专利名称：Systems and Methods for Evaluating
Difficulty of Spoken Text
发明人：Su-Youn Yoon,Yeonsuk Cho,Klaus
Zechner,Diane Napolitano
申请号：US14080867申请日：20131115
公开号：US20140141392A1公开日：20140522
专利附图：
摘要：Systems and methods are provided for assigning a difficulty score to a speechsample. Speech recognition is performed on a digitized version of the speech sample
using an acoustic model to generate word hypotheses for the speech sample. Timealignment is performed between the speech sample and the word hypotheses toassociate the word hypotheses with corresponding sounds of the speech sample. A firstdifficulty measure is determined based on the word hypotheses, and a second difficultymeasure is determined based on acoustic features of the speech sample. A difficultyscore for the speech sample is generated based on the first difficulty measure and thesecond difficulty measure.
申请人：Educational Testing Service
地址：Princeton NJ US
国籍：US
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