• 한국국방경영분석학회지
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• 제36권1호
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• pp.39-49
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• 2010

본 연구에서는 과학기술 텍스트 마이닝을 이용하여 국방 유망기술을 식별하는 방법론을 제안하고 있다. 그동안 국가차원에서 NTIS와 DTiMS를 포함한 과학기술 관련 정보체계를 구축하는데 많은 노력을 기울여왔는데 과학기술 정보체계는 연구자와 정책입안자, 또는 실무자들이 기술적 변화를 분석하고 효율적인 업무진행, 지식공유, 전략개발, 또는 조직의 경쟁력을 높이기 위한 정책개발에 활용성이 크다. 본 연구에서는 INSPEC 데이터베이스에 과학기술 텍스트마이닝 기법을 적용하여 미래 무인전투기술에 대한 지식네트워크 구조와 국방 유망기술을 식별하는 과정을 예시함으로써 구축된 과학기술 정보체계를 이용한 미래 유망기술의 식별 방법론을 제시하였다.

• 한국비블리아학회지
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• 제26권1호
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• pp.217-231
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• 2015

본 연구에서는 췌장암의 유전자-단백질 상호작용 네트워크를 구성하고, 관련 연구에서 주요하게 언급되는 유전자-단백질의 유발관계 사슬을 파악함으로써, 췌장암의 원인을 규명하는 실증적인 연구로 이어질 수 있는 미발견 공공 지식을 제공하려 하였다. 이를 위하여 텍스트마이닝과 주경로 분석을 Swanson의 ABC 모델에 적용해 중간 개념인 B를 방향성을 가진 다단계 모델로 확장하고 가장 의미 있는 경로를 도출하였다. 본 연구의 주제가 된 췌장암의 사례처럼 시작점과 끝점조차 한정할 수 없는 미발견 공공 지식 추론에서 주경로 분석은 유용한 도구가 될 수 있을 것이다.

• 한국정보시스템학회지:정보시스템연구
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• 제29권4호
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• pp.171-191
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• 2020

Purpose The study aims to compare the online review writing behavior of users in China and the United States through text mining on online reviews' text content. In particular, existing studies have verified that there are differences in online reviews between different cultures. Therefore, the purpose of this study is to compare the differences between reviews written by Chinese and American tourists by analyzing text contents of online reviews based on cultural theory. Design/methodology/approach This study collected and analyzed online review data for hotels, targeting Chinese and US tourists who visited Korea. Then, we analyzed review data through text mining like sentiment analysis and topic modeling analysis method based on previous research analysis. Findings The results showed that Chinese tourists gave higher ratings and relatively less negative ratings than American tourists. And American tourists have more negative sentiments and emotions in writing online reviews than Chinese tourists. Also, through the analysis results using topic modeling, it was confirmed that Chinese tourists mentioned more topics about the hotel location, room, and price, while American tourists mentioned more topics about hotel service. American tourists also mention more topics about hotels than Chinese tourists, indicating that American tourists tend to provide more information through online reviews.

• 한국멀티미디어학회논문지
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• 제11권6호
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• pp.875-882
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• 2008

This research proposes an alternative approach to machine learning based ones for text categorization. For using machine learning based approaches for any task of text mining, documents should be encoded into numerical vectors; it causes two problems: huge dimensionality and sparse distribution. Although there are various tasks of text mining such as text categorization, text clustering, and text summarization, the scope of this research is restricted to text categorization. The idea of this research is to avoid the two problems by encoding a document or documents into a table, instead of numerical vectors. Therefore, the goal of this research is to improve the performance of text categorization by proposing approaches, which are free from the two problems.

• 한국컴퓨터정보학회논문지
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• 제10권5호
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• pp.27-32
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• 2005

최근 들어 데이터 마이닝 기법을 컴퓨터 네트워크의 침입 탐지에 적용하려는 많은 연구가 진행되고 있다. 본 논문에서는 침입 탐지 분야에서 프로그램 행위가 정상적인지 비정상적인지를 분류하기 위한 방법을 연구한다. 이를 위해, 택스트 마이닝 기법중의 하나인 k 최근접 이웃 (kNN) 분류기를 이용한 새로운 방법을 제안한다. 본 논문에서는 택스트 분류 기법을 적용하기 위해 각각의 시스템 호출을 단어로 간주하고, 시스템 호출의 집합들을 문서로 간주한다. 이러한 문서들은 kNN 분류기를 이용하여 분류된다. 간단한 예제를 통하여 제안하는 절차를 소개한다.

