Entity set expansion method and apparatus

An expansion method and entity set technology, applied in the field of entity set expansion, can solve problems such as limited data volume, unsatisfactory entity set expansion effectiveness, and inability to meet entity set expansion requirements, and achieve the effect of improving effectiveness.

Active Publication Date: 2017-07-14
BEIJING UNIV OF POSTS & TELECOMM
View PDF4 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limited amount of data contained in a single text and web page, the effectiveness o

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Entity set expansion method and apparatus
  • Entity set expansion method and apparatus
  • Entity set expansion method and apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0057] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0058] In order to solve the problems existing in the prior art, the embodiments of the present invention provide a method and device for extending entity sets, which will be described in conjunction with specific embodiments below.

[0059] Firstly, an entity set extension method provided by the embodiment of the present invention is described.

[0060] Such as figure 1 As shown, an entity set extension method provided by an embodiment of the present inventi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

Embodiments of the invention provide an entity set expansion method and apparatus. The method comprises the steps of extracting candidate entities from a target knowledge graph to form a candidate entity set according to a pre-determined seed entity set; determining meta-paths between seed entities from a heterogeneous information network corresponding to the target knowledge graph, wherein each meta-path is a connection path, consisting of an entity type and a relational type, between two node types in the heterogeneous information network, and the two node types are node types corresponding to different seed entities; determining a first importance degree of each meta-path according to a quantity of seed entity pairs connected by each meta-path; according to the first importance degree of each meta-path, determining a second importance degree of each candidate entity in the candidate entity set; and determining the candidate entity with the second importance degree meeting a first preset condition in the candidate entity set as a to-be-expanded entity, and adding the to-be-expanded entity to the seed entity set. By applying the method and the apparatus, effective entity set expansion can be carried out.

Description

technical field [0001] The invention relates to the technical field of entity set extension, in particular to an entity set extension method and device. Background technique [0002] Entity set expansion means that several entity seeds with a specific semantic type (also called a specific common feature) are known, and more entities of the specific semantic type are obtained according to certain rules. For example, given the entity seed set {Beijing, Washington, Moscow} whose specific semantic type is the capital of a country, it is required to find out more capitals of the country, such as finding {Seoul, Tokyo, Kuala Lumpur,...}. At present, entity set expansion has been widely used, for example, dictionary expansion and query suggestion expansion. [0003] The most common method of entity set expansion is to select a data source, process the data source according to certain rules, and determine other entities with the same semantic type as the seed entity as the expansio...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G06F17/30
CPCG06F16/367
Inventor 石川郑玉艳曹晓欢
Owner BEIJING UNIV OF POSTS & TELECOMM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap