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Calibration and tuning ZeroDAO's reputation system algorithm, using circles user data and relational data, as a control group to calculate Betweenness , ArticleRank , PageRank , Closeness , Harmonic Centrality , Eigenvector Centrality , Degree Centrality , statistical data from various algorithms during the iteration.

This is the back-end repository for socircles and other related:

Website: https://socircles.info

Front-end: https://github.com/ZeroDAO/socircles-ui

Management: https://github.com/ZeroDAO/socircles-admin

Features

• Using the graph database neo4j to store user and relational data and to run the control group algorithm.
• mysql storage of various information during the TIR calculation.
• Using the task system to synchronise data from theGraph.
• Using the task system to calculate reputation values in steps and batches and to save information on the results.
• Automatic completion of calculation tasks, fallback and recovery functions after failed task execution.
• Calculation of various centrality algorithms for the user;
• Find the various weight values of users in circles;
• Find the shortest path between circles users;

The purpose of this system is to validate, tune and present algorithms, so it is not efficient. You can actually use neo4j directly to compute reputation values, or if you need more speed, you can interface to a computational engine such as spark.

Preparation

1. Install neo4j (2.2.x)

install neo4j community server;

2. Install neo4j Plugins

install graph-data-science, APOC ，Take care to choose the correct version;;

3. Configuration neo4j Plugins

• neo4j/conf/neo4j.conf Add at the end：

dbms.security.procedures.unrestricted=apoc.*, gds.*
dbms.security.procedures.whitelist=apoc.*, gds.*

• neo4j/conf/apoc.conf

apoc.export.file.enabled=true

Configuration

The configuration file is located insrc/config/config.local.ts

1. Configure mysql

>=5.7 Versions，node (>=12.x)，Automatic initialisation and data import on first start-up

config.orm = {
    type: 'mysql',
    host: '127.0.0.1',
    port: 3306,
    username: 'root',
    password: '',
    database: 'cool-admin',
    synchronize: true,
    logging: true,
}

2. Configure neo4j

config.neo4j = {
    client: {
      url: 'bolt://127.0.0.1',
      username: 'neo4j',
      password: '',
    },
  }

Get Started

Local development

$ npm i
$ npm run dev
$ open http://localhost:8001/

build

$ npm start
$ npm stop

Commands

• Use npm run lint to do code style checks.
• Use npm test to do Execute unit tests.

Thanks

midway cool-admin