소셜 네트워크 게임에서 소셜 정보를 연동하기 위한 메타 API 및 소셜 허브 시스템 개발

정경진 전북대학교 일반대학원 2014 국내석사

오늘날 현대인들은 SNS(Social Network Service)의 확산으로 언제 어디서나 지인들과 소통할 수 있게 되었다. 소셜 커머스, 크라우드 펀딩 등과 같은 다양한 서비스들이 SNS와 결합되어 빠른 성장을 이루고 있다. 이들 서비스와 함께 대표적으로 급성장 하고 있는 서비스가 바로 SNG(Social Network Game)이다. SNG는 기존에 게임에 관심이 없던 여성 유저나 라이트 유저들이 지인들과의 협동, 경쟁에 재미를 느끼고 자연스럽게 게임에 몰입할 수 있도록 할 수 있는 특징을 갖는다. 여기에 SNS를 통한 바이럴 마케팅 또한 훌륭한 광고 수단이 되기 때문에 이러한 현상이 가속화되고 있다. 실제 해외 SNG 업체인 King사는 캔디크러쉬사가 라는 SNG를 통해 2013년 한 해 약 2조원에 이르는 연 매출을 달성하기도 하였다. 하지만 SNS를 개발하기 위한 상황은 오히려 많은 제한점을 갖고 있다. SNS 플랫폼의 종류는 다양하지만 실제 SNG 개발은 특정 SNS에 국한되어 서비스되고 있는 것이 대부분이다. 가장 큰 이유는 SNS 플랫폼들 각각 오픈 API를 제공하는데 표준규격이 없어 제각각이라는 것이다. 또한 국내의 대표 SNS인 카카오톡 플랫폼의 경우 현재까지 API의 공개 범위를 계약된 업체들에게만 제공하고 있고 소수의 기능에 대해서만 베타테스트 형식으로 일반인에게 오픈하고 있다. 따라서 스타트 기업 및 SNG를 개발하려는 1인 개발자들에게는 해당 플랫폼을 적용하기가 쉽지 않다. 이에 본 논문은 다양한 SNS 플랫폼들에서 제공하는 API들을 공통으로 사용할 수 있도록 해주는 메타 API를 구현한다. 또 이를 통해 획득한 다양한 소셜 정보들을 가공하여 SNG에 필요한 필수 기능들을 제공할 수 있는 소셜 허브 시스템 구축 방법에 대해 소개한다. 이를 통해 개발자의 경우 수많은 오픈 API들을 각각 적용하고 통합 하는 수고를 하지 않고 SNG를 개발할 수 있다. 소셜 허브 시스템을 사용해 개발된 SNG를 사용하는 유저들은 더욱더 다양한 사람들과 다양한 경험을 할 수 있게 된다. 본 논문에서는 해당 시스템을 구현하는데 초점을 두고 있으며 시스템 구성에서 최적화를 위한 기법들에 대해 소개한다. 마지막으로 실험 및 평가를 통해 시스템 내에서 제안한 친구 관리 기법이 일반적인 친구 관리 방법에 비해 뛰어난 검색 성능을 나타냄을 보였다. 또한 해당 시스템과 기존 SNG에서 인맥정보를 로딩하기 위한 시간을 측정하였고 기존 SNG 게임과 비교하여 속도 차이가 없음을 보여주어 실제 게임 구현을 하기에 충분한 시스템임을 입증하였다. Through expansion of SNS, today’s people can communicate with friends anytime, anywhere. Various types of services like social commerce, crowd funding are growing faster in combination with SNS. SNG (Social Network Game) is the service which is growing faster together with these kinds of services. SNG has a feature that attracts women consumers and light users who were not interested in game, making them naturally absorbed in game and interested in cooperation and competition with friends. And this type of phenomenon is being accelerated because viral marketing using SNS can be a great marketing strategy. A foreign SNG enterprise, King had an annual sale about 2 trillion in 2013 through SNG called Candy crush. Despite of these positive effects, developing real SNG has many difficulties. Because most of trials to develop SNG focus on just few specific SNS though there are various types of SNS platforms. One of the biggest reasons is SNS platform companies provide open API to connect platforms in their own way because there is no standard. Furthermore, in case of Kakaotalk, a representative domestic SNS platform provides API only to contractors, and just few functions to public in beta test. So, it’s not easy to apply adequate platforms for new businesses and small-medium sized companies that are trying to develop SNG. This paper will introduce Meta API that makes it possible to use many different API provided by a number of SNS platforms. And, processing various social information gained through the above, this paper will introduce social hub system that is able to provide essentially needed functions to SNG. This helps developers not to apply many open API separately and combine them to develop SNG. In addition, the users who use SNG developed through social hub system can experience more diverse things with various people. This paper focuses on realizing the above system and introduces technique optimized for system configuration. Lastly, through experiment and evaluation, this paper compares friends management technique suggested in the above system to general friends management technique, and the result of that comparison is the suggested technique is superior to the general technique in search function. Moreover, measuring the time to load a list of friends from both the above system and the existing SNG, this paper demonstrates the above system is enough to realize a game because the speed in the both systems is same.

