arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1905.04450cs.LGstat.ML
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基于排序的深度跨模态哈希算法

Ranking-based Deep Cross-modal Hashing

Southwest University(西南大学);China University of Geosciences(中国地质大学);George Mason University(乔治梅森大学);University of Electronic Science and Technology of China(电子科技大学);Beijing University of Civil Engineering and Architecture(北京建筑大学)

Xuanwu Liu, Guoxian Yu, Carlotta Domeniconi, Jun Wang, Yazhou Ren, Maozu Guo

摘要:

跨模式哈希算法以其存储开销小、查询速度快等优点在多模式数据检索中受到越来越多的关注。然而,大多数现有的散列方法是基于手工制作或原始级别的对象的功能,这可能不是最佳的编码过程兼容。此外,这些散列方法主要被设计用于处理简单的成对相似性。与多个标签相关联的实例的复杂多级排序语义结构尚未得到很好的探索。在本文中,我们提出了一种基于排名的深度跨模态哈希方法(RDCMH)。RDCMH首先使用数据的特征和标签信息来获得半监督语义排序列表。接下来,为了扩展手工特征的语义表示能力,RDCMH将语义排名信息集成到深度跨模态哈希中,并联合优化深度特征表示和哈希函数的兼容参数。在真实多模态数据集上的实验表明,RDCMH算法在跨模态检索应用中的性能优于其他同类算法。

英文摘要:

Cross-modal hashing has been receiving increasing interests for its low storage cost and fast query speed in multi-modal data retrievals. However, most existing hashing methods are based on hand-crafted or raw level features of objects, which may not be optimally compatible with the coding process. Besides, these hashing methods are mainly designed to handle simple pairwise similarity. The complex multilevel ranking semantic structure of instances associated with multiple labels has not been well explored yet. In this paper, we propose a ranking-based deep cross-modal hashing approach (RDCMH). RDCMH firstly uses the feature and label information of data to derive a semi-supervised semantic ranking list. Next, to expand the semantic representation power of hand-crafted features, RDCMH integrates the semantic ranking information into deep cross-modal hashing and jointly optimizes the compatible parameters of deep feature representations and of hashing functions. Experiments on real multi-modal datasets show that RDCMH outperforms other competitive baselines and achieves the state-of-the-art performance in cross-modal retrieval applications.

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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