온톨로지 기반 사용자 제시 조건을 이용한 시맨틱 서비스 조합

정한민(Hanmin Jung),이미경(Mikyoung Lee),류범종(Beom-Jong You) 한국콘텐츠학회 2009 한국콘텐츠학회논문지 Vol.9 No.10

현재까지 제안된 웹 서비스나 웹 서비스에 시맨틱 마크업이 추가된 시맨틱 웹 서비스와 달리 시맨틱 서비스 (Semantically-operated Service)는 온톨로지를 이용하여 검색 기능 또는 추론 기능을 제공하는 서비스로 정의할 수 있다. 온톨로지 기반이므로 URI (Uniform Resource Identifier)를 지원하며 온톨로지 스키마에 정의된 클래스와 속성 (Property)을 사용하여 미리 정의된 작업을 수행한다. 시맨틱 서비스는 입력 인자가 온톨로지에 정의된 클래스들을 포함하므로 시맨틱 서비스 조합 (Pipelining) 시에 반드시 온톨로지를 참조할 필요가 있다. 본 연구는 시맨틱 정보 위주의 사용자 제시 조건을 입력받아 시맨틱 브로커를 이용하는 방식으로 시맨틱 서비스 관리 서버에 등록된 시맨틱 서비스들 내의 온톨로지 정보와 관리정보를 참조하여 조건에 맞는 시맨틱 서비스를 조합하는 방법을 제안한다. 사용자 제시 조건으로는 입력 인스턴스, 출력 클래스, 시각화 유형 (Visualization Type), 시맨틱 서비스명, 속성명이 있다. 시맨틱 서비스 조합은 사용자 제시 조건을 기반으로 모든 과정이 자동적으로 이루어지며, 그 결과는 복합 시맨틱 서비스와 일부 워크플로우를 포함하는 시맨틱 서비스 파이프라인들로서 사용자에게 순위화되어 제시된다. 사용자는 시맨틱 브로커에 의해 제시된 시맨틱 서비스 파이프라인들을 실행해 봄으로써 원하는 시맨틱 서비스 조합을 찾을 수 있다. 결국, 본 연구를 통해 개발된 시맨틱 서비스 조합 시스템은 다양한 곳에서 개발된 시맨틱 서비스들을 자동으로 조합하여 새로운 시맨틱 서비스를 개발하고자 하는 서비스 기획자들을 지원하는데 획기적인 도움을 줄 것으로 기대한다. Semantically-operated services, which is different from Web services or semantic Web services with semantic markup, can be defined as the services providing search function or reasoning function using ontologies. It performs a pre-defined task by exploiting URI, ontology classes, and ontology properties. This study introduces a method for pipelining semantically-operated services based on a semantic broker which refers to ontologies and service description stored in a service manager and invokes by user constraints. The constraints consist of input instances, an output class, a visualization type, service names, and properties. This method provides automatically-generated service pipelines including composit services and a simple workflow to the user. The pipelines provided by the semantic broker can be executed in a fully-automatic manner to find a set of meaningful semantic pipelines. After all, this study would epochally contribute to develop a portal service by ways of supporting human service planners who want to find specific composit services pipelined from distributed semantically-operated services.

SWEFT: Semantic Web Service Engine for Telecommunication – An Automatic Discovery and Composition through Genetic Approach

Lakshmana Kumar Ramasamy,M.S.Irfan Ahmed 보안공학연구지원센터 2016 International Journal of u- and e- Service, Scienc Vol.9 No.9

The web service developed by telecommunication domain is ineffective since they are demonstrated by syntactic description rather than semantic. The motivation of the research is to have semantic description with existing web services, and provides discovery, composition and invocation of web services automatically. The objective is to identify the discovery and composition concerns and devise a compositional approach that covers all concerns. So a new prototype named Semantic Web Service Engine for Telecommunication which automatically discover and composite a web service was proposed, enables semantic through upper ontology and maps Web Service Description Language to Ontology Web Language-Semantic. For composition, a genetic algorithm was proposed which can solve problems with great distinctiveness. This approach automatically discovers and generates the required composite semantic web services and considers all identified concerns concurrently, improves the accuracy for the service discovery and unifies the semantic representation of telecommunications without human intervention.

