Kuvandudzwa kweCortana kwakatanga muna 2009 muchikwata chezvigadzirwa zveMicrosoft Speech nemaneja mukuru Zig Serafin uye Chief Scientist Larry Heck. Heck naSerafin vakagadzira chiratidzo, basa, uye chirongwa chenguva refu cheMicrosoft's digital-personal-assistant uye vakavaka timu ine hunyanzvi hwekugadzira prototypes yekutanga yeCortana. Vamwe vevanotsvagurudza vakakosha mune izvi zvekutanga zvaisanganisira vaongorori veMicrosoft Research Dilek Hakkani-Tür, Gokhan Tur, Andreas Stolcke, naMalcolm Slaney. software yekutsvagisa Madhu Chinthakunta, uye mushandisi-ruzivo mugadziri Lisa Stifelman. Kugadzira mubatsiri weCortana, timu yedhijitari yakabvunzurudza vabatsiri vevanhu. Iyi bvunzurudzo yakafuridzira huwandu hwezvinhu zvakasarudzika muCortana, kusanganisira mubatsiri "bhuku".
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