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作者 VIATOR 在 PTT [ DataScience ] 看板的留言(推文), 共26則

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全部NBA3279Gossiping2042CCK-FREE755studyabroad324PhD157CCK-GENERAL125CCK-CHUHEN91NBA_Film81NTUMETA67FITNESS65CCK62ChangHua59basketballTW55Eng-Class53Mechanical44movie38SENIORHIGH38DataScience26worldbasket26LA23R_Language21Tech_Job21MuscleBeach20WomenTalk19MATLAB17BASKET-RULES16Militarylife15Olympics_ISG15AfterPhD14NTU14USCTSA13GRE11nCoV201910Tainan9basketball8TaiwanDrama8TOEFL_iBT8ChineseChess7fruits7graduate7joke7STREET_BALL7EZsoft6Hate6AllTogether5Baseball5BLAZERS5Boy-Girl5ChessService5ck49th3105CSMU-MIS955KS95-3025KS96-3055NCU97ME-B5R923220PA5SSSH-16th-Fk5TuTsau5YP88-3095YP94-3025AIR_JORDAN4Array4Aviation4Beauty4KoreaDrama4Laser_eye4NTUMEB94-HW4Viator4Visual_Basic4WorldCup4Browsers3Cavaliers3chess3Food3IME3Jacky_Woo3Salary3specialman3Statistics3tabletennis3YOLO3AntiVirus2bicycle2CCRomance2CGSH87th_3152CGSH88th3182Chess_Castle2cksh81st3102Cognitive2dictionary2EarthScience2EngTalk2FubonBraves2HatePolitics2HCSHch13_3112image2L_TalkandCha2LeBronJames2marriage2NBAEasyChat2NSYSU_MSOE992NTULibrary2NTUMEB93-HW2NTUMEB952PHS2Python2RESIT2Road_Running2ScienceNote2Sixers2soul2TaiwanDa2Teacher2UTAH-JAZZ2Viator93Chia2Viator96Gang2Viator97Chia2Viator97Yii2X-game2YP91-3112A-Sun1Agronomy-871Architecture1B98310XXX1Baki1Bioindustry1Cajh303_XD1CATCH1CCK-SERVICE1CCSH_82_3161CCU_DSP5211CCU_talk1CCUfinGrad951Celtics1CFantasy1CGSH86th3131CGSH86th3171Chiayi1Christianity1CHSH-93-3041Civil1CIVIL-Team1ck48th3041ck56th3311ck58th1111ck60th3271ck61st3021cksh79th3101cksh80th3011cksh85th3111cksh85th3191CKSHHG22th1CLHS-50-141CMU_M481Conan1Contacts1cookclub1CourtBasketB1CSMU-N951CSMU-OSH1CTSH913021CTSH923011CYCU_CYMA901CYCU_ICE90AB1DirectSales1E-appliance1Economics1Ecophilia1Examination1Faith1FCU-LM100B1FCU_Talk1Federer1Feminism1FJU_Fashion1FLAT_CLUB1FSSH_97_3101FuhTan1G-Basketball1GIEE_951GuessX31Hawks1HCHS_ALUMNI1home-sale1HSNU_10971Japanese-B941Jeans1KMSH_C981KNU1KS92-3171KS97-3121Lab7201Ladies_Digi1LCD1LivingGoods1LoL1LTK1MD39XB1MEbasketball1medstudent1MingDow1MIT1MLB1NCCU1NCCU05_SOCIO1NCCU08_Ethno1NCCU_CCUDP1NCCU_CHESS1NCCU_SEED1NCHU-AGR081NCHU-MMA1NCHU_MBA981NctuNthuTYSH1NCU_Talk1NCUFingrad091NDHU-phy1011NDHU-phy1021NDMC-M1031NFU1Nightmarket1NKFUST-CCE901NSYSU1NSYSU_MSOE011NTHU_LST_961NTHU_MDL1NTHU_TM961NTIHS1NTPU-CSIE981NTU-Karate1NTU10DFLL1NTUAC941NTUBSE-B-1001NTUCH-881NTUDFLL-MA981NTUE-ME1001NTUE_Nse1011NTUEE_Lab2071NTUGIEE_AMTG1NTUGIPO_PNSL1NTUIM-161NTUMath981NTUMEB86-B1NTUMEB88-C1NTUMEB88-CHW1NTUMESA1NTUSA1NUTN_SSSS1NUU-SHE-971NYUST1NYUST98_FING1OIT_main1Orzhong97cl1PCCU_AM1PCCU_MLAW1PCCU_Talk1PCman1PCSH91_3051pesoftball1PHAT-MEN1PingTung1Pisces1politics1R973230XX1rent-exp1SciMix1Sean1SP2_Basket1SSSH-16th3091SSSH-17th3061Stock1STU1StupidClown1SuperStarAve1SYSOP1t-management1tax1TCFSHvolley1Tea1Tennis1TFG99JUANG1TFGchinbeast1TFSHS61th3021TFSHS66th3071TFSHS69th3141THU-CHEM941Thunder1TigerBlue1TKU_EE_92C1toberich1TSH_9141TTU-I91A1TunHua05t3111TYSH49-3021Warfare1Weyslii1Windows1WuLing50-3131XiangSheng1Xiangyang1Zastrology1<< 收起看板(299)

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[討論] 各位會買相關書籍來看嗎?

