Distributed Ledger Technology is getting famous day by day. Not only investors, financial organizations and technical personnel are interested in this technology, but also government and nearly every other organizatio...
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ISBN:
(纸本)9781538669488
Distributed Ledger Technology is getting famous day by day. Not only investors, financial organizations and technical personnel are interested in this technology, but also government and nearly every other organization are showing interest in this evolving technology. This technology deals with the settlement of transactions without the need of any third party. But it also requires that different nodes distributed all over the world should have the same state of the data to prevent faulty transactions for which there is a need of consensus algorithms. Many algorithms have already been developed and implemented. This paper discusses some of the algorithms that are widely accepted or talked about and also compares them in terms of centralization, energy consumption, transaction rate etc.
Blockchain has been a breakthrough in the technology since the last decade and is anticipated as the go-to thing due to features presented by it. The features such as secure, immutable, transparent, and anonymous make...
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ISBN:
(数字)9781728157917
ISBN:
(纸本)9781728157924
Blockchain has been a breakthrough in the technology since the last decade and is anticipated as the go-to thing due to features presented by it. The features such as secure, immutable, transparent, and anonymous makes Blockchain technology the frontrunner in the untrustworthy distributed environment. The driving force behind the Blockchain technology are the consensus algorithms that are at the heart of any Blockchain technology. These algorithms determine the security and performance of any Blockchain. The most popular consensus algorithm is the Proof-of-Work which was first used in the Bitcoin. Since then, a number of consensus algorithms have been proposed. This paper presents a brief overview of the Blockchain Technology and popular cryptocurrencies based on Blockchain. Next, the most popular consensus algorithms in the context of Blockchain and cryptocurrencies are discussed.
In 2008, Blockchain was introduced to the world as the underlying technology of the Bitcoin system. After more than a decade of development, various Blockchain systems have been proposed by both academia and industry....
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In 2008, Blockchain was introduced to the world as the underlying technology of the Bitcoin system. After more than a decade of development, various Blockchain systems have been proposed by both academia and industry. This paper focuses on the consensus algorithm, which is one of the core technologies of Blockchain. In this paper, we propose a unified consensus algorithm process model that is suitable for Blockchains based on both the chain and directed acyclic graph(DAG) structure. Subsequently, we analyze various mainstream Blockchain consensus algorithms and classify them according to their design in different phases of the process model. Additionally, we present an evaluation framework of Blockchain consensus algorithms and then discuss the security design principles that enable resistance from different ***, we provide some suggestions for selecting consensus algorithms in different Blockchain application scenarios.
Online algorithm selection concerns the task of designing a dynamic algorithm selector that observes sequentially arriving problem instances of an algorithmic problem class for which it must select a suitable algorith...
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This paper analyzes the SParareal algorithm for stochastic differential equations (SDEs). Compared to the classical Parareal algorithm, the SParareal algorithm accelerates convergence by introducing stochastic perturb...
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We study the greedy (exploitation-only) algorithm in bandit problems with a known reward structure. We allow arbitrary finite reward structures, while prior work focused on a few specific ones. We fully characterize w...
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This paper studies the greedy two-term underapproximation of θ ∈ (0, 1] using reciprocals of numbers from a Fibonacci-type sequence (Equation presented). We find the set of θ whose greedy two-term underapproximatio...
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In this paper, we propose an adaptive forward-backward-forward splitting algorithm for finding a zero of a pseudo-monotone operator which is split as a sum of three operators: the first is continuous single-valued, th...
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We present Coalition Logic, a three-valued modal fixed-point logic designed for declaratively specifying and reasoning about distributed algorithms, such as the Paxos consensus algorithm. Our methodology represents a ...
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We incorporate an iteratively reweighted strategy in the manifold proximal point algorithm (ManPPA) in [12] to solve an enhanced sparsity inducing model for identifying sparse yet nonzero vectors in a given subspace. ...
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