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AdapterFusion: Non-Destructive Task Composition for Transfer Learning

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arxiv 2005.00247 v3 pith:MNNWJO3Y submitted 2020-05-01 cs.CL

AdapterFusion: Non-Destructive Task Composition for Transfer Learning

classification cs.CL
keywords knowledgelearningtasksadapterfusionadapterscompositionmultipleeffectively
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Sequential fine-tuning and multi-task learning are methods aiming to incorporate knowledge from multiple tasks; however, they suffer from catastrophic forgetting and difficulties in dataset balancing. To address these shortcomings, we propose AdapterFusion, a new two stage learning algorithm that leverages knowledge from multiple tasks. First, in the knowledge extraction stage we learn task specific parameters called adapters, that encapsulate the task-specific information. We then combine the adapters in a separate knowledge composition step. We show that by separating the two stages, i.e., knowledge extraction and knowledge composition, the classifier can effectively exploit the representations learned from multiple tasks in a non-destructive manner. We empirically evaluate AdapterFusion on 16 diverse NLU tasks, and find that it effectively combines various types of knowledge at different layers of the model. We show that our approach outperforms traditional strategies such as full fine-tuning as well as multi-task learning. Our code and adapters are available at AdapterHub.ml.

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Forward citations

Cited by 19 Pith papers

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  4. Substrate Asymmetry in User-Side Memory: A Diagnostic Framework

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