Data Science之你問我地答

用戶1

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30 Like 4 Dislike
CapaCitor 2020-05-26 13:13:29
岩呀
識Linear regression又話自己識
識call lib做cnn又話自己識
根本冇baseline
利維亞的傑佬 2020-05-26 13:28:50
過hr真係最難果關
MC_Ride 2020-05-26 23:24:11
留名,有無巴打睇過The elements of statistical learning?睇左20幾頁已經覺得好撚難
sdvsvsdav 2020-05-26 23:57:16
some of the IMPORTANT derivations in this book are put in the exercises
for example, the derivation of smoothing spline

what you need is ... a solution manual written by others...
https://waxworksmath.com/Authors/G_M/Hastie/WriteUp/Weatherwax_Epstein_Hastie_Solution_Manual.pdf
MC_Ride 2020-05-27 00:11:21
數底差搞到睇得好辛苦,d equation 又成日跳step
MC_Ride 2020-05-27 00:12:56
Thx巴打,我都搵到呢個source,依家都係一路睇一路google
CapaCitor 2020-05-27 00:32:57
何苦呢
三七二十一 2020-05-27 07:26:30
係咁㗎啦,佢係得登㗎,逼你要拎支筆出黎諗吓嘢,唔係只係齋睇。Maths textbook半頁睇一日唔係乜嘢特別事
如果真係想明晒同記憶深入啲,係應該自己慢慢complete 返嗰proof, 唔係好難領悟倒啲人點諗倒個proof 㗎。

我讀master 嗰時會將啲non trivial but important 嘅proof次再寫低做note, 加好多annotation 去提一個step點跳,而家都成日會refer 返啲note

例子
絲雨細如愁 2020-05-27 13:09:06
無computer science底但想學algorithm/machine learning
點入門?
1729 2020-05-27 14:06:06
Algorithm既話
如果自問math OK可以睇下Kleinberg同Tardos本Algorithm Design
math唔OK既可能睇下discrete math先
辛頓Zenden 2020-05-27 23:35:45
https://t.me/DybalaJuve10
巴打請加我,想一齊學習交流🙇🏼‍♂️
重整化群 2020-05-28 06:32:49
look up "double decent" in neural networks if you haven't
Monte.Carlo 2020-05-28 18:37:42
又或者睇An Introduction to Statistical Learning打下底
呢本淺好多, 不過之後睇ESL, 數嗰方面應該都係要靠自己
sdvsvsdav 2020-05-28 22:56:34
Stanford Statistics 315a Lecture note
http://statweb.stanford.edu/~tibs/stat315a/

maybe useful...
須盡歡 2020-05-29 00:36:32
有冇巴打做緊/過/ 識人做馬會data scientist? 分享下
岀糧買騰訊2020 2020-05-29 00:51:23
唔同department 應該會請唔同要求既DS
須盡歡 2020-05-29 11:13:14
主要想睇下工作氣氛如何,tools 先唔先進
岀糧買騰訊2020 2020-05-29 11:26:53
大公司應該每條team唔同啦
MC_Ride 2020-05-29 13:06:06
Thx巴打,等我研究下先
2020-05-30 22:54:48
考試真係記憶力大賽,明咗易記啲,不過overall都係難記,尤其考試一次過要背10條proof嗰陣時。
三七二十一 2020-05-31 11:30:27
呢啲睇prof la, 我嗰時讀嗰個有得帶一張A4雙面cheat sheet (其實用唔著多,prepare chests sheet 只係温書嘅一部分)同埋要你即場proof 嗰啲都係啲一一定要識嘅basic 嘢,唔似assignment 嗰啲咁又諗餐死...
張洪年世界第一 2020-06-01 08:39:14
想問python/r,識到咩程度先算係「識」
而家係咪基本上無公司會用SAS?

另外有無巴打黎緊9月會讀DS master,可以相認下
用戶1 2020-06-01 10:13:32
有唔少傳統既大公司仲用sas,但會越黎越少
起碼識晒data import, featuring engineering, model building validating掛
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