webbased spoken dialogue agent

Ngày tải lên: 17/03/2014, 07:20

Ngày tải lên: 17/03/2014, 23:20

... W t The spoken language under- standing (SLU) module converts W t to an abstract representation of the user’s dialogue act (DA). The dialogue management (DM) module determines the user’s dialogue ... method of dialogue act de- tection for robust spoken dialogue system, we adopt the commonly-used Wizard-of-Oz approach (Fraser and Gilbert, 1991) to harvest the Tainan-city tour- guiding dialogue ... implemented and evalu- ated in aMandarin spoken dialogue system for tour-guiding service. Combined with scores derived from the ASR recognition probabil- ity and the dialogue history, the proposed ap- proach...

Ngày tải lên: 20/02/2014, 05:20

... Manager for Software Interface Agents. User Modeling and User-Adapted Interaction, 8(3-4). M. Rotaru and D. Litman. 2006. Exploiting Discourse Structure for Spoken Dialogue Performance Analy- sis. ... asso- ciated discourse segment purpose/intention. This theory has inspired several generic dialogue man- agers for spoken dialogue systems (e.g. (Rich and Sidner, 1998)). The NM requires that we have ... 63(Special Issue on NLP). D. Litman and S. Silliman. 2004. ITSPOKE: An intelli- gent tutoring spoken dialogue system. In Proc. of HLT/NAACL. S. Oviatt, R. Coulston and R. Lunsford. 2004. When...

Ngày tải lên: 20/02/2014, 12:20

... Annotating Student Emotional States in Spoken Tutoring Dialogues. Proc. 5th Special Interest Group on Discourse and Dialogue Workshop on Discourse and Dialogue (SIGdial). D. J. Litman and ... Computational Learning Theory: 92-100. K. Forbes-Riley and D. Litman. 2004. Predicting Emotion in Spoken Dialogue from Multiple Knowledge Sources. Proceedings of Human Language Technology Conference ... Conclusion We have shown Co-training to be a promising approach for predicting emotions with spoken dialogue data. We have given an algorithm that increased the size of the training set producing...

Ngày tải lên: 20/02/2014, 16:20

... definition of context models for spoken dialogue systems. 5 Conclusions The paper has presented a probabilistic topic model to be used as a context model for spoken dialogue systems. The model ... In Dialogue Processing in Spoken Dialogue Systems, pages 60-64. Proceedings of the ECAI'96 Workshop, Budapest, Hungary. N. Reithinger and E. Maier. 1995. Utilizing statisti- cal dialogue ... utterance rather than strict prediction of dialogue act sequences. Recently also keyword-based topic identification has been applied to dialogue move (dialogue act) recognition (Garner, 1997)....

Ngày tải lên: 20/02/2014, 18:20

... informing work on spoken dialogue systems, is somewhat at odds with previous think- ing about turn-taking. Although turn-taking behaviour is cul- turally dependent , human dialogue is generally ... This can be when the follower is not happy for the dialogue to move on, or it can be when the giver has just asked as a question. Of course, a dialogue system using our model would be able to catch ... continuers, using only limited processing and information that is readily available to current spoken dialogue systems. Pause duration and a statistical part-of-speech language model were examined...

Ngày tải lên: 22/02/2014, 02:20

... training and was thus not included in the analysis. Each dialogue pair consisted of one dialogue between a user and our system and one dialogue between the same user and a system designed as described ... constructions needed. The dialogues with the Chung system were designed manually, as this system is implemented for an- other domain. The order of the dialogues in a pair was randomized. The dialogues were ... responses in dialogue. In Cog- nitive Science 28: 811-840. M.A. Walker, R. Passonneau, and J.E. Boland. 2001. Quanti- tative and qualitative evaluation of DARPA communicator spoken dialogue systems....

Ngày tải lên: 22/02/2014, 02:20

... capture different aspects of dialogue coordination and that exploring various formulations of entrainment de- serves future attention. 3.3 Dialogue coordination The coordination of turn-taking in dialogue is ... the effectiveness of the dialogue. To de- termine the extent to which task success is related to the degree of entrainment in high-frequency word usage, we examined 48 dialogues. We computed the correlation ... speakers— are generally perceived as a sign of poorly coordinated dialogues. 171 To determine the relationship between entrain- ment and dialogue coordination, we examined the correlation between entrainment...

Ngày tải lên: 08/03/2014, 01:20

... for evaluat- ing spoken dialogue agents. In Proceedings of the ACL, 271–280 M. Walker and R. Passonneau. 2001. DATE: a dia- logue act tagging scheme for evaluation of spoken dialogue systems. ... Discourse Understanding in Spoken Dialogue Systems. ACM Transactions on Speech and Language Processing (TSLP) , Volume 1, 1-20. X. Huang, A. Acero, and H W. Hon. 2001. Spoken Language Proceeding . ... effectively deals with a variety of conversational discourse information in the spoken dialogue systems. By modeling the dialogue discourse as the speech act sequence, the predictive method for speech...

