@techreport{weko_47999_1,
   author	 = "酒井,哲也",
   title	 = "The Effect of Topic Sampling in Sensitivity Comparisons of Information Retrieval Metrics",
   year 	 = "2005",
   institution	 = "東芝R&Dセンター",
   number	 = "94(2005-NL-169)",
   month	 = "sep"
}