• Annual Conference on Human and Language Technology
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• 2009.10a
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• pp.155-159
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• 2009

본 논문은 한국어 문서 감정분류를 위한 중요한 어휘 자원인 감정자질(Sentiment Feature)의 의미지향성(Semantic Orientation) 추정을 위해 일반적인 특성과 영역(Domain) 의존적인 특성을 반영하여 한국어 문서 감정분류(Sentiment Classification)의 성능 향상을 얻을 수 있는 기법을 제안한다. 감정자질의 의미지 향성은 검색 엔진을 통해 추출한 각 감정 자질의 스니핏(Snippet)과 실험 말뭉치를 이용하여 추정할 수 있다. 검색 엔진을 통해 추출된 스니핏은 감정자질의 일반적인 특성을 반영하며, 실험 말뭉치는 분류하고자 하는 영역 의존적인 특성을 반영한다. 이렇게 얻어진 감정자질의 의미지향성 수치는 각 문장의 감정강도를 추정하기 위해 이용되며, 문장의 감정 강도의 값을 TF-IDF 가중치 기법에 접목하여 감정자질의 가중치를 책정한다. 최종적으로 학습 과정에서 긍정 문서에서는 긍정 감정자질, 부정 문서에서는 부정 감정자질을 대상으로 추가 가중치를 부여하여 학습하였다. 본 논문에서는 문서 분류에 뛰어난 성능을 보여주는 지지 벡터 기계(Support Vector Machine)를 사용하여 제안한 방법의 성능을 평가한다. 평가 결과, 일반적인 정보 검색에서 사용하는 내용어(Content Word) 기반의 자질을 사용한 경우보다 3.1%의 성능향상을 보였다.

• Proceedings of the Korean Society for Cognitive Science Conference
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• 2000.05a
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• pp.220-225
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• 2000

컴퓨터 기술이 발전하고, 널리 보급됨에 따라 컴퓨터와 사용자간의 인터페이스가 인간 친화적으로 발전하고 있다. 현재 진행되고 있는 사용자 친화적인 인터페이스 기술로는 지능성뿐 아니라 감정을 가지는 캐릭터 에이전트가 있다. 본 논문은 캐릭터 에이전트의 감정을 생성하고 표현하는 방법에 초점을 두고자 한다. 먼저, 캐릭터가 가질 수 잇는 감정에 대한 타입을 정의하고 이들의 관계를 나타낸 계층 구조를 정의하였다. 본 논문은 효율적인 감정 추론을 모형화 하기 위해서 블랙보드 기반의 다단계 인지 모형을 제안한다. 첫 단계는 감정을 이끌어 내는 외부 환경을 평가 처리하는 메타 인터프리터이다. 둘째 단계는 이러한 메타 인터프리터를 통하여 얻은 결과를 이용하여 감정을 추론하고 생성하는 분야 인터프리터이다. 셋째 단계는 감정추론의 진행 중에 발생하는 모든 동적 상태를 보유하며, 감정추론을 돕는 블랙보드이다. 블랙 보드 기반의 다단계 인지 모형에서 추론된 여러 감정들은 계층구조에 의하여 추상화 과정을 거쳐 캐릭터의 행동으로 표현하게 된다.

• Annual Conference on Human and Language Technology
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• 2014.10a
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• pp.211-214
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• 2014

본 연구에서는 질의를 기반으로 사용자의 감정상태를 예측하는 방법을 제안한다. 제안방법은 자극-감정 규칙베이스 구축, 규칙확률 값 기반 질의 랭킹, 질의 랭킹 기반 사용자 감정예측의 단계로 구성된다. 방법의 적절성을 검증하기 위하여 힘들다와 심심하다에 대한 결과로 사용자평가를 실시하였다. 힘들다의 결과에서는 힘들다 정도에 대한 점수가 높은 질의들을 지속적으로 검색하는 사용자들을 힘들다라고 판단할 수 있다고 분석되었다. 심심하다의 결과에서는 방법 간 유의미한 차이를 보이지 않았으나, 특정 개별질의의 지속적인 패턴을 분석하는 것이 좀 더 높은 점수를 얻은 것으로 평가되었다.

• Korean Journal of Cognitive Science
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• v.19 no.4
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• pp.499-517
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• 2008

In this paper, we propose an effective emotion feature extraction method for Korean and evaluate their availability in sentiment classification. Korean emotion features are expanded from several representative emotion words and they play an important role in building in an effective sentiment classification system. Firstly, synonym information of English word thesaurus is used to extract effective emotion features and then the extracted English emotion features are translated into Korean. To evaluate the extracted Korean emotion features, we represent each document using the extracted features and classify it using SVM(Support Vector Machine). In experimental results, the sentiment classification system using the extracted Korean emotion features obtained more improved performance(14.1%) than the system using content-words based features which have generally used in common text classification systems.

