Šio darbo tikslas – pasiulyti nauja algoritma muzikos kuriniu indeksacijai ir paieškai. Tikslui pasiekti formuluojami uždaviniai ir reikalavimai naujai pasiulytam algoritmui. Taip pat darbe išnagrinejami šiuo metu naudojami algoritmai muzikos indeksacijai ir paieškai. Kitoje darbo dalyje pateikiamas algoritmas, kuriam naudojami Teiloro koeficientai padeda išskirti muzikos požymius. Išskirtu muzikos požymiu palyginimui pateikiamos dvi algoritmo versijos: greitoji versija, kuri naudojasi hash raktais, ir letoji versija, naudojanti daugiau duomenu muzikos palyginimui. Rasti algoritmai testuojami eksperimentineje darbo dalyje – tikrinamas algoritmu atsparumas triukšmui, ju priklausomybe nuo užklausos trukmes. Taip pat algoritmu rezultatai lyginami ir su kitais algoritmais. Gauti rezultatai parodo, kad algoritmai geba atpažinti muzikos kurini esant trisdešimt penkiu decibelu triukšmui tik iš trisdešimties sekundžiu irašo. / The goal of this work is to propose a new algorithm for music indexing and searching. To achieve this, objectives and requirements were formulated for the newly proposed algorithm. State of the art algorithms for music indexing and searching were also examined. Following that, an algorithm that uses Taylor coefficients to distinguish music features was suggested. To compare music features, two algorithm versions were suggested: a quick version th at uses hash keys, and a slow version, using more data to compare the music. The suggested algorithms are tested in the experimental part. Noise immunity and their dependence on the length of the query are checked. The results are compared with those of th e state of the art algorithms. They show that the algorithm is able to recognize a music that has thirty - five decibel noise and only from a thirty seconds query.
| Identifer | oai:union.ndltd.org:LABT_ETD/oai:elaba.lt:LT-eLABa-0001:E.02~2012~D_20140704_174513-76755 |
| Date | 04 July 2014 |
| Creators | Žalpys, Viktoras |
| Contributors | Bastys, Algirdas, Vilnius University |
| Publisher | Lithuanian Academic Libraries Network (LABT), Vilnius University |
| Source Sets | Lithuanian ETD submission system |
| Language | Lithuanian |
| Detected Language | Unknown |
| Type | Master thesis |
| Format | application/pdf |
| Source | http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2012~D_20140704_174513-76755 |
| Rights | Unrestricted |
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