發(fā)布時(shí)間：2018-02-10 22:16

  本文關(guān)鍵詞： 時(shí)變網(wǎng)絡(luò) 多粒度時(shí)空對象關(guān)系 演化過程　出處：《地球信息科學(xué)學(xué)報(bào)》2017年09期 　論文類型：期刊論文

【摘要】：對空間事物的表達(dá)與研究模型主要針對多粒度時(shí)空數(shù)據(jù)本身的描述,而不是描述多粒度時(shí)空對象的相關(guān)性。多粒度時(shí)空對象是一種新的時(shí)空對象表達(dá)方法,其中時(shí)空對象關(guān)系的演化過程是一種抽象的復(fù)雜的網(wǎng)絡(luò)的過程。本文在多粒度時(shí)空對象表達(dá)的基礎(chǔ)上,對其演化過程進(jìn)行形式化定義,提出以時(shí)變網(wǎng)絡(luò)的方法構(gòu)建初步的關(guān)系演化過程模型。通過對基于時(shí)間切片的退耕還林演化過程關(guān)系的描述與表達(dá),形成動(dòng)態(tài)實(shí)時(shí)變化的網(wǎng)絡(luò)模型,從而抽象表達(dá)退耕還林過程中的對象關(guān)系的演化過程。應(yīng)用時(shí)變網(wǎng)絡(luò)明確多粒度時(shí)空對象關(guān)系的演化過程,并對演化過程進(jìn)行初步的表達(dá)和建模,可以使對象關(guān)系變化更加清晰化,提高其層次性和效率性,為今后研究多粒度時(shí)空對象關(guān)系變化規(guī)律奠定基礎(chǔ)。
[Abstract]:The representation and research model of spatial objects is mainly focused on the description of multi-granularity spatio-temporal data itself, rather than describing the correlation of multi-grained spatio-temporal objects, which is a new representation method of spatio-temporal objects. The evolution process of spatio-temporal object relationship is an abstract and complex network process. Based on the representation of multi-granularity spatio-temporal objects, the evolution process is formally defined in this paper. This paper presents a preliminary relational evolution process model based on time-varying network, and forms a dynamic and real-time changing network model by describing and expressing the evolutionary process of returning cropland to forest based on time slice. Therefore, the evolution process of object relationship in the process of returning farmland to forest is expressed abstractly. The evolution process of multi-granularity spatio-temporal object relationship is defined by time-varying network, and the evolution process is expressed and modeled preliminarily. It can make the change of object relation more clear, improve its hierarchy and efficiency, and lay a foundation for the future study of the changing law of multi-granularity spatio-temporal object relationship.
【作者單位】： 南京師范大學(xué)地理科學(xué)學(xué)院;南京師范大學(xué)虛擬地理環(huán)境教育部重點(diǎn)實(shí)驗(yàn)室;江蘇省地理信息資源開發(fā)與利用協(xié)同創(chuàng)新中心;
【基金】：國家重點(diǎn)研發(fā)計(jì)劃項(xiàng)目(2016YFB0502300) 國家自然科學(xué)基金項(xiàng)目(41571379)
【分類號】：P208
，

本文編號：1501567