activity
20242026
most citedHANNA: Hard-constraint Neural Network for Consistent Activity Coefficient Prediction

48 citations · 56 across the 8 of their papers we have counts for

collaborators

8 papers

physics.chem-ph2026

Composition-Dependent Self-Diffusion Coefficients in Liquid Mixtures from Hybrid Machine Learning

Jens Wagner, Thomas Specht, Hans Hasse +1

Self-diffusion coefficients are key descriptors of molecular mobility, yet experimental data remain scarce, highlighting the need for reliable prediction methods. In previous work,…

physics.chem-ph2026

Hybrid Machine Learning for Enhanced Prediction of Diffusion Coefficients in Liquids

Jens Wagner, Zeno Romero, Kerstin Münnemann +4

Diffusion coefficients are key thermophysical properties for modeling mass transport in liquids, but experimental data are scarce, making reliable prediction methods indispensable.…

physics.chem-ph2025

CHAOS -- A Consistent Large-scale Database for Sigma-Profiles and Other Molecular Descriptors

Dominik Gond, Justus Arweiler, Thomas Specht +2

Sigma-profiles obtained from quantum-chemical calculations are key molecular descriptors for solvent selection, thermodynamic modeling, and data-driven molecular design. However, e…

cs.LG2025★ 2 cited

Thermodynamically consistent machine learning model for excess Gibbs energy

Marco Hoffmann, Thomas Specht, Quirin Göttl +4

The excess Gibbs energy plays a central role in chemical engineering and chemistry, providing a basis for modeling thermodynamic properties of liquid mixtures. Predicting the exces…

cs.CE2025★ 1 cited

MLPROP -- an open interactive web interface for thermophysical property prediction with machine learning

Marco Hoffmann, Thomas Specht, Nicolas Hayer +2

Machine learning (ML) enables the development of powerful methods for predicting thermophysical properties with unprecedented scope and accuracy. However, technical barriers like c…

physics.chem-ph2024★ 4 cited

Prediction of Activity Coefficients by Similarity-Based Imputation using Quantum-Chemical Descriptors

Nicolas Hayer, Thomas Specht, Justus Arweiler +3

In this work, we introduce a novel approach for predicting thermodynamic properties of binary mixtures, which we call the similarity-based method (SBM). The method is based on quan…

cs.LG2024★ 1 cited

SetPINNs: Set-based Physics-informed Neural Networks

Mayank Nagda, Phil Ostheimer, Thomas Specht +5

Physics-Informed Neural Networks (PINNs) solve partial differential equations using deep learning. However, conventional PINNs perform pointwise predictions that neglect dependenci…

cs.LG2024★ 48 cited

HANNA: Hard-constraint Neural Network for Consistent Activity Coefficient Prediction

Thomas Specht, Mayank Nagda, Sophie Fellenz +3

We present the first hard-constraint neural network for predicting activity coefficients (HANNA), a thermodynamic mixture property that is the basis for many applications in scienc…