G - Physics – 10 – L
Patent
G - Physics
10
L
G10L 15/22 (2006.01) G06F 17/20 (2006.01) G10L 15/18 (2006.01)
Patent
CA 2493261
A system and method are disclosed for controlling the flow of a dialog within a spoken dialog service dialog management module. The method uses a dialog disambiguation rooted tree, the rooted tree having a root node, nodes descending from the root nodes organized in categories and leaf nodes. The method comprises gathering input from a user to match with at least one node and node condition, wherein a first prompt from the dialog manager relates to a focus root node, lighting at least one relevant node according to the received user input, generalizing by attempting to select a new focus node further from a current focus node by: (1) assigning a node as a new focus node if it is the only lit direct descendent of a focus node after the lighting step; and (2) assigning a lowest common ancestor node as a new focus node if there are multiple descendent nodes that are lit and the step of assigning a new node a new focus if it is the only lit direct descendent does not apply. This method enables improved disambiguation of user intent in a spoken dialog service.
Di Fabbrizio Giuseppe
Lewis Charles Alfred
At&t Corp.
Kirby Eades Gale Baker
LandOfFree
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