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Deep Pairwise Learning To Rank For Search Autocomplete

08/11/2021

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by Kai Yuan, et al.

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Autocomplete (a.k.a "Query Auto-Completion", "AC") suggests full queries based on a prefix typed by customer. Autocomplete has been a core feature of commercial search engine. In this paper, we propose a novel context-aware neural network based pairwise ranker (DeepPLTR) to improve AC ranking, DeepPLTR leverages contextual and behavioral features to rank queries by minimizing a pairwise loss, based on a fully-connected neural network structure. Compared to LambdaMART ranker, DeepPLTR shows +3.90 offline evaluation, and yielded +0.06 lift in an Amazon's online A/B experiment.

Kai Yuan
15 publications
Da Kuang
3 publications

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