A Framework for Legal Information Retrieval based on Ontology

Dae Woong Jo,Myung Ho Kim 한국컴퓨터정보학회 2015 韓國컴퓨터情報學會論文誌 Vol.20 No.9

Professional knowledge such as legal information is commonly not accessible or cannot be easily understood by the public. By using the legal ontology which is previously established, the legal information retrieval based on ontology is to use for the information retrieval. In this paper, we propose the matters required for the design and develop of the framework for the legal information retrieval based on ontology. The framework is composed of the query conversion engine of SPARQL base for query to OWL ontology and user query type engine and return value refinement engine and web interface engine. The framework does the role as the infrastructure which retrieval the legal ontology effectually and which it serves and can be used in the semantic legal information retrieval service.

Session F : Eukaryotic Gene Structure and Expression : CHARACTERIZATION AND PURIFICATION OF THE UPSTREAM REGULATORY ELEMENT ( URE - )3 BINDING PROTEIN OF THE HUMAN APO E GENE

Dae Woong Jo,Zung Yun Yang,Young Ho Chung,Han Kyum Kim,Young Ki Paik 생화학분자생물학회(구 한국생화학분자생물학회) 1993 추계학술대회집 Vol.- No.-

SPARQL Query Automatic Transformation Method based on Keyword History Ontology for Semantic Information Retrieval

Dae Woong Jo(조대웅),Myung Ho Kim(김명호) 한국컴퓨터정보학회 2017 韓國컴퓨터情報學會論文誌 Vol.22 No.2

In semantic information retrieval, we first need to build domain ontology and second, we need to convert the users’ search keywords into a standard query such as SPARQL. In this paper, we propose a method that can automatically convert the users’ search keywords into the SPARQL queries. Furthermore, our method can ensure effective performance in a specific domain such as law. Our method constructs the keyword history ontology by associating each keyword with a series of information when there are multiple keywords. The constructed ontology will convert keyword history ontology into SPARQL query. The automatic transformation method of SPARQL query proposed in the paper is converted into the query statement that is deemed the most appropriate by the user’s intended keywords. Our study is based on the existing legal ontology constructions that supplement and reconstruct schema and use it as experiment. In addition, design and implementation of a semantic search tool based on legal domain and conduct experiments. Based on the method proposed in this paper, the semantic information retrieval based on the keyword is made possible in a legal domain. And, such a method can be applied to the other domains.

Semi-automatic Legal Ontology Construction based on Korean Language Sentence Patterns

Jo, Dae Woong,Kim, Myung Ho 한국컴퓨터정보학회 2017 韓國컴퓨터情報學會論文誌 Vol.22 No.6

The information related to legislation is massive, and it takes much time and effort to manually build the legislation ontology. Thus, studies on machine-based automated building methods are underway. However, the studies to automatically construct such systems focus on using TBox construction, and those based on automated ABox construction, which corresponds to instances, theoretical systems and data building cases, has not yet been sufficiently developed. Therefore, this paper suggests using a semi-automatic ABox construction method based on sentence patterns to automatically build the ontology for the legislation of the Republic of Korea. Precision and Recall experiments were conducted to further discuss the performance of the suggested method. These experiments provide a comparison between the manual classification, and the triples built by the machines of the legal information by assessing the corresponding numerical values.

온톨로지 기반의 법령 정보 검색 엔진에 관한 연구

조대웅(Dae Woong Jo),서민지(MinJie Seo),김명호(Myung Ho Kim) 한국정보과학회 2015 한국정보과학회 학술발표논문집 Vol.2015 No.6

일반문서의 자동 목차추출을 위한 알고리즘의 관한 연구

조대웅(Dae Woong Jo),최지웅(Ji Woong Choi),김명호(Myung Ho Kim) 한국지능시스템학회 2014 한국지능시스템학회 학술발표 논문집 Vol.24 No.1

링크드 법령 데이터 구축과 LOD 연계

조대웅(Dae Woong Jo),김명호(Myung Ho Kim) 한국컴퓨터정보학회 2016 韓國컴퓨터情報學會論文誌 Vol.21 No.5

Linked Data is a web standard data definition method devised to connect, expand resources with a standardized type. Linked Data built in various areas expands existing knowledge through an open data cloud like LOD(Linked Open Data). A project to link and service existing knowledge through LOD is under way worldwide. However, LOD project in domestic is being participated in a specific field to the level of research. In this paper, we suggests a method to build the area of technical knowledge like legislations in type of Linked Data, and distribute such Linked Data built to LOD. The construction method suggested by this paper divides knowledge of legislations in structural, semantic, and integrated perspective, and builds each of them by converting to Linked Data according to the perspective. Also, such built Linked Legal Data prepares to link knowledge in a standardized type by distributing them onto LOD. Built Linked Legal Data are equipped with schema for link service in various types, and give help increase understand the access type to existing legal information.

