==
[http://gitlab.icenter.tsinghua.edu.cn/xavieryao/bitmap-db|Group1]
[http://gitlab.icenter.tsinghua.edu.cn/3rd_group/bitmap_indexing|Group3]
[http://gitlab.icenter.tsinghua.edu.cn/taanng/Bitmap|Group4]
[http://gitlab.icenter.tsinghua.edu.cn/ddeerreekk/Experiment_1_Bitmap_Index|Group5]
[http://gitlab.icenter.tsinghua.edu.cn/group6/project1|Group6]
[http://gitlab.icenter.tsinghua.edu.cn/FQX/bitmap|Group8]
==项目2描述==