Video-Text Retrieval (VTR) is a crucial multi-modal task in an era of massive video-text data on the Internet. A plethora of work characterized by using a two-stream Vision-Language model architecture that learns a joint representation of video-text pairs has become a prominent approach for the VTR task. However, these models operate under the assumption of bijective video-text correspondences and neglect a more practical scenario where video content usually encompasses multiple events, while texts like user queries or webpage metadata tend to be specific and correspond to single events. This establishes a gap between the previous training objective and real-world applications, leading to the potential performance degradation of earlier models during inference. In this study, we introduce the Multi-event Video-Text Retrieval (MeVTR) task, addressing scenarios in which each video contains multiple different events, as a niche scenario of the conventional Video-Text Retrieval Task. We present a simple model, Me-Retriever, which incorporates key event video representation and a new MeVTR loss for the MeVTR task. Comprehensive experiments show that this straightforward framework outperforms other models in the Video-to-Text and Text-to-Video tasks, effectively establishing a robust baseline for the MeVTR task. We believe this work serves as a strong foundation for future studies. Code is available at https://github.com/gengyuanmax/MeVTR.

翻译：视频-文本检索（VTR）是互联网上海量视频-文本数据时代的关键多模态任务。大量研究采用双流视觉-语言模型架构，通过学习视频-文本对的联合表示，已成为VTR任务的主流方法。然而，这些模型基于视频与文本一一对应的假设，忽略了更实际的场景：视频内容通常包含多个事件，而用户查询或网页元数据等文本往往具有特异性且对应单一事件。这造成了先前训练目标与实际应用之间的差距，导致早期模型在推理时性能可能下降。在本研究中，我们提出了多事件视频-文本检索（MeVTR）任务，旨在处理每个视频包含多个不同事件的场景，作为传统视频-文本检索任务的一个细分场景。我们提出了一个简单模型Me-Retriever，该模型融入了关键事件视频表示和用于MeVTR任务的新型MeVTR损失函数。综合实验表明，这一简洁框架在视频到文本和文本到视频任务中优于其他模型，有效建立了MeVTR任务的稳健基线。我们相信这项工作为未来研究奠定了坚实基础。代码已开源：https://github.com/gengyuanmax/MeVTR。