3:14
2009
December
November
October
September
1
August
11
July
7
June
18
May
22
April
5
March
3
February
7
January
28
2008
December
55
November
81
October
26
September
42
August
51
July
60
June
52
May
40
April
10
March
228
February
184
January
143
2007
December
83
November
53
October
74
September
81
August
57
July
3
June
23
May
April
March
February
January
全文検索システムの評価指標のひとつとして「再現率 recall」と「適合率(精度)...
— 全文検索 - Wikipedia
Sep 10th