Author

Riku Ala-Laurinaho

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Open access 2026

ReqTLo: An Ontology for Exchanging and Managing Bounded Temporal Requirements for Simulation-Based Verification and Validation

Complex cyber-physical systems (CPS) are an interdisciplinary combination of subsystems that are increasingly developed in collaborative settings, where specialized suppliers contribute components built with different tools and proprietary models. A growing share of this development is digitized, carried out through ad...

Haitham Al-Shami, Riku Ala-Laurinaho, Miro Eklund et al. · IEEE Access · 0 citations

#large language models Book Open access Oct 2026

OntoSTL: Canonical Knowledge Graph Representation of Signal Temporal Logic Requirements

OntoSTL defines a bidirectional transformation between STL and OWL and applies equivalence-preserving canonicalization rules, including implication elimination, supported Negation Normal Form (NNF) conversion, Boolean simplification, associative flattening, and deterministic operand ordering.

Haitham Al-Shami, Riku Ala-Laurinaho, Xin-Yi Tu et al. · Proceedings of the ACM/IEEE... · 0 citations