• Journal of Information Processing Systems
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• 제20권2호
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• pp.215-225
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• 2024

With the rapid development of Internet of Things (IoT) and big data technology, a large amount of data will be generated during the operation of related industries. How to classify the generated data accurately has become the core of research on data mining and processing in IoT industry chain. This study constructs a classification model of IoT industry chain based on improved random forest algorithm and text analysis, aiming to achieve efficient and accurate classification of IoT industry chain big data by improving traditional algorithms. The accuracy, precision, recall, and AUC value size of the traditional Random Forest algorithm and the algorithm used in the paper are compared on different datasets. The experimental results show that the algorithm model used in this paper has better performance on different datasets, and the accuracy and recall performance on four datasets are better than the traditional algorithm, and the accuracy performance on two datasets, P-I Diabetes and Loan Default, is better than the random forest model, and its final data classification results are better. Through the construction of this model, we can accurately classify the massive data generated in the IoT industry chain, thus providing more research value for the data mining and processing technology of the IoT industry chain.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제12권4호
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• pp.1887-1898
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• 2018

In this paper, a method to classify insider threat activity is introduced. The internal threats help detecting anomalous activity in the procedure performed by the user in an organization. When an anomalous value deviating from the overall behavior is displayed, we consider it as an inside threat for classification as an inside intimidator. To solve the situation, Markov Chain Model is employed. The Markov Chain Model shows the next state value through an arbitrary variable affected by the previous event. Similarly, the current activity can also be predicted based on the previous activity for the insider threat activity. A method was studied where the change items for such state are defined by a transition probability, and classified as detection of anomaly of the inside threat through values for a probability variable. We use the properties of the Markov chains to list the behavior of the user over time and to classify which state they belong to. Sequential data sets were generated according to the influence of n occurrences of Markov attribute and classified by machine learning algorithm. In the experiment, only 15% of the Cert: insider threat dataset was applied, and the result was 97% accuracy except for NaiveBayes. As a result of our research, it was confirmed that the Markov Chain Model can classify insider threats and can be fully utilized for user behavior classification.

• 한국전자거래학회지
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• 제23권1호
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• pp.1-22
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• 2018

가치사슬은 경쟁우위 강화를 위한 전략적 도구로써 주로 기업수준, 산업수준에서 분석되어 왔다. 그런데 기업수준에서 가치사슬 분석을 수행하기 위해서는 분석 기업의 거래처 기업들이 그 기업의 가치 사슬에 속하는지의 여부에 따라 분류되어야 한다. 단일 기업에 대한 가치사슬 분류는 전문가들에 의해 원활히 수행될 수 있지만 다수의 기업을 대상으로 분류할 때는 많은 비용과 시간이 소요되는 등의 한계점이 따른다. 따라서 본 연구에서는 실거래 데이터를 기반으로 특정 기업의 거래처 기업들을 분류해서 가치사슬 기업을 자동적으로 도출해주는 모형을 제안하고자 한다. 총 19개의 거래 속성 변수를 실거래 데이터로부터 도출하여 기계학습의 입력 데이터의 형태로 가공하였고, 랜덤포레스트 알고리즘을 이용하여 가치사슬 분류 모형을 구축하였다. 자동차 부품 기업 사례에 본 연구 모형을 적용한 결과, 정확도 92%, F1-척도 76% 그리고 AUC 94%로 자동적 가치사슬 분류의 가능성을 확인하였다. 또한 거래집중도, 거래금액 그리고 거래처별 총 매출액 등과 같은 거래 속성들이 가치사슬에 속하는 기업들을 대표하는 주요 특성임을 확인하였다.

