database - 如何从关系三元组创建图形数据库？

Question

我想为特定的故事情节构建一个知识图谱，为此我使用 OpenIE 提取了关系三元组 (S,P,O)。现在我想从这些我不知道该怎么做的关系三元组创建图形数据库。所以这是我的问题:
1)我应该使用哪个图形数据库，为什么？
2) 如何从关系三元组创建数据库，或者是否可以在任何图形数据库中从原始关系三元组创建关系图？

例如，假设我选择 Neo4j 作为图形数据库:
关系三胞胎看起来像​​:['Barack Obama', 'was born in', 'Hawaii']
如何从 ['Barack Obama', 'was born in', 'Hawaii'] 以编程方式创建 Neo4j 图形？

Barak Obama and Hawaii are Nodes.
was born in is Relationship

Answer 1

使用 OrientDB，您可以通过以下方式做到这一点:

create class Person extends V
create property Person.name string
create property Person.surname string
insert into Person(name, surname) values ("Barack","Obama")

create class Country extends V
create property Country.name string
insert into Country(name) values ("Hawaii")

create class was_born_in extends E

create edge was_born_in from (select from Person where name = "Barack") to (select from Country where name = "Hawaii")

情况是这样的:

+----+-----+-------+------+-------+---------------+--------------+
|#   |@RID |@CLASS |name  |surname|out_was_born_in|in_was_born_in|
+----+-----+-------+------+-------+---------------+--------------+
|0   |#17:0|Person |Barack|Obama  |[#25:0]        |              |
|1   |#21:0|Country|Hawaii|       |               |[#25:0]       |
+----+-----+-------+------+-------+---------------+--------------+

如果您运行此查询:

select expand(in('was_born_in')) from Country where name = "Hawaii"

你会得到所有住在夏威夷的人

+----+-----+------+------+-------+---------------+
|#   |@RID |@CLASS|name  |surname|out_was_born_in|
+----+-----+------+------+-------+---------------+
|0   |#17:0|Person|Barack|Obama  |[#25:0]        |
+----+-----+------+------+-------+---------------+

希望对你有帮助

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