A knowledge map organization query method based on hybrid database

A technology of knowledge graph and organization query, applied in the field of knowledge graph organization and query

Active Publication Date: 2019-01-18
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Claims
  • Application Information

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Problems solved by technology

However, for the information in the graph that does not satisfy the graph data structure, such as how

Method used

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  • A knowledge map organization query method based on hybrid database
  • A knowledge map organization query method based on hybrid database

Examples

Experimental program
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Example

[0047] Query example 1: The entered entity name has entity ambiguity

[0048] 1) Input entity: Qilixiang

[0049] 2) SQL query: query ambiguous vocabulary in MySQL

[0050] 3) The SQL query hits (represents the ambiguity of the entered entity name "Qilixiang"), and returns the ambiguous entity pointing to "Qilixiang":

[0051] Qi Lixiang (Jay Chou released album in 2004)

[0052] Qilixiang (a plant of the genus Rutaceae)

[0053] Qi Lixiang (Songs sung by Jay Chou)

[0054] Qilixiang (Poetry Name, Poem Collection Name)

[0055] Qilixiang (Thailand TV series)

[0056] Qilixiang (Chinese medicine)

[0057] Qilixiang (the novel "Qilixiang")

[0058] ………………

[0059] 4) Entity disambiguation:

[0060] Assume that entity disambiguation is performed according to the context at this time.

[0061] The context is: "Jay Chou's Qilixiang is a song I like very much".

[0062] Therefore, the entity after disambiguation according to the context is: Qilixiang (Songs sung by Jay Chou)

[0063] 5) CQL query:

[006...

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Abstract

The invention relates to a knowledge map organization inquiry method based on a hybrid database, which comprises the following steps: acquiring a triple set in a preset data set; The entity triple setand the relation triple set are distinguished from the triple set; Storing the triple set of entities on Neo4j to obtain the knowledge base with entities; Constructing the index for the knowledge base with entities to obtain the knowledge base with indexes and entities; Storing the relational triple set on Neo4j, obtaining the knowledge base with index, entity and relation; storing the entity ambiguity information on MySQL and constructing the entity ambiguity vocabulary; Storing the constructed entity ambiguity thesaurus in the knowledge base with indexes, entities and relationships, and obtaining the complete knowledge base. The invention combines the respective advantages of a relational database and a graph database, and proposes a knowledge map organization method based on a hybrid database, which is suitable for a general large-scale open domain knowledge map, and improves the query efficiency of the knowledge map while optimizing the storage structure of the knowledge map.

Description

technical field [0001] The present invention specifically relates to a method for organizing and querying knowledge graphs based on a hybrid database. Background technique [0002] As an efficient information organization and retrieval method, knowledge graph has set off a wave of knowledge graph learning since Google proposed it in 2012. Entity extraction, attribute extraction, inter-entity relationship extraction, knowledge reasoning, knowledge representation learning, etc. have become research hotspots, but few literatures mention how to store the bottom layer of graphs, and how to combine storage design query Interface, or even though it is mentioned, the description of this aspect is incomplete and too fragmented. Storage and query usually appear as a whole. Efficient query needs to be supported by a good storage structure, while storage needs to be continuously optimized in combination with the characteristics of query. [0003] Traditional databases, such as relatio...

Claims

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Application Information

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IPC IPC(8): G06F16/242G06F16/2453G06F16/28G06F16/901
Inventor 李新川姚宏陈仁谣李圣文梁庆中郑坤
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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