KR101220960B1 - Geologic Ontology Service System - Google Patents

Abstract

A geological ontology service system according to the present invention includes a geological ontology service engine supporting query and inference of geological ontology to which a geological map space-time ontology model is applied; A lipid ontology base linked with the lipid ontology service engine and storing the set of lipid ontology; A geological ontology web server interworking with the geological ontology service engine and supporting a geological map access of a user through a geological ontology web application; And a lipid ontology converter for converting the legacy lipid map to RDF in order to store the legacy lipid map in the lipid ontology service engine.

Description

Geologic Ontology Service System

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a geological ontology service system, and more particularly, to a geological ontology service system capable of retrieving geographic information with a query expression of knowledge level.

Recently, as a method for overcoming the limitations of the existing text-based information construction method, a method of managing various data based on ontology has been widely studied and used.

Here, ontology is a term referring to a formal and explicit specification of shared conceptualization, where ontology can be thought of as a kind of dictionary of words and relationships, in which words related to a particular domain are hierarchically represented, In addition, it includes inference rules that can be extended to enable web-based knowledge processing, knowledge sharing between applications, and reuse.

Such ontology is the most central concept of semantic web application, and the language that defines schema and syntax structure to express it is ontology language. For ontology technology, RDF, RDFS, DSML + OIL, OWL, etc. are used. However, it is necessary to build an ontology knowledge base in the geological information field using such ontology.

For example, Patent Application No. 10-2009-0125916 considers various domain characteristics of GIS and develops ontology model by reusing UML design document consisting of layers of upper ontology, measurement, space, and underground spatial information ontology. The method and its system are introduced.

In general, geological maps refer to maps showing the distribution of rocks and the structure of the lipids in color, shape, symbols, etc. A conventional database of geological maps includes inconsistent geological abbreviations, symbols, and data descriptions for geological analysis and retrieval. There was a problem that the result value is not accurate, and the conventional geological map information retrieval service has a problem that the service content and range is limited by providing only information that is limited to user knowledge.

The present invention has been invented to solve the above problems, geology that can search for geographic information with a query representation of knowledge level, and can provide a vast range of information in a graphical form including location and interrelationships. The purpose is to provide an ontology service system.

In order to achieve the above object, a geological ontology service system according to the present invention includes a geological ontology service engine supporting query and inference of geological ontology to which a geological map space-time ontology model is applied; A lipid ontology base linked with the lipid ontology service engine and storing the set of lipid ontology; A geological ontology web server interworking with the geological ontology service engine and supporting a geological map access of a user through a geological ontology web application; And a lipid ontology converter for converting the legacy lipid map to RDF in order to store the legacy lipid map in the lipid ontology service engine.

In addition, the geological ontology service engine is characterized by having a space-time query.

In addition, the lipid ontology base is characterized in that it comprises a rock unit table, geological age unit table and administrative unit table.

In addition, the lipid ontology web server is characterized by displaying the query results and inference results of the lipid ontology on the web in a graphical form.

The geological degree space-time ontology model may further include a rock unit ontology model in which the rock unit class is connected to a subclass of the lipid unit class; A geological unit ontology model in which a geological unit class is linked to a subclass of the geological unit class; And a symbol unit ontology model in which the symbol unit class representing the rock unit class and the geological age unit class are connected as attributes of the geological unit class.

In addition, the rock unit ontology model extracts a rock unit for a spatial object from the spatial domain of the geological map, defines a geological term for the spatial object to generalize the rock unit, and identifies the spatial object as a rock unit classification identifier. Classified by hierarchical classification through (Class IDentifier), characterized in that it is built.

In addition, the rock unit classification identifier may include rock type, solidification, crystallized depth, and metamorphic condition.

In addition, the geological unit ontology model extracts a geological age unit for a time object from the time domain of the geological map, defines a geological term for the temporal object to generalize the geological age unit, and lipidizes the time object. It is characterized by being constructed after classifying and conceptualizing hierarchically through the class IDentifier.

In addition, the geological age unit classification identifier is characterized in that it includes Eon (Eon), Dae (Era) and groups (Period).

In addition, the rock unit ontology model and geological age ontology model is a basic property (Code), code (English term), Korean term (Korean term), abbreviation (abbreviation), RGB value and classification identifier ( CIDs).

The symbol unit ontology model may classify the symbol unit into a geological color, a geological pattern, and a geographic abbreviation through a symbol unit classification identifier.

In addition, the GIS-based geological information retrieval method according to the present invention is characterized by retrieving geological information of a spatiotemporal object using the geological ontology service system according to the present invention.

As described above, according to the geological ontology service system according to the present invention, it is possible to search for geographic information by expressing a knowledge level query and to provide a huge range of information in a graphic form including location and correlation. have.

In addition, according to the present invention, since the spatiotemporal ontology model that conceptualizes the spatiotemporal object of the geological map by the rock unit, the geological age unit, and the symbol unit is applied, the query can be expressed using the optional symbol and the knowledge level.

1 is a block diagram of a geological ontology service system according to the present invention.
2 is a view showing a lipid ontology base according to the present invention.
3 is a view showing a web query using the lipid ontology tree according to the present invention.
4 is a view showing the geological pattern and rock units of the geological map to which the geological map space-time ontology model according to the present invention is applied.
5 is a view showing the geological color and geological pattern of the geological map to which the geological map spatiotemporal ontology model according to the present invention is applied.
FIG. 6 is a diagram illustrating a spatiotemporal query of a geological map to which a geological map spatiotemporal ontology model according to the present invention is applied.
7 is a view showing a process of conceptualizing a rock unit that is a lipid unit according to the present invention.
8 is a view showing a geological map spatiotemporal ontology model according to the present invention.
9 is a view showing the relationship between the geological map spatiotemporal ontology model and the international standard ontology according to the present invention.
10 is a view showing the relationship between the geological feature and geological features (GeologicFeature) according to the present invention.
11 shows the top class of lipid units according to the present invention.
12 is a view showing a rock unit ontology model according to the present invention.
13 is a view showing a geological age unit ontology model according to the present invention.
14 shows an instance of a geological map spatiotemporal ontology model according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, it should be noted that the same components or parts among the drawings denote the same reference numerals whenever possible. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted so as not to obscure the subject matter of the present invention.

1 is a block diagram of a geological ontology service system according to the present invention.

As illustrated in FIG. 1, the geological ontology service system according to the present invention includes a geological ontology service engine 100, a geological ontology base 200, a geological ontology web server 300, and a geological ontology converter 600.

The geological ontology service engine 100 supports the inquiry and inference of the geological ontology to which the geological map space-time ontology model is applied.

Specifically, the geological ontology service engine 100 may be composed of Jena / ARQ, which is a support engine of SPARQL RDF query, and generally, Jena / ARQ does not support SPARQL query. In order to support GeoSPARQL, which is a standard, the Jena / ARQ engine may be extended and configured. Accordingly, the geological ontology service engine 100 may include a spatiotemporal query for querying.

7 is a view showing a process of conceptualizing a rock unit that is a lipid unit according to the present invention.

On the other hand, the geological map spatiotemporal ontology model is an ontology model for a geological unit constructed by conceptualizing at least one lipid unit from a geological map. As shown in Fig. 7, a rocky homogeneous minimum unit can be extracted and conceptualized and then constructed.

Specifically, since existing geological maps are a mixture of strata and rock strata units, first the minimum rock units of natural language terms are extracted at the data level, and the place names in the minimum rock units through text analysis at the information level. Generalize rock units by excluding mineral names, colors, etc. Through this, the concept of rock units can be extracted at the knowledge level, and finally an ontology model for rock units can be constructed.

2 is a view showing a lipid ontology base according to the present invention.

The geological ontology base 200 may be linked with the geological ontology service engine 100 to store a set of geological ontology, wherein the geological ontology base 200 is a rock unit table as shown in FIG. 2. And geological age unit tables and administrative unit tables.

Specifically, the lipid ontology base 200 may be implemented as an MSSQL DB for a web service. The lipid ontology base 200 may be designed by inserting the contents of the space-time ontology model into the redefined lipid map table. At this time, the pattern and color of the rock can be purified using the symbol unit of the space-time ontology model.

The geological ontology web server 300 may be linked with the geological ontology service engine 100 and support the geological map access of the user through the geological ontology web application 400. The geological ontology web server 300 may be the geological ontology. Query results and inference results can be displayed on the web in graphical form.

3 is a view showing a web query using the lipid ontology tree according to the present invention.

Here, the geological ontology application 400 is a supporting software that allows a user to directly search or manage the geological map in a desktop or web environment. The geological ontology application 400 may be a Java or Java server page (JSP) software. Can be implemented and provided to the user by an Internet service. For example, as shown in FIG. 3, when clicking quartzite in the left tree of the web screen, the parent term, child terminology and ontology tree related to quartzite are expanded and In addition, images, similar terms and details can be displayed.

