{"body":[{"id":"46956942509712485","sort":"1","type":1,"role":"46955279031971266","content":"周啟源已經(jīng)寫好了新的代碼。這次，他用了時序神經(jīng)網(wǎng)絡(luò)，Elman 神經(jīng)網(wǎng)絡(luò)，來解決這個問題。模型正在訓(xùn)練中。"},{"id":"46956943063352547","sort":"1025","type":1,"role":"46955279031971266","content":"趁著這段時間，周啟源繼續(xù)開發(fā)他的 Word 轉(zhuǎn)手寫體軟件。底層功能上，他已經(jīng)開發(fā)得差不多了?，F(xiàn)在正在寫 GUI 界面的代碼。"},{"id":"46956945194059283","sort":"2049","type":1,"role":"46955279031971266","content":"晚上 9:30 左右，模型訓(xùn)練完畢，只見其在測試集上的 R 方為 0.6。周啟源見狀崩潰，于是在微信群上吐苦水。"},{"id":"46956946821461556","sort":"3073","type":1,"role":"46955279031971266","content":"場景：微信群（群名：數(shù)模沖沖沖）"},{"id":"46956948700511642","sort":"4097","type":1,"role":"46955763826394463","content":"哭了，我用了時序神經(jīng)網(wǎng)絡(luò)模型：Elman 網(wǎng)絡(luò)，效果還是不太好[哭]"},{"id":"46956961568635043","sort":"5121","type":1,"role":"46956235182291861","content":"（秒回）Adam？"},{"id":"46956968027859068","sort":"6145","type":1,"role":"46955763826394463","content":"（心想）所謂 Adam，是訓(xùn)練模型的一個算法，并不屬于任何機器學(xué)習(xí)、或者神經(jīng)網(wǎng)絡(luò)模型。"},{"id":"46956970175333363","sort":"8193","type":1,"role":"46955763826394463","content":"（心想）哎，早知道，就不在群上說了。以后有什么問題，也不要說，免得浪費時間解釋..."},{"id":"46956971232297648","sort":"9217","type":1,"role":"46955763826394463","content":"（心想）不過，現(xiàn)在還是不要懟他的好，畢竟和為貴，我還是裝作不懂好了。讓他自己去學(xué)學(xué)，這樣對彼此都好。"},{"id":"46956973933435862","sort":"10241","type":1,"role":"46955763826394463","content":"不懂耶[笑哭]"},{"id":"46956975812489380","sort":"11265","type":1,"role":"46956235182291861","content":"Ada_Nesterov？"},{"id":"46956978496835461","sort":"12289","type":1,"role":"46955763826394463","content":"（心想）這又是一個訓(xùn)練算法！哎，我無力辯解，裝不懂吧..."},{"id":"46956980644320667","sort":"13313","type":1,"role":"46955763826394463","content":"不懂[笑哭]"},{"id":"46956982523369626","sort":"14337","type":1,"role":"46956235182291861","content":"那好，我試試"},{"id":"46956984133983361","sort":"15361","type":1,"role":"46955279031971266","content":"一小時后..."},{"id":"46956985744598567","sort":"16385","type":1,"role":"46956235182291861","content":"我今天恐怕要掛在 SVR 上了。好難..."},{"id":"46956988143732158","sort":"17409","type":1,"role":"46955627729631548","content":"辛苦了，加油[可愛][親吻]"},{"id":"46956989771134422","sort":"18433","type":1,"role":"46955279031971266","content":"沒過多久..."},{"id":"46956993512440612","sort":"19457","type":1,"role":"46955763826394463","content":"我想到了。是不是 Elman 網(wǎng)絡(luò)的反饋步長為一"},{"id":"46956999686462540","sort":"24577","type":1,"role":"46955763826394463","content":"我打算改用回饋步長可以為 n 的 NARX 網(wǎng)絡(luò)來寫"},{"id":"46957000240117430","sort":"25601","type":1,"role":"46955763826394463","content":"需要全改嗎？"},{"id":"46957002119167851","sort":"26625","type":1,"role":"46956235182291861","content":"沖沖沖！"},{"id":"46957005608818888","sort":"27649","type":1,"role":"46955763826394463","content":"好，我全都改！"},{"id":"46957008276398702","sort":"28673","type":1,"role":"46955627729631548","content":"沖沖沖[握拳]"},{"id":"46957012319705835","sort":"29697","type":1,"role":"46955627729631548","content":"比賽結(jié)束后，我請你們吃海底撈"},{"id":"46957014450407567","sort":"30721","type":1,"role":"46955279031971266","content":"無人回答..."},{"id":"46957027352099519","sort":"20481","type":1,"role":"46955763826394463","content":"也就是說"},{"id":"46957030841751480","sort":"21505","type":1,"role":"46955763826394463","content":"Elman 網(wǎng)絡(luò)只能記住上一次，而不能記住上上一次"},{"id":"46957038894814905","sort":"22529","type":1,"role":"46955763826394463","content":"所以才導(dǎo)致效果不好的"},{"id":"46957045605697892","sort":"7169","type":1,"role":"46955763826394463","content":"（心想）我在訓(xùn)練 Elman 網(wǎng)絡(luò)的時候，用的就是 Adam...可能曾喜緣并不懂這個。"},{"id":"47068479857606118","sort":"31745","type":1,"role":"46955279031971266","content":"知識小卡片：什么是機器學(xué)習(xí)模型、什么又是機器學(xué)習(xí)模型的訓(xùn)練算法呢？打個比方，模型是一個餃子皮，和餃子的形狀；模型參數(shù)是餃子餡。訓(xùn)練算法，就是決定餃子餡料的東西"},{"id":"47068501869304512","sort":"32769","type":1,"role":"46955279031971266","content":"一個餃子好不好吃，當(dāng)然取決于餡料。而餡料的多少，又取決于你怎么包餃子了。而餃子好不好看，取決于餃子皮和形狀。一些花里胡哨的深度學(xué)習(xí)模型，其實很多時候是花拳繡腿。"}],"sentencecount":32}