기술사업성평가를 이용한 데이터마이닝 기반의 중소기업 부실 예측 연구 = Using Technological Feasibility Assessment for Predicting the Insolvency of SMEs based on Data Mining Techniques
저자
발행사항
진주 : 경상국립대학교 대학원, 2022
학위논문사항
학위논문(박사)-- 경상국립대학교 대학원 : 경영정보학과 경영정보학 2022. 2
발행연도
2022
작성언어
한국어
주제어
발행국(도시)
경상남도
형태사항
viii, 116 p. ; 26 cm
일반주기명
지도교수: 유동희
UCI식별코드
I804:48003-000000031048
소장기관
This study conducted an experiment using data mining techniques and developed an insolvency prediction model for SMEs using only technological feasibility assessment information from the Korea SMEs and Startups Agency (KOSME). In general, financial statement data is used to predict corporate insolvency. As a financial statement, it is used as a means of reporting the use of assets operated by management, and only quantifies and shows the company's past accounting information, but does not show future performance. In addition, the financial statements of start-up SMEs are more difficult to collect than listed companies and are very limited due to the lack of information available in the financial statements. Since financial statements have such shortcomings, in this study, non-financial information and technical feasibility evaluation information were used to predict corporate insolvency.
In Experiment I, Companies were divided into three years based on the date of establishment. At this time, synthetic minority over-sampling technique (SMOTE) was used to solve the data imbalance between healthy and insolvent companies. A prediction models were created using two datasets and six algorithms of logistic regression, artificial neural networks, decision trees, and an ensemble of each algorithm.
The highest prediction rate was a single decision tree model, with 68.1% for companies with fewer than three years and 80.6% for companies with more than three years. Likewise, among the ensemble algorithms, the decision tree models achieved the highest prediction rate of 69.1% and 82.7%, respectively.
Based on the results of experiment I, the main evaluation indicators of insolvency predictions of companies fewer than three years were financing ability, the CEO’s reliability, and future profitability. And, as the main evaluation indicators of insolvency predictions of companies more than three years were credit status, financing ability, and competitive strength. In addition, insolvency rules were derived for SMEs from the decision tree-based prediction model and proposed ways to enhance the health of loans given to potentially insolvent companies using these derived rules.
In Experiment Ⅱ, a harmonic average of support and confidence method (HSC), which is a new way to select important rules from the many rules in the decision tree and thereby build a core rule-based decision tree (CorDT) that more easily explains the insolvency factors related to SMEs was proposed. To this end, an insolvency prediction model for SMEs was developed using a decision tree algorithm and technological feasibility assessment data as non-financial datasets. Datasets divided into three types–general type, technology development type and toll processing type–applying the characteristics of manufacturing SMEs.
For data balancing, six sampling techniques such as a Random Under-Sampling, SpreadSubsample, ClusterCentroids, Random Over-Sampling, SMOTE, and Adaptive Synthetic Sampling (ADASYN) were applied.
As a result, the insolvency prediction model using the SMOTE, which is an oversampling technique, showed the highest performance with an average prediction rate of 77.6%. Next, important rules were selected by applying HSC to the decision trees with the highest performance and built CorDTs for three types of SMEs using the selected rules. Finally, CorDTs explained the causes of insolvency by type of SME and presented insolvency prevention strategies customized to the three types of SMEs.
The results of this study show that it is possible to predict SMEs’ insolvency using data mining techniques with technological feasibility assessment information and find meaningful rules related to insolvency. And, since the original decision trees generally consisted of many rules, proposed the HSC method as a new way to select important rules from decision trees. Built a CorDT consisting of only the important rules using the HSC, more easily explained the key factors affecting the SMEs insolvency by technology type, and thereby suggested insolvency prevention strategies more efficiently.
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