• Journal of the Korean Data and Information Science Society
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• v.26 no.4
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• pp.865-874
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• 2015

This research is to comprehensively evaluate offensive abilities of baseball players who are expected to produce as many runs as possible by their hitting and running. To this end, we establish a simulation program to obtain the so-called scoring index of an individual player. The scoring index of a player is defined as an expected number of runs scored by an imaginary team that is composed of nine copies of the player. As a simulation input, we use 2014 season data of Korean pro-baseball. As a result, we present the scoring indices of top 10 players, 9 Korean pro-baseball teams, and overall 2014 season. The scoring index can serve as a comprehensive evaluation of offensive ability of a player or a team, selection of players for a (national) team or for a starting line-up, estimation of player's worth, and so on.

• Journal of the Korean Data and Information Science Society
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• v.27 no.3
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• pp.677-687
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• 2016

Among lots of sabermetric statistics for baseball batters' ability, the wins above replacement (WAR) is the most popular statistic in MLB. However, there exists a difficulty applying WAR to KBO, since KBO data do not have position adjustment, league adjustment and park factor which are essential in calculating WAR. In this paper, using five statistics for both KBO and MLB qualified batters, we propose hitting ability index (HAI), an alternative sabermetric indices to represent batters' ability. Comparing HAI with WAR of MLB batters, we evaluate the validity of HAI and then applied HAI to 2015 KBO data in which HAI is analyzed statistically with respect to different teams, ages, and positions. Moreover, the linear relationship between KBO batter's HAI and their annual salary is discussed. Grouping 46 KBO batters based on confidence region of the regression model for annual salary, we also statistically investigate batter's annual salary in these groups with respect to several factors.

• The Korean Journal of Applied Statistics
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• v.29 no.7
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• pp.1271-1281
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• 2016

Wins above replacement (WAR) is one of the most widely used statistic among sabermatrics statistics that measure the ability of a batter in baseball. WAR has a great advantage that is to represent the attack power of the player and the base running ability, defensive ability as a single value. In this study, we proposed a hitter ability index using the sabermetrics statistics that can replace WAR based on Korea Baseball Record Data of the last three years (2013-2015). First, we calculated Batter ability index through the arithmetic mean method, the weighted average method, principal component regression and selected the method that had high correlation with WAR.

• Journal of the Korean Data and Information Science Society
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• v.25 no.2
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• pp.349-356
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• 2014

In baseball, sabermetric batting statistics are used to compare an offensive performance of players. There exist dozens of sabermetric statistics, but baseball fans don't like the complexity of an abundance of measures. This paper provides a batting grade index (BGI) using principal component based on eight batting statistics. These are OPS, ISO, SECA, TA, RC, RC/27, wOBA and XR. We show that how standardized batting statistics are aggregated and weighted to arrive at a single composite measure of BGI. Also our result allows for segmentation of players into groups using the K-means clustering algorithm.

• Journal of the Korean Data and Information Science Society
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• v.28 no.6
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• pp.1501-1509
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• 2017

Wins above replacement (WAR) is the most commonly used statistics of the sabermetrics that measure baseball players' abilities. The advantage of a WAR is that it enables to compare performances of players even though they have different roles such as pitcher and hitter. However, WAR is difficult to obtain with common records. Thus, a past studies (Lee and Kim, 2016) suggested the batting ability index to determine the ability of the batter focused on the sabermetrics statistics WAR. In this paper, we selected the best hitter with applying Korea baseball 2016 data based on a proposed model and then observed a total raking of others according to BAI. We are assured that BAI is very excellent statistics through comparing BAI and WAR which is in the spotlight in evaluating performances of players.

• Journal of the Korean Data and Information Science Society
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• v.26 no.1
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• pp.197-207
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• 2015

In baseball game, the hitting ability of batter is frequently assessed by a batting average, a run batted in, a home run, a run scored, an on-base percentage, etc. Recently, more comprehensive indicators such as OPS, ISO, SECA, TA, RC and XR are often used. But, these measures generally shows large deviations since they are calculated from the data for a certain period of time, and they are not an estimate of a population parameter, either. In this paper, we will presume the pure hitting ability of the korea professional baseball players as a parameter which is depend upon at bat. We will estimate the parameter by using the Bayesian method.

