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Consensus mechanisms are the core of any blockchain system. However, the majority of these mechanisms do not target federated learning directly nor do they aid in the aggregation step. This paper introduces Proof of Reasoning (PoR), a novel…

Cryptography and Security · Computer Science 2026-01-27 James Calo , Benny Lo

Extensive research on automatic fake news detection has been conducted due to the significant detrimental effects of fake news proliferation. Most existing approaches rely on a single source of evidence, such as comments or relevant news,…

Social and Information Networks · Computer Science 2024-07-02 Qingxing Dong , Mengyi Zhang , Shiyuan Wu , Xiaozhen Wu

Repeated parameter sharing in federated learning causes significant information leakage about private data, thus defeating its main purpose: data privacy. Mitigating the risk of this information leakage, using state of the art…

Machine Learning · Computer Science 2023-09-12 Zebang Shen , Jiayuan Ye , Anmin Kang , Hamed Hassani , Reza Shokri

Recently, \textit{diffusion history inference} has become an emerging research topic due to its great benefits for various applications, whose purpose is to reconstruct the missing histories of information diffusion traces according to…

Social and Information Networks · Computer Science 2017-08-24 Yanchao Sun , Cong Qian , Ning Yang , Philip S. Yu

Federated learning enables distributed clients to collaborate on training while storing their data locally to protect client privacy. However, due to the heterogeneity of data, models, and devices, the final global model may need to perform…

Machine Learning · Computer Science 2024-06-25 Wolong Xing , Zhenkui Shi , Hongyan Peng , Xiantao Hu , Xianxian Li

News recommendation is critical for personalized news access. Most existing news recommendation methods rely on centralized storage of users' historical news click behavior data, which may lead to privacy concerns and hazards. Federated…

Information Retrieval · Computer Science 2023-05-31 Jingwei Yi , Fangzhao Wu , Chuhan Wu , Ruixuan Liu , Guangzhong Sun , Xing Xie

Multi-behavior recommendation algorithms aim to leverage the multiplex interactions between users and items to learn users' latent preferences. Recent multi-behavior recommendation frameworks contain two steps: fusion and prediction. In the…

Information Retrieval · Computer Science 2023-08-10 Chang Meng , Chenhao Zhai , Yu Yang , Hengyu Zhang , Xiu Li

Consensus is fundamental for distributed systems since it underpins key functionalities of such systems ranging from distributed information fusion, decision-making, to decentralized control. In order to reach an agreement, existing…

Optimization and Control · Mathematics 2018-12-27 Minghao Ruan , Huan Gao , Yongqiang Wang

In the context of distributed fusion estimation, directly transmitting local estimates to the fusion center may cause a privacy leakage concerning exogenous inputs. Thus, it is crucial to protect exogenous inputs against full eavesdropping…

Systems and Control · Electrical Eng. & Systems 2025-12-30 Liping Guo , Jimin Wang , Yanlong Zhao , Ji-Feng Zhang

In recent years, the development of technologies for causal inference with privacy preservation of distributed data has gained considerable attention. Many existing methods for distributed data focus on resolving the lack of subjects…

Methodology · Statistics 2024-01-18 Yuji Kawamata , Ryoki Motai , Yukihiko Okada , Akira Imakura , Tetsuya Sakurai

Distributed privacy-preserving regression schemes have been developed and extended in various fields, where multiparty collaboratively and privately run optimization algorithms, e.g., Gradient Descent, to learn a set of optimal parameters.…

Machine Learning · Computer Science 2022-10-18 Xinlin Leng , Chenxu Li , Weifeng Xu , Yuyan Sun , Hongtao Wang

Federated Learning (FL) is a machine learning paradigm where many local nodes collaboratively train a central model while keeping the training data decentralized. This is particularly relevant for clinical applications since patient data…

Graph neural networks (GNNs) achieve strong performance on relational data, but real-world graphs are often distributed across organizations that cannot share raw data due to privacy and policy constraints. Existing federated GNN methods…

Machine Learning · Computer Science 2026-05-27 Zhishuai Guo , Wenhan Wu , Chen Chen , Lei Zhang , Olivera Kotevska , Ravi K Madduri

We consider a distributed empirical risk minimization (ERM) optimization problem with communication efficiency and privacy requirements, motivated by the federated learning (FL) framework. Unique challenges to the traditional ERM problem in…

Machine Learning · Computer Science 2020-09-24 Antonious M. Girgis , Deepesh Data , Suhas Diggavi , Peter Kairouz , Ananda Theertha Suresh

Proof of work (PoW), the most popular consensus mechanism for Blockchain, requires ridiculously large amounts of energy but without any useful outcome beyond determining accounting rights among miners. To tackle the drawback of PoW, we…

Cryptography and Security · Computer Science 2019-12-30 Xidi Qu , Shengling Wang , Qin Hu , Xiuzhen Cheng

Federated learning enables multiple parties to jointly train learning models without sharing their own underlying data, offering a practical pathway to privacy-preserving collaboration under data-governance constraints. Continued study of…

Machine Learning · Computer Science 2026-01-16 Chun Hei Michael Shiu , Chih Wei Ling

The increasing interest in user privacy is leading to new privacy preserving machine learning paradigms. In the Federated Learning paradigm, a master machine learning model is distributed to user clients, the clients use their locally…

Information Retrieval · Computer Science 2019-01-30 Muhammad Ammad-ud-din , Elena Ivannikova , Suleiman A. Khan , Were Oyomno , Qiang Fu , Kuan Eeik Tan , Adrian Flanagan

In the intricate dance of multi-agent systems, achieving average consensus is not just vital--it is the backbone of their functionality. In conventional average consensus algorithms, all agents reach an agreement by individual calculations…

Multiagent Systems · Computer Science 2024-12-12 Huqiang Cheng , Mengying Xie , Xiaowei Yang , Qingguo Lü , Huaqing Li

We present Latent Theory of Mind (LatentToM), a decentralized diffusion policy architecture for collaborative robot manipulation. Our policy allows multiple manipulators with their own perception and computation to collaborate with each…

Robotics · Computer Science 2025-05-15 Chengyang He , Gadiel Sznaier Camps , Xu Liu , Mac Schwager , Guillaume Sartoretti

Biomedical question answering often requires decisions from retrieved literature whose relevance, quality, and support for candidate answers are uneven. Most retrieval-augmented large language model (LLM) methods feed this literature to the…

Computation and Language · Computer Science 2026-05-19 Chang Zong , Hao Ning , Siliang Tang , Jie Huang , Jian Wan