Impact of word graph density on the quality of posterior probability based confidence measures. - Tibor Fábián; Robert Lieb; Günther Ruske; Matthias Thomae (INTERSPEECH, 2003)

Estimation of semantic confidences on lattice hierarchies. - Robert Lieb; Tibor Fábián; Günther Ruske; Matthias Thomae (INTERSPEECH, 2004)

A confidence-guided dynamic pruning approach - utilization of confidence measurement in speech recognition. - Tibor Fábián; Robert Lieb; Günther Ruske; Matthias Thomae (INTERSPEECH, 2005)

A flexible and integrated interface between speech recognition, speech interpretation and dialog management. - Robert Lieb; Matthias Thomae; Günther Ruske; Daniel Bobbert; Frank Althoff (INTERSPEECH, 2005)

Lexical out-of-vocabulary models for one-stage speech interpretation. - Matthias Thomae; Tibor Fábián; Robert Lieb; Günther Ruske (INTERSPEECH, 2005)

Hierarchical language models for one-stage speech interpretation. - Matthias Thomae; Tibor Fábián; Robert Lieb; Günther Ruske (INTERSPEECH, 2005)

Efficient integration of hierarchical knowledge sources and the estimation of semantic confidences for automatic speech interpretation. - Robert Lieb (2006)