TM Approach I: Initial Plan

 

Initial plan and approach: port to Sage 2.1 and fit to existing data

Overview

Summary

This initial approach started from the scripts and data left by Pavan, Meghan, and Jessica. Unfortunately, the re-fit force field showed worse performance overall than the original Sage 2.1.0 force field. As it turns out, many of the new parameters were not covered by existing training data, including the new torsion multiplicity data sets, so an expansion of training data and another round of fits was started in Approach II.

GitHub repo/branch

 

Status

Won't progress

 Milestones and metrics

Stage

Milestone/Benchmark

Contributors

Deadline

Status

Stage

Milestone/Benchmark

Contributors

Deadline

Status

Re-fit 2.1.0 to TM data

Re-fit 2.1.0 to TM data

@Brent Westbrook (Unlicensed)

Jan 2024

Completed

Benchmark

Improved or equivalent performance on industry benchmark data

@Brent Westbrook (Unlicensed)

Jan 2024

Failed

 

Progress and findings

Industry Benchmark

The initial refit with the new data performed a bit worse than the original Sage 2.1.0 refit. To control for the presence of the new data, an additional refit of the Sage 2.1.0 force field with the new data was also conducted, which showed that the new data itself was adversely affecting the quality of the force field.