Natural Language Generation

I have worked a lot on text categorization in the past few months, and I started to get bored. I started to become more interested in generative models, and generating texts.

Generative models are not new. Topic models such as LDA, or STM are generative models. However, I have been using the topic vectors or other topic models such as LDA2Vec as the feature of another supervised algorithm. And it is basically the design of my shorttext package.

I attended a meetup event held by DC Data Science and Data Education DC. The speaker, Daewoo Chong, is a senior Data Scientist at Booz Allen Hamilton. He talked about chatbot, building on RNN models on characters. His talk was not exactly about generative models, but it is indeed about generating texts. With the sophistication of GANs (see my entry on GAN and WGAN), it will surely be my next focus of my toy projects.

Ran Chen wrote a blog on his company homepage about natural language generation in his system, Trulia.

And there are a few GAN applications on text:

  • “Generating Text via Adversarial Learning” [PDF]
  • Lantao Yu, Weinan Zhang, Jun Wang, Yong Yu, “SeqGAN: Sequence Generative Adversarial Nets with Policy Gradient,” arXiv:1609.05473 [arXiv]
  • Jiwei Li, Will Monroe, Tianlin Shi, Sébastien Jean, Alan Ritter, Dan Jurafsky, “Adversarial Learning for Neural Dialogue Generation,” arXiv:1701.06547 [arXiv]
  • Matt J. Kusner, José Miguel Hernández-Lobato, “GANs for sequence of discrete elements with the Gumbel-softmax distribution,” arXiv:1611.04051 [arXiv]
  • David Pfau, Oriol Vinyals, “Connecting generative adversarial network and actor-critic methods,” arXiv:1610.01945 [arXiv]
  • Xuerong Xiao, “Text Generation usingGenerative Adversarial Training” [PDF]
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