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Universal Weighting Metric Learning for Cross-Modal Retrieval.

Jiwei Wei, Yang Yang, Xing Xu

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    This study introduces a universal weighting metric learning framework for cross-modal retrieval. The novel polynomial loss functions improve the ability to mine informative pairs, significantly boosting retrieval performance across various datasets.

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    Area of Science:

    • Computer Science
    • Artificial Intelligence
    • Machine Learning

    Background:

    • Cross-modal retrieval, matching data from different sources (e.g., images and text), is a growing research area.
    • Effective metric learning is crucial for cross-modal retrieval, but existing methods are underexplored for this task.

    Purpose of the Study:

    • To develop a universal weighting metric learning framework for cross-modal retrieval.
    • To introduce novel polynomial loss functions that enhance the mining and weighting of informative data pairs.

    Main Methods:

    • A universal weighting metric learning framework was developed to sample informative pairs and assign weights based on similarity scores.
    • Two polynomial loss functions were introduced: self-similarity polynomial loss and relative-similarity polynomial loss.
    • These losses associate weights with similarity scores using polynomial functions.

    Main Results:

    • The proposed framework and polynomial losses were applied to existing cross-modal retrieval methods.
    • Experiments demonstrated significant performance improvements on image-text and video-text retrieval datasets.
    • The method showed a noticeable boost in retrieval accuracy across multiple benchmark datasets.

    Conclusions:

    • The developed universal weighting metric learning framework effectively enhances cross-modal retrieval.
    • The novel self-similarity and relative-similarity polynomial losses offer a flexible and effective approach to improve retrieval performance.
    • The proposed methods provide a valuable contribution to the field of cross-modal retrieval.