• Journal of Korea Trade
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• 제25권2호
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• pp.75-94
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• 2021

Purpose - This article will take the Korean manufacturing industry as an example to estimate Korea's global value chain status from the perspective of overall and sub-industry, hoping to provide a theoretical reference for Korean manufacturing to climb the global value chain. Design/methodology - Based on the WIOD data. The data is calculated by using MATLAB (2014a) coding. The data for 6 sectors are classified according to the International Standard Industrial Classification revision 3 (ISIC Rev. 3), the WIOD data are used to calculate and compare the position, participation and dynamics of the Korea, China and USA' manufacturing industry in the 1995-2016. Findings - The empirical results supported conclusions of the theoretical model. In the Korean GVC of electrical and optical sector, while stronger forward linkages than backward linkages to GVC are advantageous for an average advanced country, the benefits of downstream tasks are pronounced for non-advanced countries. And proved the correlation for an index to capture a country's upstream position or downstream position, it makes sense to compare that Korea's exports of intermediates in the same sector that are used by China and USA. Originality/value - The first is to re-examine the characteristics of South Korea's participation in global value chains under a more systematic and accurate theoretical framework, which provides a new empirical reference for related research; the second is to content covers of the manufacturing 6 sectors, so as to more completely describe the characteristics of Korean manufacturing's participation in global value chains; The value of this paper is providing empirical evidence of the effect of Korea's the GVC of manufacturing sectors. In the GVC of 6 sectors, first three have a higher position in the value chain and are in the upper middle and upper reaches of the GVC. The latter two have a low GVC position index, which has become the main sector that pulls down the overall position of Korea's manufacturing industry.

• 한국콘텐츠학회논문지
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• 제9권7호
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• pp.184-192
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• 2009

본 연구는 문화산업의 핵심 기술로서 점차 그 중요성과 비중이 커지고 있는 문화기술(CT)의 표준화와 CT 분류체계의 정립을 위한 정책적 방향과 그 우선순위를 업계에 대한 설문조사에 근거하여 설정하는 것을 목적으로 한다. 연구결과, 우선 기존 연구 및 과학기술분류체계를 포함한 관련 체계에 대한 연구를 통하여 CT와 문화산업에 대한 산업적 정의에서의 관점인 콘텐츠 가치사슬 분석에 입각한 창작/기획$\{rightarrow}$제작/표현${\rightarrow}$유통/서비스${\rightarrow}$보존/관리의 중분류와 이에 따른 세부 기술들이 소분류로 편성된 형태의 'CT 분류체계'를 제안하였다. 표준화 수요 조사결과, '제작기술' 부문이 가장 중점적으로 추진해야 할 우선순위로 파악되었다. 고안된 CT 분류체계를 반영하여 진행된 조사에서는 '제작/표현' 및 '창작/기획' 뿐 아니라 콘텐츠의 관리 측면에서의 '유통/서비스' 부문에서도 높은 응답률을 보였다. 이를 통하여 CT 분류체계 내의 세부 기술의 구체화 및 관련 효과의 계량화 그리고 정부 및 학계의 위원회 운영을 통한 산업 환경과 앞으로의 기술 체계에 대한 체계적 연구가 필요하다.

• 한국측량학회지
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• 제29권4호
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• pp.421-428
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• 2011

공간정보산업의 범위가 모호하여 산업규모와 국민경제에서 차지하는 가치를 조사하기가 힘들었다. 본 연구에서는 한국표준산업분류에 기초하여 공간정보산업 범위와 종류를 명확히 할 수 있는 분류안을 제안하였다. 분류안은 공간정보의 가치사슬에 대응하는 각산업 영역의 역한과 특정을 고려하고 기존 표준산업분류체계를 기초로 하였기 때문에 타 산업분야와 연계성이 높은 공간정보산업의 특정을 반영하고 있다. 향후 본 연구에서 제안한 분류안을 활용하여 공간정보산업 정책을 수립하기 위한 산업 통계정보를 체계적으로 구축할 수 있을 것이다.

