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Knowledge Distillation with Adversarial Samples Supporting Decision Boundary
No full textMany recent works on knowledge distillation have provided ways to transfer the knowledge of a trained network for improving the learning process of a new one, but finding a good technique for knowledge distillation is still an open problem. In this paper, we provide a new perspective based on a decision boundary, which is one of the most important component of a classifier. The generalization performance of a classifier is closely related to the adequacy of its decision boundary, so a good classifier bears a good decision boundary. Therefore, transferring information closely related to the decision boundary can be a good attempt for knowledge distillation. To realize this goal, we utilize an adversarial attack to discover samples supporting a decision boundary. Based on this idea, to transfer more accurate information about the decision boundary, the proposed algorithm trains a student classifier based on the adversarial samples supporting the decision boundary. Experiments show that the proposed method indeed improves knowledge distillation and achieves the state-of-the-arts performance
Analysis of China’s cultural industry policy - with regard to the concept of ‘soft power’ -
No full textChina has started to focus on the development of the cultural industry since the end of Jiang Zemin(江澤民)’s reign. The government of Hu Jintao(胡錦濤) paid attention to ‘soft power’ and by establishing the “Cultural Industry Enhancement Plan of China”, has actually begun to develop the cultural industry. And the government of Xi Jinping(習近平) reinforced the development further on by connecting government’s policies, such as ‘China Dream(中國夢)’, ‘the rise of a great nation(大國崛起)’, and ‘one belt one road(一帶一路)’. China has already become the world’s largest producer of cultural goods, however regarding soft power, is still in very low position. It is because of the impatient cultural development and the concept of cultural security is blocking the growth of soft power. When the THAAD deployment was decided on Korea, the means of retaliation by China was ‘culture’. By invoking ‘Korean limit(限韓令)-the command to block Koreans from China’, China has blocked Korean cultural artists and products to enter China. After going through a long process of two years, Koreans have come to recognize that China is using its predatory means to develop its cultural industry, and in Korea, anti-Semitic sentiment has become prevalent. The Confucius Institute(孔子學院) is also receiving criticism from the international community for cultural invasion, undermining the freedom of scholarship, and the spread of Chineseism. Cultural industry is an important field to cultivate soft power, and rather, as the soft power increases, the progress of cultural industry follows. China must be able to grow its soft power, to be recognized as the leader of the international community, and for well development of the country
IFRS 적용을 위한 종신보험의 보험계약부채 공정가치 산출에 관한 연구
No full text본 연구는 IFRS 17 전환방법 중 공정가치법을 사용하여 종신보험의 대표적인 보유계약에 대한 전환 시 보험계약마진() 및 IFRS 17 보험계약부채를 직접적으로 산출한 후 현행 책임준비금과의 차이를 분석하였다.
공정가치법 적용 시 할인율에 채무불이행위험을 반영해야하기 때문에 본 연구 결과 분석대상 종신보험계약의 전환일의 보험계약부채 공정가치가 IFRS 17 이행현금흐름보다 작게 산출되어 = 0의 값을 갖는 것으로 분석되었다. 기본분석 대상인 예정이율 5.5%인 금리확정형 종신보험계약은 IFRS 17 전환 시 부채가 약 8.0%p 증가하나, 예정이율 3.75%와 최저보증이율 2.5%인 금리연동형 종신보험계약은 전환 시 부채가 현행 책임준비금보다 약 4.5%p 작아지는 것으로 분석되었다. 본 연구에서는 순채무불이행위험 적용율의 변동, 자본비용률의 변동, 시장금리의 변동, 장기수렴금리 변동 및 종신보험상품 변경 등에 따른 민감도분석도 수행하였다. Using the fair value approach for IFRS 17 transition, this study directly computes the contractual service margin(CSM) and the insurance contract liability under IFRS 17 for representative Whole Life product contracts, and then compares them with the current reserves. Because a non-performance risk should reflect the discount rate used in fair value approach, the fair value at the transition date is lower than the fulfillment cash flow under IFRS 17, and so CSM is equal to zero. As a result, IFRS 17 liability of the fixed interest whole life insurance contract(5.5% of the assumed rate) is increased by 8.0%p compared to the current reserve, but IFRS 17 liability of the interest sensitive whole life insurance contract(3.75% of the assumed rate and 2.5% of the minimum guaranteed rate) is decreased by 4.5%p at the transition date. This study also carries out the sensitivity analysis for changes of main variables
The Effects of Equestrian Athletes’ Perceived Horse-rider Relationship on Sport Confidence and Performance
No full textThe purpose of this study was to explore the educational information which is needed for establishing the horse-rider relationship at the equestrian education field, provide a basic data for improving the competitiveness and professionalism of equestrian athletes. The subjects were selected as the dressage and show-jumping riders, and the samples were extracted using the convenience sampling method.
