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[{"key": "dc.contributor.advisor", "value": "Vihola, Matti", "language": null, "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Salonen, Henna", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2025-03-05T06:57:54Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2025-03-05T06:57:54Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2025", "language": null, "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/100556", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Pro gradussani k\u00e4sitell\u00e4\u00e4n painotusotantamenetelmien vertailua sek\u00e4 niiden tehokkuutta. Ty\u00f6n inspiraatio perustuu Pohjanheimon (2023) pro graduun, jossa esitell\u00e4\u00e4n painotusotannan teoriaa ja sen parannusehdotuksia. Ty\u00f6ss\u00e4 pyrit\u00e4\u00e4n selvitt\u00e4m\u00e4\u00e4n, miten erilaiset painotusotantamenetelm\u00e4t toimivat k\u00e4yt\u00e4nn\u00f6ss\u00e4 ja milloin ne tarjoavat parempia estimaatteja. Tutkimuksessa keskityt\u00e4\u00e4n sekoitepainotusotannan menetelmiin ja sen avulla saataviin estimaatteihin sek\u00e4 regressiokorjaukseen. Otantamenetelmiksi valittiin ositettu otanta ja antiteettinen otanta.\nMenetelmien toimivuutta tutkittiin kahdessa eri koeasetelmassa. Ensimm\u00e4isess\u00e4 testiss\u00e4 k\u00e4ytettiin ns. defensiivist\u00e4 sekoitepainotusotantaa ja tutkittiin, milloin regressiokorjattu estimaatti on tarkempi kuin korjaamaton estimaatti. Toisessa testiss\u00e4 tutkittiin miten valittu latenttimuuttujamallin normaalijakauma-approksimaatio vaikuttaa latentin muuttujan esimaatteihin ja miten approksimaation harhaa voi korjata painotusotantamenetelmill\u00e4. Molemmissa testeiss\u00e4 ehdotusjakaumana oli sekoitejakauma priorista ja normaalijakauma-approksimaatiosta, josta tutkittava itsenormalisoitu painotusotannan estimaatti lasketaan.\nRegressiokorjauksen ei havaittu parantavan itsenormalisoitua painotusotannan estimaattia tutkitussa tilanteessa. Otantamenetelm\u00e4n valinnalla oli merkityst\u00e4 estimaattiin: antiteettinen otanta n\u00e4ytti molemmissa testitapauksissa pienent\u00e4v\u00e4n estimaatin keskivirhett\u00e4 enemm\u00e4n kuin ositettu otanta.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Miia Hakanen (mihakane@jyu.fi) on 2025-03-05T06:57:54Z\nNo. of bitstreams: 0", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2025-03-05T06:57:54Z (GMT). No. of bitstreams: 0\n Previous issue date: 2025", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "37", "language": null, "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.subject.other", "value": "", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Painotusotantamenetelmien vertailua Bayes-p\u00e4\u00e4ttelyss\u00e4", "language": null, "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-202503052357", "language": null, "element": "identifier", "qualifier": "urn", "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": null, "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": null, "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": "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": "fi", "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.yso", "value": "otanta", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "tilastotiede", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "tilastomenetelm\u00e4t", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "menetelm\u00e4t", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "estimointi", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "regressioanalyysi", "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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