In order to overcome this limitation,sketch-content based spatial data retrieval was presented.
針對(duì)這一局限性,提出了一種基于草圖內(nèi)容的空間數(shù)據(jù)檢索算法。
<Abstrcat>Effective data source selection strategy is one of the important issues of the spatial information retrieval.
合理高效的數(shù)據(jù)源選擇策略是提高空間信息檢索系統(tǒng)效率的重要因素之一。