CN110765217A - Knowledge graph editing method based on multi-dimensional space - Google Patents
Knowledge graph editing method based on multi-dimensional space Download PDFInfo
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- CN110765217A CN110765217A CN201911010167.5A CN201911010167A CN110765217A CN 110765217 A CN110765217 A CN 110765217A CN 201911010167 A CN201911010167 A CN 201911010167A CN 110765217 A CN110765217 A CN 110765217A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/28—Databases characterised by their database models, e.g. relational or object models
- G06F16/284—Relational databases
- G06F16/288—Entity relationship models
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/30—Information retrieval; Database structures therefor; File system structures therefor of unstructured textual data
- G06F16/36—Creation of semantic tools, e.g. ontology or thesauri
- G06F16/367—Ontology
Abstract
The invention discloses a knowledge graph editing method based on a multidimensional three-dimensional space, which comprises the following steps: establishing a knowledge graph: generating a knowledge concept level architecture by using an ER diagram, extracting concept elements and generating a corresponding relation of an ontology, an entity and an instance; and (3) storage of the knowledge graph: storing the constructed knowledge graph; application of the knowledge graph: editing and applying the stored knowledge graph; the invention has the beneficial effects that: the knowledge is displayed in a layered mode, the relation among the body, the entity and the example is accurately described, when other systems construct a knowledge base based on the map, the body, the entity and the example of the knowledge can be displayed, and a user can acquire related information of the knowledge point more comprehensively; the extended module is additionally arranged, so that the attributes of the body, the entity and the instance can be respectively extended, and the redundancy of data is reduced.
Description
Technical Field
The invention belongs to the technical field of knowledge maps, and particularly relates to a knowledge map editing method based on a multidimensional three-dimensional space.
Background
The knowledge map is a series of different graphs displaying the relationship between the knowledge development process and the structure, and is used for describing knowledge resources and carriers thereof by using a visualization technology, mining, analyzing, constructing, drawing and displaying knowledge and the mutual relation between the knowledge resources and the carriers.
The knowledge graph is a modern theory which achieves the aim of multi-discipline fusion by combining theories and methods of applying subjects such as mathematics, graphics, information visualization technology, information science and the like with methods such as metrology introduction analysis, co-occurrence analysis and the like and utilizing a visualized graph to vividly display the core structure, development history, frontier field and overall knowledge framework of the subjects. It can provide practical and valuable reference for subject research.
Specifically, the knowledge graph is a modern theory which achieves the purpose of multi-discipline fusion by combining theories and methods of applying subjects such as mathematics, graphics, information visualization technology, information science and the like with methods such as metrology introduction analysis, co-occurrence analysis and the like and utilizing a visualized graph to vividly display the core structure, development history, frontier field and overall knowledge framework of the subjects. The method displays the complex knowledge field through data mining, information processing, knowledge measurement and graph drawing, reveals the dynamic development rule of the knowledge field, and provides a practical and valuable reference for subject research.
The existing knowledge graph has the following defects:
1. only knowledge ontologies cannot describe the relationship between ontologies, entities, instances;
2. knowledge is not displayed hierarchically.
Disclosure of Invention
The invention aims to provide a knowledge graph editing method based on a multidimensional three-dimensional space, which aims to solve the problem that only a knowledge body provided in the background technology can not describe the relationship among the body, an entity and an example; there is no problem of hierarchical display of knowledge.
In order to achieve the purpose, the invention provides the following technical scheme: a knowledge graph editing method based on multi-dimensional stereo space comprises the following steps:
the method comprises the following steps: establishing a knowledge graph: generating a knowledge concept level architecture by using an ER diagram, extracting concept elements and generating a corresponding relation of an ontology, an entity and an instance;
step two: and (3) storage of the knowledge graph: storing the constructed knowledge graph;
step three: application of the knowledge graph: and editing and applying the stored knowledge graph.
As a preferred technical scheme of the invention, when the knowledge graph is stored, the knowledge graph also needs to be screened.
