Author

Rishanth Rajendhran

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#artificial intelligence Preprint Oct 2026

IdeaLens: Detecting AI Ideas in Long-form Writing

While modern AI detectors identify who wrote the words, emerging policies on AI use increasingly hinge on a different question: who came up with the ideas? We introduce IdeaLens, a detector that identifies whether a document's ideas came from a human or AI (idea provenance), regardless of who wrote its words. To focus...

Rishanth Rajendhran, Minjoon Choi, Jenna Russell et al. · 0 citations

#artificial intelligence Jun 2026

POLARIS: Guiding Small Models to Write Long Stories

The results suggest that length generalization is a meaningful stress test for creative-writing models and a useful lens for distinguishing otherwise close models.

Rishanth Rajendhran, Jenna Russell, Mohit Iyyer et al. · arXiv.org · 1 citation