Daryl Hedley

National Tutoring Observatory, FreshCognate

Papers on Lattice

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Publication activitypapers/week, last 8 weeks

Research focus

Data Curation & Synthetic Data (2)Natural Language Processing (2)Eval Frameworks & Benchmarks (1)

Frequent co-authors

D. Pietrzak (2)Doug Pietrzak (2)Bakhtawar Ahtisham (2)Zhuqian Zhou (2)

Papers (2)

Mar 9, 2026

National Tutoring Observatory2d ago·also CMU ML, MIT CSAIL, Cornell, FreshCognate

Sandpiper: Orchestrated AI-Annotation for Educational Discourse at Scale

Scale qualitative analysis of educational discourse data without sacrificing rigor using a mixed-initiative system that orchestrates LLMs and human expertise.

Daryl Hedley, D. Pietrzak, Doug Pietrzak +14

Data Curation & Synthetic Data Natural Language Processing

Feb 18, 2026

National Tutoring Observatory3w ago·also CMU ML, Cornell, FreshCognate

Utility-Preserving De-Identification for Math Tutoring: Investigating Numeric Ambiguity in the MathEd-PII Benchmark Dataset

Generic PII detection tools cripple math tutoring datasets by aggressively redacting numbers, but a math-aware LLM can preserve utility while protecting privacy.

Zhuqian Zhou, Kirk Vanacore, Bakhtawar Ahtisham +9

Data Curation & Synthetic Data Eval Frameworks & Benchmarks Natural Language Processing

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Daryl Hedley

Publication activitypapers/week, last 8 weeks

Research focus

Frequent co-authors

Papers (2)