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Strabon: A Semantic Geospatial DBMS
Published on Dec 03, 20122714 Views
We present Strabon, a new RDF store that supports the state of the art semantic geospatial query languages stSPARQL and GeoSPARQL. To illustrate the expressive power o ered by these query languages
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Chapter list
Strabon: A Semantic Geospatial DBMS00:00
Outline00:16
Main idea00:49
Example01:39
National Observatory of Athens: Fire Products Ontology02:22
The Data Model stRDF - 102:50
The Data Model stRDF - 203:00
Burnt Area Products04:17
The stRDF Data Model04:56
The query language stSPARQL and a comparison to GeoSPARQL05:26
stSPARQL: Geospatial SPARQL 1.1 - 105:33
stSPARQL: Geospatial SPARQL 1.1 - 206:59
stSPARQL: An example - 108:20
stSPARQL: An example - 209:04
The OGC Standard GeoSPARQL10:06
The system Strabon for stSPARQL and GeoSPARQL10:59
Strabon Architecture11:09
Storage Scheme - 111:57
Storage Scheme - 212:22
Storage Scheme - 312:51
Storage Scheme - 413:10
Storage Scheme - 513:19
Query Processing13:37
Query Processing (cont’d)14:38
Experimental Evaluation - 115:30
Experimental Evaluation - 215:32
Strabon vs other systems16:17
Real world workload: Data - 117:37
Real world workload: Data - 217:55
Real world workload: Queries19:15
Real world workload: Results20:03
Synthetic Workload21:20
Synthetic Workload: Sample Data21:43
Synthetic Workload: Sample stSPARQL Query22:30
Real-world Workload: 100 million triples – warm caches22:42
Real-world Workload: 100 million triples – cold caches22:53
Strabon-PG: 500 million triples Tags comparison23:04
Real-world Workload: Query Plans23:27
Findings - 123:43
Findings - 224:00
Related Work & Conclusions25:05
Future Work25:07
Thanks!25:51
Any Questions?26:15