arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1908.08501physics.chem-ph
收藏

IMPRESSION --使用机器学习预测三维化学结构的NMR参数,具有接近量子化学的精度

IMPRESSION -- Prediction of NMR Parameters for 3-dimensional chemical structures using Machine Learning with near quantum chemical accuracy

Will Gerrard, Lars Andersen Bratholm, Martin Packer, Adrian J. Mulholland, David R. Glowacki, Craig P. Butts

摘要:

IMPRESSION(Intelligent Machine Prediction of Shift and Scalar Information Of Nuclei)机器学习系统为从三维化学结构预测NMR参数提供了一条高效准确的途径。在这里,我们证明了在NMR参数的量子化学计算值上训练的机器学习预测基本上与量子化学计算(每个分子数小时/天)一样准确,但计算效率更高(每个分子数十毫秒)。在量子化学而不是实验数据上训练机器学习系统,避免了对大型,结构多样,无错误的实验数据库存在的需求,并使IMPRESSION适用于解决分子构象和异构性等三维问题

英文摘要:

The IMPRESSION (Intelligent Machine PREdiction of Shift and Scalar Information Of Nuclei) machine learning system provides an efficient and accurate route to the prediction of NMR parameters from 3-dimensional chemical structures. Here we demonstrate that machine learning predictions, trained on quantum chemical computed values for NMR parameters, are essentially as accurate but computationally much more efficient (tens of milliseconds per molecule) than quantum chemical calculations (hours/days per molecule). Training the machine learning systems on quantum chemical, rather than experimental, data circumvents the need for existence of large, structurally diverse, error-free experimental databases and makes IMPRESSION applicable to solving 3-dimensional problems such as molecular conformation and isomerism

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