• Title/Summary/Keyword: Association Rules Analysis

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A Study on Ensuring Biosafety of Biotechnology Product under Debate about Trade and the Environment (DDA 무역-환경 논의와 생명공학제품의 안전성 확보)

  • Sung, Bong-Suk;Yoon, Ki-Kwan
    • Environmental and Resource Economics Review
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    • v.13 no.3
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    • pp.519-547
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    • 2004
  • This paper analyze problems about scope of specific trade obligations(STOs), principle of dispute settlement procedure, and non-parties in context of the Cartagena Protocol on Biosafety(POB), which based on sub-paragraph 31(i) of DDA WTO Ministrial Declaration. The implications based on result of this study are as follows. First, to accept the wider scope of STOs under POB in Korea, importing country, won't be harmful to LMOs and Bioindustry. Instead, it will ensure a high level of biosafety concerning the import of LMOs. Exporters can take different kinds of trade measures to countervail adverse effect on the export of LMOs in this case. Therefore importer will endure the aftereffect. However, if korea were in exporter's place, to accept the wider scope STOs under POB will not have a good influence on the export of LMOs. Korea, therefore, should devise scheme for responding to debate about the STOs in MEAs, which have to be based on cost-benefit analysis and scenarios taking into account of speed and level in biotechology progress, status and trend of LMOs R&D and production, and condition of other industries. Second, it is not easy to agree with applying to what's rule between the POB and WTO for settlement dispute. Because there is the incompatibility between the POB characterized according to social rationality and WTO's rules for safety and environmental protection characterized according to scientific rationality. This issue have to be discussed for long period due to gap like that. Accordingly Korea, one of major LMOs importing countries, should suggest continuously that the effort is needed to ensure an adequate level of protection in transboundary movements of LMOs and scientific, environmental and socio-economic study. Third, in case of dispute between party and non-party of the POB, the duties under the WTO of non-party of the POB(if WTO member country) is valid. The country, therefore, will try to settle dispute based on WTO's rules. However, international society have to ensure for sound and safe use of LMOs in the field of transboundary movements. Accordingly Korea should devise scheme for preventing the possibility of dispute between party and non-party of the POB(if WTO member country), which is supported by policy options under the POB.

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A Analysis of Q-methodological Preference Degree about the Subjects on School Curriculum Related to the Police & Security Administration - Centering around the Subject of Study on Gwang Ju and Jeon Nam Region - (경찰 및 경호 관련학과 전공교과목에 대한 Q방법론적 선호도 분석)

  • Kim, Pyong-Soo
    • Korean Security Journal
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    • no.28
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    • pp.33-56
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    • 2011
  • This study is to practice a analysis of Q-methodological preference degree about the subjects on school curriculum centering around the views of the policemen in active service who are with Gwang Ju and Jeon Nam region. Concretely, this study mixed the subjects on school curriculum related to the police administration of universities located in Gwang Ju and Jeon Nam region and abstracted the twenty seven items as the final question point. Above this, this study integrated the similar or repeated subjects and drew up the question items through seperation process among the different subjects. After this, this study selected the twenty policemen as a first P-sample in active service presently on fourth month in the year 2011. In this process, this study eliminated the materials of six policemen who replyed unhonestly and selected the materials of ten-four policemen as a final effective sample. Furthermore, this study applicated a principal component analysis. This study practiced the I.II.III types of a preference degree analysis of the subjects related to the police administration. the concrete results are as follows: In a I type, the positive consent was showed in the subjects of criminal law, criminal procedure law, criminal speciality law and so on. In a II type, the positive consent was showed in criminal investigation science, emergency measure, the art of self-defence, criminal law, criminal procedure law and so on. In a III type, the positive consent was showed in criminal science, criminal investigation science, criminal procedure law, introduction to police science, police ethics and so on. On this basis, this study concluded the following common opinions. Firstly the actual and evidencial subjects which the policemen in active service feel as the commons were criminal investigation, criminal science, police ethics, criminal speciality law, criminal law business, police administration science, police law practice, emergency measure, the art of self-defence, general rules of civil law, administrative law and so on.