Using the PASW ver. 18.0 program, the statistical methods used in the analysis for this study were frequency analysis, exploratory factor analysis, Cronbach's alpha test, independent sample t-test, one-way ANOVA, correlation analysis, simple and multiple regression analysis.
The results of this study were as follows: First, according to the demographic characteristics of equestrian athletes, there were statistically significant differences in horse-rider relationship, sport confidence and performance. Second, communication and respect, the sub-factors of equestrian athletes’ perceived horse-rider relationship, had significant effects on sport confidence. However, compatibility and trust had no statistically significant effects on sport confidence. Third, compatibility, respect and trust, the sub-factors of equestrian athletes’ perceived horse-rider relationship, had significant effects on performance. However, communication had no statistically significant effect on performance. Fourth, the equestrian athletes’ sport confidence had a significant effect on performance
A Grounded Theoretical Approach to Alleviate the Ability of the Batter to be Higher than the Low Pitcher’s Ability in Korean Professional Baseball
No full textThe purpose of this study is to derive the factors that can mitigate the irregularity between the ability of the pitcher and the ability of the hitter that are raised in Korean professional baseball through ground theory. In order to carry out this study, 6 participants including current professional baseball players, leaders and related persons who experienced Korean professional baseball, and 2 sports journalists and columnists with insight into Korean professional baseball were set as the participants. The data collected were analyzed through open coding, axis coding, and selective coding in accordance with the analysis method of the “grounded theory of Strauss & Corbin(1990)”. First, a total of 28 concepts, 14 subcategories, and 6 top categories were derived through open coating. Second, the six paradigms of causal conditions, situational context, central phenomena, intervening conditions, interaction strategies, and the consequences were identified in relation to each other. Third, through the selection coding, we tried to get a way to mitigate the imbalance between the pitcher 's ability and the hitter' s ability in Korean professional baseball. In this study, it is meaningful to suggest the data that Korean professional baseball can develop with the change of official ball, the development of pitcher, and the change of system and rule
Effective Datapath Logic Extraction Techniques Using Connection Vectors
No full textDatapath macros are essential components of integrated circuits. The high regularity of datapaths allows compact layout design during placement. In some cases, datapath macros are manually pre-designed and pre-placed. However, datapath macros are frequently mixed with other circuits and they need to be extracted to capitalise on their regularity. In this study, the cells of a given circuit are accurately classified based on their size and pin information, and novel connection vectors to represent aspects of the connectivity among the cells have been proposed. By using the connection vectors of the cells, the similarity of connections is evaluated to extract potential datapath stages that constitute functional steps of a datapath. Two new efficient datapath logic extraction techniques (EDLETs) have been implemented based on the connection vectors for extracting potential datapaths in the circuit. One is the procedure-based method, and the other is the machine learning-based method. When compared with state-of-the-art methods, the experiments show that both the procedure-based and the learning-based methods proposed in this study efficiently extract potential datapaths from the Modified International Symposium on Physical Design (MISPD) 2011 Datapath Benchmark Suite. The extraction results of the proposed EDLET can be forwarded to a datapath placement tool for placing datapaths with a regular structure
Simulation Modeling for Production Scheduling under Make-To-Order Production Environment : Focusing on the Flat Glass Production Environment
No full textThe manufacturing companies under Make-To-Order (MTO) production environment face highly variable requirements of the customers. It makes them difficult to establish preemptive production strategy through inventory management and demand forecasting. Therefore, the ability to establish an optimal production schedule that incorporates the various requirements of the customers is emphasized as the key success factor.
