17 theodoridis y , stefanakis e , sellis t k . efficient cost models for spatial queries using r - trees . tkde , 2000 , 12 : 19 - 32 . 18 brinkhoff t . a framework for generating network - based moving objects 第二,基于這個預(yù)測模型,我們提出了一個新的存取方法anr樹adaptive network r - tree ,它可以支持高效的預(yù)測查詢,并且適應(yīng)頻繁的更新。