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Analyzing Self-Introduction Letter of Freshmen at Korea National College of Agricultural and Fisheries by Using Semantic Network Analysis : Based on TF-IDF Analysis (언어네트워크분석을 활용한 한국농수산대학 신입생 자기소개서 분석 - TF-IDF 분석을 기초로 -)

  • Joo, J.S.;Lee, S.Y.;Kim, J.S.;Kim, S.H.;Park, N.B.
    • Journal of Practical Agriculture & Fisheries Research
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    • v.23 no.1
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    • pp.89-104
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    • 2021
  • Based on the TF-IDF weighted value that evaluates the importance of words that play a key role, the semantic network analysis(SNA) was conducted on the self-introduction letter of freshman at Korea National College of Agriculture and Fisheries(KNCAF) in 2020. The top three words calculated by TF-IDF weights were agriculture, mathematics, study (Q. 1), clubs, plants, friends (Q. 2), friends, clubs, opinions, (Q. 3), mushrooms, insects, and fathers (Q. 4). In the relationship between words, the words with high betweenness centrality are reason, high school, attending (Q. 1), garbage, high school, school (Q. 2), importance, misunderstanding, completion (Q.3), processing, feed, and farmhouse (Q. 4). The words with high degree centrality are high school, inquiry, grades (Q. 1), garbage, cleanup, class time (Q. 2), opinion, meetings, volunteer activities (Q.3), processing, space, and practice (Q. 4). The combination of words with high frequency of simultaneous appearances, that is, high correlation, appeared as 'certification - acquisition', 'problem - solution', 'science - life', and 'misunderstanding - concession'. In cluster analysis, the number of clusters obtained by the height of cluster dendrogram was 2(Q.1), 4(Q.2, 4) and 5(Q. 3). At this time, the cohesion in Cluster was high and the heterogeneity between Clusters was clearly shown.

An Analysis of Consumers' Problematic Complaining Behaviors and Firms' Reactions (소비자의 악성불평행동 분석 및 기업의 대처행동 조사 연구)

  • Huh, Kyung-Ok
    • Journal of Families and Better Life
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    • v.30 no.6
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    • pp.167-181
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    • 2012
  • This study analyzed consumer's harsh complaining behaviors and firm's reactions toward consumers' harsh complaining behavior, and investigated the differences in the firms' reactions according to the characteristics of counselors and customer service centers. In addition, this study attempted to find a strategy and provide guidance regarding consumer's harsh complaining behaviors. The results of this study are discussed below. First, consumer's harsh complaining attitudes were expressed by crude language, violent language, threats, personal attacks, and claims of a high-ranking social position. Consumer's directive, complaining behaviors were repeated on the telephone, and threats of prosecution or disclosure to the public, exposure of habitual product returns, and requests for interviews with superiorsat the representative firm were made. Second, a firm typologies according to its reaction style toward a consumer's harsh complaining behaviors were as follows: Group 1, having a neutral attitude toward consumers and preparation thoroughly regarding their demands; Group 2, having a negative attitude toward consumers and some degree of preparation toward consumers' demands; and finally, Group 3, having a positive attitude toward consumers but offering insufficient reparation regarding consumers' demands. Third, female counselors, counselors having a certified counselor's license, and those much experience working in labor work were more likely to be in Group 3. Male counselors, part-time counselors, and those having experience of many years were more likely to be in Group 2. Group 1 were more likely to have large number of workers at customer service centers, male counselors, and to have large numbers of educational training programs related to the reactions of consumers in the form of dissatisfaction, complaints, how to offer compensation for injuries to consumers, and issues related to PL(product liability). In addition, Group 1 also had more firm level welfare policies related to hight stress levels of consumer counselors and extra types of support regarding harsh consumers. However, Group 2 members were more likely to provide excessive compensation and rewards to harsh consumers. Finally, to react to consumer's harsh complaint efficiently, it was suggested that firms should not treat consumers as harsh consumers, should react to consumers' complaints sincerely, and should take precautionary management efforts as regards consumer dissatisfaction based on better quality control of products. In addition, it was deemed necessary to formulate a management strategy to train competent consumer counselors with a high quality of counselor skill, having standardized and consistent reaction guidance toward consumer complaints and thorough knowledge of compensation rules for consumer injuries and subsequent guidance.

Analysis on Korean Fund of Funds (국내 모태펀드의 성과에 대한 연구)

  • KANG, Won
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.14 no.6
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    • pp.1-9
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    • 2019
  • Since 2005, Korea Venture Investment Corp. (KVIC) has been managing Korean Fund of Funds (KFoF) which helped greatly the domestic venture capitals create their private funds. Its contribution, however, is not limited fetching the pump. When KFoF decides to invest in VC funds, it demands very strict rules the VC funds need to follow before and after their investments in private equities. Whether this tight control of investments does hinder GPs' creativity or rather enhance GPs' transparency and professionalism is an open question subject to empirical tests. If KFoF is only fetching the pump, and neither fund size or time horizon improves VC funds' return rates, then KFoF's involvement in VC funds should not be positively related to VC funds' return rates. If, on the other hand, KFoF harms GPs' creativity, KFoF's involvement should be negatively related to VC funds' performances. Still, if KFoF promotes GPs' transparency and professionalism, its presence in VC funds should positively affect the returns earned by VC funds. Even when KFoF only got to get quality VC funds because those GPs good enough to stand up to the tight conditions set forth by KFoF, the empirical implication will yield the same results. In this article, empirical tests are carried out using the data provided by Korea Venture Capital Association. The VC funds formed and liquidated from 2000 to 2018 are selected for the tests. The results show that VC funds with the presence of KFoF exceed VC funds without KFoF in returns, which supports the hypothesis that KFoF enhances transparency and professionalism of VC funds.

