Search Results for author: Leif Eriksson

Found 4 papers, 0 papers with code

Solving Quantified Boolean Formulas with Few Existential Variables

no code implementations10 May 2024 Leif Eriksson, Victor Lagerkvist, George Osipov, Sebastian Ordyniak, Fahad Panolan, Mateusz Rychlicki

The quantified Boolean formula (QBF) problem is an important decision problem generally viewed as the archetype for PSPACE-completeness.

Improved Algorithms for Allen's Interval Algebra by Dynamic Programming with Sublinear Partitioning

no code implementations25 May 2023 Leif Eriksson, Victor Lagerkvist

Using this technique we obtain a major improvement of $O^*((\frac{cn}{\log{n}})^{n})$ for Allen's interval algebra.

A Fast Algorithm for Consistency Checking Partially Ordered Time

no code implementations25 May 2023 Leif Eriksson, Victor Lagerkvist

Partially ordered models of time occur naturally in applications where agents or processes cannot perfectly communicate with each other, and can be traced back to the seminal work of Lamport.

A Multivariate Complexity Analysis of Qualitative Reasoning Problems

no code implementations30 Sep 2022 Leif Eriksson, Victor Lagerkvist

Qualitative reasoning is an important subfield of artificial intelligence where one describes relationships with qualitative, rather than numerical, relations.

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