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[{"key": "dc.contributor.advisor", "value": "K\u00e4rkk\u00e4inen, Salme", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.advisor", "value": "Karvanen, Juha", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Sorvali, Jesse", "language": "", "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2023-06-08T04:45:31Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2023-06-08T04:45:31Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2023", "language": "", "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/87529", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Tutkimuksessa pohjael\u00e4inaineiston pohjalta haluttiin simuloida yksil\u00f6it\u00e4, joita ryhdyttiin luokittelemaan eri luokittelumenetelmill\u00e4. Tarkastelun kohteena oli, miten luokittelumenetelm\u00e4t vertailevat kesken\u00e4\u00e4n normaalijakautuneisuusoletuksen ollessa voimassa ja miten eri estimaattorien tulokset vertautuvat kesken\u00e4\u00e4n. Tavoitteena oli estimoida yleist\u00e4misvirhett\u00e4. \nKun mallissa on kaksi luokkaa ja kaksi piirett\u00e4 otoskoon ollessa 50, havaittiin kvadraattisen luokittelijan olevan optimi normaalijakautunaisuusoletuksella tuottaessa pienimpi\u00e4 virheit\u00e4. L\u00e4himm\u00e4ksi kvadraattisen luokittelijan tuloksia p\u00e4\u00e4si lineaarinen luokittelija. Vertaillessa luokittelijoita huonoiten suoriutui l\u00e4hinaapurinmenetelm\u00e4. Erot lineaarisen luokittelijan ja tukivektorikoneiden v\u00e4lill\u00e4 eiv\u00e4t olleet suuria, vaikkakin lineaarisen luokittelijanvaihtelu oli pienemp\u00e4\u00e4.\nKun otoskoko oli 500 ja mallit monimutkastuivat sis\u00e4lt\u00e4en 8 luokkaa ja 8 piirrett\u00e4, suoriutui lineaarinen luokittelija edelleen toisiksi parhaiten kvadraattisen luokittelijan antaessa pienimm\u00e4t virheet. Neuroverkot ja l\u00e4hinaapurinmenetelm\u00e4 havaittiin suoriutuvan huonoiten. Tukivektorikone lineaarisella ytimell\u00e4 suoriutui s\u00e4deperusteista paremmin ja my\u00f6s sen vaihtelu pysyi pienemp\u00e4n\u00e4. Kolmannessa tapauksessa, miss\u00e4 luokkia oli 50 ja piirteit\u00e4 8 otoskoon ollessa 10000, suoriutui l\u00e4hinaapurinmenetelm\u00e4 edelleen muita menetelmi\u00e4 huonommin. Alhaisimmat virheet olivat edelleen kvadraattisella luokittelijalla, mutta toiseksi parhaimmat tulokset tuotti satunnaismets\u00e4.\nEstimaattoreiden tulokset vaihtelivat tapauskohtaisesti. Toistuva jako opetus- ja testiaineistoksi jaolla 90/10, ristiinvalidointi arvolla K=N, sek\u00e4 Err(.632)\nhavaittiin useasti eroavan v\u00e4hiten yleist\u00e4misvirheest\u00e4. Toisaalta Err (.632) havaittiin my\u00f6s useasti aliestimoimassa yleist\u00e4misvirhett\u00e4.\nHuonoiten estimaattoreista suoriutuivat toistuva jako opetus- ja testiaineistoksi 50-50-jaolla, Err (1), sek\u00e4 ristiinvalidointi arvolla K = 2.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Miia Hakanen (mihakane@jyu.fi) on 2023-06-08T04:45:31Z\nNo. of bitstreams: 0", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2023-06-08T04:45:31Z (GMT). No. of bitstreams: 0\n Previous issue date: 2023", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "52", "language": "", "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.language.iso", "value": "fin", "language": null, "element": "language", "qualifier": "iso", "schema": "dc"}, {"key": "dc.rights", "value": "In Copyright", "language": null, "element": "rights", "qualifier": null, "schema": "dc"}, {"key": "dc.title", "value": "Luokitteluvirheen estimaattoreiden ja luokittelumenetelmien vertailu", "language": "", "element": "title", "qualifier": null, "schema": "dc"}, {"key": "dc.type", "value": "master thesis", "language": null, "element": "type", "qualifier": null, "schema": "dc"}, {"key": "dc.identifier.urn", "value": "URN:NBN:fi:jyu-202306083598", "language": "", "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Master\u2019s thesis", "language": "en", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Pro gradu -tutkielma", "language": "fi", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Matemaattis-luonnontieteellinen tiedekunta", "language": "fi", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Faculty of Sciences", "language": "en", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Matematiikan ja tilastotieteen laitos", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Department of Mathematics and Statistics", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Tilastotiede", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Statistics", "language": "en", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "yvv.contractresearch.funding", "value": "0", "language": "", "element": "contractresearch", "qualifier": "funding", "schema": "yvv"}, {"key": "dc.type.coar", "value": "http://purl.org/coar/resource_type/c_bdcc", "language": null, "element": "type", "qualifier": "coar", "schema": "dc"}, {"key": "dc.rights.copyright", "value": "\u00a9 The Author(s)", "language": null, "element": "rights", "qualifier": "copyright", "schema": "dc"}, {"key": "dc.rights.accesslevel", "value": "openAccess", "language": null, "element": "rights", "qualifier": "accesslevel", "schema": "dc"}, {"key": "dc.type.publication", "value": "masterThesis", "language": null, "element": "type", "qualifier": "publication", "schema": "dc"}, {"key": "dc.subject.oppiainekoodi", "value": "4043", "language": "", "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "matematiikka", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "luokitus (toiminta)", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "validointi", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "tilastotiede", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.rights.url", "value": "https://rightsstatements.org/page/InC/1.0/", "language": null, "element": "rights", "qualifier": "url", "schema": "dc"}]
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