Golden posterior tree sets and XMLs from DS4

Two independent posteriors of 1 million samples for DS4, including the xml files. You can unpack the tar.gz after it is downloaded.针对DS4的两份独立后验分布（posterior）样本集，总计包含100万条样本，且附带XML文件。下载完成后，可对该tar.gz压缩包执行解包操作。