In this study, we propose the new location search by use of relative position of landmarks in user's memory. Previous location search methods which are the way of using search keywords or handwritten map require high level Map-Reading skill. On the other hand, our proposal method can search a location map by an intuitive and simple operation. In this paper, the proposal method is called ILS (Incremental Location Search). ILS evaluates the similarity of the shape from the relative position relations of plotted landmarks and real map data. As an experimental result, we confirmed that the map of the location where I expected has been searched by plotting average 4.9 landmarks. In addition, our proposal location search method is found to discover an unexpected landmark. When user wants to recall an ambiguous sightseeing spot which has gone in old days, it seems that this method is useful to search the place.
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