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| + | **Kristiina Jokinen, University of** | ||
| + | //New Information in Wikitalk - story telling for information presentation// | ||
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| In this talk I will discuss issues related to information presentation in an interactive system, | In this talk I will discuss issues related to information presentation in an interactive system, | ||
| Wikitalk (Wilcock & Jokinen, 2011). This supports open-domain conversations using Wikipedia | Wikitalk (Wilcock & Jokinen, 2011). This supports open-domain conversations using Wikipedia | ||
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| feature in the system is that by extending the robot’s interaction capabilities by enabling Nao to | feature in the system is that by extending the robot’s interaction capabilities by enabling Nao to | ||
| talk about an unlimited range of topics. | talk about an unlimited range of topics. | ||
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| I will focus especially on how to present new information in a manner that allows the user to | I will focus especially on how to present new information in a manner that allows the user to | ||
| follow the presentation. The user can query Wikipedia via the Nao robot and have chosen entries | follow the presentation. The user can query Wikipedia via the Nao robot and have chosen entries | ||
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| these links non-verbally while reading the text would allow the user to further query the | these links non-verbally while reading the text would allow the user to further query the | ||
| encyclopedia without recourse to explicit menus. | encyclopedia without recourse to explicit menus. | ||
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| The articles are considered as possible Topics that the robot can talk about, while each link in the | The articles are considered as possible Topics that the robot can talk about, while each link in the | ||
| article is treated as new information that the user can shift their attention to, and ask for more | article is treated as new information that the user can shift their attention to, and ask for more | ||
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| i.e. pieces of information that structure the topic into subtopics and form the minimal units for | i.e. pieces of information that structure the topic into subtopics and form the minimal units for | ||
| presentation, | presentation, | ||
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| The challenge in presenting the Wikipedia information is how to convey its structure to the user | The challenge in presenting the Wikipedia information is how to convey its structure to the user | ||
| so that she can understand which are the new information links, and how to navigate in the topic | so that she can understand which are the new information links, and how to navigate in the topic | ||
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| about. We use topic trees (cf. McCoy and Cheng 1990, Jokinen et al. 1996) in which topics are | about. We use topic trees (cf. McCoy and Cheng 1990, Jokinen et al. 1996) in which topics are | ||
| structured into a tree that enables more flexible management of the recent topics. | structured into a tree that enables more flexible management of the recent topics. | ||
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| Moreover, we use the concepts of Topic and NewInfo (Jokinen 2009) where Topic refers to the | Moreover, we use the concepts of Topic and NewInfo (Jokinen 2009) where Topic refers to the | ||
| particular issue (Wiki-article) that the speakers are talking about, and NewInfo is the part of the | particular issue (Wiki-article) that the speakers are talking about, and NewInfo is the part of the | ||
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| based on the user's interest rather than a particular task structure that would limit the suitable | based on the user's interest rather than a particular task structure that would limit the suitable | ||
| topics for the interaction. | topics for the interaction. | ||
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| However, what is important in our case is to capture the speakers' | However, what is important in our case is to capture the speakers' | ||
| that the user can focus their attention to NewInfo. We have experimented with various gestures to | that the user can focus their attention to NewInfo. We have experimented with various gestures to | ||
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| gesture in Nao’s conversational repertoire would also enhance expressivity and add liveliness to | gesture in Nao’s conversational repertoire would also enhance expressivity and add liveliness to | ||
| the interaction. We identified a set of gestures which could be used to: | the interaction. We identified a set of gestures which could be used to: | ||
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| • Mark discourse level details such as paragraph and sentence boundaries. | • Mark discourse level details such as paragraph and sentence boundaries. | ||
| • Indicate hyperlinks | • Indicate hyperlinks | ||