摘要
提出了一个基于内容及相似搜索的对等音乐文件共享系统。该系统建立在结构化的应用层覆盖网络之上,保证了系统的可扩展性和避免了网络消息的洪泛;利用了集合对等点来完成音乐文件的元数据的注册和搜索;把音乐文件的属性名—属性值对(attribute-value pairs,AV-Pairs)通过MFD(music file description)来表示,使系统既可以支持精确的检索,也可以完成复杂的语义相似性搜索,特别是基于内容的搜索和下载;描述了对等实体上的软件功能模块,构建了一个实际的对等音乐文件共享系统。测试结果表明,随着大量搜索请求的到达,系统保持了比较高的吞吐量,同时具有比较高的成功搜索率。
This paper presented and described a P2P audio file sharing system which provided the content and similarly searching.It used a distributed hash table（DHT）based overlay network to ensure the scalability and avoid network-wide message flooding.By using rendezvous points,achieved the music metadata registration and query.It described each file in the system by a music file description（MFD）which essentially was a set of attribute-value（AV） pairs and thus flexible searched semantics based on attribute-value pairs and automatic extraction of musical features and content-based similarity retrieval could also be accomplished.Also discussed the software architecture on a peer node subsequently.The analysis results show that the approach can maintain a high throughput and high query success rate.
出处
《计算机应用研究》
CSCD
北大核心
2012年第4期1509-1511,共3页
Application Research of Computers
关键词
对等网络
文件共享
内容搜索
相似搜索
分布式哈希表
P2P networks
file sharing system
content search
similarly search
distributed hash table
