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arXiv · 1809.10736

Controllable Neural Story Plot Generation via Reward Shaping

Pradyumna Tambwekar·Murtaza Dhuliawala·Lara J. Martin·Animesh Mehta·Brent Harrison·Mark O. Riedl
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Abstract

Language-modeling--based approaches to story plot generation attempt to construct a plot by sampling from a language model (LM) to predict the next character, word, or sentence to add to the story. LM techniques lack the ability to receive guidance from the user to achieve a specific goal, resulting in stories that don't have a clear sense of progression and lack coherence. We present a reward-shaping technique that analyzes a story corpus and produces intermediate rewards that are backpropagated into a pre-trained LM in order to guide the model towards a given goal. Automated evaluations show our technique can create a model that generates story plots which consistently achieve a specified goal. Human-subject studies show that the generated stories have more plausible event ordering than baseline plot generation techniques.

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Pradyumna Tambwekar, Murtaza Dhuliawala, Lara J. Martin, Animesh Mehta, Brent Harrison, Mark O. Riedl. 2018-09-27. Controllable Neural Story Plot Generation via Reward Shaping. https://doi.org/10.24963/ijcai.2019/829

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