Automaatika referaat (eng)
Ordinate, a subsidiary of Harcourt, has been developing language tests since the 90's
where basic language abilities such as reading or repeating are tested (Bernstein, 1999).
This is another way of avoiding the high error rate in open-ended speech recognition for
spontaneous speech. They showed correlations around 0.80 between their tests and other
widely used language tests such as ETS's TOEFL (Bernstein, DeJong, Pisoni, & Townshend,
2000). Cucchiarini et al. (Cucchiarini, Strik, & Boves, 1997a, 1997b) developed a speech
recognition based automatic pronunciation scoring system for Dutch by using features
such as log likelihood Hidden Markov Model scores, various duration scores, and
information on pauses, word stress, syllable structure, and intonation. They also found
good agreement (correlations above 0.70) between machine scores and human ratings of
pronunciation