Online rating platform represents the new trend of online cultural and commercial goods consumption. The user rating data on such platforms are foods for recommender system algorithms. Understanding the evolution patt...
详细信息
The information collected by smart meters may be used in several ways. The collection and analysis of this data needed a substantial amount of time and money for the development of the smart grid. Despite the potentia...
详细信息
Over time, after the advent of the internet, the dissemination of news media has undergone developments ranging from websites to social media. However, news posted on social media is still written by reporters and und...
详细信息
Sale forecasting is considered a key factor for balancing risk of over-stocking and out-of-stock. Its performance is largely influenced by the input it provides to supply chain activities. A competitive advantage for ...
详细信息
Crime has a devastating effect on society and can take many forms, ranging from violent acts such as murder and assault to less serious but still damaging offenses like burglary and vandalism. Crime records are record...
详细信息
A blockchain technology based on encryption algorithm is proposed to address the issue of data theft and leakage in data transactions. Use blockchain to record transaction information and confirm the rights of data as...
详细信息
We are currently seeing a data explosion and witnessing a meteoric rise in database sizes;therefore, with the widespread availability of such large volumes of data, there has arisen an urgent need to transform it into...
详细信息
In recent years, society has been promoting the use of big data to improve our daily lives. At the same time, there is a demand to verify the legitimacy of data. For this reason, there have been many proposals to ensu...
详细信息
ISBN:
(纸本)9781665455336
In recent years, society has been promoting the use of big data to improve our daily lives. At the same time, there is a demand to verify the legitimacy of data. For this reason, there have been many proposals to ensure data integrity by a blockchain consensus. However, the blockchain-based system cannot process a lot of transactions in a short period. Therefore, the blockchain technology cannot be simply applied into systems where large amounts of data are added and updated. Off-chain protocols have been proposed to scale blockchains. They guarantee the integrity of data outside the blockchain and reduce the on-chain replication cost by not directly storing data in the blockchain storage. Meanwhile, an off-chain queueing delay is newly introduced since off-chain transactions (OTXs) are processed in a batch manner by periodically posting the OTX summary data on the underlying blockchain. This delay cannot be ignored, especially in the case of frequently updated data, such as IoT data. In this paper, we propose and analyze a queueing model that considers OTX processing time in order to estimate the mean OTX queueing delay. This analytical values help us to previously determine whether the adopted off-chain approach is effective to ensure the integrity of the given data. In numerical examples, we show how the parameters, such as the OTX batch size and the OTX rate, affect the OTX queueing delay.
作者:
Dong, YiruiSchool of Computing
National University of Singapore COM1 Department of Computer Science 13 Computing Drive Singapore117417 Singapore
This paper designs a new overall architecture of computer vision-based protection and monitoring system. The consistency between the design and DI&C-ISG-04 is analyzed. Three copy storage architecture is used to r...
详细信息
In the last decade, Twitter data has become one of the most valuable research sources for many areas including health, marketing, security, and politics. Researchers prefer Twitter data since it is completely public a...
详细信息
暂无评论