도메인 온톨로지 기반의 비즈니스 프로세스 관리를 위한 시스템 설계

황치곤,정계동 융복합지식학회 2019 융복합지식학회논문지 Vol.7 No.3

Web services have been proposed as a standard for distributed computing to prevent overlapping development of information services within the same business domain and to make common use of services that have been developed and used. However, Web services can benefit from redundant development and reduced development costs by using services registered with service brokers. On the other hand, this has the disadvantage of not being standardized on the attribute information required by the service processes or there are no services that meet various business objectives. It also creates a problem of property inconsistency not only in the provision of services but also in the data used between This is being done by applying ontology, which can be handled automatically, to compensate for the problem that the complexity of registering and connecting to a Web service is difficult to apply in a complex business environment. By describing resources and their relationships in a specific field, Ontology supports semantic web services and provides an infrastructure to support semantic interoperability of Web services. As such, research on semantic web services to apply ontology to web services has been actively carried out. In this paper, a semantic web service-based service integration system is designed to support the use of stored data, including services developed previously 동일한 비즈니스 도메인 내 정보서비스의 중복된 개발을 방지하고, 기존 개발되어 활용 중인 서비스를 공통으로 활용하기 위한 분산 컴퓨팅의 표준으로서 웹 서비스가 제안되었다. 그러나 웹 서비스는 서비스 브로커에 등록된 서비스를 이용함으로써 중복개발, 개발비용절감이라는 장점을 얻을 수 있다. 반면, 이것은 서비스 프로세스들이 요구하는 속성정보가 규격화되지 않거나 다양한 비즈니스 목적에부합되는 서비스가 존재하지 않는다는 단점이 있다. 또한 이것은 서비스 제공뿐만 아니라 서비스들 간에 사용하는 데이터에서도 속성불일치의 문제가 일으킨다. 이것은 이와 같은 웹서비스 등록과 서비스 연결의 복잡성은 복잡한 비즈니스 환경에 적용하기 어렵다는 문제점을 보완하기 위해 자동적으로 처리가 가능한 ontology를 적용한 연구가 진행되고 있다. ontology는 특정 분야의 자원과 그 관계를기술함으로서 시맨틱 웹 서비스가 가능하도록 지원하고 있으며, 웹 서비스들의 의미론적 상호 운용성을 지원하기 위한 인프라를 제공하고 있다. 이렇듯 ontology를 웹서비스에 적용하기 위한 시맨틱 웹서비스에 대한 연구가 활발하게 이뤄지고 있다. 본 논문에서는 기존에 개발된 서비스를 포함하여 저장된 데이터 이용을 지원하기 위한 시맨틱 웹 서비스 기반의 서비스 통합 시스템을 설계한다.

Matching Algorithm Based on Semantic Similarity of Service Requirement Ontology for CAE Simulation in Cloud Platform

Ziyun Deng,Jing Zhang,Lijun Cai,Lei Chen,Tingqin He 보안공학연구지원센터 2016 International Journal of u- and e- Service, Scienc Vol.9 No.9

When Cloud Platform for Computer Aided Engineering Simulation (CPCAES) are developed to use Service-Oriented Architecture (SOA), on the one hand, it’s necessary to accurately express the service requirements of users, on the other hand it’s need to semantic of the existing services in the platform, and then to match the ontologies. The existing Ontology Web Language for Services / Universal Description Discovery and Integration (OWL-S / UDDI) algorithm has weak matching precision, and not meet the Computer Aided Engineering (CAE) simulation applications. The other semantic similarity algorithms also have weakness in judgment factor, or do not meet the requirements of CAE simulation applications for matching to service requirement ontology in cloud platform. Such that, the authors present a kind of ontology of service requirement for CAE simulation, model the content of the ontology, including resource requirements, computing requirements, computing job requirements, input, output, etc. The authors give the ontology mapping relationship between Ontology Web Language for Services (OWL-S) and the ontology, give the matching decision rules for the ontologies, propose a matching algorithm for matching the ontologies, and compare with the classic OWL-S / UDDI matching algorithm and a similarity matching algorithm proposed in other paper in the ability for measure the similarity quantity of services, the ability to suit the applications, as well as algorithms recall rate and precision rate. The results show the matching algorithm proposed in this paper is more suitable for service requirement ontology of CPCAES, can use the quantify value for the similarity analysis to the ontologies, and has higher precision rate and higher recall rate, which can reach about 90%. The research work in this paper is used in the second prototype of CPCAES, and the research team is developing the third prototype based on semantic Web Services and SOA framework.

네트워크 중심 작전환경을 위한 서비스 정제 기법

이해진(Haejin Lee),강동수(Dongsu Kang) 한국컴퓨터정보학회 2016 韓國컴퓨터情報學會論文誌 Vol.21 No.12

Network-Centric Operational Environment(NCOE) service becomes critical in today"s military environment network because reusability of service and interaction are being increasingly important as well in business process. However, the refinement of service by semantic similarity and functional similarity at the business process was not detailed yet. In order to enhance accuracy of refining of business service, in this study, the authors introduce a method for refining service by semantic similarity and functional similarity in BPMN model. The business process are designed in a BPMN model. In this model, candidated services are refined through binding related activities by the analysis result of semantic similarity based on word-net and functional similarity based on properties specification between activities. Then, the services are identified through refining the candidated service. The proposed method is expected to enhance the service identification with accuracy and modularity. It also can accelerate more standardized service refinement developments by the proposed method.

