• Journal of Internet Computing and Services
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• v.14 no.2
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• pp.25-34
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• 2013

In this paper, we propose an activity-performer bipartite matrix generation algorithm for analyzing workflow-supported human-resource affiliations in a workflow model. The workflow-supported human-resource means that all performers of the organization managed by a workflow management system have to be affiliated with a certain set of activities in enacting the corresponding workflow model. We define an activity-performer affiliation network model that is a special type of social networks representing affiliation relationships between a group of performers and a group of activities in workflow models. The algorithm proposed in this paper generates a bipartite matrix from the activity-performer affiliation network model(APANM). Eventually, the generated activity-performer bipartite matrix can be used to analyze social network properties such as, centrality, density, and correlation, and to enable the organization to obtain the workflow-supported human-resource affiliations knowledge.

• Journal of the Korean Institute of Intelligent Systems
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• v.27 no.1
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• pp.42-49
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• 2017

Studies for efficient information retrieval and reuse of information resources using the ontology techniques are being in progress in various fields. In this paper, we build an ontology to provide a food additive information for consumers given by the KFDA and food safety information portal. Food additives were represented in OWL based knowledge using $Prot{\acute{e}}g{\acute{e}}$. We defined Class, Property, Relationships for providing food additives names, origins, purposes and basic information. In order to retrieve the information of the food additive, we built 679 instances with an ontology, and confirmed the results through DL Query queries. We can expect that the food additives ontology shown in this paper will help the integration and improvement of the information retrieval systems of the related fields in future.

• Journal of the Korean Dietetic Association
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• v.25 no.4
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• pp.257-268
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• 2019

This study provides basic data on how stress impacts the processed convenience foods purchase attitudes and the selection attributes of housewives. The stress consists of 3 factors, which were housework stress, family relation stress and economic stress. The processed convenience food purchase attitude consisted of 2 factors, which were peripheral influence purchase and conviction purchase. The processed convenience food selection attribute consisted of 4 factors, which were quality, convenience, packaging and price. Factor loading confirmation and reliability test were conducted, and the reliability was confirmed with Cronbach's alpha coefficients for all the factors exceeding 0.5. The high stress levels showed significantly high stress factors of housework, family relations and economic stress (P<0.001). The high stress group was shown to make purchases by recognizing peripheral influences (P<0.01). When the selection properties of processed convenience foods depending on different stress levels were examined, it was revealed that among the three groups, the low stress group least considered the price aspect (P<0.01). After deducting the factors, AMOS (Analysis of Moment Structure) was used to conduct the confirmatory factor analysis for verifying validity. The structural equation model was used to determine the path coefficient. From the processed convenience foods purchase attitude, the peripheral influence purchase had significantly positive (+) effects on convenience (P<0.05). Also, conviction purchase was shown to have significantly positive (+) effects on quality (P<0.05). Housework and family relation stress were shown to have negative (-) effects on processed convenience foods selection attribute, and economic stress was shown to have positive (+) effects, although no significant relationships were revealed.

• Proceedings of the Korea Water Resources Association Conference
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• 2015.05a
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• pp.627-627
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• 2015