The geological ontology converter 600 may convert the legacy geological map to RDF in order to store the legacy geological map 500 in the geological ontology service engine 100, where the legacy geological map 500 is a relational database. Or it can be saved in the form of a shape file.

On the other hand, the Internet based on the system according to the present invention can be built by providing web access to the ontology system and designing relational functions, databases and system structures.

Here, each system function can be designed for graphical fonts, external image links, ontology representations in databases, information retrieval and tree views in a database.

Specifically, the system can be designed to support colors and fonts, fonts of geological terms can be inserted, colors can be applied to terms in the tree, and geological terms can be linked to external images. In addition, ontology representation functions can be designed to handle graphical displays in a variety of ways by designing complex databases that include correlations such as relationships between upper and lower relationships and related terms. It can be designed to search English and Chinese geological terms.

On the other hand, the geological map spatiotemporal ontology model applied to the geological ontology service system according to the present invention includes not only a set of vocabulary for expressing the conceptual objects in the rock unit and the temporal objects in the geological era, but also a content and structural system. It can be defined as. In addition, the ontology model has a color symbol and a pattern symbol corresponding to each spatiotemporal object in a 1: 1 manner, and a strict classification identifier is assigned between upper classes and lower classes in each domain, so that the classification between the upper and lower classes is clear. There is this.

4 is a view showing the geological pattern and rock units of the geological map to which the geological map space-time ontology model according to the present invention is applied, and FIG. 5 is a view showing the geological color and lipid pattern of the geological map to which the geological map space-time ontology model is applied according to the present invention.

The geological pattern and the rock unit of the geological map to which the geological degree space-time ontology model according to the present invention is applied are shown in FIG. 4, and the geological color and the geological pattern of the geological map are shown in FIG. 5, for example, in FIG. 5. The illustrated geological maps map South Korea to geological space-time units and geological symbol units again. FIG. 5 (a) shows spatial mapping of a rock unit, which is a spatial unit, to South Korea, and FIG. 5 (c). Is spatially mapped geological age unit with respect to South Korea, Figure 5 (b) is a rock pattern added to the spatially mapped geological map.

On the other hand, the geological ontology service system according to the present invention, as described above, it is possible to perform a time, space and space-time search with a domestic database, it is possible to perform a space and time query as in the following example.

FIG. 6 is a diagram illustrating a spatiotemporal query of a geological map to which a geological map spatiotemporal ontology model according to the present invention is applied.

Specifically, (a) of FIG. 6 is a search for a rock strata unit which is a spatial query, FIG. 6 (c) is a search for a solid strata unit which is a temporal query, and FIG. Cross search of strata units. Here, the bar graph shows the total area obtained by statistical query for all rocks in South Korea by rock type and geological age.

Meanwhile, the geological map spatiotemporal ontology model according to the present invention may include a rock unit ontology model, a geological age unit ontology model, and a symbol unit ontology model.

The rock unit ontology model is a model in which a rock unit class is connected to a subclass of a lipid unit class.

The rock unit ontology model extracts a rock unit for a spatial object from the spatial domain of the geological map, generalizes the rock unit by defining a geological term for the spatial object, and classifies the spatial object as a rock unit classification identifier. After the hierarchical classification and conceptualization, the rock unit ontology model may generalize the minimum rock unit extracted from the spatial domain into a rock unit through text analysis, and then classify the rock unit. It can be constructed by hierarchically classifying and conceptualizing the spatial object through an identifier.

The rock unit classification identifier may include a rock type, a solidification, a crystallized depth, and a metamorphic condition.

8 is a view showing a geological map spatiotemporal ontology model according to the present invention.

In the rock unit ontology model, as shown in FIG. 7, symbols S, I, and M are assigned to classification identifiers of sedimentary rocks and sediments, igneous rocks, and metamorphic rocks, respectively, and subclass rocks of each rock are configured to follow the same identification information. As a result, a hierarchical classification model can be formed.

12 is a view showing a rock unit ontology model according to the present invention.

Specifically, in the rock unit ontology model, the rock unit may be classified into sedimentary rocks and sediments (S), igneous rocks (I), and metamorphic rocks (M) according to rock types, as shown in FIGS. 8 and 12.

The sedimentary rocks and sediments (S) are classified into sedimentary rocks and unconsolidated sediments according to solidification, and the igneous rocks (I) are volcanic rocks according to crystallized depth. ), Hypabyssal rock and Plutonic rock, and the metamorphic rock M is a contact metamorphic rock, a regional metamorphic rock and a structural rock according to metamorphic conditions. Can be classified as Tectonite.