Network Structure Analysis of a Sub-hub-Oriented Port : Focuing on Gwangyang Port

Song ShiCheng Incheon National University, Graduate School of Lo 2019 국내석사

The Port of Gwangyang was built with the aim of reducing congestion at the Port of Busan by acting as sub-hub port. Many studies have discussed the new port construction and dual-hub port system to solve the increasing demand and port congestion problems; however, there is not much research discussing the sub-hub port system. As such, the main purpose of this paper is to analyze the liner shipping network structure of the sub-hub-oriented Port of Gwangyang using social network analysis (SNA). In terms of number of connections among ports, using in-degree, out-degree, and betweenness centrality, Busan is the most important port in Gwangyang’s network. However, when it comes to considering the influence of ports using hub centrality, Busan drops to the fifth most influential position. In the network of the Port of Gwangyang, Shanghai and Hong Kong have more important roles compared to those of the Port of Busan. In terms of the number of connections among the ports, using in-degree and out-degree centrality, the Port of Busan was identified as the most important port in Gwangyang’s network; however, when it comes to considering the influence of ports using hub centrality, Busan plunges to the fifth most influential position. Shanghai’s hub role was constructed on its broader connections with other hub ports. Also as the largest container port in the world, Shanghai port is not only the center of Northeast Asia, but also a significant port connecting with Southeast Asia. Many of Gwangyang port’s distributing was realized through Shanghai port. Especially those cargos aimed to be distributed to mainland China. Besides, Shanghai port’s closer relationships with mainland China ports earned extra credits. Because Gwangyang port’s main distribution regions are China, Japan and Southeast Asia, these ports which had more connections with these areas would be lifted up in hub authority rank. Hong Kong port is a hub port which connecting both mainland China ports like Shenzhen and Guangzhou and Southeast Asia ports like Ho Chi Minh and Singapore. The transshipment role of Hong Kong and its value added services has made it a powerful and influential port. Ningbo port is located near Shanghai port. It faced high competition from Shanghai port. But still, Ningbo port has become a very important port in Asia as well as in China. A few important ports concentrated a large number of links which they all shared high degree centrality, hub centrality and authority centrality while most ports were only connected to rather than reaching out. These important ports mainly including Busan, Shanghai, Hong Kong, Kaohsiung, Singapore, Ho Chi Minh and Port Klang. Also these hub ports were having a dominating role in its regional areas. For examples, Busan port dominated the Korea-Japan areas, and Jebel Ali dominated the Middle East areas.

온라인 커뮤니티에서 허브가 신제품 확산에 미치는 영향 : 집단 내 선호의 편향성에 의한 조절 효과를 중심으로

박주영 연세대학교 대학원 2023 국내석사

온라인 커뮤니티(online community)는 공통의 관심사와 특징을 가진 사람들이 모여 서로 정보와 의견, 경험을 공유하는 가상의 네트워크로, 소비자의 의사 결정 과정에 중요한 역할을 하며 기업의 마케팅 활동에서도 그 중요성이 갈수록 커지고 있다. 이에 따라 온라인 커뮤니티 내에서 구성원들 간의 모방 소비를 통한 신제품 확산에 대한 연구가 주목받고 있다. 본 연구는 온라인 커뮤니티에서 허브의 사회적 영향력이 집단 내 선호의 편향성에 따라 달라질 수 있음에 주목한다. 이를 확인하기 위해 음원 소셜 네트워크 웹사이트인 Last.fm에서 커뮤니티 정보와 사용자의 음원 구매 데이터를 수집하여 고정효과 선형회귀모형을 사용해 분석을 진행하였고, 다음과 같은 결과를 도출하였다. 먼저, 음악에 대한 선호가 편향적인 커뮤니티에 비해 선호가 다양한 장르에 퍼져 있는 커뮤니티에서 신규 음원 구매에 대한 사회적 전염이 더 크게 작용하였다. 또한, 허브들은 다른 사람들에 비해 다른 소비자의 신제품 구매에 더 큰 영향력을 가졌다. 특히, 허브가 다른 소비자의 구매 행동에 미치는 긍정적인 영향력은 선호가 편향된 집단에서는 증가하는 반면 선호가 다양하게 퍼진 집단에서는 감소하였다. 이와 같은 결과를 바탕으로, 본 연구는 네트워크 허브가 신제품 확산에 미치는 영향에 대해 집단 내 선호의 편향성이라는 새로운 경계 조건을 제시하였다는 이론적 의의를 가지며, 더 나아가 신제품 마케터와 커뮤니티 관계자들에게 효율적인 마케팅 전략을 제공함으로써 실무적인 측면에 기여하고자 한다. An online community is a virtual network where people with common interests and characteristics gather to share information, opinions, and experiences. It plays an important role in the decision-making process of consumers, and its importance has been increasing in firm’s marketing activities. Accordingly, research on the new product diffusion through bandwagon consumption among members within the online community has been drawing attention. This study pays attention to the fact that the social influence of hubs in online communities can vary depending on the preference skewness within the group. We collected community information and users’ purchase data from Last.fm, a world-leading music social network website, and analyzed using a fixed-effect linear regression model. This study derived the following results. First, social contagion on new music purchases was greater in communities with variously distributed preferences than in communities with skewed preferences. Also, hubs had a greater influence than others on the purchase of new products by other consumers. In particular, the positive influence of hubs on the purchase behavior of other consumers increased in the group with skewed preferences, while decreased in the group with diverse preferences. Based on these results, this study has the theoretical implications of presenting a new boundary condition, in-group preference skewness, for the impact of network hubs on new product diffusion. Furthermore, this study offers managerial implications to new product marketers and community managers by providing efficient marketing strategies.

