{"id":26974,"date":"2026-09-27T20:02:12","date_gmt":"2026-09-27T18:02:12","guid":{"rendered":"https:\/\/www.itspy.cz\/thesis\/adaptive-models-for-classification-of-imbalanced-datastreams\/"},"modified":"2026-10-23T13:46:42","modified_gmt":"2026-10-23T11:46:42","slug":"adaptive-models-for-classification-of-imbalanced-datastreams","status":"publish","type":"thesis","link":"https:\/\/www.itspy.cz\/en\/thesis\/adaptive-models-for-classification-of-imbalanced-datastreams\/","title":{"rendered":"Adaptive models for classification of imbalanced data\nstreams"},"content":{"rendered":"<p>T\u00e1to pr\u00e1ca sa zaober\u00e1 klasifik\u00e1ciou nevybalansovan\u00fdch<br \/>\nd\u00e1tov\u00fdch pr\u00fadov s konceptov\u00fdm<br \/>\ndriftom. Roz\u0161irujeme heterog\u00e9nny ensemble model DDCW<br \/>\n(Diversified<br \/>\nDynamic Class-Weighted) o mechanizmy na zvl\u00e1danie<br \/>\nnevyv\u00e1\u017eenosti tried:<br \/>\nadapt\u00edvne per-class v\u00e1hovanie, replay men\u0161inov\u00fdch vzoriek s<br \/>\naugment\u00e1ciou regulovanou<br \/>\nsp\u00e4tnou v\u00e4zbou na senzitivita v\u00e4\u010d\u0161inovej triedy, soft<br \/>\nvoting a Page-<br \/>\nHinkley detektor driftu. Model bol implementovan\u00fd v Pythone<br \/>\ns vyu\u017eit\u00edm frameworku<br \/>\nscikit-multiflow a vyhodnoten\u00fd na 15 datasetoch vr\u00e1tane<br \/>\nsyntetick\u00fdch<br \/>\npr\u00fadov s r\u00f4znymi typmi driftu, re\u00e1lnych tabul\u00e1rnych d\u00e1t a<br \/>\ntextov\u00fdch d\u00e1t predspracovan\u00fdch<br \/>\npomocou GloVe embeddingov. Experimenty ukazuj\u00fa, \u017ee<br \/>\nnavrhovan\u00fd<br \/>\npr\u00edstup prin\u00e1\u0161a zlep\u0161enie na silno nevyv\u00e1\u017een\u00fdch datasetoch,<br \/>\nzatia\u013e \u010do na<br \/>\nmierne nevyv\u00e1\u017een\u00fdch d\u00e1tach zost\u00e1vaj\u00fa \u0161tandardn\u00e9 ensemble<br \/>\nmet\u00f3dy konkurencieschopn\u00e9.<\/p>\n","protected":false},"featured_media":26712,"template":"","meta":{"_acf_changed":false,"_links_to":"","_links_to_target":""},"university":[183,467,181],"thesis-year":[466],"class_list":["post-26974","thesis","type-thesis","status-publish","has-post-thumbnail","hentry","thesis-year-466"],"acf":{"autor":"Mat\u00fa\u0161 Konopinsk\u00fd","portret":"","vedouci":"doc. Ing. Martin Sarnovsk\u00fd, PhD."},"_links":{"self":[{"href":"https:\/\/www.itspy.cz\/en\/wp-json\/wp\/v2\/thesis\/26974","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.itspy.cz\/en\/wp-json\/wp\/v2\/thesis"}],"about":[{"href":"https:\/\/www.itspy.cz\/en\/wp-json\/wp\/v2\/types\/thesis"}],"version-history":[{"count":1,"href":"https:\/\/www.itspy.cz\/en\/wp-json\/wp\/v2\/thesis\/26974\/revisions"}],"predecessor-version":[{"id":27029,"href":"https:\/\/www.itspy.cz\/en\/wp-json\/wp\/v2\/thesis\/26974\/revisions\/27029"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.itspy.cz\/en\/wp-json\/wp\/v2\/media\/26712"}],"wp:attachment":[{"href":"https:\/\/www.itspy.cz\/en\/wp-json\/wp\/v2\/media?parent=26974"}],"wp:term":[{"taxonomy":"university","embeddable":true,"href":"https:\/\/www.itspy.cz\/en\/wp-json\/wp\/v2\/university?post=26974"},{"taxonomy":"thesis-year","embeddable":true,"href":"https:\/\/www.itspy.cz\/en\/wp-json\/wp\/v2\/thesis-year?post=26974"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}