[ DataScience ]16 留言, 推噓總分: +5

作者: ok8ok8 - 發表於 2025/10/31 10:41(1月前)

10^F推VIATOR: 好書可以讓理解變容易，有好書一定會買11/16 08:23

[問題] Imbalanced dataset使用SOMTE求教

[ DataScience ]19 留言, 推噓總分: +5

作者: boggy - 發表於 2022/05/06 22:41(3年前)

17^F推VIATOR: 我過去的經驗SMOTE也變差(不過變差幅度沒統計顯著差異)05/10 00:02

18^F→VIATOR: SMOTE最根本原理是根據knn，但knn不適合高維度的問題05/10 00:04

19^F→VIATOR: 所以我認為SMOTE對高維度的問題沒太大的幫助05/10 00:04

Re: [問題] cross validation請益

[ DataScience ]3 留言, 推噓總分: +1

作者: VIATOR - 發表於 2022/03/21 11:13(3年前)

3^F→VIATOR: 還是有可能會有偏差，但那已經是最客觀的方法了03/26 18:58

Re: [問題] cross validation請益

[ DataScience ]6 留言, 推噓總分: +1

作者: VIATOR - 發表於 2022/02/17 01:06(3年前)

5^F→VIATOR: 不需要調hyperparameter的話，可以做一般CV就好了02/17 08:45

[問題] 為什麼現在新模型都很少割出test data?

[ DataScience ]35 留言, 推噓總分: +9

作者: ruthertw - 發表於 2021/08/14 15:58(4年前)

32^F→VIATOR: 沒有test set, out-of-sample error可能會很高09/06 08:44

33^F→VIATOR: 一堆研究在亂搞,做出看似很漂亮的數據,實際應用就破功09/06 08:46

[討論] ML是不是有些東西不太教？

[ DataScience ]30 留言, 推噓總分: +9

作者: rn940111 - 發表於 2020/11/24 14:28(5年前)

17^F推VIATOR: VC dimension要花很多時間瞭解，不知道對應用也沒什麼差11/25 02:08

[討論] 統計學習與機器學習的差異

[ DataScience ]10 留言, 推噓總分: +3

作者: wang19980531 - 發表於 2020/11/09 09:43(5年前)

8^F推VIATOR: 其實沒很大的差異11/19 15:40

9^F→VIATOR: 統計學習比較偏解釋現象，機器學習比較追求準確度11/19 15:42

[討論] 機器學習數學參考用書

[ DataScience ]11 留言, 推噓總分: +6

作者: jienfong - 發表於 2020/07/06 16:14(5年前)

6^F推VIATOR: Introduction to statistical learning07/14 15:38

[問題] 請問決策樹和類神經網路的數學基礎

[ DataScience ]33 留言, 推噓總分: +18

作者: rebe212296 - 發表於 2020/03/06 14:14(5年前)

20^F推VIATOR: 如果你是想懂boosted tree的話，可以參考經典書:03/16 15:35

21^F→VIATOR: Elements of Statistical Learning03/16 15:35

22^F→VIATOR: 作者免費提供線上pdf版本，不過還蠻艱深的就是了03/16 15:38

23^F→VIATOR: 另一本經典就是introduction to statistical learning03/16 15:39

24^F→VIATOR: 這本就好懂很多，不過有些東西就被省略掉了03/16 15:40

26^F推VIATOR: ESL就當做參考書就好了，有需要的部份再看就好了 XD03/17 10:38

27^F→VIATOR: 直接從頭看到尾太多太難了03/17 10:40

[問題] ROC Curve 表達醫學影像正確率

[ DataScience ]5 留言, 推噓總分: +2

作者: Bjornstad - 發表於 2020/01/17 10:39(6年前)

1^F推VIATOR: 你要有threshold才能決定那4個象限01/17 12:10

2^F→VIATOR: ROC curve包含所有的threshold01/17 12:11

3^F→VIATOR: 每一個點就是一個threshold，所有的threshold連成那條曲線01/17 12:11

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