3 papers
math.CO2025
Extremal chemical graphs of maximum degree at most 3 for 33 degree-based topological indices
Sébastien Bonte, Gauvain Devillez, Valentin Dusollier +2
We consider chemical graphs that are defined as connected graphs of maximum degree at most 3. We characterize the extremal graphs, meaning those that maximize or minimize 33 degree…
math.CO2024
Extremal Chemical Graphs for the Arithmetic-Geometric Index
Alain Hertz, Sébastien Bonte, Gauvain Devillez +3
The arithmetic-geometric index is a newly proposed degree-based graph invariant in mathematical chemistry. We give a sharp upper bound on the value of this invariant for connected…
cs.IR2023
Addressing the cold start problem in privacy preserving content-based recommender systems using hypercube graphs
Noa Tuval, Alain Hertz, Tsvi Kuflik
The initial interaction of a user with a recommender system is problematic because, in such a so-called cold start situation, the recommender system has very little information abo…