The key definitions of spatio-temporal data modeling are summarized and the requirements of spatio-temporal database community, including temporal semantics, spatial semantics, spatio-temporal semantics and query capabilities are specified 摘要闡述了時(shí)空數(shù)據(jù)建模的主要定義,分析了時(shí)空數(shù)據(jù)庫(kù)領(lǐng)域的建模需求,包括時(shí)態(tài)語(yǔ)義、空間語(yǔ)義、時(shí)空語(yǔ)義和查詢能力。
The key definitions of spatio-temporal data modeling are summarized and the requirements of spatio-temporal database community, including temporal semantics, spatial semantics, spatio-temporal semantics and query capabilities are specified 摘要闡述了時(shí)空數(shù)據(jù)建模的主要定義,分析了時(shí)空數(shù)據(jù)庫(kù)領(lǐng)域的建模需求,包括時(shí)態(tài)語(yǔ)義、空間語(yǔ)義、時(shí)空語(yǔ)義和查詢能力。