Generating Sentences from Disentangled Syntactic and Semantic Spaces
Table 3: Performance of paraphrase generation. The larger↑ (or lower↓), the better. Some results are quoted from †MH and ‡vae_svg_eq.
['Model', 'BLEU-ref↑', 'BLEU-ori↓']
We see that DSS-VAE outperforms the CGMH and the original VAE in BLEU-ref. Especially, DSS-VAE achieves a closer BLEU-ref compared with supervised paraphrase methods Gupta et al. It is seen that the line of DSS-VAE is located to the upper-left of the competing methods. In other words, the plain VAE and CGMH are “inadmissible,” meaning that DSS-VAE simultaneously outperforms them in both BLEU-ori and BLEU-ref, indicating that DSS-VAE outperforms previous state-of-the-art methods in unsupervised paraphrase generation.