Analysis on the Legal Control Levels and GHS Classification Information Status for Strongly Acidic Hazardous Materials (강산성 유해화학물질의 법적관리 수준 및 GHS 분류정보 제공 실태분석 연구)

  • Lee, Kwon Seob;Jo, Ji Hoon;Park, Jin Woo;Song, Se Wook
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.23 no.4
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    • pp.384-392
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    • 2013
  • Objective: This study inspected incident cases, legal control levels, and GHS(Globally Harmonized System of Classification and Labeling of Chemicals) classification results of strong acids such as hydrogen fluoride, hydrogen chloride, nitric acid, and sulfuric acid, which have been responsible for many recent chemical accidents. As a result, it is deemed necessary for legal control levels of these strong acids to be revised and GHS classification be managed nation-wide. Methods: This study inspected incident cases and legal control levels for strong acids such as hydrogen fluoride, hydrogen chloride, nitric acid, and sulfuric acid. The study analyzed and compared chemical information status and GHS classification results. Results: There were 76 domestic incidents involving strongly acidic hazardous materials over the five years between 2007 and 2011. They include 37 leakage incidents(46.7%) within a workplace, 30 leakage incidents(39.5%) during transportation, and nine leakage incidents(13.8%) following an explosion. The strongly acidic materials in question are defined and controlled as toxic chemicals according to the classes of Substances Requiring Preparation for Accidents, Managed Hazardous Substance, Hazardous Chemical(corrosive) as set forth under the Enforcement Decree of the Toxic Chemicals Control Act and Rules on Occupational Safety and Health Standards of Occupational Safety and Health Act. Among them, nitric acid is solely controlled as a class 6 hazardous material, oxidizing liquid, under the Hazardous Chemicals Control Act. The classification results of the EU ECHA(European Chemicals Agency) CLP(Commission Regulation(EC) No. 790/2009 of 10 August 2009, for the purposes of its adaptation to technical and scientific progress, Regulation(EC) No 1272/2008 of the European Parliament and of the Council on classification, labeling and packaging of substances and mixtures) and NIER (National Institute of Environmental Research) are almost identical for the three chemicals, with the exception of sulfuric acid. Much of the classification information of NITE (National Institute of Technology and Evaluation) and KOSHA(Korea Occupational Safety and Health Agency, KOSHA) is the same. NIER provides 12(41.4%) out of 29 classifications, as does KOSHA.

The Study of Security System for Candidates for the 17th President (제17대 대통령선거후보자 경호제도에 관한 연구)

  • Kim, Doo-Hyun
    • Korean Security Journal
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    • no.14
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    • pp.43-67
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    • 2007
  • This is the study of efficient security system for candidates for the 17th President. The president election will be held in 20 countries this year. As conflicts between interest groups are expected to emerge, they are afraid of accidental raid in the campaign tour in addition to revival of regionalism and possibility of confrontation between interest groups with issues of anti-FTA In our country. The purpose of this study is to suggest appropriate method through study of security system for president candidate as just 6 months are left for the 17th president election. Also this study covers security environment for the president election, principle of security, and theoretical study for cause of terror, security system domestic and abroad and its analysis and how to provide the efficient security for president candidate. Therefore first, for desirable security the security should be provided by professional org like president security department. Second, combined security for target by current rules should be done. Fourth, total security is necessary to prevent security threats in advance. Third, the public security should be provided for every president candidates. Fifth, example of secret service in America should be studied and economical security should be considered Sixth, we should increase the use of Security Company and martial artists.

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Study concerning the survey scope of the product for the Application of the U.S. Antidumping Law (미국반덤핑법 적용을 위한 상품의 조사범위에 관한 연구)

  • Han, Na-Hee;Ha, Choong-Lyong
    • International Commerce and Information Review
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    • v.13 no.4
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    • pp.375-397
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    • 2011
  • Having ahead the Korea-US FfA come into effect by beginning of the 2012, the interest to U.S. trade law has been highly increased. The abuse of U.S. antidumping measures, especially, have been alleged by many developed countries, that's why it need to be studied. For initiating antidumping investigation, the scope of "subject merchandise" has to be determinated. But there is no regulation about the term "subject merchandise(or product under consideration)" on WTO Antidumping Agreement as well as U.S. Antidumping Law. U.S. antidumping law defines domestic like product as "a product that is like, or in the absence of like, most similar in characteristics and uses with, the article subject to an investigation under this title". Thus, the reference point from which the like product analysis begins is "the article subject to an investigation". The Department of Commerce should interpret the subject merchandise in accordance with customary rules, beginning with its ordinary meaning. The note of caution is that the DOC generally exercises 'broad discretion to define and clarify the scope of an antidumping investigation in a manner which reflects the intent of the petition. This paper investigates the survey scope of product in U.S. antidumping law through related regulations and cases. In addition, it was carefully examined because the scope of subject merchandise has effect on antidumping duty order.

