Research on Temporal RDF Semantic Index and Query Based on HINT
ZHANG Hang
LIU Yu
Abstract：Considering that temporal information is an important attribute in knowledge graph,researchers have proposed a va-riety of efficient schemes for storing and querying temporal RDF.However,the existing storage and query of temporal RDF fail to ful-ly utilize the temporal semantic relationship between triples,which can affect the semantic query performance of temporal RDF.Aiming at the above problems,a temporal RDF index structure based on interval index HINT is proposed.The index structure com-bines the hierarchical index of HINT and the coupled bitmap index of RDF,so that the index structure can contain the temporal se-mantic relationship between triples.On the basis of HINT and coupled bitmap index,SPARQL-oriented temporal operations are im-plemented,which can support the semantic queries of thirteen Allen temporal relations.The experimental results show that the se-mantic indexing of temporal RDF based on HINT can improve the query performance of temporal RDF.
Keywords：knowledge graphtemporal RDFtwo-level indextemporal semanticsquery optimization
Publication Date：2025-12-20
Online Publishing Date：2026-03-09(First online date of this platform, not the publication date of the document)
Pages：7( 3477-3483 )