Download Estimating Spoken Dialog System Quality with User Models by Klaus-Peter Engelbrecht PDF

By Klaus-Peter Engelbrecht

Spoken conversation structures have the aptitude to supply hugely intuitive person interfaces, as they permit structures to be managed utilizing traditional language. besides the fact that, the complexity inherent in common language dialogs implies that cautious trying out of the approach needs to be performed from the very starting of the layout strategy. This ebook examines how consumer versions can be utilized to aid such early reviews in methods: through operating simulations of dialogs, and by way of estimating the standard judgments of clients. First, a layout setting helping the production of conversation flows, the simulation of dialogs, and the research of the simulated information is proposed. How the standard of consumer simulations can be quantified with appreciate to their suitability for either formative and summative review is then mentioned. the rest of the booklet is devoted to the matter of predicting caliber judgments of clients in line with interplay information. New modeling ways are offered, which procedure the dialogs as sequences, and which enable wisdom concerning the judgment habit of clients to be included into predictions. All proposed equipment are demonstrated with instance evaluate studies.

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For example, one task was to find a restaurant that serves duck. For other attributes, like the price range or the location of the restaurant, the user could either invent constraints if she felt this was necessary, or she could state that no specific value was preferred for this attribute. 2 System Model The system model was re-implemented in Matlab, as running the original system from the command line could not be realized. e. not including the sentence parsing and prompt playback. The model draws on the same dynamic system resources (a restaurant database and a list of prompts) as the real system.

We then proceed with the comparison of individual actions in each corpus. As the workbench does not allow feeding in system states together with their history, we compared the unique actions in the simulated corpus to those in the real user corpus. This can be done under consideration of different amount of context of the action, where the context is defined by the features of the current system state and the dialog history. If no context is considered, actions might be judged as correct although they were taken in a situation where they were inappropriate or did not make sense.

Not for all attributes a value was specified in the tasks. For example, one task was to find a restaurant that serves duck. For other attributes, like the price range or the location of the restaurant, the user could either invent constraints if she felt this was necessary, or she could state that no specific value was preferred for this attribute. 2 System Model The system model was re-implemented in Matlab, as running the original system from the command line could not be realized. e. not including the sentence parsing and prompt playback.

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