In this study, we suggest a process of designing the simulation model for establishing production schedule and apply this model to the case of a flat glass processing company. The flat glass manufacturing industry is under MTO production environment. Academic research of flat glass industry is focused on minimizing the waste in the cutting process. In addition, in the practical view, the flat glass manufacturing companies tend to establish the production schedule based on the intuition of production manager and it results in failure of meeting the due date. Based on these findings, the case study aims to present the process of drawing up a production schedule through simulation modeling. The actual data of Korean flat glass processing company were used to make a monthly production schedule. To do this, five scenarios based on dispatching rules are considered and each scenario is evaluated by three key performance indicators for delivery compliance. We used B2MML (Business To Manufacturing Markup Language) schema for integrating manufacturing systems and simulations are carried out by using SIMIO simulation software. The results provide the basis for determining a suitable production schedule from the production manager's perspective
A Study on Costume Jewelry Design Attributes and Consumer Purchasing Behavior of Millennial Generation
No full text오늘날 전 세계는 역사상 규모가 크고 강한 영향력을 갖고 있는 밀레니얼 소비 세대에게 주목하고 있다. 현재 소비시장은 소비의 주체였던 베이비부머(Babyboomer)세대를 지나 밀레니얼세대(Millennial Generation)를 주목하고 있으며, 많은 기업들은 밀레니얼세대를 겨냥하여 주얼리 제품을 제작하고, 마케팅을 하고 있다. 특히, 패션으로 개성을 강조하여 자기표현을 보여주고 싶어 하는 20～30대인 밀레니얼세대는 값싼 모조석이나 준보석인 다양하고 트렌디한 코스튬 주얼리에 대한 소비 관심을 집중적으로 보여준다. 따라서 밀레니얼세대를 이해하고 공략하는 것이 관련 산업 분야의 경쟁력을 강화시키기 위한 중요한 요소라고 할 수 있다. 따라서 본 연구는 밀레니얼세대의 중요성을 인식하고 밀레니얼세대가 지니고 있는 코스튬 주얼리(Costum Jewelry) 디자인 속성과 소비자 구매행동에 미치는 영향을 연구 분석하여 디자인 개발과 업계의 마케팅 전략에 도움을 주는데 목적을 두고 있다.
연구 방법으로 첫째, 밀레니얼세대와 코스튬 주얼리의 개념과 특성 및 디자인 속성을 학위논문과 인터넷 기사, 전문 도서 등을 통해 이론적 고찰을 하였다. 둘째, 소비자 구매 행동을 기초 통계적 분석을 위해 온라인 설문 조사를 진행하였다. 여러 선행 연구 자료들을 통해 2018년도 기준으로 밀레니얼세대를 1984년～2000년 사이에 출생한 만 18세～만34세로 정의하고, 이에 해당되는 남녀 184명을 대상으로 온라인 설문조사를 진행하였다. 연구범위는 현재 침체 되어 있는 주얼리 시장의 대안이자 저렴한 가격과 다양한 디자인으로 만족감을 느낄 수 있으며, 급격하게 발전하고 있는 코스튬 주얼리와 이미 최대 고객층으로 등장해 모든 산업과 기업의 마케팅과 제품생산 등을 변화시키고 있는 소비가 강한 세대인 밀레니얼세대로 국내지역의 거주자로 한정하였다. 밀레니얼세대의 코스튬 주얼리 디자인 속성 및 소비자 구매행동에 다음과 같은 결과가 도출되었다.
첫째, 인구 통계학적 특성의 빈도 분석은 코스튬 주얼리 구매 경험이 있는 남녀를 대상으로 조사한 결과, 남성에 비하여 여성의 코스튬 주얼리 구매율이 훨씬 높은 것으로 조사되었다.
둘째, 코스튬 주얼리 디자인 속성 중 밀레니얼세대의 구매행동에 미치는 영향은 심미적 속성이 가장 높게 나타났다. 응답자는 그중 형태에 가장 많은 관심을 보이는 것으로 나타났으며, 소재보다는 형태와 색상의 디자인적 요소에 중요성을 보이는 것으로 조사되었다. 그리고 기능적 속성 중 착용감이 가장 중요하며, 상징적 속성에서는 소유로 인한 이미지 상승의 중요성이 가장 높은 것으로 조사되었다. 이처럼 기업이 밀레니얼세대를 타깃으로 마케팅 전략과 디자인을 구성할 때 이러한 요소들을 고려할 것으로 판단된다.
