Range queries ask "what's inside this box?" But sometimes the question is "what's nearest to this location?" This is the nearest neighbor problem, and you don't know how big your search radius should be. The nearest point might be right next to you or far away.
8 hours agoShareSave
，更多细节参见一键获取谷歌浏览器下载
Continue reading...
更多详细新闻请浏览新京报网 www.bjnews.com.cn