Submissions:Trajectory
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Revision as of 20:15, 17 July 2016
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General description
| Name: | Trajectory |
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| Submitted by: | AdilaKrisnadhi |
| Also Known As: | |
| Intent: | The pattern provides a model of trajectory, which is understood as a sequence of spatiotemporal points. The model generalizing the Semantic Trajectory pattern from [Hu, et al., COSIT 2013] by employing the notion of place, instead of location/geo-coordinate, to represent the spatial extent of the trajectory. This pattern is suitable for a variety of trajectory datasets and easily extendible by by aligning to or matching with existing trajectory ontologies, foundational ontologies, or other domain specific vocabularies. |
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| Reusable OWL Building Block: | http://krisnadhi.github.io/onto/trajectory.owl (817) |
| Consequences: | Unlike the original version of Semantic Trajectory, this pattern omits the hook to the data source for fixes (which was a subclass of ssn:Device) because instead of location/geo-coordinate, the notion of place is employed to capture the spatial extent. Nevertheless, it should be relatively straightforward to extend this version if the user wises to attach data source information to the fixes. |
| Scenarios: | Mike's trip to the GeoVoCamp 2012 from his home integrating data from GPS device, vehicle information, and personal information.
A toucan flies through the air as recorded by researchers in the MoveBank. The 1990 World Chess Championship event that was held in two locations at two different times. |
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Elements
The Trajectory Content OP locally defines the following ontology elements:
atPlace (owl:ObjectProperty) Connects anything (including fixes in this pattern) to Place.
atPlace page atTime (owl:ObjectProperty) Connects anything (including fixes in this pattern) to TimeEntity
atTime page hasAttribute (owl:ObjectProperty) Connects a fix or a segment to an additional information as represented by an instance of Attribute.
hasAttribute page hasTrajectory (owl:ObjectProperty) Anything that has a trajectory can use this property to connect it to the trajectory instance.
hasTrajectory page nextFix (owl:ObjectProperty) Relates one fix to the immediately following fix in the sequence.
nextFix page traversedBy (owl:ObjectProperty) Connect a segment to the moving object that traverses it.
traversedBy page
Attribute (owl:Class) Captures additional information that enriches some fix or segment.
Attribute page Fix (owl:Class) Describes a fix, which is an adorned spatiotemporal point. A sequence of fixes form the trajectory.
Fix page MovingObject (owl:Class) This is the hook to an ontology/pattern that describes the moving object, if any, which moves along the trajectory.
MovingObject page Place (owl:Class) This is the hook to other pattern/ontology that describes the notion of place, which is more general than just a location/geo-coordinate.
Place page Segment (owl:Class) The Segment class captures the "connection" between two consecutive fixes. That is, a segment starts from a fix and ends at another fix. If the pattern is used to model the trajectory of some moving object, each segment is traversed by that moving object. Additional information about a segment can be attached as attributes.
Segment page TimeEntity (owl:Class) The hook to class/pattern/ontology that models time, this class provides the temporal extent of the trajectory. One example of time model is the W3C Time Ontology.
TimeEntity page Trajectory (owl:Class) Represents the notion of trajectory, this is the main class that can be hooked with other patterns that use the Trajectory pattern. Trajectory in this model is understood as a sequence of fixes connected by segments. There is exactly one starting fix and exactly one ending fix. Each fix has a temporal extent and a place (which is more general than just a location).
Trajectory pageAdditional information
Scenarios
Scenarios about Trajectory
No scenario is added to this Content OP.
Reviews
Reviews about Trajectory
There is no review about this proposal. This revision (revision ID 12772) takes in account the reviews: none
Other info at evaluation tab
Modeling issues
Modeling issues about Trajectory
There is no Modeling issue related to this proposal.
References
