Comparing human versus automatic feature extraction for fine-grained elementary readability assessment. - Yi Ma; Ritu Singh; Eric Fosler-Lussier; Robert Lofthus (PITR@NAACL-HLT, 2012)

Ranking-based readability assessment for early primary children's literature. - Yi Ma; Eric Fosler-Lussier; Robert Lofthus (HLT-NAACL, 2012)