As a preferred technical scheme of the invention, the storage of the knowledge graph is one of an RDF storage format and a graph database.
As a preferred technical solution of the present invention, the graphic database is neo4 j.
As a preferred technical scheme of the invention, adjacent knowledge points in the knowledge graph are displayed in a tree graph.
As a preferred technical solution of the present invention, the knowledge points are polyhedron structures, and vertices of the polyhedron structures are attributes of the knowledge points.
As a preferred technical solution of the present invention, the system further includes an extension module, and the extension module is used for extending the attributes of the ontology, the entity, and the instance.
Compared with the prior art, the invention has the beneficial effects that:
(1) the knowledge is displayed in a layered mode, the relation among the body, the entity and the example is accurately described, when other systems construct a knowledge base based on the map, the body, the entity and the example of the knowledge can be displayed, and a user can acquire related information of the knowledge point more comprehensively;
(2) the extended module is additionally arranged, so that the attributes of the body, the entity and the instance can be respectively extended, and the redundancy of data is reduced.
Drawings
FIG. 1 is a schematic diagram of a multi-dimensional spatial knowledge-graph structure according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1, the present invention provides a technical solution: a knowledge graph editing method based on a multidimensional stereo space comprises the following steps:
the method comprises the following steps: establishing a knowledge graph: generating a knowledge concept level architecture by using an ER diagram, extracting concept elements and generating a corresponding relation of an ontology, an entity and an instance;
step two: and (3) storage of the knowledge graph: storing the constructed knowledge graph;
step three: application of the knowledge graph: and editing and applying the stored knowledge graph.
In this embodiment, it is preferable that the knowledge graph is further screened when being stored.
In this embodiment, the storage of the knowledge graph is preferably in an RDF storage format.
In this embodiment, it is preferable that adjacent knowledge points in the knowledge-graph are displayed in a tree-shaped graph.
In this embodiment, preferably, the knowledge point is a polyhedron structure, and a vertex of the polyhedron structure is an attribute of the knowledge point.
In this embodiment, it is preferable that the system further includes an extension module, where the extension module is configured to extend attributes of the body, the entity, and the instance, and when different attributes are extended, it is necessary to determine whether the attribute coincides with an existing attribute, and only a brand-new attribute is allowed to be added, so that redundancy of data is reduced.
The figures are embodied as follows: a knowledge point network of a three-dimensional space is expressed, and a connecting line is the relation of knowledge points; viewed from a three-dimensional coordinate Z axis, 3 different planes exist, each plane represents different abstract levels, the first level is a body layer, the second layer is a solid layer, the third layer is an example layer, and corresponding knowledge points in three-dimensional spaces have a corresponding relation of 'body-entity-example';
in the knowledge graph (single layer), a plane formed by a part of knowledge point networks is intercepted, the structure between knowledge points can be seen as a tree structure in the graph, the round points of the tree structure are knowledge points, different round knowledge points can be seen in the graph, and the characteristic description is that for a certain student individual, knowledge points mastered by the student individual, knowledge points learned by the student individual and knowledge points needing to be strengthened can be reflected in a visual mode.
In the single knowledge point structure, it can be seen that the knowledge point is actually a polyhedron structure, and the vertex of the polyhedron structure is the attribute of the knowledge point.
Example 2
Referring to fig. 1, the present invention provides a technical solution: a knowledge graph editing method based on a multidimensional stereo space comprises the following steps:
the method comprises the following steps: establishing a knowledge graph: generating a knowledge concept level architecture by using an ER diagram, extracting concept elements and generating a corresponding relation of an ontology, an entity and an instance;
step two: and (3) storage of the knowledge graph: storing the constructed knowledge graph;
step three: application of the knowledge graph: and editing and applying the stored knowledge graph.
In this embodiment, it is preferable that the knowledge graph is further screened when being stored.
In this embodiment, the knowledge graph is preferably stored as a graph database.
In this embodiment, the graphic database is preferably neo4 j.
In this embodiment, it is preferable that adjacent knowledge points in the knowledge-graph are displayed in a tree-shaped graph.
