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김유경(YuKyoung Kim),조대곤(Daegon Cho) 한국IT서비스학회 2023 한국IT서비스학회지 Vol.22 No.2
This study analyzed the CEO New Year’s addresses of major Korean companies, extracting key topics for employees via text mining techniques. An intended contribution of this study is to assist reporters, analysts, and researchers in gaining a better understanding of the New Year’s addresses by elucidating the implicit and implicative features of messages within. To this end, this study collected and analyzed 545 New Year’s addresses published between 2012 and 2021 by the top 66 Korean companies in terms of market capitalization. Research methodologies applied include text clustering, word embedding of keywords, frequency analysis, and topic modeling. Our main findings suggest that the messages in the New Year’s addresses were categorized into nine topics—organizational culture, global advancement, substantial management, business reorganization, capacity building, market leadership, management innovation, sustainable management, and technology development. Next, this study further analyzed the managerial significance of each topic and discussed their characteristics from the perspectives of time, industry, and corporate groups. Companies were typically found to emphasize sound management, market leadership, and business reorganization during economic downturns while stressing capacity building and organizational culture during market transition periods. Also, companies belonging to corporate groups tended to emphasize founding philosophy and corporate culture.
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장현숙 ( Hyunsook Jang ),전아름 ( Areum Jeon ),유현이 ( Jessica Hyunny Yoo ),김유경 ( Yukyoung Kim ) 대구대학교 한국특수교육문제연구소 2014 특수교육저널 : 이론과 실천 Vol.15 No.4
Dichotic digit test is a high validity clinical test for providing information on the hemispheric and interhemispheric lesions and is widely used for screening and diagnosing central auditory processing disorders (CAPD). The purpose of this study was to develop Korean dichotic digit test and provide normative values for children and adults. Prior to the development of the test, errors were analyzed in 90 pairs of 1-digit and 180 pairs of 2-digit to rule out phonemic similarities of Korean numbers 1 through 10 in the manner of dichotic listening by testing 20 young adults with normal hearing. The final test developed in this study was composed of 1-3 digit lists with 20 items for each list, excluding the number 2 in which showed the most number of errors. To prepare for the age norms, the developed dichotic digit test was performed on 272 subjects from the age of 7-12 years old and 95 college students in 20s. 1 and 2 digit tests were applied to all age groups while 3 digit test examined only for the adult group. The results for 7 to 20 years showed that the performance significantly increased as age increased, and decreased as the number of digits increased. The response showed as 95.3-99.5% in right ear, 89.2-98.7% in left ear for 1 digit test and 66.9-92.3% in right ear, and 59.8-89.9% in left ear for 2 digit test. There were significant REAs for the age of 8-9 years in the 2 digit pair conditions and performance approached the adult level for the age of 12 years. The dichotic digit test showed significantly high test-retest reliability and validity, which in validity showed significant correlation with speech recognition test. The normative values of Korean dichotic digit test with 1-3 digits were presented and the results indicate that 2 digit test is the most appropriate for CAPD diagnosis.
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