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Robust task-specific adaption of models for drug-target interaction prediction
Emma Svensson · Pieter-Jan Hoedt · Sepp Hochreiter · Günter Klambauer
Event URL: https://openreview.net/forum?id=dIX34JWnIAL »

HyperNetworks have been established as an effective technique to achieve fast adaptation of parameters for neural networks. Recently, HyperNetworks conditioned on descriptors of tasks have improved multi-task generalization in various domains, such as personalized federated learning and neural architecture search. Especially powerful results were achieved in few- and zero-shot settings, attributed to the increased information sharing by the HyperNetwork. With the rise of new diseases fast discovery of drugs is needed which requires proteo-chemometric models that are able to generalize drug-target interaction predictions in low-data scenarios. State-of-the-art methods apply a few fully-connected layers to concatenated learned embeddings of the protein target and drug compound. In this work, we develop a task-conditioned HyperNetwork approach for the problem of predicting drug-target interactions in drug discovery. We show that when model parameters are predicted for the fully-connected layers processing the drug compound embedding, based on the protein target embedding, predictive performance can be improved over previous methods. Two additional components of our architecture, a) switching to L1 loss, and b) integrating a context module for proteins, further boost performance and robustness. On an established benchmark for proteo-chemometrics models, our architecture outperforms previous methods in all settings, including few- and zero-shot settings. In an ablation study, we analyze the importance of each of the components of our HyperNetwork approach.

Author Information

Emma Svensson (ELLIS Unit / University Linz)

PhD Student in Advanced machine learning for Innovative Drug Discovery.

Pieter-Jan Hoedt (Ellis Unit / University Linz)

PhD student at the Institute for Machine Learning at the Johannes Kepler University Linz. I am always eager to learn new things, so feel free to approach me with any fun fact you happen to know!

Sepp Hochreiter (ELLIS Unit / University Linz)
Günter Klambauer (Johannes Kepler University Linz)

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