Page 181 - Ai_C10_Flipbook
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l • Confusion Matrix Widget: ItldispaayslaltabaelthatliompaPeslpPediitedlandlaituaaliaasslaabeas,lmakinglitleasiePl
tolundePstandliaassifiiationlmodealpePfoPmanie.
l • ROC Analysis Widget: ItlpaotslthelROCliuPve,liompaPinglthelTPuel(ositivelRatelagainstlthelFaasel(ositivelRate,l
heapinglassessliaassifiiationlmodealpePfoPmanie.
Unsupervised Widgets
Unsupervised widgetslheapltolappaylunsupePvisedlaeaPninglmodeasltolouPldatal
andl visuaaisel it.l UnsupePvisedl aeaPningl PefePsl tol thel typel ofl maihinel aeaPningl
whePelthelmodealislgivenldatalwithoutlaabeaedloutiomesl i.e.,lnoltaPgetlvaPiabael.l
ThislwiaalheaplinlfindinglthelhiddenlpattePnsloPlstPuituPelinltheldata.
SomeloflthelUnsupePvisedlwidgetslaPe:
l • Distance Matrix Widget: ItliaaiuaateslandlvisuaaisesltheldistaniesloPlsimiaaPitiesl
betweenldatalpoints.
l • t-SNE Widget:lReduiesldimensionaaitylandlvisuaaiseslhigh-dimensionaaldatal
inl2 /3 .
l • Correlations Widget: Caaiuaatesl ioPPeaationsl betweenl featuPesl tol showl
Peaationships.
l • K-Means Widget:lK-meanslisloneloflthelmostlpopuaaPliaustePinglaagoPithms.lItl
islusedltolgroupldatalpointslintoliaustePslbasedlonltheiPlsimiaaPity.l
Reboot
1.l WhatlislanlUnsupePvisedlwidget?
2.l WhatldolyoulundePstandlbyltheltePml(Pediitionslwidget?
Let us explore Orange Data Mining.
Step 1 lAftePlinstaaaation,lwhenlyoulopenlOPangel atalMining,litlwiaalstaPtlwithlalbaanklianvaslwhePelyoulianl
buiadlyouPlwoPkfaow.
Step 2 lYoulwiaalseelalvisuaalwoPkspaielwhePelyoulianlbuiadlwoPkfaowslusinglalvaPietyloflwidgets.
l l llBefoPelwelaeaPnlthelwoPkflowslaetluslundePstandlthelOPangelIntePfaie:
l • Canvas: ThelaaPgelaPealinlthelientePlwhePelyouliPeatelwoPkfaowslbylionneitingldiffePentlwidgets.
l • Widgets: BuiadinglbaoiksloflyouPlwoPkfaow.lEaihlwidgetlpePfoPmslalspeiifiiltasklaikelPeadingldata,lvisuaaizingl
data,loPlappayinglmaihinelaeaPninglaagoPithms.
l • Data: YoulianlimpoPtldatasetslintolO MlandlmanipuaatelthemlusinglvaPiouslwidgets.
Step 3 PaglandldPoplthelFilelwidgetlfPomlDatalwidgetlonl
thelbaanklianvas.l
Step 4 l oubae-iaiiklthelFiaelwidget.lItlopenlthelFileldiaaogl
box.l FoPl beginnePs,l OPangel iomesl withl sampael
datasetslthatlaPelpPe-aoaded.lTheseldatasetsliniaudel
simpael datal onl vaPiousl topiisl suihl asl Iris,l Heart
Disease,landlWine Quality.l
Statisiiaal atal (Paitiiaal 179