In this embodiment, preferably, the knowledge point is a polyhedron structure, and a vertex of the polyhedron structure is an attribute of the knowledge point.
In this embodiment, it is preferable that the system further includes an extension module, where the extension module is configured to extend attributes of the body, the entity, and the instance, and when different attributes are extended, it is necessary to determine whether the attribute coincides with an existing attribute, and only a brand-new attribute is allowed to be added, so that redundancy of data is reduced.
The figures are embodied as follows: the top diagram describes a knowledge point network of a three-dimensional space, and the connection lines are the relation of knowledge points; viewed from a three-dimensional coordinate Z axis, 3 different planes exist, each plane represents different abstract levels, the first level is a body layer, the second layer is a solid layer, the third layer is an example layer, and corresponding knowledge points in three-dimensional spaces have a corresponding relation of 'body-entity-example';
in the knowledge map (single layer), a partial enlarged view of the top map is obtained, a plane formed by partial knowledge point networks is cut out, the structure between knowledge points can be seen to be a tree structure, the round points of the tree structure are knowledge points, the knowledge points with different circles can be seen in the map, and the characteristic description is directed to the knowledge points mastered by a student individual, the knowledge points learned by the student individual and the knowledge points needing to be strengthened can be reflected in a visual mode.
The structure of a single knowledge point is locally amplified in a knowledge map (single layer), so that the knowledge point is actually a polyhedron structure, and the vertex of the polyhedron structure is the attribute of the knowledge point.
Some properties of the multidimensional stereo-spatial knowledge map:
for the student: the visual knowledge structure that can convey out clearly helps the systematization of student's knowledge point, and the real-time demonstration of system learns the progress, lets the student audio-visual understanding study progress and weak point, and the progress can also provide positive feedback for the student, and the achievement sense of study is very strong.
For teachers: the visual knowledge structure is greatly helpful for teachers to research and develop knowledge and expand knowledge points, and teachers can learn a subject knowledge system from a global view to discover and explore new knowledge points and new relations among the knowledge points.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A knowledge graph editing method based on multi-dimensional space is characterized in that: the method comprises the following steps:
the method comprises the following steps: establishing a knowledge graph: generating a knowledge concept level architecture by using an ER diagram, extracting concept elements and generating a corresponding relation of an ontology, an entity and an instance;
step two: and (3) storage of the knowledge graph: storing the constructed knowledge graph;
step three: application of the knowledge graph: and editing and applying the stored knowledge graph.
2. The method for editing a knowledge graph based on a multidimensional stereo space according to claim 1, wherein: when the knowledge graph is stored, the knowledge graph also needs to be screened.
3. The method for editing a knowledge graph based on a multidimensional stereo space according to claim 1, wherein: the storage of the knowledge graph is one of an RDF storage format and a graph database.
4. The method for editing a knowledge graph based on a multidimensional stereo space according to claim 3, wherein: the graphic database is neo4 j.
5. The method for editing a knowledge graph based on a multidimensional stereo space according to claim 1, wherein: the adjacent knowledge points in the knowledge graph are shown in a tree graph.
6. The method for editing a knowledge graph based on a multidimensional stereo space according to claim 5, wherein: the knowledge points are in the structure of a polyhedron, and the vertexes of the polyhedron structure are the attributes of the knowledge points.
7. The method for editing a knowledge graph based on a multidimensional stereo space according to claim 1, wherein: the system also comprises an extension module which is used for extending the attributes of the ontology, the entity and the instance.
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| CN201911010167.5A CN110765217A (en) | 2019-10-23 | 2019-10-23 | Knowledge graph editing method based on multi-dimensional space |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112966057A (en) * | 2021-04-22 | 2021-06-15 | 上海深杳智能科技有限公司 | Knowledge graph construction method, knowledge graph construction system, information processing system, terminal and medium |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112966057A (en) * | 2021-04-22 | 2021-06-15 | 上海深杳智能科技有限公司 | Knowledge graph construction method, knowledge graph construction system, information processing system, terminal and medium |
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