Id |
Subject |
Object |
Predicate |
Lexical cue |
T251 |
0-54 |
Sentence |
denotes |
Every IndoorGML cell has a Location in space and time. |
T252 |
55-152 |
Sentence |
denotes |
This geospatial encoding was performed by GeoJSON (Geographical JavaScript Object Notation) [59]. |
T253 |
153-237 |
Sentence |
denotes |
Every sensor was referenced by the IndoorGML cell in which the sensor was installed. |
T254 |
238-376 |
Sentence |
denotes |
Each Thing can have multiple Datastreams, which are collections of Observation entities grouped together using the same Observed Property. |
T255 |
377-465 |
Sentence |
denotes |
For the cleaning use case, a different Datastream for each sensor’s phenomenon was used. |
T256 |
466-525 |
Sentence |
denotes |
Each Datastream contained a Sensor and an ObservedProperty. |
T257 |
526-587 |
Sentence |
denotes |
This refers to the instruments that can observe a phenomenon. |
T258 |
588-688 |
Sentence |
denotes |
For this paper, eight different Datastreams were defined, including, proximity, density, and coughs. |
T259 |
689-776 |
Sentence |
denotes |
An ObservedProperty specifies the phenomenon and also contains the unit of measurement. |
T260 |
777-920 |
Sentence |
denotes |
A Datastream can have several Observations, and they dictate the value for the phenomena encoded by the OGC Observations and Measurements (OM). |
T261 |
921-999 |
Sentence |
denotes |
For our example, this can refer to the values taken from a sensor measurement. |
T262 |
1000-1062 |
Sentence |
denotes |
FeatureOfInterest identifies the characteristics of the Thing. |
T263 |
1063-1177 |
Sentence |
denotes |
The Thing entity is an IndoorGML cell and the FeatureOfInterest entity describes the characteristics of this cell. |
T264 |
1178-1403 |
Sentence |
denotes |
For example, Figure 7 shows that “Duration” spent by a smartphone user in a room recorded within the proximity of a BLE beacon is considered a Datastream entity that kept the “Time” duration in seconds as an ObservedProperty. |
T265 |
1404-1560 |
Sentence |
denotes |
This Datastream entity used “Smartphones” as the sensor entity to keep Observations which are the duration of time that users spend in each cell in seconds. |