• Smart Media Journal
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• v.11 no.7
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• pp.28-38
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• 2022

The term 'fourth industrial revolution' was mentioned at the World Economic Forum (WEF) in 2016 and has become a term representing a new industrial era based on information and communication technology (ICT). In the environment of the 4th industrial revolution, ESG management activities are becoming a very important factor in business activities. With the emergence of a new paradigm of organizational operation in the post Covid19 era, the demands for ESG (Environment, Social, Governance) investment related to the environment, social responsibility are increasing. This study examines the role that can support ESG management by utilizing the expertise of appraisers. Real estate is one of the fields of high public interest, and since most ESGs have been conducted centered on the role of private companies, the role of the expert group or the role of public corporations and public institutions is relatively insufficient. If a company or general company engaged in the real estate investment business establishes the role of the Korea Appraisers Association to revitalize ESG management using appraisers, such as ESG appraisers, when investing in real estate, it is believed that it will be possible to promote efficient and sound development of the real estate industry. It was judged that a study on a group of experts was also necessary. In addition, even if the impact of Covid-19 is excluded, it is necessary to gradually introduce an appraisal using non-face-to-face or various advanced technologies (the 4th industry). This study differs from previous studies in that it focused on the role of ESG by the Korea Association of Property Appraisers while research on the role of ESG in public institutions or expert groups is being actively conducted in recent years.

• The KIPS Transactions:PartB
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• v.18B no.5
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• pp.305-314
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• 2011

Research into the visual perception of human emotion to recognize an intention has traditionally focused on emotions of facial expression. Recently researchers have turned to the more challenging field of emotional expressions through body posture or activity. Proposed work approaches recognition of basic emotional categories from body postures using neural model applied visual perception of neurophysiology. In keeping with information processing models of the visual cortex, this work constructs a biologically plausible hierarchy of neural detectors, which can discriminate 6 basic emotional states from static views of associated body postures of activity. The proposed model, which is tolerant to parameter variations, presents its possibility by evaluating against human test subjects on a set of body postures of activities.

• Journal of Software Assessment and Valuation
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• v.15 no.2
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• pp.9-16
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• 2019

More than 25% of software copyright evaluations commissioned to the Korea Copyright Commission are software completeness-defective evaluations. Most of the existing software completeness-defective evaluation cases were made to ensure that the requirements contained in the contract or customer's desired requirements were implemented and able to run, limited to the functionality of the software. This paper proposes a more systematic and reasonable maturity-correction technique to meet software completeness definitions. The ISO / IEC 9241.10 standard is a design standard for improving software quality. The ISO / IEC 9241.10 standard specifies seven items that must be complied with and requires functional integrity for work and operational integrity for work efficiency. The software completeness-defective methodology presented in this paper complements the existing function's implementation-functioning methodology with completeness evaluation on the quality of software.

• Asia Marketing Journal
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• v.10 no.3
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• pp.1-30
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• 2008

The purpose of this study was to identify the effects of self-image congruity and alternative attractiveness on commitment and store loyalty when customers purchase clothes in a department store. A survey was conducted for this study and 530 answer sheets were analyzed using structural equation modeling. The results are as follows: First, self-image congruity has a significant positive effect on affective commitment and continuance commitment. Second, alternative attractiveness has no significant effect on affective and continuance commitment. Third, both affective commitment and continuance commitment have a significant effect on behavior intentions such as repurchase intention, word-of-mouth, and willing to pay more. Fourth, affective commitment has a stronger effect on word-of-mouth intention and willing to pay more than does continuance commitment. Finally, continuance commitment has a stronger effect on repurchase intention than does affective commitment.

• Journal of KIISE:Computing Practices and Letters
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• v.14 no.3
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• pp.336-340
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• 2008

Sentiment classification is a recent subdiscipline of text classification, which is concerned not with the topic but with opinion. In this paper, we present a Korean sentence and document classification system using effective sentiment features. Korean sentiment classification starts from constructing effective sentiment feature sets for positive and negative. The synonym information of a English word thesaurus is used to extract effective sentiment features and then the extracted English sentiment features are translated in Korean features by English-Korean dictionary. A sentence or a document is represented by using the extracted sentiment features and is classified and evaluated by SVM(Support Vector Machine).

• The KIPS Transactions:PartB
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• v.18B no.5
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• pp.325-332
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• 2011

Social Network Services(SNS) such as Twitter, Facebook and Myspace have gained popularity worldwide. Especially, sentiment analysis of SNS users' sentence is very important since it is very useful in the opinion mining. In this paper, we propose a new sentiment classification method of sentences which contains formal and informal vocabulary such as emoticons, and newly coined words. Previous methods used only formal vocabulary to classify sentiments of sentences. However, these methods are not quite effective because internet users use sentences that contain informal vocabulary. In addition, we construct suggest to construct domain sentiment vocabulary because the same word may represent different sentiments in different domains. Feature vectors are extracted from the sentiment vocabulary information and classified by Support Vector Machine(SVM). Our proposed method shows good performance in classification accuracy.