Here, the volcanic rocks may be classified into glass volcanic rock, igneous sedimentary rock, and crystalline volcanic rock according to the crystallization position. The rocks present in the geological maps can be compared and analyzed to show a classification field table for crystalline palliative rocks, and the atrial rocks can include all rocks marked as rock in the geological map.

The geological age unit ontology model is a model in which a geological age unit class is connected to a subclass of the geological unit class.

The geological unit ontology model extracts a geological age unit for a time object from the time domain of the geological map, defines a geological term for the temporal object to generalize the geological age unit, and classifies the time object as a geological unit. It can be constructed after classifying hierarchically and classifying through class IDentifier. Specifically, the geological age ontology model generalizes the minimum geological age unit extracted from the time domain to geological age through text analysis. Afterwards, the time object may be hierarchically classified and conceptualized through the geological unit classification identifier.

Here, the geological age unit classification identifier may include Eon, Era, and Period.

In the geological age ontology model, as illustrated in FIG. 8, Eon, Era, and Period are assigned to the geological age classification identifiers, and each geological age subclass is assigned the same identification information. It can be configured to conform to the hierarchical classification model. Here, the geological age is extracted from geological age objects of the 1st, 2nd, and 3rd classification items by referring to the geological age of Korea (Geological Society of Korea) and the geology dictionary, and in the future in consideration of international geological age standards. Can be extended.

13 is a view showing a geological age unit ontology model according to the present invention.

Specifically, in the geological age unit ontology model, as shown in FIGS. 8 and 13, the geological age unit is a Cryptozoic Eon (same as Suncambria) and Phanerozoic by the classification identifier Eon. Eon), wherein the Cryptozoic Eon may be classified into an epoch of the epoch and protozoa, and the Phanerozoic Eon is a paleozoic, mesozoic and neoplasia by the classification identifier Era. The Paleozoic, Mesozoic and Neoplasia can be categorized into subclasses by the group (Period), which is a classification identifier.

Since the geological unit ontology model inherits the geologicTime of W3C, which will be described later, each GeologicTime can be represented and searched by time-related attributes such as before, overlaps, and after. Thus, for example, an ontology query search can be performed to find a lipid feature that is faster than the Cretaceous and later than the Triice, by performing a query between lipid features.

On the other hand, the rock unit ontology model and geological age ontology model has a basic property (Code), English term (English term), Korean term (Korean term), abbreviation (abbreviation), RGB value and classification identifier, respectively (CIDs).

The symbol unit ontology model is a model in which the rock unit class and the symbol unit class representing the geological age unit class are connected as attributes of the geological unit class.

In detail, the symbol unit ontology model may classify the symbol unit into a geological color, a geological pattern, and a geographic abbreviation through a symbol unit classification identifier.

On the other hand, the geospatial space-time ontology model can provide usability and functionality by extending the time feature of W3C defined in the international standard and the Geometry Feature Ontology supported by the GeoSPARQL of OGC.

9 is a view showing the relationship between the geological map spatiotemporal ontology model and the international standard ontology according to the present invention.

Specifically, the glo: GeologicFeature, which is a geographic feature, is designed as a subclass of ogc: Feature defined in the OGC, as shown in FIG. Here, the geometry may be represented by an OGC Well Known Text String.

In addition, the GeologicFeature may support to express or retrieve information by spatial relationship properties such as disjoint, intersects, within, and the like based on spatial information of the geometry. Here, glo: GeologicTime is a class for representing time information of a specific geology and may be designed as a subclass of ProperInterval class, which is a subclass of TemporalEntity class of W3C Time Ontology.

10 is a view showing the relationship between the geological feature and geological features (GeologicFeature) according to the present invention.

Meanwhile, as shown in FIG. 10, the geological feature class is represented by three components of Geometry, which is spatial information of ogc: OGC, GeologicTimeUnit, which is geological age information including W3C temporal information, and GeologicRocUnit, which represents a geological form. A spatiotemporal ontology feature, wherein the geological degree class may be defined as a set including a plurality of geological feature classes satisfying a specific subject.

11 shows the top class of lipid units according to the present invention.

In addition, the geological unit class is the highest class representing the geological age and the geological rock, and the geological unit class may be linked to the geological symbol unit class through the hasSymbology attribute to represent the geological map, where the geological symbol unit class is a standard Manner, six representation attributes used in the geological map, i.e. code, English term, Korean term, geological abbreviation, RGB value and classification identifier.