A SOCIAL NETWORK ANALYSIS OF INTERCONNECTIONS AMONG CRUISE PORTS IN THE CARIBBEAN REGION

Uriel Armando Lopez Rodriguez Incheon National University Graduate School of Log 2020 국내석사

Despite the clear dominance of the Caribbean as the leading cruise destination in the world, leading the global cruise market with a solid thirty-two percent which double, research that focuses on the network of cruise ports in the region is quite rare, not to say non-existence. Several researchers have focused on different fields encompassed to the industry such as; economic balance, social impact, cruise marketing, and port of call current status. To fill this void, the current study carried out social network analysis to inquire into cruise port interconnections and their influence on the operation of the entire Caribbean port network. Resultant models aim to be comprehended on a graphical basis for a better understanding and consistent interpretation. Aiming to demarcate connections and ports with significant importance in the global context of the Caribbean region. The results are summarized as follows: First, in terms of connections among ports linked to the Caribbean region, a European port, Southampton harbor, exhibits the most significant in-degree and out-degree centrality. For in-degree centrality, Civitavecchia, Fort Lauderdale, Copenhagen, and Miami complement the index. Philipsburg, Copenhagen, Barcelona, and Civitavecchia quota the top five for the out-degree centrality index. Nevertheless, ports within the Caribbean region are still significantly represented, containing five of the top ten ports as regards both indexes. Second, in the matter of port influence, Caribbean ports are considered the most important with respect to hub and authority centrality, especially those located in Florida and the eastern Caribbean. For hub index, Fort Lauderdale leads the ranking followed by Basseterre, Philipsburg, St. Johns, and Miami. Hence, Philipsburg, Fort Lauderdale, Basseterre, Miami, and St. Johns complement authority index on that respective order. This research contributes to the industry through its presentation of an extended panorama of the cruise network in the region, subjecting several ports to respective analyses that describe their principal characteristics and attractiveness in the industry. Complementary, this paper also come up with contributions to the academic field by providing an analysis of the interaction between Caribbean ports and other ports in different regions, focusing on their influence in the region and analyzing their most relevant features.

ANALYSIS OF THE MEDITERRANEAN CRUISE PORTS’ NETWORK USING SNA

아드리아나 Incheon National University , Graduate School of L 2020 국내석사

The Cruise industry in the Mediterranean region has increased between 2000 - 2018, being the second most important after the Caribbean. In order to see which ports are Hubs in the node network of the Mediterranean, this paper investigates the centrality of the Mediterranean port, a Hub and Authority index is proposed to classify the ports hub index and explore the centrality synthesis for the cruise shipping network in the Mediterranean region. For this purpose, this area has been explored multiple times for the economic, touristic and even environmental purposes. This paper uses the SNA Methodology, that includes Hub and Authority combined centrality (HACC) that has been used to analyze the problems of the cruise port centrality, as well as the Degree centrality, In- Degree and Out-Degree, and In Betweenness. The Empirical study suggests Barcelona, Civitavecchia, Corfu, La Valletta, Livorno, Naples, Palma de Mallorca, Piraeus, Southampton (in alphabetical order) that reproduce the essentials of Cruise Hub ports. For example, even if Barcelona has less out-degree than Civitavecchia, in terms of HACC (Hub ports index) is the first one. Southampton is one of the main homeports of the European network and connecting the Mediterranean Southern area of Europe as well as the Northern part with the Atlantic Ocean ports. Therefore, the British port connects this region with others as the Caribbean or Asian region. Even though, in terms of Authority and Hub index, other European ports have more attractiveness to the cruise industry in terms of weather or just because the passengers search for a different type of tourism. In terms of attractiveness it is found that ports located in the Western Mediterranean are more likely to be selected by the tourists as part of the route they want to experience. The implications of this paper can be divided in two types, academics and practical implications. The Academic implications that the study of the cruise ports in the Mediterranean, is the integration of the data based on real itineraries and POC (number of stops a vessel has), as well as the selection of the Hubs of the area. For the practical implications, with this study we can understand better that area is a clear requirement for the Cruise industry, as way to widen the scope for the Mediterranean and a reference for the cruise companies to choose the homeports and make the routes for the itineraries. Keywords: Cruise shipping, port centrality, social network analysis, Mediterranean cruise shipping market, spatial network patterns, Hub and authority index.