activity
20222026
most citedShock propagation from the Russia-Ukraine conflict on international multilayer food production network determines global food availability

87 citations · 88 across the 10 of their papers we have counts for

collaborators

11 papers

cs.LG2026

Scaling of Capability and Efficiency at Inference Time in Large Reasoning Models

Moritz Laber, Zohair Shafi, Germans Savcisens +6

Capability and efficiency are two key dimensions of reasoning in large language models (LLMs). Capability refers to the ability to solve a given problem correctly, whereas efficien…

physics.soc-ph2026

Percolation in the Stochastic Block Model

Luca Pieleanu, Moritz Laber, Narayan G. Sabhahit +1

The stochastic block model is a paradigmatic model of networks with community structure. Yet percolation in the model has been studied primarily in cases with a fixed block structu…

physics.soc-ph2026

A Guide to Higher-Order Homophily

Moritz Laber, Brennan Klein

Homophily, the overrepresentation of interactions among similar individuals, and heterophily, the elevated prevalence of interactions among dissimilar ones, are frequently observed…

physics.soc-ph2026

When do neural ordinary differential equations generalize on complex networks?

Moritz Laber, Tina Eliassi-Rad, Brennan Klein

Neural ordinary differential equations (neural ODEs) can effectively learn dynamical systems from time series data, but their behavior on graph-structured data remains poorly under…

cs.LG2026

DeepWeightFlow: Re-Basined Flow Matching for Generating Neural Network Weights

Saumya Gupta, Scott Biggs, Moritz Laber +3

Building efficient and effective generative models for neural network weights has been a research focus of significant interest that faces challenges posed by the high-dimensional…

physics.soc-ph2025

Deterministic construction of typical networks in network models

Narayan G. Sabhahit, Moritz Laber, Harrison Hartle +4

In network science, one often wants to say that a given real-world network appears to come from a particular network model. In statistical physics, the corresponding problem is abo…

cs.IR2025

Identifying and Upweighting Power-Niche Users to Mitigate Popularity Bias in Recommendations

David Liu, Erik Weis, Moritz Laber +2

Recommender systems have been shown to exhibit popularity bias by over-recommending popular items and under-recommending relevant niche items. We seek to understand niche users in…

physics.soc-ph2025

Effects of higher-order interactions and homophily on information access inequality

Moritz Laber, Samantha Dies, Joseph Ehlert +2

The spread of information through socio-technical systems determines which individuals are the first to gain access to opportunities and insights. Yet, the pathways through which i…

physics.soc-ph2025

Multi-strain spreading dynamics under arbitrary transmission kernels

Sagar Kumar, Moritz Laber, Maimuna S. Majumder +2

Compartmental models of epidemic dynamics have long described the propagation of a single, immutable transmissible state through a population via pairwise contact, and multi-strain…

econ.GN2024★ 1 cited

Adaptive Shock Compensation in the Multi-layer Network of Global Food Production and Trade

Sophia Baum, Moritz Laber, Martin Bruckner +3

Global food production and trade networks are highly dynamic, especially in response to shortages when countries adjust their supply strategies. In this study, we examine adjustmen…

econ.GN2022★ 87 cited

Shock propagation from the Russia-Ukraine conflict on international multilayer food production network determines global food availability

Moritz Laber, Peter Klimek, Martin Bruckner +2

Dependencies in the global food production network can lead to shortages in numerous regions, as demonstrated by the impacts of the Russia-Ukraine conflict on global food supplies.…