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Holistic and Compact Selectivity Estimation for Hybrid Queries over RDF Graphs

Published on Dec 19, 20141650 Views

Freddy Lecue

Many RDF descriptions today are text-rich: besides struc- tured data they also feature much unstructured text. Text-rich RDF data is frequently queried via predicates matching structured data, combin

ISWC 2014 - Trentino

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Semantic Web

Chapter list

Holistic and Compact Selectivity Estimation for Hybrid Queries over RDF Graphs00:00
Outline00:56
Text-Rich Data-Graphs and Hybrid Queries01:01
Text-Rich Data-Graphs and Hybrid Queries (2)01:58
Problem Definition (1)02:23
Problem Definition (2)03:42
Problem Definition (3)04:45
Contributions06:20
TOPGUESS07:52
Data Synopsis07:56
Probabilistic Component (1)11:21
Probabilistic Component (2)12:47
EVALUATION13:39
Evaluation (1) – Setting13:43
Evaluation (2) – Setting (2)14:49
Evaluation (3) – Results15:49
Conclusion16:54
References18:05
References (2)18:17