"Constructing Knowledge Atlas Neo4j" _ Natural Language Processing

neo4j download Download neo4j. Then access via http://localhost:7474

1, create the entity file CSV, you need to include a unique ID (in the way of UUID1)

2, create a relationship CSV, through the entity ID connected;

Import:

Entity 1:

LOAD CSV with HEADERS from "File:///new_entity1.csv" Asline

MERGE (Comp:company{name:line.name,code:line.code})

Entity 2:

LOAD CSV with HEADERS from "File:///new_entity2.csv" Asline

MERGE (Comp:company{name:line.name}) Relationship:

LOAD CSV with HEADERS from ' file:///gudong_relation2.csv ' as Line

Match (from:company{id:line.from_id}), (to:company{id:line.to_id})

Merge (from)-[r: main shareholder {shareholding:line.property}]-> (to)

Query all nodes and relationships:

Start n = node (*)

return n

Find:

MATCH (com:company{name: "Vanke a"})-[main shareholder]-(Com2:company) return com,com2

deleting nodes and relationships

MATCH (n)-[r]-()

DELETE N,r

Simply delete so node:

Match (N)

Delete N