0.25
0.5
0.75
1.25
1.5
1.75
2
Representation and Querying of Valid Time of Triples in Linked Geospatial Data
Published on Jul 08, 20132866 Views
We introduce the temporal component of the stRDF data model and the stSPARQL query language, which have been recently proposed for the representation and querying of linked geospatial data that chang
Related categories
Chapter list
Storing and Querying the Valid Time of Triples in Linked Geospatial Data00:00
Outline - 100:14
Time dimensionsin linked geospatial data00:52
Example of valid time01:46
Previous work02:34
Outline - 204:16
The “s” in stRDF and stSPARQL04:25
Strabon (http://strabon.di.uoa.gr)05:26
The “t” in stRDF06:14
The “t” in stSPARQL07:44
Example08:49
ExamplestRDF graph09:03
stSPARQL query (1/2)10:24
stSPARQL query (2/2)11:25
Outline 313:05
Translating quads to triples13:12
Translating quad patterns to triple patterns14:25
Strabon extended with valid time14:59
Outline 416:14
Competitor Systems16:21
Datasets17:33
Query response time as input dataset grows17:51
Query response time with respect to query complexity - cold caches(sec)19:02
Query response time with respect to query complexity - warm caches(sec)20:15
Outline 520:23
Conclusions and Future work20:25
Thank you for your attention!21:13