.
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