Christian Fuegen joined Facebook as a Research Scientist in 2013 due to the acquisition of Mobile Technologies. At Mobile Technologies, Christian was one of the core developers of “Jibbigo”, an on-device speech-to-speech translator for mobile devices, where he worked from 2007 until 2013, first as a research scientist and later as director of research.

Christian Fuegen received his doctorate for his work on simultaneous translation systems of lectures and speeches from University of Karlsruhe (TH) in 2008 in which he developed core components for a first ever simultaneous lecture translation system, including innovations in speech recognition, segmentation, adaptation and work on real- time and latency requirements for simultaneous speech translation systems.

Besides this, Christian Fuegen has worked on a wide range of topics in the field of speech processing, speech translation and user interfaces and participated in numerous international speech-to-text evaluation campaigns on conversational telephone speech, meetings, lectures and European parliament plenary speeches. He also participated in the development of the single pass Ibis speech-to-text decoder used for these evaluations.


Speech recognition, speech-to-speech translation, natural language understanding, and machine learning.

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