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The paper introduces AdaptiveEmbed, a framework that learns sample‑adaptive multi‑vector representations for multimodal retrieval. It proposes the SAMVR setting, where each sample receives a content‑adaptive embedding set whose size is determined by its retrieval utility. The method uses Multi‑Group Contrastive Learning with set‑to‑set similarity and Utility Policy Optimization to allocate representation capacity, achieving better performance across image, text, video, and audio benchmarks.
arXiv:2608. 12987v1 Announce Type: cross Abstract: Generative information retrieval (GIR) has emerged as a compelling alternative to the conventional index-retrieve-then-rank retrieval pipeline by training a generator to produce the identifiers of relevant items directly.
arXiv:2609.37225v1 Announce Type: cross Abstract: Multimodal large language models (MLLMs) have shown strong potential for universal multimodal representation learning. However, existing methods eith...
arXiv:2506. 08774v2 Announce Type: replace-cross Abstract: Different machine learning models can represent the same underlying concept in different ways.
arXiv:2609.15296v1 Announce Type: new Abstract: Universal multimodal embedding (UME) learns unified representations across modalities, enabling a single model to support diverse retrieval tasks. Rece...
arXiv:2609.05518v1 Announce Type: cross Abstract: Despite the strong capabilities of multimodal large language models (MLLMs), their parametric knowledge remains incomplete and difficult to update, m...