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Phil Diegmann
All work

Pipeline design and validation

LLM judges for BPMN process model annotation

LLM judges label a process model dataset, but their labels only become training data after agreement with human experts is measured.

Context and problem

A dataset of business process models needs quality labels. Manual expert annotation does not scale, and unchecked model labels are not trustworthy enough to train on.

Labelling target

The labelling target is the fit between a student’s process model and its task, not syntax or linting.

Approach

  • For each item the judge receives the task text, an LLM-generated rubric, a reference solution and the student solution.
  • Two datasets: one with reference models, one without.
  • Judge outputs are checked for agreement with human experts before they count as labels.
  • Validated labels then serve as fine-tuning data for a faster grading model.
Inputstask, rubric, solutionsLLM judgesannotate each itemAgreement checkvs expert ratingsValidated labelsfine-tuning dataFast graderfine-tuned model

Principle

The model does the repetitive checking. Measured agreement with human experts decides when its labels can be trusted, not the fluency of its output.

Status

In progress. No agreement figures are published yet.

Transfer

The same validate-before-trust pattern applies to any LLM-assisted classification or review task in an organisation.