기존 물관련 시스템들은 독자적인 DB 구조를 가지고 있고 검색 서비스는 자체 시스템의 DB를 직접 접근하여 사용자에게 결과를 제시하는 형식이다. 이러한 서비스의 단점은 사용자가 개별 시스템의 서비스에 대한 지식이 없으면 접근하기 어렵다는 점이다. 개별 시스템의 개별 서비스의 개념을 벗어나기 위하여 물관련 시스템에 있는 하천공간자료 검색 정보를 카탈로그 서버에 등록하고, 카탈로그 서버에 등록된 검색정보를 사용자가 검색하는 방식을 적용하고자 한다. 카탈로그 서버에 자료에 대한 정보를 등록할 때 자료의 정보를 어떻게 기술할 것인가의 문제가 발생한다. 개별 서버마다 등록하게 된다면 용어 및 문화에 의한 차이로 같은 개념을 다른 용어로 등록하게 되는 혼란이 발생할 소지가 있다. 예를 들어 강우자료에 대하여 "강우", "Precipitation", "Railfall", "비" 등으로 등록할 소지가 있다. 이러면 실제 자료가 존재하는 데도 등록 방법에 따라 자료의 검색이 어려워진다. 이러한 상황을 제어하기 위하여 검사어휘(Controlled Vocabulary)를 도입한다. 이는 포털의 운영자가 미리 용어의 개념과 용어의 분류체계를 설정하고 등록 자료의 검색어를 미리 설정하여 자료의 원천 소유자가 자료를 등록 시 검사어휘를 참고하여 등록하거나 또는 등록되지 않는 용어의 자료인 경우 이 용어를 포탈에 신규로 등록한다. 검색용어의 난립을 피하기 위하여 사용자의 신규등록은 포탈의 운영자가 어느 정도 제어할 필요가 있다. 검사어휘의 정립과 하천 관련된 분류체계는 하천공간정보 검색의 포탈을 위한 필수사항이다. 검사어휘의 정립의 주된 목적은 이질성의 극복이다. 이질성의 종류는 문법적 이질성, 데이터 형식과 구조 및 문맥적 이질성이 있다. 이 중에서 문맥적 이질성이 가장 넓고 어려운 문제이다. 단위는 분야마다 호칭이 다르고 채택하는 기준마다 다르다. 유사어는 전문용어라도 분야마다 다르다. 우리나라에서 서비스 인코딩시 국어와 영어를 어떻게 처리할 지에 대한 대책도 필요하다. 수문학의 시계열 자료를 다루는 CUAHSI/HIS의 온톨로지는 대 개념으로 물리학적, 화학적 및 생물학적인 분야로 분류하고 있다. 하천공간정보의 온톨로지 구축을 위해 데이터 분석 및 분류, 온톨로지 요소 설정, 온톨로지 데이터 테이블 작성, 클래스 생성 및 계층화, 클래스 계층화에 따른 속성 설정, 클래스에 적합한 개체 삽입, 논리 관계 확인 및 수정과 같은 과정으로 온톨로지 개발을 진행하고자 한다.

• Education of Primary School Mathematics
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• v.22 no.4
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• pp.223-237
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• 2019

There is a close interaction between the linguistic-syntactic representation system and the affective representation system that appear in the mathematical process. On the other hand, since the mathematical conceptual system is fundamentally metaphoric, the analysis of the mathematical concept structure through linguistic representation can help to identify the source of cognitive and affective obstacles that interfere with mathematics learning. In this study, we analyzed the problem-solving protocols of mathematical gifted children from the perspective of cognitive language and meta-affect to identify the relationship between the functional characteristics of the text and metaphor they use and the functional characteristics of meta-affect. As a result, the behavior of the cognitive and affective characteristics of mathematically gifted children differed according to the success of problem solving. In the case of unsuccessful problem-solving, the use of metaphor as an internal representation system was relatively more frequent than in the successful case. In addition, while the cognitive linguistic aspects of metaphors play an important role in problem-solving, meta-affective attributes are closely related to the external representation of metaphors.

• Annual Conference on Human and Language Technology
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• 2010.10a
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• pp.114-117
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• 2010

특정 대상 또는 외부 자극에 대해 반사적이고 직관적으로 발생하는 느낌으로 정의되는 감성은 자신의 경험을 바탕으로 개개인이 서로 다른 반응을 보이는 특징을 가진다. 이러한 감성은 맞춤형, 적응형 및 개인화된 서비스를 요구하는 현대사회에서 반드시 필요하고 연구되어야 하는 대상이다. 하지만, 감성은 외부 자극에 따라 빠르게 변하고 객관성을 유지하기 어려울 뿐 아니라 복합적으로 나타나기 때문에 측정하거나 표현하기가 매우 어렵다. 시각정보는 감성을 이해하고 전달하는 데 큰 비중을 차지하며, 대상에 대한 종합적인 정보를 전달하여 빠르게 인지하고 이해하는데 많은 도움을 준다. 그 중 색채정보는 대상의 객관적인 특정, 심리적 속성 및 사회적 배경을 반영할 수 있어 복합적인 감성을 효과적으로 표현하고 전달한다. 많은 연구를 통해 감성과 색채정보 간의 관계를 생성하고 정의하였지만, 단일 시각정보로 감성을 표현하는 것은 한계가 있다. 본 논문에서는 종합적인 시각정보를 고려한 감성연구를 제안하기 위해 대용량의 감성어휘와 이미지를 수집하였다. 감성어휘는 The Center for the Study of Emotion and Attention(CSEA)에서 생성한 균형 감성어휘 중 273개를 사용하였고 감성이미지는 객관성과 공통성을 유지하기 위해 사용자의 참여가 활발하고 이미지에 부착된 태그가 비교적 정확한 Flickr를 사용하여 수집하였다. 감성어휘 당 약 500개의 이미지를 수집하고자 시도하였고, 총 130,944개의 감성이미지 후보를 수집하였다. 한 번 수집된 이미지는 중복을 피하였고, JPEG형식으로 저장되어 있다. 또한, 각 이미지에는 사용자 태그가 평균적으로 약 25개가 포함되어 있고, 총 2,l47,645개의 태그를 수집하였다.

