Landmarks: Soering’s Legacy

Abstractions += Landmarks

ions += Landmarks Carmel Domshlak and Michael Katz and Sagi Lefler Faculty of Industrial Engineering and Management Technion—Israel Institute of Technology Haifa, Israel

Landmarks Revisited

Landmarks for propositional planning tasks are variable assignments that must occur at some point in every solution plan. We propose a novel approach for using landmarks in planning by deriving a pseudo-heuristic and combining it with other heuristics in a search framework. The incorporation of landmark information is shown to improve success rates and solution qualities of a heuristic planner....

Determination of Landmarks and Reliability Criteria for Landmarks

The navigation task is a very demanding application for mobile users. The algorithms of present software solutions are based on the established methods of car navigation systems and thus exhibit some inherent disadvantages: findings in spatial cognition research have shown that human users need landmarks for an easy and successful wayfinding. Typically, however, an object is not a landmark per ...

Ordered Landmarks in Planning

Many known planning tasks have inherent constraints concerning the best order in which to achieve the goals. A number of research efforts have been made to detect such constraints and to use them for guiding search, in the hope of speeding up the planning process. We go beyond the previous approaches by considering ordering constraints not only over the (top-level) goals, but also over the sub-...

Navigation using natural landmarks