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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": "Taskinen, Sara", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.advisor", "value": "Ovaskainen, Otso", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Kulmala, Markus", "language": "", "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2022-02-21T07:50:41Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2022-02-21T07:50:41Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2022", "language": "", "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/79850", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Lajiyhteis\u00f6jen mallintamiseen liittyvill\u00e4 menetelmill\u00e4 pystyt\u00e4\u00e4n saamaan tietoa ekologisista vuorovaikutussuhteista ja ennustamaan ymp\u00e4rist\u00f6kovariaattien muutosten vaikutusta lajiyhteis\u00f6ihin. T\u00e4llaiset kysymykset ovat nykyisin eritt\u00e4in keskeisi\u00e4, kun tutkitaan esimerkiksi ilmastonmuutoksen vaikutusta lajien esiintyvyyteen ja lajiyhteis\u00f6jen koostumukseen.\n\nLajiyhteis\u00f6j\u00e4 voidaan mallintaa sek\u00e4 frekventistisen tilastotieteen ett\u00e4 Bayesmenetelmien avulla. T\u00e4ss\u00e4 ty\u00f6ss\u00e4 tutkitaan kahden vaihtoehtoisen mallinnustavan eroja ja samankaltaisuuksia sek\u00e4 teoreettisesti ett\u00e4 empiirisesti. Vertailun kohteena ovat frekventistinen yleistetty lineaarinen latenttimuuttujamalli (generalized linear latent variable models, GLLVM ) ja bayesilaisittain sovitettu hierarkkinen yleistetty lineaarinen sekamalli (hierarchical modelling of species communities, HMSC ).\n\nTeoreettisen tarkastelun painopiste on mallien sovitustavassa sek\u00e4 mallien tavassa ottaa huomioon lajien v\u00e4linen korrelaatiorakenne. Lis\u00e4ksi osoitamme, ett\u00e4 tulkinta mallien tavasta hy\u00f6dynt\u00e4\u00e4 lajikovariaatteja on yht\u00e4l\u00e4inen. Analyysiss\u00e4 tutkimme mallien parametriestimaatteja sek\u00e4 selitys- ja ennustevoimaa diskriminaation, tarkkuuden ja kalibraation avulla. HMSC-malli suoriutui tarkasteltujen suureiden osalta keskim\u00e4\u00e4rin GLLVM-mallia paremmin, erojen ollessa suurimpia eniten havaituilla lajeilla. GLLVM-malli kompensoi tuloksia huomattavasti pienemm\u00e4ll\u00e4 sovitusajalla.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Miia Hakanen (mihakane@jyu.fi) on 2022-02-21T07:50:41Z\nNo. of bitstreams: 0", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2022-02-21T07:50:41Z (GMT). No. of bitstreams: 0\n Previous issue date: 2022", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "53", "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": "en", "element": "rights", "qualifier": null, "schema": "dc"}, {"key": "dc.subject.other", "value": "hierarkkinen yleistetty lineaarinen sekamalli", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "lajiyhteis\u00f6n mallinnus", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "mallidiagnostiikka", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "MCMC-algoritmi", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "variaatioapproksimaatio", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "yleistetty lineaarinen latenttimuuttujamalli", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Yleistetyt lineaariset latenttimuuttujamallit \u2013 sovelluksena lajiyhteis\u00f6jen mallinnus", "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-202202211588", "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.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": "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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