Comparison of hybrid recurrent neural networks and dual‐polarization models of valve regulated lead acid battery

2020 ◽  
Author(s):  
Adrian Chmielewski ◽  
Jakub Możaryn ◽  
Piotr Piórkowski ◽  
Jacek Dybała
Keyword(s):  
Neural Networks ◽  
Recurrent Neural Networks ◽  
Lead Acid Battery ◽  
Dual Polarization ◽  
Polarization Models ◽  
Lead Acid

Levenshtein Augmentation Improves Performance of SMILES Based Deep-Learning Synthesis Prediction

2020 ◽  
Author(s):  
Dean Sumner ◽  
Jiazhen He ◽  
Amol Thakkar ◽  
Ola Engkvist ◽  
Esben Jannik Bjerrum
Keyword(s):  
Neural Networks ◽  
Pattern Recognition ◽  
Deep Learning ◽  
Recurrent Neural Networks ◽  
Data Augmentation ◽  
State Of The Art ◽  
Sequence Similarity ◽  
Learning Models ◽  
Underlying Network

<p>SMILES randomization, a form of data augmentation, has previously been shown to increase the performance of deep learning models compared to non-augmented baselines. Here, we propose a novel data augmentation method we call “Levenshtein augmentation” which considers local SMILES sub-sequence similarity between reactants and their respective products when creating training pairs. The performance of Levenshtein augmentation was tested using two state of the art models - transformer and sequence-to-sequence based recurrent neural networks with attention. Levenshtein augmentation demonstrated an increase performance over non-augmented, and conventionally SMILES randomization augmented data when used for training of baseline models. Furthermore, Levenshtein augmentation seemingly results in what we define as <i>attentional gain </i>– an enhancement in the pattern recognition capabilities of the underlying network to molecular motifs.</p>

LEACHING PROPERTIES OF LEAD PASTE IN SPENT LEAD-ACID BATTERY WITH A HYDROMETALLURGICAL PROCESS AT ROOM TEMPERATURE

2013 ◽  
Vol 12 (11) ◽  
pp. 2175-2182 ◽  
Author(s):  
Jiakuan Yang ◽  
Xinfeng Zhu ◽  
Lei Li ◽  
Jianwen Liu ◽  
Ramachandran Vasant Kumar
Keyword(s):  
Room Temperature ◽  
Hydrometallurgical Process ◽  
Lead Acid Battery ◽  
Lead Acid
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