셋째, 코스튬 주얼리가 밀레니얼세대 구매행동에 미치는 영향은 고가의 브랜드 선호보다는 착용감과 자신을 중심으로 한 중저가 가격대를 선호하는 것으로 나타났다. 밀레니얼세대가 코스튬 주얼리를 착용하는 목적으로 개성을 표현하기 위한 구입이 가장 높게 나타났으며, 타인의 의견보다는 자신의 만족을 중요시하는 것으로 나타났다. 마지막으로 성장기에 디지털과 함께 자라난 밀레니얼세대는 정보 탐색시 온라인에서 정보 탐색을 하고 오프라인 로드숍 매장에서 구입하는 것으로 조사되었다.
따라서 다양하고 빠르게 변화하는 코스튬 주얼리 산업은 주 소비층인 밀레니얼세대의 심미적인 속성과 소비 성향에 대한 연구를 중심으로 주얼리 디자인 개발을 진행한다면 향후 주얼리 산업이 성장하는데 많은 도움을 줄 것이라고 사료된다.
Today, the whole world is paying attention to the millennial generation that has a large and strong influence in history. The current consumer market is looking at the millennial generation through the consumer baby boomers, and many companies are making and marketing jewelry products aimed at the millennial generation. In particular, the millennial generation, who are in their 20s and 30s who want to express their identity by emphasizing individuality as a fashion, focuses attention on the consumption of diverse and trendy costume jewelry, which is cheap modest stone and semi-precious stones. Understanding and pursuing the millennial generation is therefore an important factor in enhancing the competitiveness of the related industries.
The purpose of this study is to recognize the importance of the millennial generation and to help the design development and marketing strategy of the jewelry industry by studying and analyzing the attributes of the costume jewelry design of the millennial generation and its effect on consumer purchasing behavior.
As research methods, firstly, the concept, characteristics and design attributes of the millennial generation and costume jewelry were studied through theses, internet articles, and professional books. Secondly, online questionnaires were conducted to proceed basic statistical analysis on consumer purchase behavior. In the study, respondents of the online questionnaire survey were 184 men and women who were born between 1984 and 2000 at the age of 18 to 34 years as of 2018. The research range was first, costume jewelry which is an alternative to the currently stagnant jewelry market, and gives satisfion to customers with its low price and various designs. Second is millenial generation of domestic market that rapidly developing and has already become the largest customer base, changing marketing and production of all industries and companies.
The following results were obtained in the costume jewelry design attributes and consumer purchasing behavior of the millennial generation.
First, the analysis of the frequency of demographic characteristics revealed that women’s costume jewelry purchasing rate was much higher than that of men.
Second, the influence of the costume jewelry design attributes on purchase behavior of the millennial generation was the highest in aesthetic attribute. Respondents showed the most interest in of costume jewelry, and design and color was important than material. The most important functional attribute is comfort, and image enhancement due to the jewelry ownership showed the highest importance among symbolic attributes. In this way, it is considered that companies will consider these factors when designing marketing strategy and design targeting the millennial generation.
Third, at the effect of costume jewelry on the purchasing behavior of the millennial generation, the mid and low-priced brands centered on themselves were more preferred than high-priced brands. For the purpose of wearing costume jewelry, the millennial generation showed the highest purchase to express their personality, and showed importance of their own satisfaction rather than the opinions of others. Lastly, the millennial generation, which grew up with digital in their growth phase, were once searching for information, searching for information online, and purchasing costume jewelry at an offline road shop.
