๐จโ๐ฉโ๐งโ๐ฆโ๏ธ๐จโ๐ง
๐ฅ๐๐ฅ
๐ฅ๐ซ๐งโ๐คโ๐ง
[๐ฅ]โ
๐ฏ๐๐ฅ
#group selection #ordered subset #sequence elements #filtering #data mining #pattern recognition #social sequence