Pattern recognition
Looks for repetitive structures, overused transitions, uniform paragraph length, and a relentlessly formal tone.
A student edits those patterns out in minutes.
Three arguments for asking a different question, carried over from the original AuthWords proposal.
How generated text actually enters a classroom.
Commercial tools claim 80 to 95 percent accuracy. Results in practice vary widely, and false positives land hardest on multilingual writers.
Looks for repetitive structures, overused transitions, uniform paragraph length, and a relentlessly formal tone.
A student edits those patterns out in minutes.
Examines word-choice probabilities, n-gram frequencies, vocabulary sophistication, and syntactic complexity.
Models are trained to match human statistics ever more closely.
Measures how predictable the text is to a language model. Low perplexity is read as machine-like.
It assumes machines write predictably. Modern models are tuned not to.
Therefore: Detection tools are perpetually out of date.
Therefore: Detection becomes impossible once the model writes like the individual.
Therefore: Detection research directly enables evasion.
A student who trains a model on their own writing defeats a style comparison too. The institution’s only real advantage is writing the student never had a copy of: supervised, timed, in-class work and the revision history behind a draft.
The production design weights supervised writing and signed revision history most heavily, and treats stylometry as context rather than verdict. The public demo shows why: a simple style index cannot tell Austen from Shelley.
When the prompt is the graded artifact, the student’s prompts and iterations are the evidence. There is nothing to detect, because the generated essay was never the point.
What changed since the original proposal. Demographic priors and regional language models were removed; context is voluntary and can never raise a misconduct prior. Email collection is off by default and never crawled. Surveillance concerns are answered with architecture and consent, not with “no worse than plagiarism detection.”