Multi-turn conversation understanding is a major challenge for building
intelligent dialogue systems. This work focuses on retrieval-based response
matching for multi-turn conversation whose related work simply concatenates the
conversation utterances, ignoring the interactions among previous utterances
for context modeling. In this paper, we formulate previous utterances into
context using a proposed deep utterance aggregation model to form a
fine-grained context representation. In detail, a self-matching attention is
first introduced to route the vital information in each utterance. Then the
model matches a response with each refined utterance and the final matching
score is obtained after attentive turns aggregation. Experimental results show
our model outperforms the state-of-the-art methods on three multi-turn
conversation benchmarks, including a newly introduced e-commerce dialogue
corpus.

本文研究基于信息检索的跨度多轮对话系统以往语句的上下文建模的问题，提出将以前的话语通过一种深度聚合模型聚合成细粒度的上下文进行表示。实验结果表明，与现有的最先进的方法相比，该模型在三个多回合对话基准测试中表现更优秀。