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作者： López-Cózar, Ramón Griol, David Dept. of Languages and Computer Systems University of Granada Spain Dept. of Computer Science Carlos III University of Madrid Spain

This paper proposes a new technique to enhance the performance of spoken dialogue systems which presents one novel contribution: the automatic correction of some ASR errors by using language models dependent on dialogue states, in conjunction with grammatical rules. These models are optimally selected by computing similarity scores between patterns obtained from uttered sentences and patterns learnt during training. Experimental results with a spoken dialogue system designed for the fast food domain show that our technique allows enhancing word accuracy, speech understanding and task completion rates of a spoken dialogue system by 8.5%, 16.54% and 44.17% absolute, respectively. © 2010 ISCA.

关键词： Speech recognition

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Generalization of an active electronic notebook for teaching multiple programming languages

Generalization of an active electronic notebook for teaching...

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2010 IEEE Education Engineering Conference, EDUCON 2010

作者： Torabzadeh-Tari, Mohsen Fritzson, Peter Pop, Adrian Sjölund, Martin PELAB - Programming Environment Lab Dept. Computer Science Linköping University SE-581 83 Linköping Sweden

ISBN: (纸本)9781424465682

In this paper we present a generalization of the active electronic notebook, OMNotebook, for handling multiple programming languages for educational purposes. OMNotebook can be an alternative or complementary tool to the traditional teaching method with lecturing and reading textbooks. Experience shows that using such an electronic book will lead to more engagement from the students. OMNotebook can contain technical computations and text, as well as graphics. Hence it is a suitable tool for teaching, experimentation, simulation, scripting, model documentation, storage, etc. OMNotebook is part of the open source platform OpenModelica. It is already used for the course material DrModelica in teaching the Modelica language but can easily be adapted to other programming languages which is also shown in this paper. The notebook can also be adapted to other areas, such as physics, chemistry, biology, biomechanics etc., where phenomena can be illustrated by dynamic simulations within the notebook. The idea behind this paper is to show that by using a standardized interface the notebook can be extended to any computer language, i.e., being language independent. This is shown in the form of an implementation and adaptation of the notebook to support the Scheme language. © 2010 IEEE.

关键词： Teaching

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Simulating intonation in regional varieties of Swedish 5

Simulating intonation in regional varieties of Swedish

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5th International Conference on Speech Prosody: Every Language, Every Style, SP 2010

作者： Schötz, Susanne Beskow, Jonas Bruce, Gösta Granström, Björn Gustafson, Joakim Dept. of Linguistics and Phonetics Centre for Languages and Literature Lund University Sweden Dept. of Speech Music and Hearing School of Computer Science and Communication KTH Sweden

Within the research project SIMULEKT (Simulating Intonational Varieties of Swedish), our recent work includes two approaches to simulating intonation in regional varieties of Swedish. The first involves a method for modelling intonation using the SWING (SWedish INtonation Generator) tool, where annotated speech samples are resynthesised with rule-based intonation and audio-visually analysed with regards to the major intonational varieties of Swedish. The second approach concerns a method for simulating dialects with HMM synthesis, where speech is generated from emphasis-tagged text. We consider both approaches important in our aim to test and further develop the Swedish prosody model, as well as to convincingly simulate Swedish regional varieties using speech synthesis. © 2010 Proceedings of the International Conference on Speech Prosody.

关键词： Speech synthesis

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A methodology for learning optimal dialog strategies

A methodology for learning optimal dialog strategies

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13th International Conference on Text, Speech and Dialogue, TSD 2010

作者： Griol, David McTear, Michael F. Callejas, Zoraida López-Cózar, Ramón Ábalos, Nieves Espejo, Gonzalo Dept. of Computer Science Carlos III University Madrid Spain School of Computing and Mathematics University of Ulster Ireland Dept. of Languages and Computer Systems CITIC-UGR University of Granada Spain

ISBN: (纸本)3642157599

In this paper, we present a technique for learning new dialog strategies by using a statistical dialog manager that is trained from a dialog corpus. A dialog simulation technique has been developed to acquire data required to train the dialog model and then explore new dialog strategies. A set of measures has also been defined to evaluate the dialog strategy that is automatically learned. We have applied this technique to explore the space of possible dialog strategies for a dialog system that collects monitored data from patients suffering from diabetes. © 2010 Springer-Verlag Berlin Heidelberg.

关键词： Artificial intelligence

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Implementing a mobile campus using MLE moodle

Implementing a mobile campus using MLE moodle

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5th International Conference on P2P, Parallel, Grid, Cloud and Internet Computing, 3PGCIC 2010

作者： Xhafa, Fatos Caballe, Santi Rustarazo, Isaac Barolli, Leonard Dept. of Languages and Informatics Systems Technical University of Catalonia Spain Dept. of Computer Science Multimedia and Telecommunication Open University of Catalonia Spain Dept. of Information and Communication Engineering Fukuoka Institute of Technology Japan

ISBN: (纸本)9780769542379

Mobile learning is considered the next step of online learning by incorporating mobility as a key requirement. Indeed, the current wide spread of mobile devices and wireless technologies brings an enormous potential to e-learning, in terms of ubiquity, pervasiveness, personalization, flexibility, and so on. For this reason, Mobile Learning is attracting significant research efforts covering a fairly variety of learning settings, from schools and universities to workplaces and cities. This research has evidenced that mobile technology can offer new opportunities for learners to learn inside and beyond the traditional instructor-oriented educational paradigm. However, mobile technologies are still in its infancy and many challenges arise. In this paper we analyze, from both learning and technological perspectives, the development of learning applications using mobile devices. To this end, proxy and proxy less architectures are considered as way to extend traditional virtual campuses with mobile clients. The objective is twofold: to access learning materials and to support learning activities. A prototype of a Virtual Campus is developed using MLE-Moodle -the Mobile Learning module of Moodle. The proposed Virtual Campus enables mobile clients to perform online learning activities and is a step towards achieving the 'anytime, anywhere' paradigm. © 2010 IEEE.

