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Klaus Zechner

Klaus Zechner (Ph.D., Carnegie Mellon University) is a senior research scientist in the Natural Language Processing Lab in the Research & Development division of ETS. Since joining ETS in 2002, he has been pioneering research and development of technologies for automated scoring of non-native speech. He holds 20 patents on technology related to the SpeechRater® automated speech scoring system, which he and his team have been developing at ETS. SpeechRater is currently used operationally as a contributory scoring system along with human raters for the TOEFL iBT® Speaking assessment and as the sole scoring system for the TPO Speaking assessment. Additionally, SpeechRater is licensed by multiple external clients to support English language learning.

Zechner has authored more than 80 peer-reviewed publications in journals, book chapters, conference and workshop proceedings, and research reports. He co-edited a book on automated speaking assessment that was published by Routledge in 2019. The book provides an overview of the current state-of-the-art in automated speech scoring of spontaneous non-native speech.

Publications by this author