| 11854530 |
Automated content feedback generation system for non-native spontaneous speech |
Ching-Ni Hsieh, Klaus Zechner, Matthew Mulholland, Yuan-Fang Wang |
2023-12-26 |
| 11455999 |
Detection of off-topic spoken responses using machine learning |
Xinhao Wang, Keelan Evanini, Klaus Zechner, Yao Qian |
2022-09-27 |
| 10867525 |
Systems and methods for generating recitation items |
Lei Chen, Keelan Evanini, Klaus Zechner |
2020-12-15 |
| 9928754 |
Systems and methods for generating recitation items |
Lei Chen, Keelan Evanini, Klaus Zechner |
2018-03-27 |
| 9704413 |
Non-scorable response filters for speech scoring systems |
Derrick Higgins, Klaus Zechner, Shasha Xie, Je Hun Jeon, Keelan Evanini +2 more |
2017-07-11 |
| 9652999 |
Computer-implemented systems and methods for estimating word accuracy for automatic speech recognition |
Lei Chen, Klaus Zechner |
2017-05-16 |
| 9514109 |
Computer-implemented systems and methods for scoring of spoken responses based on part of speech patterns |
Suma Memana Narayana Bhat |
2016-12-06 |
| 9449522 |
Systems and methods for evaluating difficulty of spoken text |
Yeonsuk Cho, Klaus Zechner, Diane Napolitano |
2016-09-20 |
| 9361908 |
Computer-implemented systems and methods for scoring concatenated speech responses |
Klaus Zechner, Lei Chen, Shasha Xie, Xiaoming Xi, Chaitanya Ramineni |
2016-06-07 |
| 8990082 |
Non-scorable response filters for speech scoring systems |
Derrick Higgins, Klaus Zechner, Shasha Xie, Je Hun Jeon, Keelan Evanini |
2015-03-24 |