Planning Landmark Based Goal Recognition Revisited: Does Using Initial State Landmarks Make Sense?

no code implementations • 27 Jun 2023 • Nils Wilken, Lea Cohausz, Christian Bartelt, Heiner Stuckenschmidt

In this paper, we show that it does not provide any benefit to use landmarks that are part of the initial state in a planning landmark based goal recognition approach.

Intrusion Detection

Leveraging Planning Landmarks for Hybrid Online Goal Recognition

no code implementations • 25 Jan 2023 • Nils Wilken, Lea Cohausz, Johannes Schaum, Stefan Lüdtke, Christian Bartelt, Heiner Stuckenschmidt

Furthermore, we show that the utilized planning landmark based approach, which was so far only evaluated on artificial benchmark domains, achieves also good recognition performance when applied to a real-world cooking scenario.

Intrusion Detection

Investigating the Combination of Planning-Based and Data-Driven Methods for Goal Recognition

no code implementations • 13 Jan 2023 • Nils Wilken, Lea Cohausz, Johannes Schaum, Stefan Lüdtke, Heiner Stuckenschmidt

We empirically show that the proposed extension not only outperforms the purely planning-based- and purely data-driven goal recognition methods but is also able to recognize the correct goal more reliably, especially when only a small number of observations were seen.