Communicating Vague Spatial Concepts in Human-GIS Interactions: A Collaborative Dialogue Approach
نویسندگان
چکیده
Natural language requests involving vague spatial concepts are not easily communicated to a GIS because the meaning of spatial concepts depends largely on the contexts (such as task, spatial contexts, and users personal background) that may or may not be available or specified in the system. To address such problems, we developed a collaborative dialogue approach that enables the system and the user to construct shared knowledge about relevant contexts. The system is able to anticipate what contextual knowledge must be shared, and to form a plan to exchange contextual information based on the systems belief on who knows what. To account those user contexts that are not easily communicated by language, direct feedback approach is used to refine the systems belief so that the intended meaning is properly grounded. The approach is implemented as a dialogue agent, GeoDialogue, and is illustrated through an example dialogue involving the communication of the vague spatial concept near.
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Contextualization of Geospatial Database Semantics Written by Administrator Thursday, 19 May 2011 07:40 Last Updated Friday, 04 October 2013 17:19 Human interactions with geographical information are contextualized by problem-solving activities which endow meaning to geospatial data and processing. However, existing spatial data models have not taken this aspect of semantics into account. This ...
متن کاملAbstract: Contextualization of Geospatial Database Semantics
Contextualization of Geospatial Database Semantics Written by Administrator Thursday, 19 May 2011 07:40 Last Updated Friday, 04 October 2013 17:19 Human interactions with geographical information are contextualized by problem-solving activities which endow meaning to geospatial data and processing. However, existing spatial data models have not taken this aspect of semantics into account. This ...
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