PhD in natural language processing, with years spent building NLP applications end to end. Moe works on text analysis: lexical and syntactic structure, and what separates machine-generated prose from human prose statistically. He has been experimenting with computational linguistics since the early days of NLTK, spaCy and WordNet, and still writes most of his tooling in Python.
Common App calls AI-generated essay content fraud, UCAS requires a declaration and runs its own similarity checks, and Brown allows AI for spelling and grammar only. Here is what admissions offices have actually published, and why a personal statement is judged on voice long before any scanner gets involved.
There is no single fact that proves how an essay was written. What exists instead is corroboration: independent, hard-to-fake traces that converge on the same account. Here is what that evidence actually looks like, and what to start doing now if you have not been accused of anything yet.
A classifier trained to react to statistical pattern does not need to have seen a specific chatbot to flag its output. Here is why that matters for DeepSeek, what Turnitin itself publishes about Claude, Gemini and other models by name, and what it does not publish for any of them.
An academic integrity email naming AI use is frightening precisely because there is no single fact that disproves a percentage. Here is what to do, in order, in the first 48 hours: what to say, what never to admit, what evidence to request, and how to find out whether a score is even allowed to stand alone.
Yes, Turnitin detects paraphrased text, and it was built to. Its similarity engine catches reworded passages that still overlap with published and previously submitted work, and its AI writing report carries a labelled category for AI-generated text revised with a paraphrasing tool or word spinner. Here is how each system catches it, and why swapping words for synonyms clears neither one.
Stilted non-native academic prose is rarely a grammar problem. It is collocation, hedging pitched at the wrong strength, sentence length that never varies, and nouns doing a verb's job. Here are concrete substitutions and a self-editing routine that catches all five without hiring an editor.