| 摘要 |
A trigger query obtaining apparatus includes a graph creating unit, a score calculation unit, a trigger query obtaining unit, and an output unit. The graph creating unit creates a minimal directed graph having nodes each corresponding to a search query included in one of two search logs, and a link directed from one node to another node. The score calculation unit calculates a score for each node of a directed graph composed of minimal directed graphs, using a seed query. The trigger query obtaining unit obtains a trigger query that is a search query corresponding to a node having a score that satisfies a condition. The output unit outputs the trigger query. |
