Decision Trees

Decision Trees - l " ' - 4mm cam-5L - : D E\S\ON...

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Unformatted text preview: l " ' - 4mm cam-5L - : D E\S\ON TREE5! Bald“,q Lm) DEM“ i al+= _ So -Fo,r , we, have. cL‘swimd marked; -Hna+ es-Hmnk: -Hn¢ obstch and "Ham 006 “Hum WSW“ +0 leaf“ “'1'”- dbm‘mfnw firth-m3 CLI’LELIHODES BASEB\ -\eofn "Hm dI'So'imfnoAJ- ~ch41'ons alimch wH’hou+ Ne. edge "HM.— cJass dmsf-Hm (btscalmm/«NT BASED) cs—HM afinfl ‘Kq. 4-ru. is Coumeol ch ink/no! decision nodes and leaUeS. cliscrek A decision ' ‘13 Decision nodes Correst +0 4:5”: Qua-Hon whose ow’roomes \qbel "Hm bronchco. _ 93 Leaves de-Fine. a class Coach-tad flaw") ——. \n +rainir3 {+51 aim is +0 ammc} a 47“ Yielding minimum error. We. mad how: More. ‘Hnm one Such hex. Thqs’we also aim 4O minimize i5 NP_WP'6+C ’wc Ni” “'H‘IL #22 SEC ('fiar SiM‘PliCHB3. Since. "H15 Fmb'm u): '3er mc+hods issued on Ws-i—icsfdoes ncl' gal-term “1513b For a given 4+uinin3 561’ ,crl' Each S‘H-P , enact-13 all 'fossiblc. mag .Trex. 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I - IO'FGSPI‘} ' r mmom We) I+Qjm3 Mawwa‘h be‘rwem The +ra'miffl Mme) be.\m3‘m5 'h: (:me as 9.21% 150mb woukl be enough, "5%" “W SP“ W“ minimum mp0 RESERVE—.3- exercibe -. How "r0 grow a decision 411m ~me The "Raining © inpxfl's mi— X1 X1 dass red 0.5" '1 ' fed 0 1 ‘1- grem o '3' '2. Hue o I 4 W4 —0 ‘J' 2 5mm 0 I 4 3mm 0 q 9. blue. 0 2' MisfcluSflFICaHak: I 2 ’1 __ moot E“ 'mrm‘a “ __ when "than: is noise {growing ‘h'ees Mr] “IT-.45 are Pure resuHs In Vera lows; final-4H5 1pmba’olj leads +0 Over-me03. Thus ,wt Cm 5+9? when ium'aB 10,9) cgmp Law a. Cad-bin ‘Hnresho‘é (inde 0? 5+0??i!5 mhzm ICm)-:=o3_ln PHrfis 0039., H‘ W‘ng be: uaevFul "‘13 he? CJn‘n Probaan‘ie; 41:32AM yum Clan Iabcls. RESERVE _ W- I Evasion 'h-eeo ‘ . I. 6) s - In rcarcssim 41459;; I 43 Nwwm‘ca] tau-fibu‘rs in leaves (infith of (1‘00? 145cm) 9-) Errur «was-we ~F0r The good-'10“) :1 Wk? (ire-km! 0F 5“ ‘IMP-W’fi New —. Onc cornmm' mgj’kool ~fiy msurinfl error is +0 (.06 The mam Square mm (H— {.5 aL‘ao foss%lc 4n the ID'H'IQK War fmc‘Hms) -—T"\2 mean Square Cray a+ node m is defined as: Eon»: 4....“ 2 (r'._9mf Eon» :rhem Square error mmm Nm MED.“ Mm Lumber Drsmpleo 61+ nchm b,“ '. 561' of Sonpleo 04 gm -_ ezsh‘ was! Dud'pfi a+ node m r.- '. owl—Pud- oF' Sump}: x; ‘“ Va?“— +° CREW 9m l—fiy cxwp‘c I 'HM. mm (or TL; Nadia.) O‘F W+Pu+fi o-F insfmm readain node 01 could be- and“ __ "Tl-w. mm Square mr a 53m 513“? S is as: «9153: A Z (F.'-— smachL—i— 2 (Vi “fimrn'gwflzj N'“ x.- e Dam“) X ; ébmrrigkt) km- — Drama) 01“ bmtdgw\ we 1‘“ 9e“ 010 Jrraim‘nj Scmple) in m l-e-Ff md (rt-SWCHUQB . ~ 3mm md amidst») care ’11... csth 1% m It?!— cad r33\“‘\' 9?“): IFCSPCC'HUeLLj. I —— \n cmsd-rudw'nj TL; +112. “we Sdedr a. 5?“)! mm minimtm Error moswc or? each ski).Wt_ Hank-{£13 3m 41% +ru un-h'] ~Hwe error meowa 46M; below a Ctr—Rain Thmgvpld_ (IF we Ln: 11+. mam values -For 'vaa esJHMca-k.) 249615 Cred-m Q Cmsi'na-l- afaPrDK'lma'HOr-a) RESERVE n: _ fixercim: Show ‘H'u. effid' OF- selecHaa +41 ‘Hnrmhold (of!) on 6) w (nPPmKIMchIJX 'HNL ‘kminina me below. PreFI-uninfl 154m? SP‘i‘H'infi H: +he number of erming Samples, orl' at node: is Smaller W a cermm of flu ~l'minfr19 dorm- (rgjmien level op +4» MFR/~93) P°5+PMi03 1 67% “Wu +raa. unh’W :3r is Pure and Then I'Drme ’flne “MM ‘93 using My clam-I-Imwck i3 (Io—I— med in Hating (xi-a“. Nah +hq+ 'Fefrminfl is 'Fas’ra LUV!" 'Poshfminj muting lends +0 More. accurolt raj-HHS . RU“!- admofion SUPP: Hum-l- “ wish +0 £1533" 0‘ Sfi-W’An ‘fixod- OLA-qu ‘HM. risk SEA—Hag cwicn {liq (hiahflrisk Ifrum-nalu'gm,n‘sl‘. or low..n‘sl-_) XI: living do}: 4o bird Migru-I-{m fat-fit“) (ch Ado) 5‘11 Ming Paula (Yes/No) X3 : Canine-{- mmr: Sick. POLIHTL/ (Yes /M03 X4 : Sender (mam [#emalc3 RESERVE r—é- Suppose 'H'wfi using *aim‘rg ample) ; we W (11¢ 'Follouulhfl® decision "Vet: From 'H-u's decision +ren. ,we. eat-Hod- SW NW): Rule I 1 :‘Ics\ I Ruin : "IF (Carmel =Mo3 and {Miaaeg +hen median-fish Rum-,3 : i {I - (comma =.No\ and {finding =No) cm! (£32m) ’H'xm Median—(Bl: RuleLt 1 {1c (Conhd-zMOX and (WE/35M03 and “Him Iona—(13L _ No+c I-Hna+ -H\i5 dedsinq 47a doesnol' me \\3£ndeF"-€CDW€ .We can UN?- decision +022.) if] {(911111 ScICC'HOfi, __ Na cm Conpuk “rule Suttwn each rule“ TN) Cm be cmPI-dfid ‘13 'nh-L 0F "Yninirfl dam Camera! ‘33 m (“It - RESERVE :3 — ...
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This note was uploaded on 04/02/2008 for the course CS 464 taught by Professor Demir during the Spring '08 term at Bilkent University.

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Decision Trees - l " ' - 4mm cam-5L - : D E\S\ON...

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