Results 1 to 10 of about 736,333 (253)
Byzantine Agreement with Unknown Participants and Failures [PDF]
2021 IEEE International Parallel and Distributed Processing Symposium (IPDPS), 2021 A set of mutually distrusting participants that want to agree on a common opinion must solve an instance of a Byzantine agreement problem. These problems have been extensively studied in the literature. However, most of the existing solutions assume that the participants are aware of $n$ -- the total number of participants in the system -- and $f ...
Roger Wattenhofer
exaly +3 more sources
Multi-resource Allocation with Unknown Participants [PDF]
2011 Second International Conference on Networking and Computing, 2011 We define the problem of multi-resource allocation, which is an extension of the dining philosophers problem. We apply this problem to systems where participants (here called clients) are unknown. We propose a solution for 2-resource allocation in static networks, then, explain how to modify our protocol to handle client dynamicity. Extend our solution
Stéphane Devismes +2 more
exaly +2 more sources
Knowledge Connectivity Requirements for Solving Byzantine Consensus with Unknown Participants [PDF]
IEEE Transactions on Dependable and Secure Computing, 2018 Consensus is a fundamental building block to solve many practical problems that appear on reliable distributed systems. In spite of the fact that consensus is being widely studied in the context of standard networks, few studies have been conducted in order to solve it in dynamic and self-organizing systems characterized by unknown networks. While in a
Fabiola Greve +2 more
exaly +2 more sources
Less restrictive knowledge connectivity condition for achieving consensus with unknown participants
IET Communications, 2012 For self-organised networks, neither the identity nor the number of processes is known to all participants at the beginning of the computation because no central authority exists to support such context information. Hence, achieving consensus in such networks cannot be accomplished in the ways for traditional fixed networks.
Jichiang Tsai, Che-Cheng Chang
exaly +2 more sources
Volunteers and the Great Unknown: Interview with Clinical-Trial Participants
AMA Journal of Ethics, 2009 First-person reports explain why individuals—both healthy and ill—agree to participate in human-subjects research. Virtual Mentor is a monthly bioethics journal published by the American Medical Association.
exaly +3 more sources
JMIR Public Health and Surveillance, 2021 The American Men’s Internet Survey (AMIS) is an annual web-based behavioral survey conducted in the United States of men who have sex with men (MSM). This rapid surveillance report describes the sixth cycle of data collection (September-December 2018 ...
Wiatrek, Sarah +4 more
doaj +1 more source
Consensus in the Unknown-Participation Message-Adversary Model
CoRR, 2023 We propose a new distributed-computing model, inspired by permissionless distributed systems such as Bitcoin and Ethereum, that allows studying permissionless consensus in a mathematically regular setting. Like in the sleepy model of Pass and Shi, we consider a synchronous, round-by-round message-passing system in which the set of online processors ...
Giuliano Losa, Eli Gafni
openaire +2 more sources
COVID-19 and fertility services in the United Kingdom: a biphasic qualitative study
Reproduction and Fertility, 2021 Recently, fertility services have started resuming since COVID-19 was declared a pandemic, but there remains significant uncertainty in the way this care will be delivered in the United Kingdom.
B Karavadra +3 more
doaj +1 more source
Aging Effects on the Tactile Spatial Sensitivity of Orientation Discrimination by the JVP Domes [PDF]
BIO Web of Conferences, 2023 The JVP domes were widely used to detect the tactile sensitivity reported by participants, which declined with the influence of aging. However, it is still unknown how the decline of tactile spatial sensitivity can influence orientation discrimination ...
Guo Ting, Xu Zhihan, Jin Rongrong
doaj +1 more source
A Lightweight Method for Tackling Unknown Participation Statistics in Federated Averaging
CoRR, 2023 In federated learning (FL), clients usually have diverse participation statistics that are unknown a priori, which can significantly harm the performance of FL if not handled properly. Existing works aiming at addressing this problem are usually based on global variance reduction, which requires a substantial amount of additional memory in a ...
Shiqiang Wang 0001, Mingyue Ji
openaire +3 more sources