[:ja]清華大学の大学院生で、現在 NII 神門研究室に訪問学生として滞在中の毛佳昕(Jiaxin Mao)さんから、 “When does relevance mean usefulness and user satisfaction in Web search?” のタイトルでご講演を頂きました。[:en]A seminar was given by Jiaxin Mao, a PhD candidate at Tsinghua University and a visiting student at the Kando Laboratory of NII, under the title “When does relevance mean usefulness and user satisfaction in Web search?”[:]