Sven Lieber

rdf shacl constraints statistics owl ontology engineering axioms ontology provenance linked data social feed manager knowledge graph privacy besocial warc social media archiving montolo restrictions odrl vocabulary xapi data integration json-ld json sparql gdpr adaptive learning learning analytics vowl uml shapevowl shapeuml digital humanities dhinbelgium twarc web archiving twitter glam user interface yarrrml rml ead encoded archival description marc21 data quality data cube github data shapes iswc ecodalo federated querying advertising disjointness cardinality ontology reuse modeling reasoning methodology shex shapes funding agencies data processing data management plan semantic web workflow contextual data user behavior data lrs learning record store serif tincan2prov etl