- Tytuł:
- A qualitative trajectory calculus as a basis for representing moving objects in Geographical Information Systems
- Autorzy:
-
Weghe, N. van de
Cohn, A. G.
Tre, G. de
Maeyer, P. de - Powiązania:
- https://bibliotekanauki.pl/articles/970477.pdf
- Data publikacji:
- 2006
- Wydawca:
- Polska Akademia Nauk. Instytut Badań Systemowych PAN
- Tematy:
-
obiekt ruchomy
wnioskowanie jakościowe
specyfikacja jakościowa
moving objects
qualitative reasoning
qualitative representation
spatio-temporal modelling - Opis:
- Qualitative formalisms, suited to express qualitative temporal or spatial relationships between entities, have gained wide acceptance as a useful way of abstracting from the real world. The question remains how to describe spatio-temporal concepts, such as the interaction between disconnected moving objects, adequately within a qualitative calculus and more specifically how to use this in geographical information systems. In this paper, the Basic Qualitative Trajectory Calculus (QTCB) for representing and reasoning about moving objects is presented. QTCB enables comparisons between positions of objects at different time points ro be made. The calculus is based on few primitives (i.e., distance and speed constraints), making it elegant and theoretically simple. To clarify the way in which trajectories are represented within QTCB: specific cases of movements (e.g. circular movement) are presented. To illustrate the naturalness of QTC, a "predator-prey" example is studied.
- Źródło:
-
Control and Cybernetics; 2006, 35, 1; 97-119
0324-8569 - Pojawia się w:
- Control and Cybernetics
- Dostawca treści:
- Biblioteka Nauki
Artykuł