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Mixing patterns in large self-organizing networks, such as the Internet, the World Wide Web, social and biological networks are often characterized by degree-degree dependencies between neighbouring nodes. In this paper we propose a new way…

物理与社会 · 物理学 2015-06-04 Nelly Litvak , Remco van der Hofstad

Extensive researches have been dedicated to investigating the performance of real networks and synthetic networks against random failures or intentional attack guided by degree (degree attack). Degree is one of straightforward measures to…

物理与社会 · 物理学 2011-09-26 Hui Wang , Jinyuan Huang , Xiaomin Xu , Yanghua Xiao , Wei Wang

Network regularization is an effective tool for incorporating structural prior knowledge to learn coherent models over networks, and has yielded provably accurate estimates in applications ranging from spatial economics to neuroimaging…

机器学习 · 计算机科学 2020-06-02 Hongyuan You , Furkan Kocayusufoglu , Ambuj K. Singh

Journal rankings are widely used and are often based on citation data in combination with a network perspective. We argue that some of these network-based rankings can produce misleading results. From a theoretical point of view, we show…

数字图书馆 · 计算机科学 2021-06-30 Giacomo Vaccario , Luca Verginer

Bayesian Model Averaging (BMA) is an application of Bayesian inference to the problems of model selection, combined estimation and prediction that produces a straightforward model choice criteria and less risky predictions. However, the…

统计方法学 · 统计学 2017-11-08 Tiago M. Fragoso , Francisco Louzada Neto

Methods for analyzing representations in neural systems have become a popular tool in both neuroscience and mechanistic interpretability. Having measures to compare how similar activations of neurons are across conditions, architectures,…

机器学习 · 计算机科学 2024-12-24 Quentin Guilhot , Michał Wójcik , Jascha Achterberg , Rui Ponte Costa

Diagnosis of breast cancer has been well studied in the past. Multiple linear programming models have been devised to approximate the relationship between cell features and tumour malignancy. However, these models are less capable in…

机器学习 · 计算机科学 2020-02-21 Ke Quan

Recent work has sought to understand the behavior of neural networks by comparing representations between layers and between different trained models. We examine methods for comparing neural network representations based on canonical…

机器学习 · 计算机科学 2019-07-22 Simon Kornblith , Mohammad Norouzi , Honglak Lee , Geoffrey Hinton

For any given neural network architecture a permutation of weights and biases results in the same functional network. This implies that optimization algorithms used to `train' or `learn' the network are faced with a very large number (in…

最优化与控制 · 数学 2022-02-22 Harbir Antil , Thomas S. Brown , Rainald Löhner , Fumiya Togashi , Deepanshu Verma

Neural networks (NN) have achieved state-of-the-art performance in various applications. Unfortunately in applications where training data is insufficient, they are often prone to overfitting. One effective way to alleviate this problem is…

机器学习 · 计算机科学 2016-11-03 Hao Wang , Xingjian Shi , Dit-Yan Yeung

Centrality measures have been defined to quantify the importance of a node in complex networks. The relative importance of a node can be measured using its centrality rank based on the centrality value. In the present work, we predict the…

社会与信息网络 · 计算机科学 2016-11-29 Akrati Saxena , Vaibhav Malik , S. R. S. Iyengar

People believe that depth plays an important role in success of deep neural networks (DNN). However, this belief lacks solid theoretical justifications as far as we know. We investigate role of depth from perspective of margin bound. In…

机器学习 · 计算机科学 2015-12-01 Shizhao Sun , Wei Chen , Liwei Wang , Xiaoguang Liu , Tie-Yan Liu

The problem of inter-rater variability is often discussed in the context of manual labeling of medical images. The emergence of data-driven approaches such as Deep Neural Networks (DNNs) brought this issue of raters' disagreement to the…

图像与视频处理 · 电气工程与系统科学 2020-06-02 Or Shwartzman , Harel Gazit , Ilan Shelef , Tammy Riklin-Raviv

This paper focuses on the Bayesian Network Propensity Score (BNPS), a novel approach for estimating treatment effects in observational studies characterized by unknown (and likely unbalanced) designs and complex dependency structures among…

Margin enlargement over training data has been an important strategy since perceptrons in machine learning for the purpose of boosting the robustness of classifiers toward a good generalization ability. Yet Breiman (1999) showed a dilemma…

机器学习 · 计算机科学 2021-01-05 Weizhi Zhu , Yifei Huang , Yuan Yao

Design of experiments and estimation of treatment effects in large-scale networks, in the presence of strong interference, is a challenging and important problem. Most existing methods' performance deteriorates as the density of the network…

统计方法学 · 统计学 2020-12-15 Preetam Nandy , Kinjal Basu , Shaunak Chatterjee , Ye Tu

We propose a novel measure of degree heterogeneity, for unweighted and undirected complex networks, which requires only the degree distribution of the network for its computation. We show that the proposed measure can be applied to all…

物理与社会 · 物理学 2017-10-03 Rinku Jacob , K. P. Harikrishnan , R. Misra , G. Ambika

With the growing access to administrative health databases, retrospective studies have become crucial evidence for medical treatments. Yet, non-randomized studies frequently face selection biases, requiring mitigation strategies. Propensity…

机器学习 · 统计学 2026-05-07 Alexandre Abraham , Andrés Hoyos Idrobo

Learning to rank with biased click data is a well-known challenge. A variety of methods has been explored to debias click data for learning to rank such as click models, result interleaving and, more recently, the unbiased learning-to-rank…

信息检索 · 计算机科学 2018-04-25 Qingyao Ai , Keping Bi , Cheng Luo , Jiafeng Guo , W. Bruce Croft

Degree assortativity refers to the increased or decreased probability of connecting two neurons based on their in- or out-degrees, relative to what would be expected by chance. We investigate the effects of such assortativity in a network…

适应与自组织系统 · 物理学 2020-04-02 Christian Blasche , Shawn Means , Carlo R. Laing