Replication Schemes for Highly Available Workflow Engines

Schafer, David Richard; Rothermel, Kurt; Tariq, Muhammad

doi:10.1109/tsc.2018.2813368

Cited by 5 publications

(2 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Proof of Data Replication. Proof of data replication [ 67 , 68 , 69 ] is a special type of proof of storage of data that allows a client to verify that it has a unique replica of some data stored on an untrusted server, even if the data is readily available from a public storage source. Proof of data replication is meant to prove that the server has a replica of the data, not that it owns the data.…”

Section: Verifiable Delay Functions Applicationsmentioning

confidence: 99%

Verifiable Delay Function and Its Blockchain-Related Application: A Survey

Liu

Wang

et al. 2022

Sensors

View full text Add to dashboard Cite

The concept of verifiable delay functions has received attention from researchers since it was first proposed in 2018. The applications of verifiable delay are also widespread in blockchain research, such as: computational timestamping, public random beacons, resource-efficient blockchains, and proofs of data replication. This paper introduces the concept of verifiable delay functions and systematically summarizes the types of verifiable delay functions. Firstly, the description and characteristics of verifiable delay functions are given, and weak verifiable delay functions, incremental verifiable delay functions, decodable verifiable delay functions, and trapdoor verifiable delay functions are introduced respectively. The construction of verifiable delay functions generally relies on two security assumptions: algebraic assumption or structural assumption. Then, the security assumptions of two different verifiable delay functions are described based on cryptography theory. Secondly, a post-quantum verifiable delay function based on super-singular isogeny is introduced. Finally, the paper summarizes the blockchain-related applications of verifiable delay functions.

show abstract

Section: Verifiable Delay Functions Applicationsmentioning

confidence: 99%

Verifiable Delay Function and Its Blockchain-Related Application: A Survey

Liu

Wang

et al. 2022

Sensors

View full text Add to dashboard Cite

show abstract

“…[9] developed an optimal Condition Based Maintenance (CBM) strategy for a single machine system during a two-phase failure, a process that includes a normal phase and a delayed time phase. Schaefer, DR. et al [10] proposed replicated execution of workflows to ensure availability in the event of a failure. All of these availability-related tasks are an important part of explaining preventive maintenance.…”

Section: Introductionmentioning

confidence: 99%

Types of Maintenance Based on Uncertain Data Envelope Analysis

Wen

Li²

2022

Symmetry

View full text Add to dashboard Cite

Nowadays, one of the main challenges of marine maintenance is how to select an optimum maintenance strategy for each component of the complex ship machinery system. The uncertainty of the parameters is one of the main difficulties encountered. For example, engineers and experts are always questioning the credibility and integrity of the data collected, and historical maintenance records may also be lost during maintenance. The above data asymmetry will also lead to parameter uncertainty, which directly affects the accuracy of the prediction results. This paper proposes a method for determining maintenance types of ship equipment based on uncertainty theory and the Data Envelopment Analysis (DEA) model. Firstly, this paper constructs an uncertain maintenance optimization model (UMOM) based on the classic Data Envelopment Analysis model. Then, we converted the UMOM into an equivalent deterministic model for easy calculation by the uncertainty theory. Finally, a case study is given to verify this model. The results will conclude that the UMOM can meet the need for a reasonable classification of maintenance types of mechanical equipment in a marine system and provide valuable information for systemic management and storage.

show abstract