Global Positioning System Reference
In-Depth Information
If sensor readings and tracklogs are available, can mapping commence?
If there is a map available, is a more standardized approach to access
useful?
If the map is available, is it in a form that can be used to translate the
physical information into the symbolic so that sense can be made of the
information by people or machines?
Given a reading of position, can its accuracy be increased by reference to
other measurements taken by systems not yet available?
Can any map being used be improved or extended?
If an inconsistency is detected, can steps be taken to correct it?
Are there existing ontologies that can be included? For example, from
the domains of GIS (with GML) and sensing (or SML)?
Should information spaces concerning identity such as friend of a friend
(FOAF) be included?
Could geographical information such as postcodes or geotags be
included?
There seems to be a lack of standardization concerning general radio
issues such as location and frequency of transmissions (although some
progress is being made with WiFi hot-spots), so is a radio markup
language viable?
Would it be useful to expose the various cellular radios positioning
systems information in a standardized way?
9.3.5 What Would the Ontology Look Like?
Fortunately, considerable research effort has been given to help in the creation of
ontologies, and a Web Ontology Language (OWL) has been created. Lacy [7]
describes the process of using this tool and all the other supporting frameworks. In
common with much computer science, it is a layered approach where one set of
concepts supports another at a higher layer of abstraction. OWL is at the top.
OWL is used to describe the domain semantics, and several domain building
blocks are needed using concepts borrowed from object-oriented programming.
“Classes” define important entities and are defined first. These are probably
explicit within the taxonomy. For a Whereness ontology some top-level classes
could be:
<radio base stations> 2
<maps>
<mobile stations>
<tag readers>
2 <…> notation is used to show that the text between the brackets is not part of the narrative but is a
parameter, delimited by brackets.
 
Search WWH ::




Custom Search