63 research outputs found
CroCoDai: A Stablecoin for Cross-Chain Commerce
Decentralized Finance (DeFi), in which digital assets are exchanged without
trusted intermediaries, has grown rapidly in value in recent years. The global
DeFi ecosystem is fragmented into multiple blockchains, fueling the demand for
cross-chain commerce. Existing approaches for cross-chain transactions, e.g.,
bridges and cross-chain deals, achieve atomicity by locking assets in escrow.
However, locking up assets increases the financial risks for the participants,
especially due to price fluctuations and the long latency of cross-chain
transactions. Stablecoins, which are pegged to a non-volatile asset such as the
US dollar, help mitigate the risk associated with price fluctuations. However,
existing stablecoin designs are tied to individual blockchain platforms, and
trusted parties or complex protocols are needed to exchange stablecoin tokens
between blockchains.
Our goal is to design a practical stablecoin for cross-chain commerce.
Realizing this goal requires addressing two challenges. The first challenge is
to support a large and growing number of blockchains efficiently. The second
challenge is to be resilient to price fluctuations and blockchain platform
failures. We present CroCoDai to address these challenges. We also present
three prototype implementations of our stablecoin system, and show that it
incurs small execution overhead
Multiobjective Logistics Optimization for Automated ATM Cash Replenishment Process
In the digital transformation era, integrating digital technology into every
aspect of banking operations improves process automation, cost efficiency, and
service level improvement. Although logistics for ATM cash is a crucial task
that impacts operating costs and consumer satisfaction, there has been little
effort to enhance it. Specifically, in Vietnam, with a market of more than
20,000 ATMs nationally, research and technological solutions that can resolve
this issue remain scarce. In this paper, we generalized the vehicle routing
problem for ATM cash replenishment, suggested a mathematical model and then
offered a tool to evaluate various situations. When being evaluated on the
simulated dataset, our proposed model and method produced encouraging results
with the benefits of cutting ATM cash operating costs
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