• 대한안전경영과학회지
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• 제3권1호
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• pp.45-56
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• 2001

In the supply chain, The ATP function doesn't only give customers to confirmation of delivery. It can be used by the core function with ATP rule that can reconcile supplies and demands on the supply chain. Therefore We can acquire the conformation about accuracy on the due date of supplier by using the ATP function of management about real and concurrent access on the supply chain, also can decide the affect about product availability due to forecasting or customer's orders through the ATP. This study analyze the data concerned with ATP and define the necessity on a SCM solution. Under the these environments, after defining the ATP rule that can improve the customer value and data flow related the CRM, we propose the advanced ATP model that proposes the method and classification system that can flexibly aggregate the ATP data with ATP rule on the supply chain.

• 아태비즈니스연구
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• 제14권1호
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• pp.41-57
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• 2023

Purpose - The purpose of this study is to research how the different types of experiences affect consumer's recognition in terms of luxury vintage fashion products, and what kinds of value consumer can achieve. Design/methodology/approach - The study is based on the means-end chain (MEC) approach for an in-depth understanding of consumers' recognition systems through conducting the laddering interview technique. Above all, the research conducted a pilot test to gain attributes of consumer experiences about luxury vintage fashion products from Korean and Taiwanese. Findings - It is found that not only by actual purchase, experience without purchasing also can lead to consumers' self-fulfilment and self-accomplishment, which filled the lack of relevant literature in the luxury vintage industry. In addition, the study sorted out the channels that consumers approach LVF products, which provide a classification reference for future research related to the luxury vintage consumer. Research implications or originality - As consumers can gain a lot kind of value through LVF products, luxury brands can attract consumers by using vintage as a market strategy. For luxury marketers, by running LVF shopping mall online or opening LVF stores, not only allow consumers' attach with LVF products but also can further lead to the purchase behaviors. In addition, consumers who are interested in LVF are those who are aware of the authenticity, uniqueness, and rarity of the brand. Due the fact, these consumers may be interested in the topic of sustainability.

• 한국프랜차이즈경영연구
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• 제6권2호
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• pp.87-104
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• 2015

This study, based on theoretical and practical understanding of franchising, aims to conceptualize franchising in terms of marketing mix and proposes new paradigm of franchising. New schema of the franchise marketing mix involves both customer gap and franchisee gap by including customer and franchisee contacts and sets activities that include components of franchise system as the factor of marketing mix. So we could suggest the franchise marketing mix, '4F' by introducing conventional marketing mix concept into this assumption. The 4F schema consist of four sub-dimensions: 'Format', 'Fee & Royalty', 'Franchising Process', and 'Franchise Communication', which correspond to '4P'. In perspective of marketing mix, we could divide the franchise system into primary activity and support activity, then we also could categorize the fundamental activity into four-classification system, 4F schema. We expect that franchise marketing mix, 4F can be useful both theoretically and practically as it not only is not too different from the conventional marketing mix, but it also proposes franchise value chain by including unique characteristics and contents of the franchise system.

• 한국콘텐츠학회논문지
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• 제13권5호
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• pp.183-190
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• 2013

본 연구에서는 문화콘텐츠 경쟁력 강화 및 미래형 융합콘텐츠 기술 지원을 위한 필수 요소인 문화기술의 분류체계를 제안한다. 이를 위해 문화기술의 개념 및 현황에 대한 고찰을 통해 문화콘텐츠의 특수성을 도출하고, 기존의 문화기술 분류체계와 기타 기술 분류체계의 체계적 분석을 통해 현재 문화기술 분류체계의 문제점 및 향후 문화기술 분류체계의 반영을 위한 시사점을 도출한 후 문화콘텐츠의 특수성을 반영한 새로운 문화기술 분류체계를 개발하였다. 최종적으로 제안된 문화기술 분류체계 안은 문화콘텐츠의 기획, 생산/제작, 유통, 서비스의 모든 가치사슬 과정에 해당하는 관련 기술들을 포괄함과 동시에, 중분류 구성에 있어서 CT의 특성을 문화콘텐츠의 특수성을 고려하여 개편함으로써 산업 현장에서 보다 현실성 있고, 향후 정부 투자 및 제도 반영에 유연한 분류체계로서 그 의미를 갖는다.