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Home / Proceedings / Proceedings of the AAAI Conference on Artificial Intelligence

Accelerating Ranking in E-Commerce Search Engines through Contextual Factor Selection

February 1, 2023

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Authors

Anxiang Zeng

Nanyang Technological University


Han Yu

Nanyang Technological University


Qing Da

Alibaba Group


Yusen Zhan

Alibaba Group


Chunyan Miao

Nanyang Technological University


DOI:

10.1609/aaai.v34i08.7026


Abstract:

In large-scale search systems, the quality of the ranking results is continually improved with the introduction of more factors from complex procedures. Meanwhile, the increase in factors demands more computation resources and increases system response latency. It has been observed that, under some certain context a search instance may require only a small set of useful factors instead of all factors in order to return high quality results. Therefore, removing ineffective factors accordingly can significantly improve system efficiency. In this paper, we report our experience incorporating our Contextual Factor Selection (CFS) approach into the Taobao e-commerce platform to optimize the selection of factors based on the context of each search query in order to simultaneously achieve high quality search results while significantly reducing latency time. This problem is treated as a combinatorial optimization problem which can be tackled through a sequential decision-making procedure. The problem can be efficiently solved by CFS through a deep reinforcement learning method with reward shaping to address the problems of reward signal scarcity and wide reward signal distribution in real-world search engines. Through extensive off-line experiments based on data from the Taobao.com platform, CFS is shown to significantly outperform state-of-the-art approaches. Online deployment on Taobao.com demonstrated that CFS is able to reduce average search latency time by more than 40% compared to the previous approach with negligible reduction in search result quality. Under peak usage during the Single's Day Shopping Festival (November 11th) in 2017, CFS reduced peak load search latency time by 33% compared to the previous approach, helping Taobao.com achieve 40% higher revenue than the same period during 2016. CorrigendumThe spelling of coauthor Yusen Zan in the paper "Accelerating Ranking in E-Commerce Search Engines through Contextual Factor Selection" has been changed from Zan to Zhan. The original spelling was a typographical error.

Topics: AAAI

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HOW TO CITE:

Anxiang Zeng||Han Yu||Qing Da||Yusen Zhan||Chunyan Miao Accelerating Ranking in E-Commerce Search Engines through Contextual Factor Selection Proceedings of the AAAI Conference on Artificial Intelligence (2020) 13212-13219.

Anxiang Zeng||Han Yu||Qing Da||Yusen Zhan||Chunyan Miao Accelerating Ranking in E-Commerce Search Engines through Contextual Factor Selection AAAI 2020, 13212-13219.

Anxiang Zeng||Han Yu||Qing Da||Yusen Zhan||Chunyan Miao (2020). Accelerating Ranking in E-Commerce Search Engines through Contextual Factor Selection. Proceedings of the AAAI Conference on Artificial Intelligence, 13212-13219.

Anxiang Zeng||Han Yu||Qing Da||Yusen Zhan||Chunyan Miao. Accelerating Ranking in E-Commerce Search Engines through Contextual Factor Selection. Proceedings of the AAAI Conference on Artificial Intelligence 2020 p.13212-13219.

Anxiang Zeng||Han Yu||Qing Da||Yusen Zhan||Chunyan Miao. 2020. Accelerating Ranking in E-Commerce Search Engines through Contextual Factor Selection. "Proceedings of the AAAI Conference on Artificial Intelligence". 13212-13219.

Anxiang Zeng||Han Yu||Qing Da||Yusen Zhan||Chunyan Miao. (2020) "Accelerating Ranking in E-Commerce Search Engines through Contextual Factor Selection", Proceedings of the AAAI Conference on Artificial Intelligence, p.13212-13219

Anxiang Zeng||Han Yu||Qing Da||Yusen Zhan||Chunyan Miao, "Accelerating Ranking in E-Commerce Search Engines through Contextual Factor Selection", AAAI, p.13212-13219, 2020.

Anxiang Zeng||Han Yu||Qing Da||Yusen Zhan||Chunyan Miao. "Accelerating Ranking in E-Commerce Search Engines through Contextual Factor Selection". Proceedings of the AAAI Conference on Artificial Intelligence, 2020, p.13212-13219.

Anxiang Zeng||Han Yu||Qing Da||Yusen Zhan||Chunyan Miao. "Accelerating Ranking in E-Commerce Search Engines through Contextual Factor Selection". Proceedings of the AAAI Conference on Artificial Intelligence, (2020): 13212-13219.

Anxiang Zeng||Han Yu||Qing Da||Yusen Zhan||Chunyan Miao. Accelerating Ranking in E-Commerce Search Engines through Contextual Factor Selection. AAAI[Internet]. 2020[cited 2023]; 13212-13219.


ISSN: 2374-3468


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