Ngày tải lên: 08/03/2014, 02:21

... Introduction Building a robust spoken dialogue system for a new task currently requires considerable effort, includ- ing extensive data collection, grammar develop- ment, and building a dialogue manager that ... for man- aging the dialogue. The collaboration manager queries a domain-specific task component in order to make decisions about interpretations and re- sponses. 4 TRIPS Spoken Dialogue Interface ... Association for Computational Linguistics Two diverse systems built using generic components for spoken dialogue (Recent Progress on TRIPS) James Allen, George Ferguson, Mary Swift, Amanda Stent,...

Ngày tải lên: 08/03/2014, 04:22

... can be used by a dialogue manager to decide appro- priate system reactions. The approach is novel in combining machine learning with n-best processing for spoken dialogue systems using ... GEMINI: a natural lan- guage system for spoken- language understand- ing. In Proceedings of ACL-93. Malte Gabsdil. 2003. Classifying Recognition Re- sults for Spoken Dialogue Systems. In Proceed- ings ... pragmatic plausi- bility features computed from dialogue context to predict the accuracy of incoming n-best recogni- tion hypotheses to a spoken dialogue system. Our best results show a 25% weighted...

Ngày tải lên: 08/03/2014, 04:22

... the model of dialogue interaction. This model allows for a more natural description of dialogue prob- lems, and in particular allows for intuitive han- dling of noisy and ambiguous dialogues. Few existing ... Augmented MDP) to conventional MDP dialogue strategies. 2 Dialogue Systems and POMDPs A Partially Observable Markov Decision Process (POMDP) is a natural way of modelling dialogue processes, especially ... the length of each dialogue cycle. 4.1 The Restricted State Space Problem The exact POMDP policy was generated using the Incremental Improvement algorithm (Cassan- Spoken Dialogue Management...

Ngày tải lên: 08/03/2014, 05:20

... explicitly mentioned in the dialogue. Accord- ing to this criterion only 44% of users in the Help condition and 18% of users in the No Help con- 152 Targeted Help for Spoken Dialogue Systems: intelligent ... ex- periments on a spoken dialogue system for command and control of a simulated robotic helicopter. 1 Introduction Targeted Help makes use of user utterances that are out-of-coverage of the main dialogue ... Rayner. 2002. Adding intelligent help to mixed-initiative spoken dialogue systems. In Proceedings of the Seventh Interna- tional Conference on Spoken Language Processing (ICSLP), Denver, CO. B.A....

Ngày tải lên: 08/03/2014, 21:20

... Infor- mation presentation in spoken dialogue systems. In Proceedings of EACL. James Henderson, Oliver Lemon, and Kallirroi Georgila. 2008. Hybrid reinforcement / supervised learning of dialogue policies ... generation for spoken dialogue: an experiment. In In Proc. of IC- SLP. Amanda Stent, Rashmi Prasad, and Marilyn Walker. 2004. Trainable sentence planning for complex in- formation presentation in spoken ... of user tailoring and cognitive load on user performance in spoken dialogue systems. In Proc. of the 10th International Conference of Spoken Language Processing (Inter- speech/ICSLP). SJ Young,...

Ngày tải lên: 08/03/2014, 21:20

... presents a proof of concept of these ideas in the form of a complete, working spoken dialogue system. The POMDP dialogue manager (DM) of this demon- stration system uses a compressed belief space that ... Goals The type of SDS task that we focus on is a limited- domain query -dialogue, also known as a “slot fill- ing” task. The spoken dialogue system has knowl- edge about some set of objects where these ... statistical dialogue systems. In proceedings of SIGdial. Paul A. Crook and Oliver Lemon. 2011. Lossless Value Directed Compression of Complex User Goal States for Statistical Spoken Dialogue Systems....

Ngày tải lên: 08/03/2014, 21:20

... System User Interaction (learning) 4.1 Dialogue Manager The dialogue manager identifies the next instruc- tion (dialogue act) to give to the user based on the dialogue management policy π dm . Since, ... in a Situated Spoken Dialogue Task. In Proc. ENLG’09. S. Janarthanam and O. Lemon. 2009c. Learning Lexi- cal Alignment Policies for Generating Referring Ex- pressions for Spoken Dialogue Systems. ... also recorded the time taken to com- plete each dialogue task. We used these data to build a regression model to calculate total dialogue time for dialogue simulations. The strategies were never...

Ngày tải lên: 16/03/2014, 23:20

Ngày tải lên: 17/03/2014, 00:20

Ngày tải lên: 17/03/2014, 07:20

Ngày tải lên: 17/03/2014, 07:20