arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2102.04674cs.CV
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阿里巴巴视觉搜索

Visual Search at Alibaba

Alibaba Group(阿里巴巴集团)

Yanhao Zhang, Pan Pan, Yun Zheng, Kang Zhao, Yingya Zhang, Xiaofeng Ren, Rong Jin

摘要:

本文介绍了阿里巴巴大规模视觉搜索的算法和系统架构。在阿里巴巴电子商务环境下,讨论了以下挑战:(a)如何处理异构图像数据,弥合用户查询的实时图像与在线图像之间的差距。(b)如何处理大规模索引海量更新数据。(c)如何训练深度模型以实现有效的特征表示,而无需大量的人工注释。(d)如何通过考虑内容的质量来提高用户参与度。我们利用阿里巴巴的大量图像收集和最先进的深度学习技术来进行大规模的视觉搜索。我们提出了解决方案和实现细节,以克服这些问题,并分享我们的经验教训,从建设这样一个大规模的商业视觉搜索引擎。具体而言,基于模型和搜索的融合方法,引入有效地预测类别。此外,我们提出了一个深度CNN模型,通过挖掘用户点击行为进行联合检测和特征学习。二进制索引引擎旨在扩大索引而不影响查全率和精度。最后,我们将所有阶段应用到一个端到端的系统架构中,该架构可以同时实现适应实时拍摄图像的高效和可扩展的性能。大量的实验证明了我们系统中每个模块的先进性。我们希望阿里巴巴的视觉搜索能更广泛地融入到今天的商业应用中。

英文摘要:

This paper introduces the large scale visual search algorithm and system infrastructure at Alibaba. The following challenges are discussed under the E-commercial circumstance at Alibaba (a) how to handle heterogeneous image data and bridge the gap between real-shot images from user query and the online images. (b) how to deal with large scale indexing for massive updating data. (c) how to train deep models for effective feature representation without huge human annotations. (d) how to improve the user engagement by considering the quality of the content. We take advantage of large image collection of Alibaba and state-of-the-art deep learning techniques to perform visual search at scale. We present solutions and implementation details to overcome those problems and also share our learnings from building such a large scale commercial visual search engine. Specifically, model and search-based fusion approach is introduced to effectively predict categories. Also, we propose a deep CNN model for joint detection and feature learning by mining user click behavior. The binary index engine is designed to scale up indexing without compromising recall and precision. Finally, we apply all the stages into an end-to-end system architecture, which can simultaneously achieve highly efficient and scalable performance adapting to real-shot images. Extensive experiments demonstrate the advancement of each module in our system. We hope visual search at Alibaba becomes more widely incorporated into today's commercial applications.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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