온톨로지 매핑 정보를 이용한 웹 서비스 자동발견

송재경,김도현,변영철,이상준 제주대학교 공과대학 첨단기술연구소 2004 尖端技術硏究所論文集 Vol.15 No.2

Web Service is a new model based on web to offer dynamic information for a user's request. Currently, the web service discovery mechanism is not efficient because it does not support automatic discovery based on the semantics or capabilities of a web service. The language for semantic web service, such as OWL-S, is being developed to express the capability of a web service semantically. Such semantics can support the more flexible discovery of web services. Web service discovery occurs when the provider's description matches to that of requester. But the matching can fail when the ontologies of service description differ from that of the requester although the requester wants that Web Service. In distributed environment service providers develope their semantic web services independently and tend to use their ontologies to describe web services. So a new approach must be required to avoid service discovery failure. In this paper, a method of annotating the query of requester and discovering semantic web services without service discovery failure is proposed.

상황인지 IoT 서비스 제공을 위한 온톨로지 기반 사용자 친화적 서비스 환경

최환석(Hoan-Suk Choi),이준영(Jun-Young Lee),양나리(Na-Ri Yang),이우섭(Woo-Seop Rhee) 한국콘텐츠학회 2014 한국콘텐츠학회논문지 Vol.14 No.7

상황인지 서비스 제공을 위해서는 센서를 이용하여 사용자의 상황, 정황, 상태 정보를 추적하여야 한다. 하지만 센서에서 수집된 데이터는 시스템, 문법, 구조, 의미적인 측면에서 이질성을 가지고 있어 다양한 서비스에 재사용이 어렵다. 이를 위해 센서 데이터는 이와 같은 이질성을 제거하고 상황인지 서비스 제공에 용이한 컨텍스트 정보 형태로 처리 되어야 한다. 또한 기존의 상황인지형 서비스 정의 환경은 상황을 정의하기 위해 필요한 센서의 종류나 상황정보의 기준, 서비스 정의를 위한 프로그래밍 능력 등을 필요로 하여 일반적인 사용자의 이용이 어려운 실정이다. 따라서 본 논문에서는 IoT 패러다임을 통해 습득된 데이터를 이용하여 상황을 인지하고 사용자가 원하는 서비스를 제공하는 상황인지 IoT 서비스의 제공을 위한 온톨로지 기반 사용자 친화적 서비스 환경을 제안한다. 제안하는 환경은 센서 데이터를 컨텍스트 정보로 처리하는 온톨로지 기반 시멘틱 센서 데이터 처리 메커니즘과 사용자 친화적 서비스 정의 환경으로 구성된다. To provide context aware service, certain phenomena and situation information of the user should be detecting and monitoring using sensors. But, the sensor data has heterogeneity about system, syntax, structure, and semantics. So, it is difficult to apply to various services. To solve this issue, we should remove these heterogeneities and convert to context information that is easy to provide context aware services. Also, the existing context aware service mash-up environment require relevant sensor type, criteria of context, programing ability to define the service situation. So, it is difficult to create service for a non-technical user. Therefore, we propose ontology based user-centric service environment to provide context aware IoT services. It provide context awareness and user-desired services using data that acquired via IoT paradigm. The proposed environment consist of the ontology based semantic sensor data processing and the user-centric service environment. It provide convert the object data to the context information and service mash-up process to create user service in easy way.

