This paper presents an end-to-end neural network model, named Neural
Generative Question Answering (GENQA), that can generate answers to simple
factoid questions, based on the facts in a knowledge-base. More specifically,
the model is built on the encoder-decoder framework for sequence-to-sequence
learning, while equipped with the ability to enquire the knowledge-base, and is
trained on a corpus of question-answer pairs, with their associated triples in
the knowledge-base. Empirical study shows the proposed model can effectively
deal with the variations of questions and answers, and generate right and
natural answers by referring to the facts in the knowledge-base. The experiment
on question answering demonstrates that the proposed model can outperform an
embedding-based QA model as well as a neural dialogue model trained on the same
data.

本文提出了一个名为 Neural Generative Question Answering（GENQA）的端到端神经网络模型，可以根据知识库中的事实生成简单问答问题的答案。通过对问题答案对的语料库进行训练，该模型可有效处理问题和答案的变化，并通过参考知识库中的事实生成正确自然的答案，且在问题回答方面的实验证明该模型优于基于嵌入式的 QA 模型和在相同数据上训练的神经对话模型。