2022
DOI: 10.1109/tnnls.2020.3027729
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Flexible Cross-Modal Hashing

Abstract: Hashing has been widely adopted for large-scale data retrieval in many domains, due to its low storage cost and high retrieval speed. Existing cross-modal hashing methods optimistically assume that the correspondence between training samples across modalities is readily available. This assumption is unrealistic in practical applications. In addition, existing methods generally require the same number of samples across different modalities, which restricts their flexibility.We propose a flexible cross-modal has… Show more

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Cited by 17 publications
(5 citation statements)
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“…To evaluate the performance of the proposed FMBSD method, we compare its experimental results with the results of several state-of-the-art methods of different types developed for realistic problems in practical scenario, containing WMCA (Lampert and Krömer, 2010), MMPDL (Liu et al, 2018), FlexCMH (Yu et al, 2020), PMH , GSPH (Mandal et al, 2019) and UCMH (Gao et al, 2020a), which are without pointwise correspondences (unpaired methods). The first two methods use latent subspace approaches across multimodal data, while the next methods are hashing-based ones.…”
Section: Comparison Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…To evaluate the performance of the proposed FMBSD method, we compare its experimental results with the results of several state-of-the-art methods of different types developed for realistic problems in practical scenario, containing WMCA (Lampert and Krömer, 2010), MMPDL (Liu et al, 2018), FlexCMH (Yu et al, 2020), PMH , GSPH (Mandal et al, 2019) and UCMH (Gao et al, 2020a), which are without pointwise correspondences (unpaired methods). The first two methods use latent subspace approaches across multimodal data, while the next methods are hashing-based ones.…”
Section: Comparison Methodsmentioning
confidence: 99%
“…These two types of correspondences, pointwise and batch correspondences, are very strong assumptions and cannot handle in many of realistic problems. In last recent years, a few works are exploited for the practical problems, such as UCMH (Gao et al, 2020a) which address the data with completely unpaired relationships by mapping data of different modalities to their respective semantic spaces, and FlexCMH (Yu et al, 2020) which introduces a clustering-based matching strategy to find the potential correspondences between samples across modalities.…”
Section: Multimodal Multiclass Classificationmentioning
confidence: 99%
“…For example, when we input key words to information retrieval systems, we expect the systems can efficiently find out related news/images/videos from database. Hence, many cross-modal hashing (CMH) methods have been proposed to deal with such tasks (Wang et al 2016;Jiang and Li 2017;Yu et al 2022a;Liu et al 2019a).…”
Section: Introductionmentioning
confidence: 99%
“…modal data. Unfortunately, most CMH methods solely mine the commonality (shared subspace) to learn hashing functions and assume balanced multi-modal data (Wang et al 2016;Jiang and Li 2017;Yu et al 2022a).…”
Section: Introductionmentioning
confidence: 99%
“…This scenario is referred to as Unpaired Cross-Modal Retrieval (UCMR). Recently, some works have been proposed to address Semi-paired Cross-Modal Retrieval [26], [27], [10], [28], where only partial data correspondence is given. However, semi-paired hashing…”
mentioning
confidence: 99%