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The North Korean Female Refugees' Personality and Psychological Adaptation (여성 새터민의 성격유형에 따른 심리적응)

  • Young Mi Sohn;Sook Jung Kang;Cheong Yeul Park
    • Korean Journal of Culture and Social Issue
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    • v.20 no.1
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    • pp.19-44
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    • 2014
  • This study was conducted to investigate the types of personality of North Korean female refugees, which were extracted from the T-scores of SPFQ(scales of the Sixteen Personality Factor Questionnaire) and psychological adaptation. For this, The data of 158 North Korean female refugees located in Seoul Yangchun-Gu and Gayang-Gu was analyzed. The results were as follows. Firstly, the ratio of over 65T in ego-strength, self-control, social-boldness, anxiety scales and under 34T in abstractedness and openness to change scales was higher than in other scales. Secondly, there were statistically significant differences in personality characteristics based on the demographic variables especially age and the term of residence in South Korea. Thirdly, three distinct groups were extracted from the K-means cluster analysis. The first group was characterized with emotional-unstability and negative emotionality. And the North Korean female refugees in the second group hesitated to enter into and maintain proper relationships with south korean, while they were unlikely to accept norms and rules in South Korea. The third group, characterized by higher emotional stability, ego-strength, and agreeableness, was met normal range in all the scale of SPFQ. Finally, each three groups were showed statistically significant differences in psychological adaptation scales(self-identity and resilience). We expected that these results contributed to explore the psychological and the political plans for North Korean female refugees' settlement in South Korea.

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A Topic Modeling-based Recommender System Considering Changes in User Preferences (고객 선호 변화를 고려한 토픽 모델링 기반 추천 시스템)

  • Kang, So Young;Kim, Jae Kyeong;Choi, Il Young;Kang, Chang Dong
    • Journal of Intelligence and Information Systems
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    • v.26 no.2
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    • pp.43-56
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    • 2020
  • Recommender systems help users make the best choice among various options. Especially, recommender systems play important roles in internet sites as digital information is generated innumerable every second. Many studies on recommender systems have focused on an accurate recommendation. However, there are some problems to overcome in order for the recommendation system to be commercially successful. First, there is a lack of transparency in the recommender system. That is, users cannot know why products are recommended. Second, the recommender system cannot immediately reflect changes in user preferences. That is, although the preference of the user's product changes over time, the recommender system must rebuild the model to reflect the user's preference. Therefore, in this study, we proposed a recommendation methodology using topic modeling and sequential association rule mining to solve these problems from review data. Product reviews provide useful information for recommendations because product reviews include not only rating of the product but also various contents such as user experiences and emotional state. So, reviews imply user preference for the product. So, topic modeling is useful for explaining why items are recommended to users. In addition, sequential association rule mining is useful for identifying changes in user preferences. The proposed methodology is largely divided into two phases. The first phase is to create user profile based on topic modeling. After extracting topics from user reviews on products, user profile on topics is created. The second phase is to recommend products using sequential rules that appear in buying behaviors of users as time passes. The buying behaviors are derived from a change in the topic of each user. A collaborative filtering-based recommendation system was developed as a benchmark system, and we compared the performance of the proposed methodology with that of the collaborative filtering-based recommendation system using Amazon's review dataset. As evaluation metrics, accuracy, recall, precision, and F1 were used. For topic modeling, collapsed Gibbs sampling was conducted. And we extracted 15 topics. Looking at the main topics, topic 1, top 3, topic 4, topic 7, topic 9, topic 13, topic 14 are related to "comedy shows", "high-teen drama series", "crime investigation drama", "horror theme", "British drama", "medical drama", "science fiction drama", respectively. As a result of comparative analysis, the proposed methodology outperformed the collaborative filtering-based recommendation system. From the results, we found that the time just prior to the recommendation was very important for inferring changes in user preference. Therefore, the proposed methodology not only can secure the transparency of the recommender system but also can reflect the user's preferences that change over time. However, the proposed methodology has some limitations. The proposed methodology cannot recommend product elaborately if the number of products included in the topic is large. In addition, the number of sequential patterns is small because the number of topics is too small. Therefore, future research needs to consider these limitations.