ReInform: Selecting paths with reinforcement learning for contextualized link prediction

ReInform: Selecting paths with reinforcement learning for contextualized link prediction

Abstract

We propose to use reinforcement learning to inform transformer-based contextualized link prediction models by providing paths that are most useful for predicting the correct answer. This is in contrast to previous approaches, that either used reinforcement learning (RL) to directly search for the answer, or based their prediction on limited or randomly selected context. Our experiments on WN18RR and FB15k-237 show that contextualized link prediction models consistently outperform RL-based answer search, and that additional improvements (of up to 13.5% MRR) can be gained by combining RL with a link prediction model. The PyTorch implemen- tation of the RL agent is available at https: //github.com/marina-sp/reinform.

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Authors
  • Speranskaya, Marina
  • Methias, Sameh
  • Roth, Benjamin
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Shortfacts
Category
Technical Report (Working Paper)
Divisions
Data Mining and Machine Learning
Subjects
Kuenstliche Intelligenz
Publisher
arXiv
Date
19 November 2022
Official URL
https://arxiv.org/abs/2211.10688
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