Shi, Z; Zhang, Q; Lipani, A; (2022) StepGame: A New Benchmark for Robust Multi-Hop Spatial Reasoning in Texts. In: Proceedings of 36th AAAI conference on Artificial intelligence. (pp. pp. 11321-11329). AAAI (Association for the Advancement of Artificial Intelligence): Palo Alto, CA, USA.

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Abstract

Inferring spatial relations in natural language is a crucial abil- ity an intelligent system should possess. The bAbI dataset tries to capture tasks relevant to this domain (task 17 and 19). However, these tasks have several limitations. Most impor- tantly, they are limited to fixed expressions, they are limited in the number of reasoning steps required to solve them, and they fail to test the robustness of models to input that contains irrelevant or redundant information. In this paper, we present a new Question-Answering dataset called StepGame for ro- bust multi-hop spatial reasoning in texts. Our experiments demonstrate that state-of-the-art models on the bAbI dataset struggle on the StepGame dataset. Moreover, we propose a Tensor-Product based Memory-Augmented Neural Network (TP-MANN) specialized for spatial reasoning tasks. Experi- mental results on both datasets show that our model outper- forms all the baselines with superior generalization and ro- bustness performance.

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