Oriented Regions for Linearly Conceptualized Features

UMaine Alert

Posted: April 19, 2024 - 1:32 PM

At approximately 9:24 a.m. on Friday, April 19, a University of Maine graduate student was struck by a university vehicle on Long Road at the University of Maine campus in Orono. The student reports that they are at a local hospital with minor injuries.

Emergency services, including the Orono Fire Department, University Volunteer Ambulance Corps, University of Maine Police Department, Orono Police Department and Penobscot County Sheriff’s Office responded to the scene.

The university vehicle involved in the incident was a Chevrolet Express van. It was being operated by a university employee.

Counseling services and support are available for students, faculty or staff who may have been affected. The Counseling Center can be reached at 207-581-1392 and the Dean of Students Office can be reached at 207-581-1406.

The scene has been cleared and Long Road is now accessible. An investigation is being conducted by the University of Maine Police Department with assistance from the Penobscot County Sheriff’s Office Crash Reconstruction Unit. Any witnesses to the incident are encouraged to contact Lt. Noel Santiago at noel.santiago@maine.edu.

Published: 09/2014

Author(s):

Lewis J.A
Egenhofer M.J

Abstract:

Abstract:

Spatial scenes are abstractions of some geographic reality, focusing on the spatial objects identified and their spatial relations. Such qualitative models of space enable spatial querying, computational comparisons for similarity, and the generation of verbal descriptions. A specific strength of spatial scenes is that they offer a focus on particular types of spatial relations. While past approaches to representing spatial scenes, by recording exhaustively all binary spatial relations, capture accurately how pairs of objects are related to each other, they may fail to distinguish certain spatial properties that are enabled by an ensemble of objects. This paper overcomes such limitations by introducing a model that considers (1) the topology of potentially complexly structured spatial objects, (2) modeling applicable relations by their boundary contacts, and (3) considering exterior partitions and exterior relations. Such qualitative scene descriptions have all ingredients to generate topologically correct graphical renderings or verbal scene descriptions.

Citation:

Joshua A. Lewis and Max J. Egenhofer. Oriented Regions for Linearly Conceptualized Features in: Geographic Information Science — Eighth International Conference, GIScience 2014, Vienna, Austria. M. Duckham, E. Pebesma, K. Stewart and A. Frank (eds.), Lecture Notes in Computer Science, Springer, September 2014 (in press).

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