Heba Elbeh

Work place: Faculty of computers and information, Menoufia University, Egypt

E-mail: Heba_Elbeh@yahoo.com


Research Interests: Human-Computer Interaction, Computer systems and computational processes, Planning and Scheduling, Computer Architecture and Organization


Elbeh Heba (1976-), Female, Menoufia University, Egypt, Lecturer, supervisor for Ph.D. candidate, his research directions include, Human Computer Interaction, Tutoring system and Planning system.

Author Articles
Landmarks in Hybrid Planning

By Mohamed Elkawkagy Heba Elbeh

DOI: https://doi.org/10.5815/ijisa.2013.12.02, Pub. Date: 8 Nov. 2013

Although planning techniques achieved a significant progress during recent years, solving many planning problem still difficult even for modern planners. In this paper, we will adopt landmark concept to hybrid planning setting - a method that combines reasoning about procedural knowledge and causalities. Landmarks are a well-known concept in the realm of classical planning. Recently, they have been adapted to hierarchical approaches. Such landmarks can be extracted in a pre-processing step from a declarative hierarchical planning domain and problem description. It was shown how this technique allows for a considerable reduction of the search space by eliminating futile plan development options before the actual planning. Therefore, we will present a new approach to integrate landmark pre-processing technique in the context of hierarchical planning with landmark technique in the classical planning. This integration allows to incorporate the ability of using extracted landmark tasks from hierarchical domain knowledge in the form of HTN and using landmark literals from classical planning. To this end, we will construct a transformation technique to transform the hybrid planning domain into a classical domain model. The methodologies in this paper have been implemented successfully, and we will present some experimental results that give evidence for the consid-erable performance increase gained through planning system.

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