Loading...
Please wait, while we are loading the content...
Similar Documents
Local summarization and multi-level LSH for retrieving multi-variant audio tracks
| Content Provider | CiteSeerX |
|---|---|
| Author | Cedric, Vertigo Oria, Vincent Crucianu, Michel Yu, Yi Chen, Lei |
| Description | in Proc. ACM MM’09, 2009 |
| Abstract | In this paper we study the problem of detecting and group-ing multi-variant audio tracks in large audio datasets. To address this issue, a fast and reliable retrieval method is necessary. But reliability requires elaborate representations of audio content, which challenges fast retrieval by similar-ity from a large audio database. To find a better trade-off between retrieval quality and efficiency, we put forward an approach relying on local summarization and multi-level Locality-Sensitive Hashing (LSH). More precisely, each au-dio track is divided into multiple Continuously Correlated Periods (CCP) of variable length according to spectral sim-ilarity. The description for each CCP is calculated based on its Weighted Mean Chroma (WMC). A track is thus rep-resented as a sequence of WMCs. Then, an adapted two-level LSH is employed for efficiently delineating a narrow relevant search region.The “coarse ” hashing level restricts search to items having a non-negligible similarity to the query. The subsequent, “refined ” level only returns items showing a much higher similarity. Experimental evaluations performed on a real multi-variant audio dataset confirm that our approach supports fast and reliable retrieval of audio track variants. |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Reliable Retrieval Method Group-ing Multi-variant Audio Track Variable Length Audio Content Coarse Hashing Level Multi-variant Audio Track Non-negligible Similarity Experimental Evaluation Spectral Sim-ilarity Real Multi-variant Audio Dataset Confirm Multi-level Locality-sensitive Hashing Large Audio Datasets Multi-level Lsh Narrow Relevant Search Region Reliable Retrieval Retrieval Quality Au-dio Track Local Summarization Large Audio Database Multiple Continuously Correlated Period Elaborate Representation Adapted Two-level Lsh Weighted Mean Chroma Audio Track Variant |
| Content Type | Text |
| Resource Type | Article |
