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cs.DS2026
Homomorphism Indistinguishability Beyond Graphs: Relational Weisfeiler--Leman and Hypertree Width
Panagiotis Aivasiliotis, Andreas Göbel, Matthias Lanzinger +1
The Weisfeiler--Leman (WL) algorithm is one of the most influential heuristics for the graph isomorphism problem. The expressive power of WL has been extensively studied in the con…
cs.AI2026
COMPOSITE-Stem
Kyle Waters, Lucas Nuzzi, Tadhg Looram +20
AI agents hold growing promise for accelerating scientific discovery; yet, a lack of frontier evaluations hinders adoption into real workflows. Expert-written benchmarks have prove…