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Despite echo chambers in social media have been under considerable scrutiny, general models for their detection and analysis are missing. In this work, we aim to fill this gap by proposing a probabilistic generative model that explains…

社会与信息网络 · 计算机科学 2022-08-10 Marco Minici , Federico Cinus , Corrado Monti , Francesco Bonchi , Giuseppe Manco

Content dissemination networks are pervasive in todays Internet. Examples of content dissemination networks include peer-to-peer networks (P2P), content distribution networks (CDN) and information centric networks (ICN). In this paper, we…

Heterogeneous cellular networks (HCN) with embedded small cells are considered, where multiple mobile users wish to download network content of different popularity. By caching data into the small-cell base stations (SBS), we will design…

信号处理 · 电气工程与系统科学 2020-03-30 Jun Li , Youjia Chen , Zihuai Lin , Wen Chen , Branka Vucetic , Lajos Hanzo

We focus on a dense cellular network, in which a limited-size cache is available at every Base Station (BS). In order to optimize the overall performance of the system in such scenario, where a significant fraction of the users is covered…

网络与互联网体系结构 · 计算机科学 2018-06-15 Emilio Leonardi , Giovanni Neglia

Deep Learning has recently become hugely popular in machine learning, providing significant improvements in classification accuracy in the presence of highly-structured and large databases. Researchers have also considered privacy…

密码学与安全 · 计算机科学 2017-09-15 Briland Hitaj , Giuseppe Ateniese , Fernando Perez-Cruz

Understanding information cascades in networks is a fundamental issue in numerous applications. Current researches often sample cascade information into several independent paths or subgraphs to learn a simple cascade representation.…

社会与信息网络 · 计算机科学 2024-03-25 Fanrui Zhang , Jiawei Liu , Qiang Zhang , Xiaoling Zhu , Zheng-Jun Zha

Numerical interactions leading to users sharing textual content published by others are naturally represented by a network where the individuals are associated with the nodes and the exchanged texts with the edges. To understand those…

机器学习 · 计算机科学 2024-02-14 Rémi Boutin , Pierre Latouche , Charles Bouveyron

The rapid expansion of Location-Based Social Networks (LBSNs) has highlighted the importance of effective next Point-of-Interest (POI) recommendations, which leverage historical check-in data to predict users' next POIs to visit.…

信息检索 · 计算机科学 2024-05-24 Jing Long , Guanhua Ye , Tong Chen , Yang Wang , Meng Wang , Hongzhi Yin

Decentralized learning offers a promising approach to crowdsource data consumptions and computational workloads across geographically distributed compute interconnected through peer-to-peer networks, accommodating the exponentially…

机器学习 · 计算机科学 2025-07-10 Tongtian Zhu , Wenhao Li , Can Wang , Fengxiang He

Communication overhead poses an important obstacle to distributed DNN training and draws increasing attention in recent years. Despite continuous efforts, prior solutions such as gradient compression/reduction, compute/communication…

分布式、并行与集群计算 · 计算机科学 2020-08-20 Hao Wang , Jingrong Chen , Xinchen Wan , Han Tian , Jiacheng Xia , Gaoxiong Zeng , Weiyan Wang , Kai Chen , Wei Bai , Junchen Jiang

Caching is envisioned to play a critical role in next-generation content delivery infrastructure, cellular networks, and Internet architectures. By smartly storing the most popular contents at the storage-enabled network entities during…

信息论 · 计算机科学 2019-07-12 Alireza Sadeghi , Gang Wang , Georgios B. Giannakis

Must we trace and block all fake content in a social commerce network so that genuine users may enjoy fake-free information? Such efforts largely fail, because, as we get better at spam detection, spammers use the same advances for…

社会与信息网络 · 计算机科学 2024-03-25 Himangshu Paul , Alexander Nikolaev

It is well-known that online behavior is long-tailed, with most cascaded actions being short and a few being very long. A prominent drawback in generative models for online events is the inability to describe unpopular items well. This work…

社会与信息网络 · 计算机科学 2020-08-18 Quyu Kong , Marian-Andrei Rizoiu , Lexing Xie

Caching the popular multimedia content is a promising way to unleash the ultimate potential of wireless networks. In this paper, we contribute to proposing and analyzing the cache-based content delivery in a three-tier heterogeneous network…

信息论 · 计算机科学 2015-08-13 Chenchen Yang , Yao Yao , Zhiyong Chen , Bin Xia

Exponential growth of social media consumption demands effective user interests-social contents modeling for more personalized recommendation and social media summarization. However, due to the heterogeneous nature of social contents,…

社会与信息网络 · 计算机科学 2018-02-20 Shuang Ma , Chang Wen Chen

Content delivery success in wireless caching helper networks depends mainly on cache-based channel selection diversity and network interference. For given channel fading and network geometry, both channel selection diversity and network…

信息论 · 计算机科学 2016-11-18 Seong Ho Chae , Wan Choi

Influence maximization aims to find a subset of seeds that maximize the influence spread under a given budget. In this paper, we mainly address the data-driven version of this problem, where the diffusion model is not given but needs to be…

社会与信息网络 · 计算机科学 2023-11-21 Yuxin Zuo , Haojia Sun , Yongyi Hu , Jianxiong Guo , Xiaofeng Gao

The deluge of digital information in our daily life -- from user-generated content, such as microblogs and scientific papers, to online business, such as viral marketing and advertising -- offers unprecedented opportunities to explore and…

社会与信息网络 · 计算机科学 2021-03-25 Fan Zhou , Xovee Xu , Goce Trajcevski , Kunpeng Zhang

Recommender systems are crucial to alleviate the information overload problem in online worlds. Most of the modern recommender systems capture users' preference towards items via their interactions based on collaborative filtering…

信息检索 · 计算机科学 2019-07-17 Wenqi Fan , Yao Ma , Dawei Yin , Jianping Wang , Jiliang Tang , Qing Li

Similarity caching systems have recently attracted the attention of the scientific community, as they can be profitably used in many application contexts, like multimedia retrieval, advertising, object recognition, recommender systems and…

网络与互联网体系结构 · 计算机科学 2021-02-10 Michele Garetto , Emilio Leonardi , Giovanni Neglia