a spoken dialogue interface

Ngày tải lên: 31/03/2014, 03:20

... utterance, H t is the dialogue historical information, and Ω = {A 1 , . . . , A q } is the set of DAs. Using the maximum approximation for summation, (1) can be written as A ∗ t = arg max A Ω  W P ... 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 act A ∗ t and accordingly ... infor- mation data set harvested from the databases avail- able on the web, e.g., Wikipedia and Google Map. A- data consists of 1, 603 sentences with 317 word types. The second type of data, called...

Ngày tải lên: 20/02/2014, 05:20

Ngày tải lên: 23/03/2014, 17:20

Ngày tải lên: 23/03/2014, 19:20

... tutoring task. In addition, the SIH is not always available and users have to activate it manually. Other visual improvements for dialogue- based computer tutors have been explored in the past (e.g. ... Uncertainty in Spoken Tutorial Dialogue Systems. International Journal of Artificial Intelligence in Education, 16. C. Rich and C. L. Sidner. 1998. COLLAGEN: A Col- laboration Manager for Software ... Tuto r 5 362 that naïve users can reliably annotate the informa- tion needed for the NM (Passonneau and Litman, 1993). Our NM design choices should also have an equivalent in a new domain (e.g. displaying...

Ngày tải lên: 20/02/2014, 12:20

... Sydney, Australia. Australian Speech Science and Technology As- sociation (ASSTA). J. Carletta, A. Isard, S. Isard, J. Kowtko, G. Doherty- Sneddon, and A. Anderson. 1997. The reliability of a di- alogue ... indicated by con- junctive and case/adverbial particles and adverbial verb forms, coupled with the FO contours flat-fall and rise-fall. Ward & Tsukahara (2000) modeled the location of backchannel ... difficulty with evaluating a model such as ours is that human speakers differ markedly in their own backchanneling behaviour. As Ward and Tsuka- hara (2000) remark, " ;a rule can predict opportunities, but...

Ngày tải lên: 22/02/2014, 02:20

Ngày tải lên: 08/03/2014, 21:20

Ngày tải lên: 17/03/2014, 07:20

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Ngày tải lên: 17/03/2014, 23:20

Ngày tải lên: 23/03/2014, 19:20

Ngày tải lên: 23/03/2014, 20:21

Ngày tải lên: 22/06/2014, 23:20

... 08540, USA usyed@cs.princeton.edu Jason D. Williams Shannon Laboratory AT&T Labs — Research Florham Park, NJ 07932, USA jdw@research.att.com Abstract We use an EM algorithm to learn user ... expectation and its maximization are easy to compute. This is because our dialog model has a chain-like structure that closely resembles an Hidden Markov Model, so a forward-backward procedure can ... θ be the maximum likelihood estimate using automatically transcribed data, i.e., θ asu = e K D as P a e K D as . This approach ignores transcription errors and assumes that user be- havior depends...

Ngày tải lên: 20/02/2014, 09:20

... instances. We compare the learning curve from Co-training with a baseline of majority class and an upper-bound, in which the classifiers are trained on human-annotated data. Post-hoc analyses ... promising approach for predicting emotions with spoken dialogue data. We have given an algorithm that increased the size of the training set producing even better accuracy than the manually labeled ... (where an utterance is a student’s turn in a dialogue) . Unfortunately, high dimensionality, i.e. large amount of input features, may lead to a large variance of estimates, noise, overfitting, and...

Ngày tải lên: 20/02/2014, 16:20

... Knowledge Base Yoji Kiyota, Sadao Kurohashi (The University of Tokyo) kiyota,kuro @kc.t.u-tokyo.ac.jp Teruhisa Misu, Kazunori Komatani, Tatsuya Kawahara (Kyoto University) misu,komatani,kawahara @kuis.kyoto-u.ac.jp Fuyuko ... typical vague user question. If a user question matches it, the dialog manager asks the back question after SYS , showing choices be- Dialog Navigator : A Spoken Dialog Q -A System based on Large ... solutions have problems: it is diffi- cult for beginners to retrieve a proper item in large manuals; experts are not always near us; and call centers are not always available. Furthermore, op- eration...

Ngày tải lên: 20/02/2014, 16:20

... management for spoken dialogue systems. Finally, statistical modelling is prone to sparse data problems, and we need to consider ways to overcome inaccuracies in calculating mutual information. ... test utterances), and used the other 70 dialogues for training in each test cycle. The average accuracy rate, 78.68 % is a satisfactory result. We also did another set of cross-validation tests ... Focus of attention: Constraining what can be said next. In C. L. Paris, W. R. Swartout, and W. C. Moore, ed- itors, Natural Language Generation in Artificial Intelligence and Computational Linguistics,...

Ngày tải lên: 20/02/2014, 18:20

... efficient and natural access to applica- tions and services, such as email and calendars, travel and entertainment booking, and product rec- ommendation. In evaluating nine SDS in the DARPA Communicator ... designed manually, as this system is implemented for an- other domain. The order of the dialogues in a pair was randomized. The dialogues were provided as transcripts. After reading each dialogue transcript, ... in- formation is given about the cluster. All positive homogeneous attributes are mentioned and con- trasted against all average or negative attributes. An attribute that was used for identification...

Ngày tải lên: 22/02/2014, 02:20

... Seve- ral factors, such as the availability of more power- ful computers, an almost unlimited storage ca- pacity, the availability of large volumes of data in digital format, as well as the ... data-driven methodolo- gy for dialogue management and natural language generation. Springer. Stallard D (2000) Talk’n’travel: a conversational system for air travel planning. In Proceedings of ... in which human-human dialogue applications already exists, data collection is generally straight forward, while in some other cases, data design and collec- tion can constitute a complex problem...

Ngày tải lên: 07/03/2014, 18:20

... exchanges characterized by overlaps are reliably associated with entrainment in usage of affirmative cue word, filled pauses and game-specific most frequent words. Long latency is negatively associated ... Word Entrainment in Spoken Dialogue Ani Nenkova Dept. of Computer and Information Science University of Pennsylvania Philadelphia, PA 19104, USA nenkova@seas.upenn.edu Agust ´ ın Gravano Dept. ... corpus), and its as- sociation with dialogue naturalness and flow, as well as with task success. Our results show that such entrainment is predictive of the per- ceived naturalness of dialogues and...

Ngày tải lên: 08/03/2014, 01:20