전북지역 청년사회서비스 참여 경험과 요구에 대한 의미연결망 분석

유미옥,이경래,임은미 한국직업교육학회 2022 職業 敎育 硏究 Vol.41 No.6

The purpose of this study was to analyze the participants’ experiences and needs of the Youth Social Service in the Jeollabuk-do Province. For this purpose, a semantic network analysis was conducted on the online response results of 128 participants in the Jeonbuk Youth Social Service Project. The results were as follows. First, the key word that appeared most frequently as an opportunity to participate in youth social services was ‘exercise’. Respondents participated in this program for ‘free experience’, ‘employment stress counseling’, and ‘mental and physical health management’. Second, key words such as ‘teacher’, ‘exercise’, ‘consultation’, and ‘one-on-one’ appeared as positive experiences with youth social services. The ‘customized free service’, ‘mind and body care’, and ‘self-esteem gained together’ were appeared as a core topic. Third, the main problem of youth social services was ‘lack of number of programs can be participated’. As a result, ‘lack of opportunities to participate’, ‘lack of various options’, and ‘lack of facilities and manpower’ were pointed out as problems. Fourth, as the most important way to improve youth social services, ‘expansion of publicity’ was mentioned. ‘Diversification of programs’, ‘expansion of the number of education days’, and ‘improvement of service quality’ were suggested. Fifth, key words such as ‘exercise’, ‘counseling’, ‘education’, ‘experience’, ‘career’, ‘hobby’, and ‘healing’ appeared for new youth social services wanted and requested by respondents. The main topics were divided into ‘career employment support service’, ‘various experience services’, and ‘maintenance of exercise and counseling services’. Finally institutional and practical measures for improving youth social services were discussed based on these results. 이 연구는 전북지역 청년사회서비스 참여자의 경험과 요구를 분석하기 위해 수행되었다. 이를 위해 전북청년사회서비스사업단 참여자 128명의 온라인 응답결과에 대하여 의미연결망 분석을 실시하였다. 연구결과 첫째, 청년사회서비스 참여 계기로 가장 자주 등장한 단어는 ‘운동’이었고, 응답자들은 ‘무료체험’, ‘취업스트레스 상담’, ‘심신건강 관리’를 위해서 이 프로그램에 참여한 것으로 나타났다. 둘째, 청년사회서비스에 대한 긍정적인 경험으로는 ‘선생님’, ‘운동’, ‘상담’, ‘일대일’ 등의 단어가 나타났고, 주로 등장한 토픽은 ‘맞춤형 무료서비스’, ‘심신돌봄’, ‘함께하며 얻은 자존감’이었다. 셋째, 청년사회서비스의 주된 문제점은 ‘횟수’의 부족이었으며, 이로 인한 ‘참여기회 제공 부족’, ‘다양한 선택지 부족’, ‘시설과 인력 부족’의 문제가 나타났다. 넷째, 응답자들이 지적한 가장 핵심적인 서비스 개선방안은 ‘홍보확대’ 였으며, 이 외에 ‘프로그램 다양화’, ‘교육일수 확대’, ‘서비스의 질적 향상’ 등이 있었다. 다섯째, 응답자들이 요구하는 새로운 청년사회서비스에 대해서는 ‘운동’, ‘상담’, ‘교육’, ‘체험’, ‘진로’, ‘취미’, ‘힐링’ 등의 단어가 나타났고, 주요 토픽은 ‘진로취업지원 서비스’, ‘다양한 체험서비스’, ‘운동・상담서비스 유지’로 나누어졌다. 이러한 결과를 바탕으로 청년사회서비스의 개선을 위한 제도적・실무적 방안을 논의하였다.

Research on Dynamic Assembled Algorithm of Component based on Semantic Web Service

Luo Dingfu 보안공학연구지원센터 2015 International Journal of u- and e- Service, Scienc Vol.8 No.7

In development of service-oriented software systems based on component technology, dynamic assembling of service components is research issues, but many dynamic assembled algorithms based on keywords have some limits such as low successful rate and so on, it is necessary that research dynamic assembled algorithm. To analyze semantic web service and component technology, some correlative definitions of web service components are given by markup language of web service, the theory of domain ontology is cited, a dynamic assembled algorithm for components of semantic web service based on domain ontology is provided, the dynamic assembled ideal of service component is given according to semantic relationship, the algorithm is realized with pseudo codes. Finally, the feasibility and efficiency about algorithm are demonstrated by experiment and contrast analysis.

A Semantic-Aware Approach for Automatic Cloud Services Composition

Hasan A. H. Naji,Chao Zhong Wu,Shu Gao 보안공학연구지원센터 2016 International Journal of Grid and Distributed Comp Vol.9 No.8

Service composition is considered as a promising approach to generate composite services for satisfying services Consumers’ needs using their preferences. Literature review shows that previous studies ignored issues that affect Service composition such as increasing composition time and no ranking for produced composite services. To address these issues, we propose a semantic-aware approach for automatic cloud services composition. Firstly, a semantic network of service is built using an efficient input-output matching algorithm. Secondly, a Forward-Chaining based algorithm is adopted to create composite services, according to the request of the Cloud Service Consumer. Thirdly, a hybrid ranking method based on similarity quality and QoS Criteria is implemented to select “the most suitable” composite service. The results of experiments provide evidence that our approach can effectively produce composite services for service consumer’s request, and show benefits of consuming less composition time comparing to similar composition algorithms.