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[{"key": "dc.contributor.author", "value": "Juvonen, Antti", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2012-09-04T12:36:28Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2012-09-04T12:36:28Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2011", "language": null, "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.other", "value": "oai:jykdok.linneanet.fi:1225177", "language": null, "element": "identifier", "qualifier": "other", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/38455", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Nykyajan web-palvelut ovat dynaamisia ja avoimia. T\u00e4m\u00e4 antaa suurelle joukolle k\u00e4ytt\u00e4ji\u00e4 mahdollisuuden p\u00e4\u00e4st\u00e4 k\u00e4siksi palveluun ja sen sis\u00e4lt\u00e4m\u00e4\u00e4n tietoon. Samalla avautuu uusia mahdollisuuksia toteuttaa hy\u00f6kk\u00e4ys. Tietoturvan pit\u00e4minen riitt\u00e4v\u00e4ll\u00e4 tasolla on kilpailua aikaa vastaan. Poikkeavuuksien havaitsemisj\u00e4rjestelmill\u00e4 pystyt\u00e4\u00e4n kuitenkin havaitsemaan ennest\u00e4\u00e4n tuntemattomat hy\u00f6kk\u00e4ykset ja muu ep\u00e4normaali toiminta ja siten pit\u00e4m\u00e4\u00e4n tietoturva hyv\u00e4ll\u00e4 tasolla. Tutkimuksessa sovellettiin n-grammianalyysia, tukivektorikonetta ja diffuusiokarttoja esik\u00e4sitellyn verkkodatan analysointiin. Kaikilla menetelmill\u00e4 saatiin lupaavia tuloksia, mutta reaaliaikainen j\u00e4rjestelm\u00e4 vaatii viel\u00e4 jatkokehityst\u00e4.", "language": null, "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Antti Juvonen (ankianju) on 2012-09-04 12:36:28.136473. Form: Pro gradu -lomake (1 tekij\u00e4) (https://kirjasto.jyu.fi/julkaisut/julkaisulomakkeet/pro-gradu-lomake-1-tekijae). JyX data:", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by jyx lomake-julkaisija (jyx-julkaisija@noreply.fi) on 2012-09-04T12:36:28Z\nNo. of bitstreams: 2\nURN:NBN:fi:jyu-201209042309.pdf: 1269157 bytes, checksum: 4941ba621f5fe3441f4ce3442fa1e1d2 (MD5)\nlicense.html: 4987 bytes, checksum: 83f9ba98a2fc4f1a4dd64bf237edc816 (MD5)", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2012-09-04T12:36:28Z (GMT). No. of bitstreams: 2\nURN:NBN:fi:jyu-201209042309.pdf: 1269157 bytes, checksum: 4941ba621f5fe3441f4ce3442fa1e1d2 (MD5)\nlicense.html: 4987 bytes, checksum: 83f9ba98a2fc4f1a4dd64bf237edc816 (MD5)\n Previous issue date: 2011", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "79 sivua", "language": null, "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.format.mimetype", "value": "application/pdf", "language": null, "element": "format", "qualifier": "mimetype", "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": "poikkeavuus", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "n-grammi", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "tukivektorikone", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "diffuusiokartta", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "koneoppiminen", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "tietoturva", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "hy\u00f6kk\u00e4\u00e4j\u00e4n havaitseminen", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Poikkeavuuksien havaitseminen WWW-palvelinlokidatasta", "language": null, "element": "title", "qualifier": null, "schema": "dc"}, {"key": "dc.type", "value": "master thesis", "language": null, "element": 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