【生成式AI時代下的機器學習(2025)】第六講:生成式人工智慧的後訓練(Post-Training)與遺忘問題

Hung-yi Lee April 19, 2025
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Hung-yi Lee

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李宏毅 webpage for ML 2021: https://speech.ee.ntu.edu.tw/~hylee/ml/2021-spring.html

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投影片連結:https://docs.google.com/presentation/d/129jFUXCPekD2Qoaq6H0Ntasm0GUiK8_X/edit?usp=sharing&ouid=115046073158939078465&rtpof=true&sd=true 33:00 1:14:15 我怕口頭上沒有說清楚,所以再用文字說明。我認為未來的趨勢是,多數語言模型仍需要具備自己獨特的能力(例如:特別擅長寫程式)。一個大型計劃可能需要由多個具備不同專長的語言模型組成團隊,共同完成,就像人類社會中的分工合作一樣。但要注意,所謂「特別擅長寫程式」,並不代表其他能力都可以一概沒有,如果有一個擅長寫程式的模型,它在團隊中的角色是程式設計師,但若它除了寫程式以外,甚至無法理解人類語言,聽不懂其他團隊成員的指令(如:「這裡有個 bug」),無法與他人溝通,那並不是我們所追求的。因此,我們並不希望在 Post-training 階段發生嚴重的遺忘現象,至於可接受的遺忘程度,則取決於實際需求。例如,一個擔任程式設計師的語言模型如果不會寫唐詩,可能還可以接受;但如果它連基本的語言能力都喪失,那就不行了。就好像人類的程式設計師也許不一定擅長社交,但至少能跟其他人類溝通。 33:26 穿越到舊石器時代,開始講古,不喜歡聽講古的同學可略過 38:41 怕口頭解釋不清楚,這裡用文字補充。正確答案是英文 "seventy",但語言模型輸出的是阿拉伯數字 "70"。按照該基準資料的評分方式,這會被判定為答錯,但其實語言模型是答對的。 45:20 Reply 為拼寫錯誤,應為 Replay 51:49 講古結束,回到現代

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