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Friendship prediction is an important task in social network analysis (SNA). It can help users identify friends and improve their level of activity. Most previous approaches predict users' friendship based on their historical records, such…

社会与信息网络 · 计算机科学 2014-02-18 Erheng Zhong , Evan Wei Xiang , Wei Fan , Nathan Nan Liu , Qiang Yang

We introduce and study a general model of social network formation and evolution based on the concept of preferential link formation between similar nodes and increased similarity between connected nodes. The model is studied numerically…

物理与社会 · 物理学 2007-05-23 George C. M. A. Ehrhardt , Matteo Marsili , Fernando Vega-Redondo

Finding community structures in networks is important in network science, technology, and applications. To date, most algorithms that aim to find community structures only focus either on unipartite or bipartite networks. A unipartite…

物理与社会 · 物理学 2014-09-16 Chang Chang , Chao Tang

Complex systems are often characterized by distinct types of interactions between the same entities. These can be described as a multilayer network where each layer represents one type of interaction. These layers may be interdependent in…

社会与信息网络 · 计算机科学 2018-08-21 Caterina De Bacco , Eleanor A. Power , Daniel B. Larremore , Cristopher Moore

We address the problem of link reciprocity, the non-random presence of two mutual links between pairs of vertices. We propose a new measure of reciprocity that allows the ordering of networks according to their actual degree of correlation…

无序系统与神经网络 · 物理学 2007-05-23 Diego Garlaschelli , Maria I. Loffredo

This paper studies the problem of predicting missing relationships between entities in knowledge graphs through learning their representations. Currently, the majority of existing link prediction models employ simple but intuitive scoring…

计算与语言 · 计算机科学 2019-11-20 Xiang Kong , Xianyang Chen , Eduard Hovy

We consider the link prediction problem in a partially observed network, where the objective is to make predictions in the unobserved portion of the network. Many existing methods reduce link prediction to binary classification problem.…

机器学习 · 统计学 2016-02-23 Bopeng Li , Sougata Chaudhuri , Ambuj Tewari

The task of predicting future relationships in a social network, known as link prediction, has been studied extensively in the literature. Many link prediction methods have been proposed, ranging from common neighbors to probabilistic…

社会与信息网络 · 计算机科学 2016-07-26 Ruthwik R. Junuthula , Kevin S. Xu , Vijay K. Devabhaktuni

Temporal networks have gained significant prominence in the past decade for modelling dynamic interactions within complex systems. A key challenge in this domain is Temporal Link Prediction (TLP), which aims to forecast future connections…

人工智能 · 计算机科学 2025-03-03 Jiafeng Xiong , Ahmad Zareie , Rizos Sakellariou

Many real world, complex phenomena have underlying structures of evolving networks where nodes and links are added and removed over time. A central scientific challenge is the description and explanation of network dynamics, with a key test…

物理与社会 · 物理学 2014-08-15 Catherine A. Bliss , Morgan R. Frank , Christopher M. Danforth , Peter Sheridan Dodds

The dynamics of collaboration networks of firms follow a life-cycle of growth and decline. That does not imply they also become less resilient. Instead, declining collaboration networks may still have the ability to mitigate shocks from…

物理与社会 · 物理学 2021-02-24 Frank Schweitzer , Giona Casiraghi , Mario V. Tomasello , David Garcia

Networks extracted from social media platforms frequently include multiple types of links that dynamically change over time; these links can be used to represent dyadic interactions such as economic transactions, communications, and shared…

社会与信息网络 · 计算机科学 2016-09-14 Alireza Hajibagheri , Gita Sukthankar , Kiran Lakkaraju

Link prediction methods are frequently applied in recommender systems, e.g., to suggest citations for academic papers or friends in social networks. However, exposure bias can arise when users are systematically underexposed to certain…

机器学习 · 计算机科学 2021-06-15 Shantanu Gupta , Hao Wang , Zachary C. Lipton , Yuyang Wang

The past few years has witnessed the great success of recommender systems, which can significantly help users find relevant and interesting items for them in the information era. However, a vast class of researches in this area mainly focus…

信息检索 · 计算机科学 2012-04-10 Xiao Hu , Chuibo Chen , Xiaolong Chen , Zi-Ke Zhang

Spatial networks, in which nodes and edges are embedded in space, play a vital role in the study of complex systems. For example, many social networks attach geo-location information to each user, allowing the study of not only topological…

社会与信息网络 · 计算机科学 2014-03-05 Nicholas D. Larusso , Brian E. Ruttenberg , Ambuj Singh

Detecting community structure is fundamental to clarify the link between structure and function in complex networks and is used for practical applications in many disciplines. A successful method relies on the optimization of a quantity…

物理与社会 · 物理学 2007-05-23 Santo Fortunato , Marc Barthelemy

We propose a scalable temporal latent space model for link prediction in dynamic social networks, where the goal is to predict links over time based on a sequence of previous graph snapshots. The model assumes that each user lies in an…

社会与信息网络 · 计算机科学 2016-07-26 Linhong Zhu , Dong Guo , Junming Yin , Greg Ver Steeg , Aram Galstyan

Oversampling is a common characteristic of data representing dynamic networks. It introduces noise into representations of dynamic networks, but there has been little work so far to compensate for it. Oversampling can affect the quality of…

社会与信息网络 · 计算机科学 2015-08-12 Benjamin Fish , Rajmonda S. Caceres

The task of link prediction for knowledge graphs is to predict missing relationships between entities. Knowledge graph embedding, which aims to represent entities and relations of a knowledge graph as low dimensional vectors in a continuous…

人工智能 · 计算机科学 2022-04-26 Yanhui Peng , Jing Zhang

A simple and accurate relationship is demonstrated that links the average shortest path, nodes, and edges in a complex network. This relationship takes advantage of the concept of link density and shows a large improvement in fitting…

物理与社会 · 物理学 2013-04-24 Reginald D. Smith