Generating Long and Informative Reviews with Aspect-Aware
Coarse-to-Fine Decoding
Abstract
Generating long and informative review text
is a challenging natural language generation
task. Previous work focuses on word-level
generation, neglecting the importance of topical and syntactic characteristics from natural
languages. In this paper, we propose a novel
review generation model by characterizing an
elaborately designed aspect-aware coarse-to-
fine generation process. First, we model the
aspect transitions to capture the overall content
flow. Then, to generate a sentence, an aspectaware sketch will be predicted using an aspectaware decoder. Finally, another decoder fills in
the semantic slots by generating corresponding words. Our approach is able to jointly
utilize aspect semantics, syntactic sketch, and
context information. Extensive experiments
results have demonstrated the effectiveness of
the proposed model.