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This paper proposes a post-model selection inference procedure, called targeted undersmoothing, designed to construct uniformly valid confidence sets for a broad class of functionals of sparse high-dimensional statistical models. These…

Statistics Theory · Mathematics 2018-06-08 Christian Hansen , Damian Kozbur , Sanjog Misra

Secure precision time synchronization is important for applications of Cyber-Physical Systems. However, several attacks, especially the Time Delay Attack (TDA), deteriorates the performance of time synchronization system seriously. Multiple…

Cryptography and Security · Computer Science 2024-06-25 Yang Li , Yujie Luo , Yichen Zhang , Ao Sun , Wei Huang , Shuai Zhang , Tao Zhang , Chuang Zhou , Li Ma , Jie Yang , Mei Wu , Heng Wang , Yan Pan , Yun Shao , Xing Chen , Ziyang Chen , Song Yu , Hong Guo , Bingjie Xu

We study the effectiveness of consensus formation in multi-agent systems where there is both belief updating based on direct evidence and also belief combination between agents. In particular, we consider the scenario in which a population…

Multiagent Systems · Computer Science 2020-01-22 Michael Crosscombe , Jonathan Lawry , Palina Bartashevich

Trust-based recommender systems improve rating prediction with respect to Collaborative Filtering by leveraging the additional information provided by a trust network among users to deal with the cold start problem. However, they are…

Information Retrieval · Computer Science 2019-09-05 Liliana Ardissono , Noemi Mauro

Reputation systems concern soft security dynamics in diverse areas. Trust dynamics in a reputation system should be stable and adaptable at the same time to serve the purpose. Many reputation mechanisms have been proposed and tested over…

Social and Information Networks · Computer Science 2019-03-15 Ekaterina Yashkina , Arseny Pinigin , JooYoung Lee , Manuel Mazzara , Akinlolu Solomon Adekotujo , Adam Zubair , Luca Longo

Public resources and services (e.g., datasets, training platforms, pre-trained models) have been widely adopted to ease the development of Deep Learning-based applications. However, if the third-party providers are untrusted, they can…

Cryptography and Security · Computer Science 2024-01-10 Han Qiu , Yi Zeng , Shangwei Guo , Tianwei Zhang , Meikang Qiu , Bhavani Thuraisingham

Veracity of data posted on the microblog platforms has in recent years been a subject of intensive study by professionals specializing in various fields of informatics as well as sociology, particularly in the light of increasing importance…

Social and Information Networks · Computer Science 2021-01-20 Majed Alrubaian , Muhammad Al-Qurishi , Sherif Omar , Mohamed A. Mostafa

Recent research on large language models (LLMs) has demonstrated their ability to understand and employ deceptive behavior, even without explicit prompting. However, such behavior has only been observed in rare, specialized cases and has…

Computation and Language · Computer Science 2025-06-24 Laurène Vaugrante , Francesca Carlon , Maluna Menke , Thilo Hagendorff

Reputation systems seek to infer which members of a community can be trusted based on ratings they issue about each other. We construct a Bayesian inference model and simulate approximate estimates using belief propagation (BP). The model…

Disordered Systems and Neural Networks · Physics 2013-10-01 Andre Manoel , Renato Vicente

When training a machine learning model, it is standard procedure for the researcher to have full knowledge of both the data and model. However, this engenders a lack of trust between data owners and data scientists. Data owners are…

Cryptography and Security · Computer Science 2020-09-24 Will Abramson , Adam James Hall , Pavlos Papadopoulos , Nikolaos Pitropakis , William J Buchanan

The main goal of this paper is to describe an axiomatic utility theory for Dempster-Shafer belief function lotteries. The axiomatic framework used is analogous to von Neumann-Morgenstern's utility theory for probabilistic lotteries as…

Artificial Intelligence · Computer Science 2020-07-16 Thierry Denoeux , Prakash P. Shenoy

This paper proposes a Bayesian modeling approach to address the problem of online fault-tolerant dynamic event region detection in wireless sensor networks. In our model every network node is associated with a virtual community and a trust…

Distributed, Parallel, and Cluster Computing · Computer Science 2016-12-19 Jiejie Wang , Bin Liu

Neural networks provide state-of-the-art results for most machine learning tasks. Unfortunately, neural networks are vulnerable to adversarial examples: given an input $x$ and any target classification $t$, it is possible to find a new…

Cryptography and Security · Computer Science 2017-03-23 Nicholas Carlini , David Wagner

Social networking and micro-blogging services, such as Twitter, play an important role in sharing digital information. Despite the popularity and usefulness of social media, they are regularly abused by corrupt users. One of these nefarious…

Social and Information Networks · Computer Science 2022-10-28 Tanveer Khan , Antonis Michalas

The understanding and prediction of information diffusion processes on networks is a major challenge in network theory with many implications in social sciences. Many theoretical advances occurred due to stochastic spreading models.…

Physics and Society · Physics 2017-01-11 Hongrun Wu , Alex Arenas , Sergio Gómez

In pattern recognition, handling uncertainty is a critical challenge that significantly affects decision-making and classification accuracy. Dempster-Shafer Theory (DST) is an effective reasoning framework for addressing uncertainty, and…

Artificial Intelligence · Computer Science 2024-10-31 Juntao Xu , Tianxiang Zhan , Yong Deng

Due to popularization of internet and e-commerce, more and more people getting involved in online shopping market. A large number of companies have been transferred to the internet where online customers have been increased due to easy…

Cryptography and Security · Computer Science 2024-06-25 Siddiqui Muhammad Yasir , Alam Gir , Jenny Lundberg

Nowadays, peer-to-peer (P2P) streaming systems have become a popular way to deliver multimedia content over the internet due to their low bandwidth requirement, high video streaming quality, and flexibility. However, P2P streaming systems…

Networking and Internet Architecture · Computer Science 2014-08-05 Xin Kang , Yongdong Wu

This paper presents a trust computation for international relations and its calculus, which related to Bayesian inference, Dempster Shafer theory and subjective logic. We proposed a method that allows a trust computation which is previously…

Cryptography and Security · Computer Science 2016-04-05 Mohd Anuar Mat Isa , Ramlan Mahmod , Nur Izura Udzir , Jamalul-lail Ab Manan , Ali Dehghan Tanha

In this paper some initial work towards a new approach to qualitative reasoning under uncertainty is presented. This method is not only applicable to qualitative probabilistic reasoning, as is the case with other methods, but also allows…

Artificial Intelligence · Computer Science 2013-03-08 Simon Parsons , E. H. Mamdani