• Journal of Digital Convergence
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• v.19 no.5
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• pp.365-373
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• 2021

This work aims to derive data-based requirements by analyzing the importance and performance of media literacy in early childhood animations. For this, a survey was conducted on parents with young children after drawing questions of assessment items through expert focus group interviews (FGI). The analytical instruments, Borich Needs Formula formulation and The Locus for Focus Model were used together to improve accuracy. Based on the results, it is meaningful in that it recognized the demand of the inmates for children's education animation and prepared systematic indicators for it.

• Journal of the Korean Data and Information Science Society
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• v.28 no.4
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• pp.863-874
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• 2017

Wins above replacement (WAR) is the most commonly used statistics of the many sabermetrics that measure baseball players' abilities. The advantage of a WAR is that it enables to compare performances of players even though they have different roles such as pitcher and hitter. However, WAR is difficult to obtain with common records. Thus, in this paper, we have calculated the sabermetrics variable based on Korean professional baseball records for the past three years (2014-2016). Using these variables, we suggest starting pitcher ability index that can replace WAR. Starting pitcher ability index was calculated by means of arithmetic mean, weighted average and principal component regression. Then, compared to the WAR, the most relevant method was selected, which would be useful to identify for the starting pitcher ability.

• The Journal of Korean Philosophical History
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• no.41
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• pp.223-246
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• 2014

The main concern of classical Confucianism, which has Kongzi as its main thinker, is how one can attain moral perfection. In this respect, all of the Confucian teachings can be characterized as an attempt to expound the nature of sages or gentlemen who are believed to attain moral perfection. In Confucianism, de 德 (moral virtue) refers to moral principles or the attributes of things, and it also signifies moral qualities and abilities of humans which are believed to be bestowed by the moral source. Kongzi substantiated the details and practical methods of de, through his teachings of ren as its internal principle and li as its external form. in this way, he put a special emphasis on moral practicality of de. To study Kongzi's practical moral teachings focusing on de can be understood as a reflection on current educational issues.

• 한국정보교육학회:학술대회논문집
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• 2004.08a
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• pp.181-188
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• 2004

정보화된 미래사회를 준비하기 위하여, 우리나라에서는 실과의 한 영역과 학교재량시간을 통하여 컴퓨터 교육을 하고 있다. 그러나 실과 교육과정은 지나치게 기능 위주의 내용으로 되어있고, 학교 재량시간을 이용한 컴퓨터 교육에서는 타자연습이나 컴퓨터 활용교육만을 강조하고 있다. 이러한 교육은 컴퓨터와 친숙해지는 데는 도움을 줄 수 있지만, 고차원적인 사고력을 지닌 학생을 교육하는 데는 도움이 되지 못한다. 특별히 컴퓨터의 무한한 사용 가능성을 이용하여 창의적 문제 해결력을 기르는 교육은 매우 필요하다 하겠다. 이러한 문제를 해결하기 위하여 문제 해결 능력 교육, 즉 문제 상황이 주어지고 이것을 해결하는 프로그래밍 교육이 매우 유용하나, 지금까지의 프로그래밍 교육은 지나치게 언어 기술교육에 초점을 두고, 단순 반복과 암기, 아동의 발달단계를 고려하지 않음으로 인해 오히려 창의성을 해치고 학습의 흥미도를 저하시켜왔다. 이에 본 연구에서는 학생들 수준에 맞춰 구체적인 결과물이 보이고, 쉽고 흥미롭게 학습할 수 있는 프로그래밍 교육과정을 개발하기 위해 'LED 소자를 이용한 프로그래밍 교육 방안'을 설계하였다. 본 연구를 통하여서 초등학교 학생들이 쉽고 재미있게 프로그래밍에 접근하고, 고차원적인 문제 해결력을 기르는 컴퓨터 교육과정의 한 모델을 제시하였다.