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A domain-label-guided translation model for molecular optimization.

Yajie Zhang1, Yongqi Tong1, Xin Xia2

  • 1School of Computer Science and Technology, Anhui University, Hefei, 230601, China.

Methods (San Diego, Calif.)
|February 23, 2024
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Summary

This study introduces a domain-label-guided translation model (DLTM) for molecular optimization. DLTM enhances drug discovery by generating diverse molecules with desired properties, overcoming limitations of existing methods.

Keywords:
Deep learningDrug discoveryMolecular optimization

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Area of Science:

  • Computational chemistry
  • Drug discovery
  • Machine learning in chemistry

Background:

  • Molecular optimization is critical for drug discovery but challenging.
  • Existing translation models for molecular optimization often require matched molecular pairs, limiting dataset applicability.
  • Models not requiring matched pairs often sacrifice performance due to insufficient supervision.

Purpose of the Study:

  • To propose a novel domain-label-guided translation model (DLTM) for molecular optimization.
  • To address the limitations of existing molecular optimization models by incorporating domain label information.
  • To improve the generation of diverse molecules with desired properties.

Main Methods:

  • Developed a domain-label-guided translation model (DLTM).
  • Utilized domain label information as a control condition for generating diverse molecular embeddings.
  • Incorporated a classifier network to guide molecule generation towards desired properties.

Main Results:

  • DLTM demonstrated superior performance compared to baseline models on molecular optimization tasks.
  • The model effectively generated diverse molecules by leveraging domain label information.
  • The classifier network successfully guided the generation of molecules with target properties.

Conclusions:

  • DLTM offers a promising approach for molecular optimization in drug discovery.
  • The model overcomes data limitations by not requiring matched molecular pairs.
  • DLTM enables the generation of high-property molecules with controllable characteristics.