Page 181 - Ai_C10_Flipbook
P. 181

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


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