Therefore, it is thought that various and rapidly changing costume jewelry industry will help the jewelry industry to grow in the future if it develops jewelry design centering on the study on the aesthetic properties and consumption propensity of the main consumer of the millennial generation
Validation of the Korean Version of Unethical Pro-Supervisor Behavior Scale(UPSB-K)
No full text직원이 자신의 상사를 위해 비윤리적인 행동에 나서는 사례가 국내외에서 빈번하게 발생하고 있다. 이런 비윤리적 친상사 행동은 직원, 고객, 조직, 주주 모두에게 피해를 입힌다. 본 연구를 통해 한국에서 비윤리적 친상사 행동을 제대로 측정할 수 있는 척도를 개발하고 타당화하고자 했다. 첫 번째 척도 개발 단계에서, 비윤리적 친상사 행동을 측정하기 위해 이미 해외에서 개발, 검증된 척도를 검토해 한국어로 번안하고 전문가 그룹의 검증을 통해 내용타당도를 검증했다. 두 번째 척도 타당화 단계에서, 다양한 업종에서 근무하는 국내 직장인 185명을 대상으로 설문조사를 실시하고 개발한 한국어판 비윤리적 친상사 행동 척도의 신뢰도와 다양한 타당도를 검증했다. 먼저 신뢰도를 검증하기 위해 측정문항의 Cronbach α값을 확인했다. 다음으로 구인타당도를 검증하기 위해 탐색적·확인적 요인분석을 실시했다. 그리고 판별타당도를 검증하기 위해 비윤리적 친상사 행동과 각 유사 개념(비윤리적 친조직 행동, 조직지향 조직시민행동, 상사지향 조직시민행동, 상사일탈)을 포함하는 개별 측정모형에 대해 확인적 요인분석 및 χ2 차이검증을 실시했다. 마지막으로 준거관련 타당도를 검증하기 위해, 선행연구에서 비윤리적 친상사 행동의 원인으로 알려진 상사동일시와 비윤리적 친조직 행동과의 관계를 분석했다. 분석결과에 따르면, 한국어판 비윤리적 친상사 행동은 한국에서 비윤리적 친상사 행동을 측정하고 연구하는데 적합한 척도로 나타났다. 한국어판 비윤리적 친상사 행동 척도의 개발, 타당화를 통해 한국에서 비윤리적 친상사 행동에 관한 연구를 수행할 수 있는 토대가 마련되었다는 점에서 본 연구의 의의를 찾을 수 있다.
The purpose of this study was to develop and validate the Korean version of Unethical Pro-supervisor Behavior Scale(UPSB-K). In the first step of developing the UPSB-K, we reviewed UPSB scales that was already developed and validated to measure UPSB in foreign studies and then we translated them into Korean and examined the content validity of them with HR experts. In the second step of validating the UPSB-K, we examined the reliability and various validity of the UPSB-K using the responses of 185 workers from a variety of organizations in Korea. First, we examined the Cronbach"s α value to validate the reliability of the UPSB-K. Second, we conducted an exploratory factor analysis and confirmed factor analysis to validate the construct validity of the UPSB-K. Third, we conducted confirmed factor analyses and χ2 difference tests of each measurement model that include the UPSB-K and other similar constructs in human resource management such as unethical pro-organizational behavior(UPB), organization-focused citizenship behavior(OCB-O), supervisor-focused citizenship behavior(OCB-S), supervisor-directed deviance to validate the discriminant validity of the UPSB-K. Lastly, we investigated the relationship between the supervisor identification and the UPSB-K to validate the criterion-related validity of the UPSB-K. In the previous researches, it was verified that the UPSB was positively influenced by the supervisor identification. As a result, it was found that the UPSB-K could be the most suitable scale to measure UPSB in Korea. The implication of this study is to prepare the ground for future researches on the UPSB in Korea
Delamination-Free Multifunctional Separator for Long-Term Stability of Lithium-Ion Batteries
No full textNext-generation lithium-ion batteries (LIBs) that satisfy the requirements for an electric vehicle energy source should demonstrate high reliability and safety for long-term high-energy-density operation. This inevitably calls for a novel approach to advance major components such as the separator. Herein, a separator is designed and fabricated via application of multilayer functional coating on both sides of a polyethylene separator. The multilayer-coated separator (MCS) has a porous structure that does not interfere with lithium ion diffusion and exhibits superior heat resistance, high electrolyte uptake, and persistent adhesion with the electrode. More importantly, it enables high capacity retention and reduced impedance build up during cycling when used in a coin or pouch cell. These imply its promising application in energy sources requiring long-term stability. Fabrication of the MCS without the use of organic solvents is not only environmentally beneficial but also effective at cost reduction. This approach paves the way for the separator, which has long been considered an inactive major component of LIBs, to become an active contributor to the energy density toward achieving longer cycle stability