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Efficient Natural Language Response Suggestion for Smart Reply

arXiv (Cornell University)Published 1 May 2017Open access
Matthew Henderson, Rami Al‐Rfou, Brian Strope, Yun-Hsuan Sung, Lukács László, Ruiqi Guo
Citations218
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TL;DR

A computationally efficient machine-learned method for natural language response suggestion using feed-forward neural networks using n-gram embedding features that achieves the same quality at a small fraction of the computational requirements and latency.

Abstract

This paper presents a computationally efficient machine-learned method for natural language response suggestion. Feed-forward neural networks using n-gram embedding features encode messages into vectors which are optimized to give message-response pairs a high dot-product value. An optimized search finds response suggestions. The method is evaluated in a large-scale commercial e-mail application, Inbox by Gmail. Compared to a sequence-to-sequence approach, the new system achieves the same quality at a small fraction of the computational requirements and latency.

Keywords

Computer Science