Learning a Reversible Embedding Mapping using Bi-Directional Manifold Alignment

Author/Creator ORCID

Date

2021-08-01

Department

Program

Citation of Original Publication

Ganesan, Ashwinkumar; Ferraro, Francis; Oates, Tim; Learning a Reversible Embedding Mapping using Bi-Directional Manifold Alignment; Findings of the Association for Computational Linguistics: ACL-IJCNLP 2021, pages 3132–3139 August 1–6, 2021; https://aclanthology.org/2021.findings-acl.276.pdf

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Abstract

We propose a Bi-Directional Manifold Alignment (BDMA) that learns a non-linear mapping between two manifolds by explicitly training it to be bijective. We demonstrate BDMA by training a model for a pair of languages rather than individual, directed source and target combinations, reducing the number of models by 50%. We show that models trained with BDMA in the “forward” (source to target) direction can successfully map words in the “reverse” (target to source) direction, yielding equivalent (or better) performance to standard unidirectional translation models where the source and target language is flipped. We also show how BDMA reduces the overall size of the model.