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Although the community structure organization is one of the most important characteristics of real-world networks, the traditional network models fail to reproduce the feature. Therefore, the models are useless as benchmark graphs for…

物理与社会 · 物理学 2014-04-08 Piotr Fronczak , Agata Fronczak , Maksymilian Bujok

This article investigates emergence and complexity in complex systems that can share information on a network. To this end, we use a theoretical approach from information theory, computability theory, and complex networks. One key studied…

信息论 · 计算机科学 2019-03-20 Felipe S. Abrahão , Klaus Wehmuth , Artur Ziviani

The identification of cancer genes is a critical yet challenging problem in cancer genomics research. Existing computational methods, including deep graph neural networks, fail to exploit the multilayered gene-gene interactions or provide…

机器学习 · 计算机科学 2023-05-04 Michail Chatzianastasis , Michalis Vazirgiannis , Zijun Zhang

Network theory has often disregarded many-body relationships, solely focusing on pairwise interactions: neglecting them, however, can lead to misleading representations of complex systems. Hypergraphs represent a suitable framework for…

社会与信息网络 · 计算机科学 2025-07-16 Fabio Saracco , Giovanni Petri , Renaud Lambiotte , Tiziano Squartini

Graph generation is a crucial task in many fields, including network science and bioinformatics, as it enables the creation of synthetic graphs that mimic the properties of real-world networks for various applications. Graph Generative…

机器学习 · 计算机科学 2026-01-21 Salvatore Romano , Marco Grassia , Giuseppe Mangioni

Network (or matrix) reconstruction is a general problem which occurs if the margins of a matrix are given and the matrix entries need to be predicted. In this paper we show that the predictions obtained from the iterative proportional…

统计方法学 · 统计学 2019-09-05 Michael Lebacher , Göran Kauermann

Designing plausible network models typically requires scholars to form a priori intuitions on the key drivers of network formation. Oftentimes, these intuitions are supported by the statistical estimation of a selection of network evolution…

社会与信息网络 · 计算机科学 2019-07-01 Telmo Menezes , Camille Roth

Recent genomic and bioinformatic advances have motivated the development of numerous random network models purporting to describe graphs of biological, technological, and sociological origin. The success of a model has been evaluated by how…

Recent work discovered Emergent Misalignment (EM): fine-tuning large language models on narrowly harmful datasets can lead them to become broadly misaligned. A survey of experts prior to publication revealed this was highly unexpected,…

机器学习 · 计算机科学 2025-06-16 Edward Turner , Anna Soligo , Mia Taylor , Senthooran Rajamanoharan , Neel Nanda

Exponential random graph models (ERGMs) are flexible probability models allowing edge dependency. However, it is known that, to a first-order approximation, many ERGMs behave like Erd\"os-R\'enyi random graphs, where edges are independent.…

概率论 · 数学 2024-01-04 Wen-Yi Ding , Xiao Fang

A biologically plausible low-order model (LOM) of biological neural networks is a recurrent hierarchical network of dendritic nodes/trees, spiking/nonspiking neurons, unsupervised/ supervised covariance/accumulative learning mechanisms,…

最优化与控制 · 数学 2020-12-15 Huachuan Wang , James Ting-Ho Lo

Energy-based models for discrete domains, such as graphs, explicitly capture relative likelihoods, naturally enabling composable probabilistic inference tasks like conditional generation or enforcing constraints at test-time. However,…

For deep neural network accelerators, memory movement is both energetically expensive and can bound computation. Therefore, optimal mapping of tensors to memory hierarchies is critical to performance. The growing complexity of neural…

Biomolecular networks have already found great utility in characterizing complex biological systems arising from pair-wise interactions amongst biomolecules. Here, we review how graph theoretical approaches can be applied not only for a…

分子网络 · 定量生物学 2018-12-03 Heeralal Janwa , Steven E. Massey , Julian Velev , Bud Mishra

Mechanistic network models specify the mechanisms by which networks grow and change, allowing researchers to investigate complex systems using both simulation and analytical techniques. Unfortunately, it is difficult to write likelihoods…

统计方法学 · 统计学 2023-07-19 Jonathan Larson , Jukka-Pekka Onnela

An inverse modeling technique is introduced that combines elements of coupled logistic map models and wavelet analysis for the purpose of analyzing partial synchronization states in high-dimensional systems. Using Embedded Complex Logistic…

适应与自组织系统 · 物理学 2007-05-23 Sandy Shaw

The irreducible complexity of natural phenomena has led Graph Neural Networks to be employed as a standard model to perform representation learning tasks on graph-structured data. While their capacity to capture local and global patterns is…

机器学习 · 计算机科学 2024-02-13 Lorenzo Giusti

We propose a probabilistic framework for modelling and exploring the latent structure of relational data. Given feature information for the nodes in a network, the scalable deep generative relational model (SDREM) builds a deep network…

机器学习 · 统计学 2019-11-06 Xuhui Fan , Bin Li , Scott Anthony Sisson , Caoyuan Li , Ling Chen

We develop a new class of random graph models for the statistical estimation of network formation -- subgraph generated models (SUGMs). Various subgraphs -- e.g., links, triangles, cliques, stars -- are generated and their union results in…

物理与社会 · 物理学 2024-11-27 Arun G. Chandrasekhar , Matthew O. Jackson

Real-world networks, like social networks or the internet infrastructure, have structural properties such as large clustering coefficients that can best be described in terms of an underlying geometry. This is why the focus of the…

社会与信息网络 · 计算机科学 2017-05-10 Karl Bringmann , Ralph Keusch , Johannes Lengler