access icon free Zero-shot multi-label learning via label factorisation

This study considers the zero-shot learning problem under the multi-label setting where each test sample is associated with multiple labels that are unseen in training data. The authors propose a novel learning framework based on label factorisation for this problem. Specifically, the authors’ framework takes three key issues into consideration and addresses them in a unified way. The first is knowledge transfer that utilises information from seen classes to build recognition models for unseen classes. The second is label correlation which means that labels which have different semantics may co-occur frequently. This is an important issue in multi-label learning. The authors propose to learn a shared latent space by label factorisation and use the label semantics as the decoding function, which can address both issues. The third is the predictability which requires the learned latent space to be strongly related to the visual features. It is guaranteed by incorporating a regression model into the learning framework. The authors derive two specific formulations from the general framework and propose the corresponding learning algorithms. The authors conducted extensive experiments on three multi-label data sets. The results demonstrated the effectiveness.

Inspec keywords: regression analysis; learning (artificial intelligence)

Other keywords: zero-shot multilabel learning; zero-shot learning problem; learned latent space; multilabel setting; authors; multilabel data sets; multiple labels; novel learning framework; label semantics; corresponding learning algorithms; label factorisation; label correlation

Subjects: Knowledge engineering techniques; Other topics in statistics; Computer vision and image processing techniques

http://iet.metastore.ingenta.com/content/journals/10.1049/iet-cvi.2018.5131
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