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