这种新型的人机接口，对于在互联网上实现基于内容的音乐检索有着巨大的现实意义。
Being a new style of human machine interface, the query by humming technology has important and practical meanings to content based music retrieval online.
该领域主要包括音乐的自动分类、分割、基于内容的音乐检索、音乐的智能创作等方面内容。
The domain primarily consists of musical classification, division, based on the content of the musical searches, musical intelligence and so on.
7标准提供了工具，以互操作和可扩展的方式来模型化这些数据。因此，可以采用MPEG - 7作为基于内容的音乐信息检索系统的框架。
The MPEG-7 standard provides tools to model these data in interoperable and extensible way, and therefore can be used as framework to build content based music information retrieval systems.
基于内容的音频音乐检索一直是音乐信息组织研究的难点。
Content-based audio music retrieval is always a difficult part of the research of musical information organization.
本文针对上述音乐索引和检索技术中出现的新特点，提出了采用基于内容的音乐情感分类检索技术。
For the above-mentioned new characters of music indexing and searching technologies, a music mood classification searching technology based on content is put forward in this paper.
本文针对上述音乐索引和检索技术中出现的新特点，提出了采用基于内容的音乐情感分类检索技术。
For the above-mentioned new characters of music indexing and searching technologies, a music mood classification searching technology based on content is put forward in this paper.
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