• Journal of Convergence for Information Technology
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• v.8 no.4
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• pp.127-133
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• 2018

In recent years, the interest and importance of the sharing economy is increasing, and car sharing services are being activated. This study examined the effect of shopping value perceived by consumers on brand loyalty and intention to use the car sharing service. The purpose of this study is to identify the effects of these relationships on utilitarian and hedonic shopping values. To verify this, data were collected from 364 car sharing users and analyzed using structural equation modeling. As a result, both utilitarian shopping value and hedonic shopping value had a positive effect on brand loyalty. Brand loyalty had a positive effect on intention to use. Therefore, this study can confirm that the use situation of car sharing service is a theoretical and practical point in suggesting shopping value considering consumption attribute. This implies that a consumer-oriented approach to the sharing economy is needed.

• Journal of the Korea Society of Computer and Information
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• v.11 no.3
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• pp.281-289
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• 2006

Even though software developing environment has been changing to Web basis very fast, there are just few studies of quality metric or estimation model for Web software. In this study after analyzing the correlation between the risk level and property of objects using linear regression, six middle sized industrial system has been used to propose the correlation model of size and Number of Classes(NOC), size and Number of Methods(NOM), complexity and NOC, and complexity and NOM. Among of six systems 5 systems(except S06) have high correlation between size(LOC) and NOM, and four systems(except S04 & S06) have high correlation between complexity and NOC / NOM. As Web software architecture with three sides of Server, Client and HTML, complexity of each sides has been compared, two system(S04, S06) has big differences of each sides compleity values and one system(S06) has very higher complexity value of HTML, So the risk level could be estimated through NOM to improve maintenance in case of that the system has no big differences of each sides complexity.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.32 no.3
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• pp.217-246
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• 2021

This study aimed to analyze the quality concepts and requirements of digital records as evidence and to find an implication to develop requirements for trusted digital records with securing authoritative qualities. To this end, this study compared requirements of records domain linking records process, records metadata and records systems with judicial domain on digital evidence, and identified the records requirements to secure the legal admissibility linking records and judicial domain. This study analyzed the relationship of quality concepts between digital records and digital evidence, found the legal admissibility is highly related to the reliability, and derived that it needs the measure to secure the reliability at the stage of records creation and capture. To prove authenticity of digital evidence, this study identified importance of records process, records metadata and records system, and proposed the necessity of measurement to secure records' evidence.

• Knowledge Management Research
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• v.22 no.3
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• pp.55-73
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• 2021

The sharing economy is considered as a collaborative consumption which enables customers to share unused resources. This study investigated the key factors affecting consumer loyalty in the context of sharing accommodation. Emotions, perceived value and self-image consistency were posited as key antecedents of enhancing customer loyalty. Authentic experience, home amenities, and price fairness were also considered as Airbnb's selection attributes. Airbnb was selected a survey target because it is the largest company in the domain of shared accommodation market. The research model was analyzed for 294 Airbnb customer through structural equation models. Additionally, this paper examine Airbnb customers' experiences by topic modelling method posted on the Naver blog. Based on the understanding of the key factors affecting customer loyalty to sharing accommodation, the analysis results contribute to establish effective marketing and operation strategies by enhancing customer experience.