Transactions on Compuational Collective Intelligence VI
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Plan recognition is useful in many fields. It is significant to develop efficient recognition algorithms. In this paper, the event relations in plan recognition were deliberatively studied, and a new plan recognition algorithm to predict future actions was presented. The algorithm is based on plan knowledge graph and it integrates the bottom-up and top-down methods to construct solution graph. The algorithm is more powerful and simpler, comparing with other algorithms. The experimental results show that the algorithm is linear-time with the domain knowledge.