TY - CHAP A1 - Baumann, Timo A1 - Buß, Okko A1 - Atterer, Michaela A1 - Schlangen, David T1 - Evaluating the Potential Utility of ASR N-Best Lists for Incremental Spoken Dialogue Systems T2 - Proceedings of Interspeech 2009 : speech and intelligence ; 6 - 10 September, 2009, Brighton, UK N2 - The potential of using ASR n-best lists for dialogue systems has often been recognised (if less often realised): it is often the case that even when the top-ranked hypothesis is erroneous, a bet- ter one can be found at a lower rank. In this paper, we describe metrics for evaluating whether the same potential carries over to incremental dialogue systems, where ASR output is consumed and reacted upon while speech is still ongoing. We show that even small N can provide an advantage for semantic process- ing, at a cost of a computational overhead. KW - dialogue systems KW - speech recognition KW - naturallanguage understanding KW - incrementality Y1 - 2009 U6 - https://doi.org/10.21437/Interspeech.2009-318 SP - 1031 EP - 1034 PB - ISCA CY - Brighton, UK ER - TY - CHAP A1 - Atterer, Michaela A1 - Baumann, Timo A1 - Schlangen, David T1 - No Sooner Said Than Done: Testing the Incrementality of Semantic Interpretations of Spontaneous Speech T2 - Proceedings of Interspeech 2009 : 6 - 10 September 2009, Brighton, U.K. N2 - Ideally, a spoken dialogue system should react without much delay to a user’s utterance. Such a system would already select an object, for instance, before the user has finished her utterance about moving this particular object to a particular place. A prerequisite for such a prompt reaction is that semantic representations are built up on the fly and passed on to other modules. Few approaches to incremental semantics construction exist, and, to our knowledge, none of those has been systematically tested on a spontaneous speech corpus. In this paper, we develop measures to test empirically on transcribed spontaneous speech to what extent we can create semantic interpretation on the fly with an incremental semantic chunker that builds a frame semantics. KW - incrementality KW - spoken dialogue systems KW - spontaneous speech KW - evaluation Y1 - 2009 U6 - https://doi.org/10.21437/Interspeech.2009-539 SP - 1855 EP - 1858 PB - International Speech Communication Association CY - Brighton, UK ER - TY - CHAP A1 - Baumann, Timo A1 - Schlangen, David T1 - Evaluating Prosodic Processing for Incremental Speech Synthesis T2 - Proceedings of Interspeech 2012 N2 - Incremental speech synthesis (iSS) accepts input and produces output in consecutive chunks that only together result in a full utterance. Systems that use iSS thus have the ability to adapt their utterances while they are ongoing. Having available less than the full utterance to plan the acoustic realisation has downsides, however, as global optimisation is not possible anymore. In this paper we present a strategy for incrementalizing the symbolic pre-processing component of speech synthesis and assess the influence of a reduction in "lookahead", i. e. in knowledge about the rest of the utterance, on prosodic quality. We found that high quality incremental output can be achieved even with a lookahead of slightly less than one phrase, allowing for timely system reaction. KW - speech synthesis KW - spoken dialogue systems KW - incrementality KW - prosody Y1 - 2012 U6 - https://doi.org/10.21437/Interspeech.2012-152 SP - 438 EP - 441 PB - International Speech Communication Association ER -