Bayanin: Ci gaban Cortana ya fara ne a cikin 2009 a cikin ƙungiyar samfuran Magana ta Microsoft tare da babban manajan Zig Serafin da Babban Masanin Kimiyya Larry Heck. Heck da Serafin sun kafa hangen nesa, manufa, da kuma dogon shiri don mataimakin sirri na dijital na Microsoft kuma sun gina ƙungiyar da ke da ƙwarewa don ƙirƙirar samfurori na farko don Cortana. Wasu daga cikin manyan masu bincike a cikin waɗannan ƙoƙarin farko sun haɗa da masu bincike na Microsoft Research Dilek Hakkani-Tür, Gokhan Tur, Andreas Stolcke, da Malcolm Slaney. mai haɓaka software na bincike Madhu Chinthakunta, da mai ƙirar ƙwarewar mai amfani Lisa Stifelman. Don haɓaka mataimakin dijital na Cortana, ƙungiyar ta yi hira da mataimakan mutum. Waɗannan tambayoyin sun yi wahayi zuwa ga fasali na musamman a cikin Cortana, gami da "littafin" mataimakin.
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