WebThe China Historical Geographic Information System, CHGIS, is a free database of placenames and historical administrative units for the Chinese Dynasties. CHGIS provides a base GIS platform for researchers to use in spatial analysis or to visualize the historical divisions of China as digital maps. Find out about CHGIS in the INTRO, PROJECT ... Web编辑 播报. 我国国内生产总值从1949到2009的变化就是时间序列数据。. 时间序列数据可作季度数据、月度数据等细分,其中很有代表性的季度 时间序列模型 就是因为其数据具有四 …
CHGIS - Harvard University
WebThe CHGIS project has been working backwards from county basemaps for the year 1911, to create a continuous time series of records that track changes in placename, administrative status, and geographic locations. It should be noted that the data for the year 1911 CE is time slice valid for a single year, and the content overlaps the time series ... Webcan-i-use-clickhouse-as-a-time-series-database} 我能把 ClickHouse 当做时序数据库来使用吗? ClickHouse是一个通用的数据存储解决方案OLAP的工作负载,而有许多专门的时间序列数据库管理系统。 然而,ClickHouse的专注于查询执行速度使得它在许多情况下的性能优于专门的系统。 关于这个话题有很多独立的基准 ... how to embroider baby onesies
时间序列数据库漫谈 - 知乎 - 知乎专栏
WebJun 6, 2024 · The China Historical Geographic Information System (CHGIS) is a historical GIS project that has created spatial datasets of populated places and historical administrative units for the period of China's history between 221 BCE and 1911 CE. CHGIS tracks changes in place names, administrative status, and geography. It is a joint project … WebJan 13, 2024 · 只不过目前网站上可供下载的数据还不多,主要包括Time Series 时间序列数据 CHGIS V4、1820年层数据 CHGIS V4、1911年层数据 CHGIS V4、DEM 数字地形图 … WebDownload CHGIS V4 Data. Version 4 (Published: 2007) Latest is Version 6. ... Citation: "CHGIS, Version 4. Cambridge: Harvard Yenching Institute and Fudan Center for Historical … how to embroider back of hats