Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: Wani rikitarwa a cikin amfani da LDA da Fisher's discriminant zuwa ainihin bayanai yana faruwa lokacin da adadin ma'auni na kowane samfurin (watau, girman kowane bayanan bayanai) ya wuce yawan samfurori a kowane aji. A wannan yanayin, ƙididdigar haɗin kai ba su da cikakken matsayi, don haka ba za a iya juyawa ba. Akwai hanyoyi da yawa na magance wannan. Ɗaya shine amfani da maƙasudin maƙasudin maimakon maƙasudin matrix na al'ada a cikin ƙididdigar da ke sama. Duk da haka, mafi kyau lambobi kwanciyar hankali za a iya samu ta farko haskaka matsalar a kan subspace spanned da  Tambaya: Wane irin inverse ne aka ba da shawara a kan daidaitattun matrix inverse?
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