비정형 문서의 정보추출을 통한 OWL 온톨로지 구축 시스템의 설계 및 구현

조대웅(Dae Woong Jo),최지웅(Ji Woong Choi),김명호(Myung Ho Kim) 한국컴퓨터정보학회 2014 韓國컴퓨터情報學會論文誌 Vol.19 No.10

정보검색 분야의 발전은 많은 양의 정보를 빠르게 찾아주는 것에서 사람이 원하는 정보를 정확하게 찾아주는 연구 분야로 넓혀가고 있다. 핵심 기술로는 개인화 및 시맨틱 웹 기술을 활용하고 있다. 웹 문서에 대한 자동색인 기술과 처리능력은 연구단계를 넘어 실용 서비스로 나타나고 있다. 하지만 웹 문서 이외의 첨부된 문서 형태에 대한 문서정보검색에 관한 연구는 미진한 상황이다. 본 논문에서는 텍스트, 워드, 한글과 같은 형식으로 작성된 비정형 문서의 본문 내용을 분석하여 OWL 온톨로지로 구축하는 방법에 대해 설명한다. 문서 온톨로지의 TBox를 구축하고, 문서로부터 얻을 수 있는 자원을 선정하여, 구축된 문서 온톨로지의 인스턴스로 활용할 수 있도록 시스템으로 구현한다. 이와 같은 비정형 문서의 온톨로지 자동 구축으로 해당 문서의 시맨틱 기술을 이용한 정보검색 및 문서관리 시스템에서 효과적으로 활용 가능하다. The development of the information retrieval field is evolving to the research field searching accurately for the information from thing finding rapidly a large amount of information. Personalization and the semantic web technology is a key technology. The automatic indexing technology about the web document and throughput go beyond the research stage and show up as the practical service. However, there is a lack of research on the document information retrieval field about the attached document type of except the web document. In this paper, we illustrate about the method in which it analyzed the text content of the unstructured documents prepared in the text, word, hwp form and it how to construction OWL ontology. To build TBox of the document ontology and the resources which can be obtained from the document is selected, and we implement with the system in order to utilize as the instant of the constructed document ontology. It is effectually usable in the information retrieval and document management system using the semantic technology of the correspondence document as the ontology automatic construction of this kind of the unstructured documents.

법령 온톨로지 구축에 관한 연구

조대웅(Dae Woong Jo),김명호(Myung Ho Kim) 한국컴퓨터정보학회 2014 韓國컴퓨터情報學會論文誌 Vol.19 No.11

본 논문에서는 법령 온톨로지 구축을 위해 법령의 구조적 특징과 요소 간의 관계에 대해 분석 정리하고 정리된 내용을 바탕으로 OWL DL 수준의 매핑 규칙을 제안한다. 제안하는 매핑 규칙은 국내 법령 관계의 상-하위 구조, 법령의 고유 속성, 법률 간의 참조 관계와 같은 구조적인 관계의 TBox를 구축하는 방법과 법률 문장을 분석하여 조문규정 별로 나타나는 문장의 패턴 유형을 선별, ABox로 구축될 수 있는 요소를 표현한다. 제안된 매핑 규칙은 일반 텍스트로 설명되고 있는 국내의 법령을 컴퓨터가 이해 가능한 수준의 정보로 변환 되어 법령 지식 베이스로 활용 가능하다. In this paper, we propose an OWL DL mapping rules for construction legal ontology based on the analyzed relationship between the structural features and elements of the statute. The mapping rule to be proposed is the method building the structure of the domestic statute, unique attribute of the statute, and reference relation between laws with TBox, and the legal sentence is analyzed, and the pattern type of the sentence is selected. It expresses with ABox. The proposed mapping rule is transformed to the information in which the computer can process the domestic legal document. It is usable for the legal knowledge base.

OWL 온톨로지 사용을 위한 SPARQL 쿼리 툴

조대웅(Dae-Woong Jo),최지웅(Ji-Woong Choi),김명호(Myung-Ho Kim) 한국컴퓨터정보학회 2009 韓國컴퓨터情報學會論文誌 Vol.14 No.11

시맨틱 웹에서는 RDF, RDFS, OWL과 같은 온톨로지 구축 언어를 이용하여 웹 리소스의 메타데이터를 정의한다. 이러한 시맨틱 웹 기술을 이용한 연구는 에이전트를 기반으로 한 온톨로지의 개념에 대한 관계 및 트리플을 추출하기 위한 목적으로 진행되고 있다. 하지만 에이전트 기반의 온톨로지의 개념에 대한 관계 및 트리플의 추출은 에이전트의 특성상 한정된 쿼리 문을 작성하게 된다. 이는 온톨로지 안의 다른 개념에 대한 관계 및 트리플을 추출하고자 할 때는 유연성이 떨어진다. 온톨로지 정보 자체에 대한 유연성 있는 정보 검색을 하기 위해서는 표준 온톨로지 언어에 접근 및 표준 쿼리 언어의 이용이 가능한 쿼리 툴이 필요 하다. 본 논문에서는 OWL 온톨로지에 HTTP 프로토콜을 이용하여 접근이 가능하고, 쿼리를 할 수 있는 SPARQL 쿼리 툴을 제안한다. 툴에 의해 생성되는 쿼리 결과는 SOAP 메시지 형태로 변환 출력함으로써 웹 서비스를 이용한 접근도 가능하다. Semantic web uses ontology languages such as RDF, RDFS, and OWL to define the metadata on the web. There have been many researching efforts in the semantic web technologies based on an agent for extracting triple and relation about concept of ontology. But the extraction of relation and triple about the concept of ontology based on an agent ends up writing a limited query statement as characteristics of an agent. As for this, there is the less of flexibility when extracting triple and relation about the other concept of ontology. We are need a query tool for flexible information retrieval of ontology that is can access the standard ontology and can be used standard query language. In this paper, we propose a SPARQL query tool that is can access the OWL ontology via HTTP protocol and it can be used to make a query. Query result can be output to the soap message. These operations can be support the web service.