• The Journal of the Korea Contents Association
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• v.12 no.10
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• pp.453-465
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• 2012

The major purpose of this study is to examine the effects of customers' perceptions toward service quality of mobile music service on customer loyalty and switching intention. For this purpose, this study posited three service quality characteristics including interface, service, price quality as key determinants of customer loyalty and switching intention based on relevant literature reviews. A research model and hypotheses concerning the relationship between these variables were constructed. Moreover, this study explored the moderating effects of attractiveness of alternative and switching costs on the relationship between customer loyalty and switching intention. An online survey was administrated on 433 mobile music service users and a simple, multiple, and hierarchical regression analysis were employed. The results indicated that all of interface, service, price quality have significant positive influences on customer loyalty, and both of service quality and attractiveness of alternatives have influences on the switching intention in a positive way. On the other way, it was shown that switching costs have a negative influence on the switching intention. The moderating effect of attractiveness of alternatives on the relationship between customer loyalty and switching intention was also found. The implications of these results are discussed.

• The Journal of the Korea Contents Association
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• v.12 no.4
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• pp.390-400
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• 2012

The satisfaction of customers, who are in a servicescape, will be subject to many environmental stimulations. In particularly, the servicescapes of the store and the customer characteristics are important factors that affecting the emotional commitment of consumers. In this study, the servicescape that consumers evaluated can be divided into physical and social factors. Furthermore, how these factors can affect the emotional commitment through perceived service quality and social interaction will be studied as well. In addition, the moderating effects of the individual characteristics at the perception of servicescape, such as optimum stimulation level and social appropriateness will be studied together. The results show that the physical factor of servicescape is one of the most important elements that affect "emotional commitment" and under this process; the perceived service quality is performed as a parameter. Besides, the social factor of servicescape, such as the other customer and companion affect can also affect emotional commitment through social interaction. On the other hand, through the analysis of optimum stimulation level and social appropriateness, we found that the higher the social appropriateness, the greater the effect of servicescape. Overall, in order to enhance the customer's emotional commitment, we must build high quality servicescape, meanwhile; the management of other customers and the companion are needed at the same time.

• Journal of KIISE
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• v.44 no.4
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• pp.423-432
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• 2017

Recently, the video quality control schemes for the improvement of the QoE (Quality of Experience) of video streaming services that are based on DASH (Dynamic Adaptive Streaming over HTTP), which is a standard of HTTP adaptive streaming (HAS) services, have been studied. However, the problem of the existing schemes is the degradation that is due to unnecessary quality changes because the VBR (Variable Bitrate) characteristics of the video are not considered. In this paper, we propose a SC-DASH (Segment Characteristics-based DASH) which controls the video quality based on the segment characteristics. The SC-DASH can prevent the occurrence of the unnecessary quality changes by controlling the video quality based on the size of the next segment, the segment throughput, and the buffer occupancy. The experiment results showed that the SC-DASH improves the QoE by reducing the unnecessary quality changes compared with the existing quality control schemes.

• Information Systems Review
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• v.24 no.3
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• pp.69-91
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• 2022

The video recommendation services help to save the user's information search time in the overflowing online information, and algorithms for more efficient and accurate recommendation are continuously developed. In particular, TikTok has the largest number of users in the short video industry due to its unique recommendation algorithms. In this study, by applying a privacy calculation model, the research tried to compare users' responses to each type of TikTok's recommendation service. Users are well aware of the privacy concerns and benefits of TikTok's recommendation service. Although there is a risk, it was found that users continue to use TikTok's recommendation service because the benefits are greater.

• Journal of Service Research and Studies
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• v.6 no.4
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• pp.87-100
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• 2016

The purpose of this study is to clarity the effect of job autonomy, innovative work behaviors and perceived organizational support on organizational performance. To attain this goal, mediation analysis, moderation analysis and moderated mediation analysis were performed. 198 valid questionnaires from China Tianjin City's logistics enterprises were analyzed with SPSS Macro program. The results indicated that: (1) perceived organizational support's moderating effect existed in the relationship between job autonomy and innovative work behaviors, (2) innovative behaviors' mediated effect existed in the relationship between job autonomy and organizational performance, (3) perceived organizational support's moderated mediation effect is existing in the relationship between job autonomy, innovative behaviors and organizational performance. That is to say, the strength of the mediated effect decreased along with levels of perceived organizational support: stronger job autonomy relationship when perceived organizational support was weak.