关键词： E-learning

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F2 - New technique for recognition of user emotional states in spoken dialogue systems

F2 - New technique for recognition of user emotional states ...

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11th Annual Meeting of the Special Interest Group on Discourse and Dialogue, SIGDIAL 2010

作者： López-Cózar, Ramón Jan, Silovsky Griol, David Dept. of Languages and Computer Systems CTIC-UGR University of Granada Spain Institute of Information Technology and Electronics Technical University of Liberec Czech Republic Dept. of Computer Science Carlos III University of Madrid Spain

ISBN: (纸本)9781932432855

In this paper we propose a new technique to enhance emotion recognition by combining in different ways what we call emotion predictions. The technique is called F2 as the combination is based on a double fusion process. The input to the first fusion phase is the output of a number of classifiers which deal with different types of information regarding each sentence uttered by the user. The output of this process is the input to the second fusion stage, which provides as output the most likely emotional category. Experiments have been carried out using a previously-developed spoken dialogue system designed for the fast food domain. Results obtained considering three and two emotional categories show that our technique outperforms the standard single fusion technique by 2.25% and 3.35% absolute, respectively. © 2010 Association for Computational Linguistics.

关键词： Emotion Recognition

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Influence of lexical tones on intonation in Kammu

Influence of lexical tones on intonation in Kammu

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作者： Karlsson, Anastasia House, David Svantesson, Jan-Olof Tayanin, Damrong Dept. of Linguistics and Phonetics Centre for Languages and Literature Lund University Sweden Dept. of Speech Music and Hearing School of Computer Science and Communication KTH Stockholm Sweden

The aim of this study is to investigate how the presence of lexical tones influences the realization of focal accent and sentence intonation. The language studied is Kammu, a language particularly well suited for the study as it has both tonal and non-tonal dialects. The main finding is that lexical tone exerts an influence on both sentence and focal accent in the tonal dialect to such a strong degree that we can postulate a hierarchy where lexical tone is strongest followed by sentence accent, with focal accent exerting the weakest influence on the F0 contour. © 2010 ISCA.

关键词： Speech communication

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Foreword: First International Workshop on the Web and Requirements Engineering

Foreword: First International Workshop on the Web and Requir...

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International Workshop on the Web and Requirements Engineering (WeRE)

作者： Irene Garrigós Jose-Norberto Mazón Nora Koch Maria José Escalona John Mylopoulos Dept. of Software and Computing Systems University of Alicante Spain Dept. of Computer Languages and Systems University of Seville Spain Programming and Software Engineering Dept. University of Munich Germany Information Engineering and Computer Science Dept. University of Trento Italy

The International Workshop on the Web and Requirements Engineering (WeRE) was held in conjunction with the 18 th International IEEE Requirements Engineering Conference (RE'10) in Sydney (Australia) on September 28 2010. WeRE intends to be an international forum for exchanging ideas on both using Web technologies as a platform in the requirements engineering field, and applying requirements engineering in the development and use of websites. Papers focused on new domains and new experiences with the connection between requirements engineering and the Web were presented in WeRE.

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Statistical dialog management methodologies for real applications

Statistical dialog management methodologies for real applica...

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11th Annual Meeting of the Special Interest Group on Discourse and Dialogue, SIGDIAL 2010

作者： Griol, David Callejas, Zoraida López-Cózar, Ramon Dept. of Computer Science Carlos III University of Madrid Av. Universidad 30 28911 Leganés Spain Dept. of Languages and Computer Systems CITIC-UGR University of Granada C/ Pdta. Daniel Saucedo Aranda 18071 Granada Spain

ISBN: (纸本)9781932432855

In this paper we present a proposal for the development of dialog systems that, on the one hand, takes into account the benefits of using standards like VoiceXML, whilst on the other, includes a statistical dialog module to avoid the effort of manually defining the dialog strategy. This module is trained using a labeled dialog corpus, and selects the next system response considering a classification process that takes into account the dialog history. Thus, system developers only need to define a set of VoiceXML files, each including a system prompt and the associated grammar to recognize the users responses to the prompt. We have applied this technique to develop a dialog system in VoiceXML that provides railway information in Spanish. © 2010 Association for Computational Linguistics.

关键词： Internet telephony

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Foreword: First International Workshop on the Web and Requirements Engineering

2010 1st International Workshop on the Web and Requirements ...

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2010 1st International Workshop on the Web and Requirements Engineering, WeRE 2010 2010年 i-ii页

作者： Garrigós, Irene Mazón, Jose-Norberto Escalona, Maria José Koch, Nora Mylopoulos, John Dept. of Software and Computing Systems University of Alicante Spain Dept. of Computer Languages and Systems University of Seville Spain Programming and Software Engineering Dept. University of Munich Germany Information Engineering and Computer Science Dept. University of Trento Italy

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