• 한국정보시스템학회지:정보시스템연구
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• 제28권4호
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• pp.155-174
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• 2019

Purpose Social interest in financial statement notes has recently increased. However, contrary to the keen interest in financial statement notes, there is no morphological analyzer for accounting terms, which is why researchers are having considerable difficulty in carrying out research. In this study, we build a morphological analyzer for accounting related text mining techniques. This morphological analyzer can handle accounting terms like financial statements and we expect it to serve as a springboard for growth in the text mining research field. Design/methodology/approach In this study, we build customized korean morphological analyzer to extract proper accounting terms. First, we collect Company's Financial Statement notes, financial information data published by KPFIS(Korea Public Finance Information Service), K-IFRS accounting terms data. Second, we cleaning and tokeninzing and removing stopwords. Third, we customize morphological analyzer using n-gram methodology. Findings Existing morphological analyzer cannot extract accounting terms because it split accounting terms to many nouns. In this study, the new customized morphological analyzer can detect more appropriate accounting terms comparing to the existing morphological analyzer. We found that accounting words that were not detected by existing morphological analyzers were detected in new customized morphological analyzers.

• 한국정보시스템학회지:정보시스템연구
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• 제32권3호
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• pp.19-39
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• 2023

Purpose This study aims to identify user experience factors that can enhance both metaverse utilization and satisfaction based on the honeycomb model. For this we presented two research questions: first, what are the experience factors of metaverse users? Second, do metaverse user experience factors impact satisfaction? Design/methodology/approach To address these questions, a mixed-methodology approach is employed, including text mining techniques to analyze online reviews and quantitative econometric analysis to reveal the relationship between user experience factors and satisfaction. A total of 69,880 reviews and ratings data were collected. Findings The analysis revealed eight metaverse user experience factors: entertainment, operability, virtual reality, immersion, economic activity, visual performance, avatar, and sociality, all of which were found to have a positive impact on user satisfaction.

• 한국건설관리학회논문집
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• 제17권5호
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• pp.89-96
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• 2016

건설 프로젝트에서 생산되는 대부분의 데이터는 텍스트 기반의 비정형 데이터이다. 계약서, 시방서, RFi 등 수많은 텍스트 문서들을 효과적으로 분석하기 위해서는 텍스트 마이닝과 같은 비정형 텍스트 데이터 분석 방법이 필요하다. 이에 본 연구에서는 과거에 수행되었던 해외건설공사 프로젝트의 입찰 관련 문서들을 대상으로 텍스트 마이닝을 실시하였으며, 그 결과 빈출단어의 유형, 단어들 간의 연관관계, 문서들의 토픽 유형들에 대한 파악이 가능하였다. 본 연구는 텍스트 마이닝을 활용한 해외건설공사 입찰 정보 분석을 통해 비정형 텍스트 데이터를 효과적으로 분석할 수 있는 방안을 제시하였다는 점에서 의의가 있으며, 향후 관련 분야 연구를 확장시킬 수 있는 기반을 마련할 수 있을 것이라 기대한다.

• 한국정보시스템학회지:정보시스템연구
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• 제26권4호
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• pp.327-353
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• 2017

Purpose Social media such as social network services, online forums, and customer reviews have produced a plethora amount of information online. Yet, the information deluge has created both opportunities and challenges at the same time. This research particularly focuses on the challenges in order to discover and track the service defects over time derived by mining publicly available online customer reviews. Design/methodology/approach Synthesizing the streams of research from text analytics, we apply two stages of methods of sentiment analysis and structural topic model incorporating meta-information buried in review texts into the topics. Findings As a result, our study reveals that the research framework effectively leverages textual information to detect, prioritize, and categorize service defects by considering the moving trend over time. Our approach also highlights several implications theoretically and practically of how methods in computational linguistics can offer enriched insights by leveraging the online medium.

• 품질경영학회지
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• 제51권4호
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• pp.701-713
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• 2023

Purpose: The primary purpose of this study is to integrate text mining and Quality Function Deployment (QFD) to automatically extract valuable information from customer reviews, thereby establishing a QFD frame- work to confirm genuine customer needs for New Product Development (NPD). Methods: Our approach combines text mining and QFD through topic modeling and sentiment analysis on a large data set of 56,873 customer reviews from Zappos.com, spanning five running shoe brands. This process objectively identifies customer requirements, establishes priorities, and assesses competitive strengths. Results: Through the analysis of customer reviews, the study successfully extracts customer requirements and translates customer experience insights and emotions into quantifiable indicators of competitiveness. Conclusion: The findings obtained from this research offer essential design guidance for new product develop- ment endeavors. Importantly, the significance of these results extends beyond the running shoe industry, presenting broad and promising applications across diverse sectors.