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基于非负矩阵分解的隐含语义图像检索 被引量:7

The Latent Semantic Image Retrieval Based on Non-negative Matrix Factorization
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摘要 提出了一种基于非负矩阵分解(Non-negative Matrix Factorization,NMF)的隐含语义索引(Latent Semantic Indexing,LSI)模型用于图像检索.应用NMF训练算法构造了一个语义空间,将查询图像和原型图像都投影到该空间以获得语义特征,在此空间中进行相似性的度量并将距离最近的图像返回给用户.与已有两种检索模型的实验结果对比表明,所提出模型是有效的. A non-negative matrix factorization (NMF) based latent semantic indexing (LSI) model was introduced for image retrieval. Firstly, a semantic space is constructed using NMF-training algorithm. Then the hidden semantic features of the query image are extracted with NMF-testing algorithm. At last, ranking the query in this new semantic space and return some images to the user. The experiments show that the model provides better results than SVD-based LSI model and the one without LSI model.
出处 《上海交通大学学报》 EI CAS CSCD 北大核心 2006年第5期787-790,共4页 Journal of Shanghai Jiaotong University
基金 上海市科技攻关项目(03DZ19320)
关键词 图像检索 隐含语义索引 非负矩阵分解 奇异值分解 语义空间 image retrieval latent semantic indexing (LSI) non-negative matrix factorization (NMF) singular value decomposition (SVD) semantic space
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参考文献12

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二级参考文献5

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