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arXiv 1209.2274cs.IR
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基于PCA的相关反馈在文档图像检索中的应用

PCA-Based Relevance Feedback in Document Image Retrieval

Reza Tavoli, Fariborz Mahmoudi

摘要:

相关反馈作为提高信息检索系统性能的一种有效方法,近年来得到了广泛的研究。相关反馈是指一种有助于提高检索性能的交互过程。在本文中,我们提出了使用相关反馈,以提高文档图像检索系统(DIRS)的性能。本文比较了各种积极反馈和消极反馈的策略。此外,特征子空间提取和更新过程中使用主成分分析(PCA)技术和用户的反馈。也就是说,除了降低特征空间的维数之外,在反馈过程中获得每种类型的特征的适当子空间,以进一步提高检索精度。实验结果表明,在训练中使用相关反馈比普通训练获得了更好的性能。

英文摘要:

Research has been devoted in the past few years to relevance feedback as an effective solution to improve performance of information retrieval systems. Relevance feedback refers to an interactive process that helps to improve the retrieval performance. In this paper we propose the use of relevance feedback to improve document image retrieval System (DIRS) performance. This paper compares a variety of strategies for positive and negative feedback. In addition, feature subspace is extracted and updated during the feedback process using a Principal Component Analysis (PCA) technique and based on user's feedback. That is, in addition to reducing the dimensionality of feature spaces, a proper subspace for each type of features is obtained in the feedback process to further improve the retrieval accuracy. Experiments show that using relevance Feedback in DIR achieves better performance than common DIR.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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