Relationship Queries on Extended Knowledge Graphs
Mohamed Yahya, Denilson Barbosa, Klaus Berberich, Qiuyue Wang, Gerhard Weikum · 2016
Entity search over text corpora is not geared for relationship queries where answers are tuples of related entities and where a query often requires joining cues from multiple documents. With large knowledge graphs, structured querying on their relational facts is an alternative, but often suffers from poor recall because of mismatches between user queries and the knowledge graph or because of weakly populated relations.