On the other hand, the geological degree instance (Instance) is composed of geological feature instances, each geological feature instance may include a geological instance, a geological rock unit instance and a geological age unit instance.

14 shows an instance of a geological map spatiotemporal ontology model according to the present invention.

For example, as shown in FIG. 14, a GLF0012 'instance of a lipid feature may have a GEO0012 instance of type ogc: Geometry in the lipid domain by the ogc: hasGeometry attribute, and also the lipid domain by the glo: hasRock attribute. You can have an IntermediateDyke instance of glo: IntermediateDyke at, as well as a JurassicPeriod instance of glo: JurassicPeriod in the lipid domain by the glo: hasTime attribute.

Here, a GEO0012 instance of type ogc: Geometry can have a polygon of type WKT in the domain of OGC, and IntermediateDyke instance and JurassicPeriod instance have 6 such as code, English term, Korean term, classification identifier, geographic abbreviation, and RGB in the geological domain. Attributes may be included, where each value may be expressed as an ellipse.

As described above with reference to the drawings illustrating a geological ontology service system according to the present invention, the present invention is not limited by the embodiments and drawings disclosed herein, but to those skilled in the art within the technical scope of the present invention Of course, various modifications can be made.

100: geological ontology service engine
200: Lipid ontology base
300: Geological Ontology Web Server
400: Geological Ontology Web Application
500: Legacy Geological Map
600: geological ontology converter

Claims (12)

A geological ontology service engine comprising an extended Jena / ARQ engine equipped with a spatiotemporal query and supporting SPARQL RDF query to support the query and inference of the geological ontology to which the geological map spatiotemporal ontology model is applied;
A geological ontology base linked with the geological ontology service engine and storing the geological ontology set including a rock unit table, a geological age unit table, and an administrative unit table;
It is linked with the geological ontology service engine and supports the user's geological map access through the geological ontology web application that can make web queries using the geological ontology tree. The geological ontology query results and inference results are graphically displayed on the web. A geological ontology web server to display on the web; And
And a lipid ontology converter for converting the legacy geological map stored in a relational database or shape file into the lipid ontology service engine to convert the legacy geological map into an RDF.
The geological map spatiotemporal ontology model,
The rock unit class is linked to the subclass of the geological unit class, and the basic properties include code, English term, Korean term, abbreviation, RGB Value, and classification identifiers (CIDs). A rock unit ontology model, which is represented and retrieved by a spatial relational attribute that includes and includes a subclass of each rock, configured to follow the same identification information and formed into a hierarchical classification model;
The geological age unit class is linked to subclasses of the geological unit class, and the basic attributes are code, English term, Korean term, abbreviation, RGB value, and classification identifier (CIDs). Geological unit ontology model, which is represented and retrieved by a temporal relationship attribute including), each subclass of geological age is configured to follow the same identification information and is formed as a hierarchical classification model; And
The symbol unit class representing the rock unit class and the geological age unit class is connected to the attributes of the geological unit class, and the symbol unit is divided into geological color and geological pattern through a symbol unit class identifier. And a symbol unit ontology model classified into Geological Pattern and Geological Abbreviation.
The rock unit ontology model extracts a minimum rock unit of a natural language term for a spatial object from a spatial domain of a geological map, and names and mineral names in the minimum rock unit through text analysis of the minimum rock unit. , Generalizing the rock unit by excluding color, and classifying the spatial object as a rock unit classification identifier including rock type, solidification, crystallized depth, and metamorphic condition. Class IDentifier) classifies and conceptualizes hierarchically.
The geological unit ontology model extracts a minimum geological age unit for a time object from the time domain of the geological map, generalizes the geological age unit through text analysis of the minimum geological age unit, and derives the time object from It is constructed after classifying and conceptualizing hierarchically through class IDentifier including Eon, Era, and Period.
The geological map spatiotemporal ontology model,
The GeologicFeature class, which has the rock unit class and the geological age unit class as attributes, is designed as a subclass of the feature class (ogc: Feature) defined in OGC's Geometry Feature ontology, and the geological feature class is defined by the hasGeometry attribute. Information of the geological feature class is expressed or retrieved by a spatial relation attribute having a geometry representing spatial information,
The geological age unit class is designed as a subclass of the ProperInterval class defined in the W3C's Time ontology, and the geological age unit class inherits the geologicTime of the W3C so that the information of the geological age unit class is expressed or retrieved by a time relation property. Geological ontology service system, characterized in that.
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