Tag：transaction
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Time：2021-9-19
“I, XXX, pay…” have you ever received such a message? In fact, the history of fraud using information technology may be far beyond your imagination. Even before the birth of the Internet, the “Nigerian Prince” scam of fraud through paper letters and faxes was widely spread all over the world. Today, through various channels, online […]
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Time：2021-9-3
background The current blockchain applications and underlying technology platforms are in full bloom, but each chain in mainstream blockchain applications is still an independent and vertical closed system. In the business application scenario with increasingly complex business forms, there is a lack of unified interconnection mechanism between chains, which greatly limits the liquidity of digital […]
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Time：2021-9-1
Move is a new programming language, which provides a secure and programmable foundation for Libra blockchain. Accounts in the Libra blockchain are containers for any number of move resources and move modules. Each transaction submitted to the Libra blockchain is encoded by a transaction script written in move language. This transaction script can call the […]
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Time：2021-8-20
Original link:http://tecdat.cn/?p=22732 Association rule mining is an unsupervised learning method, which mines rules from transaction data. It helps to identify relationships and items in the dataset. In this article, I will explain how to extract association rules in R.The association rule model is applicable to transaction data. An example of transaction data can be a […]
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Time：2021-8-16
DActor Introduction Dactor framework is designed based on the idea of collaborative process. It can support synchronous and asynchronous code at the same time, simplify the development of online asynchronous code, develop asynchronous code with the idea of synchronous code, and take into account the high concurrency and non blocking of asynchronous code, the readability […]
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Time：2021-7-30
The transaction itself will have an impact on the market, especially a large number of transactions in a short time will affect the price of financial assets. There is usually a difference between the market price when an order arrives and the execution price of the order. This difference is usually called transaction cost. In […]
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Time：2021-7-25
Smart contract is equivalent to a small program deployed and running on the blockchain node. In order to access the functions of the contract, the front-end web page can be accessed directly through ether JS or Web3 JS class library through RPC Protocol. The figure above shows the basic process of web call contract. React […]
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Time：2021-7-24
At the end of the previous article “I. how to ensure the uniqueness of Das accounts”, we mentioned the still existing cell competition problem. The specific problems are as follows: It is assumed that there are three accounts a.bit, b.bit and z.bit registered on the chain, and now there are two users who want to […]
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Time：2021-6-23
It’s said that the shock body is very eye-catching. I’ll try it today At the beginning of all the articles in this series, I will summarize the contents of the corresponding articles in one or two sentences. If you are interested in this topic, you can continue to read on. If you are not interested, […]
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Time：2021-6-18
preface This project is mainly used to assist quantitative trading simulation test. At present, it supports simple data simulation of trading, query, account balance and position randomness. Later, it will add process, strategic, market data simulation and so on. It can reduce the real transaction environment and test cost that developers need. Sharing beforePHP efficient […]
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Time：2021-6-8
preface WonderTraderAs a quantitative development and trading platform, in addition to the extreme speed experience brought by the C + + bottom layer, the most important and core killer isCombination disk management。Wondertrader’s combination disk refers to the combination disk configured by a series of strategies. The strategy in a combination disk can be different strategy […]
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Time：2021-6-7
What is the relationship between blockchain technology and finance and other real economy? What are the case scenarios of blockchain technology used in the actual business of Yixin? On the afternoon of December 6, the monthly CEO Forum was held in Beijing as scheduled, and nearly 100 colleagues attended. In this session, we invited Xiang […]