• Proceedings of the Korean Society of Computer Information Conference
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• 2019.07a
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• pp.167-170
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• 2019

본 논문에서는 호텔 기업의 고용관계 특성이 조식시민행동과 이직의도에 어떤 여향을 미치고 있는지를 알아보고 그 과정에서 셀프리더십의 조절로 얼마나 변화가 있는지를 알아보는 연구이다. 기존연구에서 서비스 품질에 영향을 미치는 변인으로 조직시민행동을 그리고 장기근속을 대변하는 변인으로 이직의도를 다루는 연구들은 상당하게 이루어져 있다. 이에 본 연구자는 서비스의 품질에 직접적인 영향을 미치며 장기근속을 증가시켜줄 수 있는 방법으로 중요한 변인으로 셀프리더십의 조절을 보려고 한다.

• 한국정보통신설비학회:학술대회논문집
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• 2002.08a
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• pp.179-183
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• 2002

본 논문에서는 광대역 CDMA망에서 음성, 비디오, 데이터와 같은 멀티미디어 서비스를 제공하기 위해서 다양한 서비스 특성에 적합한 액세스 제어 방법을 제안한다. 즉 서비스별로 다른 Eb/No 값을 이용함으로써 서비스의 BER을 조절하고 음성과 비디오의 전송률이 시간에 따라 변하는 특성을 이용하여 데이터의 전송률을 제어하는 방법을 제안하였다. 또한 각 방법에 대한 시뮬레이션과 분석을 수행하였다. 성능 분석결과 제안된 액세스 방법을 사용할 경우 데이터에 대한 지연을 통해 전체적인 outage 발생확률을 감소시킴을 알 수 있었다.

• Proceedings of the Korean Information Science Society Conference
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• 2003.04d
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• pp.295-297
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• 2003

본 논문에서 홈네트워크에서 차등서비스를 이용하여 홈서버가 DiffServ 경계 라우터와 칼이 트래픽 분류와 조절 기능과 원격제어 PC의 제어하에 가정의 단말들을 제어하여 차등서비스를 제공할 수 있도록 하였다. 실시간 멀티미디어 응용들에게 차등서비스를 제공하는 홈서버 기능을 제안하고 이러한 모델을 구현하기 위한 홈서버에 내장해야 할 차등서비스 방법의 모델을 설계 및 구현하였다.

• Journal of Service Research and Studies
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• v.12 no.4
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• pp.19-29
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• 2022

This study is a descriptive survey using a self-reported survey method to understand the effect of language and non-verbal communication of medical service providers on customer satisfaction through Lapport and to determine the degree of impact on Lapport by adjusting perceived service authenticity. The data collection period was from April 5 to April 30, 2021. Using the convenience sampling method, data were collected from users of medical institutions located in Busan and Gyeongsangnam-do, and a total of 306 valid questionnaires were used as statistical analysis data. The collected data were analyzed using the IBM SPSS statistics version 25.0 and AMOS 20.0 programs through a coding process. In the results of this study, it was found that the language and non-verbal communication of medical service providers influenced customer satisfaction through Lapport, and the perceived service authenticity in the relationship between each variable acts as a moderating effect. Considering that the language and non-verbal factors of the medical service provider are important in the interaction between the medical service provider and the hospital user, the medical service provider should take full account of the language and non-verbal factors and help the medical institution communicate with the hospital user.

• The Journal of the Korea Contents Association
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• v.14 no.11
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• pp.389-397
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• 2014

Studies on switching intention have been one of the most interesting topics. In this paper we investigate empirically the factors influencing the mobile communication service switching intention. Our research model includes the relationship between 'switching intention' and 'habit', 'alternative attractiveness', 'present service satisfaction'. In addition, we try to find the effects that 'habit' and 'alternative attractiveness' give to 'switching intention' through 'present service satisfaction'. Finally, the moderating effects of 'handset subsidy' are examined. We analyze the model by Multiple Group Structural Equation Model. This proves that 'habit', 'present service satisfaction', and 'alternative attractiveness' give direct effects to 'switching intention'. And 'habit' and 'alternative attractiveness' give the indirect effects to 'switching intention' through 'present service satisfaction'. In addition, 'handset subsidy' has the moderating effects between 'switching intention' and 'habit'.