Part II
Web Data Semantics and Integration

7  Ontologies, RDF, and OWL
 7.1  Introduction
 7.2  Ontologies by example
 7.3  RDF, RDFS, and OWL
 7.4  Ontologies and (Description) Logics
 7.5  Further reading
 7.6  Exercises
8  Querying Data through Ontologies
 8.1  Introduction
 8.2  Querying RDF data: notation and semantics
 8.3  Querying through RDFS ontologies
 8.4  Answering queries through DL-LITE ontologies
 8.5  Further reading
 8.6  Exercises
9  Data Integration
 9.1  Introduction
 9.2  Containment of conjunctive queries
 9.3  Global-as-view mediation
 9.4  Local-as-view mediation
 9.5  Ontology-based mediators
 9.6  Peer-to-Peer Data Management Systems
 9.7  Further reading
 9.8  Exercices
10  Putting into Practice: Wrappers and Data Extraction with XSLT
 10.1  Extracting Data from Web Pages
 10.2  Restructuring Data
11  Putting into Practice: Ontologies in Practice (by Fabian M. Suchanek)
 11.1  Exploring and installing YAGO
 11.2  Querying YAGO
 11.3  Web access to ontologies
12  Putting into Practice: Mashups with YAHOO! PIPES and XProc
 12.1  YAHOO! PIPES: A Graphical Mashup Editor
 12.2  XProc: An XML Pipeline Language