• Proceedings of the Korea Information Processing Society Conference
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• 2012.04a
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• pp.1286-1287
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• 2012

자원을 효율적으로 관리할 수 있는 분산 처리 분야의 활용도가 높아지고 있는 가운데 P2P 기술의 유용성이 분산 환경에서 입증되고 있다. 이러한 P2P 시스템에서 다양한 컨텐츠를 이용하여 정보 제공의 역할을 하는 서버와 피어들로 구성된 P2P 시스템은 일반적인 자원 보유 서버로 구성된 시스템에 비해 서버의 부하가 적은 것이 사실이다. 본 논문에서는 식당에서 음식 메뉴를 제공함에 있어서 소셜 네트워크 기반의 공동 구매에 있어 개선된 정보와 연계되어 효과적으로 진행되는 P2P 시스템을 제안한다. 소셜 네트워크 기반의 공동 구매 정보는 P2P 시스템을 이용하는 피어에 의해 제공되고, 이러한 중계 정보는 P2P 서버에 의해 제공되는 형태이다.

• The Journal of the Korea institute of electronic communication sciences
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• v.6 no.6
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• pp.915-920
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• 2011

P2P technology is the concept to share resources efficiently in distributed environments that a lot of research is underway. a lot. In these P2P systems, the server to support the contents-information have less overloads than the composed system as the server to have resources generally. In this paper, we suggest a P2P system to support conveniences to choice time for users that were connected with the information of joint-buying based on social network. Social networks based on co-purchasing information and price alerts using the P2P system is provided by the peer, this relay information is provided by the P2P server.

• The Journal of the Korea institute of electronic communication sciences
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• v.6 no.3
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• pp.445-449
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• 2011

A P2P technique is the concept to share sources efficiently in distributed environment that is studying a lot. In these P2P systems, the server to support the contents-information have less overloads than the composed system as the server to have resources generally. In this paper, we suggest a P2P system to support conveniences for users that were connected with the information of joint-buying based on social network. The joint-buying information based on social network is supported by peers using a p2p system and these information to intermediate are supported by a P2P server.

• Proceedings of the Safety Management and Science Conference
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• 2006.11a
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• pp.531-536
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• 2006

최근의 물류환경은 유통시장의 개방과 세계시장의 단일화로 국제적인 경쟁환경에 노출되어 글로벌화와 정보화 경쟁이 가속화되고 있으며 국내적으로는 대형 유통업체의 공격적인 마케팅 전개로 중소유통업체의 생존권을 위협하고 있다. 또한 물류부문의 아웃소싱화 추세가 증가하고 있으며 대형소매점 위주의 유통구조재편과 편의점들간의 규모의 경쟁 추구에 따른 지역상권 장악이 가속화되어 중소물류업체들의 경쟁력이 급속히 하락하고 있는 추세이다. 특히 대형할인점 위주의 대형 유통업체가 상당부분의 지역상권을 장악해가고 있지만 중소유통업체들은 여전히 구매력과 판매력이 미흡한 상황이며 유통 물류체계 또한 대기업 위주의 편향적인 구조로 되어 있어 상대적으로 영세하고 정보화가 취약한 중소물류업체들의 공도물류사업을 통한 가격경쟁력 강화 등의 필요성이 제기되고 있으며, 합리적인 유통 물류시스템구축이 필요한 실정이다. 그리고 전국 유통 물류시설의 기능들이 상호 연계되지 못하여 상호 중복되고 본래의 기능을 발휘하지 못하는 등 유통 물류시스템의 정보화, 체계화가 미흡한 상황에서 중소유통 물류공동화의 대안으로서 공동도매물류센터가 필요하며 이를 통해 유통 물류시설간의 전국 네트워크화를 실시하고 공동구매, 공동판매 및 조직화 등을 통해 시너지효과가 발휘될 수 있는 중소물류산업에 대한 활성화 방안의 모색이 절실히 요구되고 있다.

• The Journal of the Korea institute of electronic communication sciences
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• v.8 no.5
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• pp.739-744
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• 2013

In the past several years there has been increasing the studies using ubiquitous technology as the base technology of IT-convergence. The cooltown, one of the ubiquitous projects, is based on the web technology and the mobile environment. However, in the cooltown system, users only get a pre-made web-page. In this paper, we propose the algorithm improved usability applying the context-awareness based on the sensor network. In this paper, we can provide a custom tailored service overlooked in the existing system from this.

• Information Systems Review
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• v.24 no.4
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• pp.1-22
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• 2022

The transition to a non-face-to-face consumer society has rapidly occurred since Covid-19. The need for a subdivided urban logistics policy centered on courier delivery, a life-friendly last-mile logistics service, has been raised. This study proposes a SNS-based method that can analyze the demand relationship by region and product, respectively. We extend the market basket network (MBN) and co-purchased product network (CPN), find product category patterns, and confirm regional differences by using delivery order data. Our results imply that SNA analysis can be effectively applied to inventory distribution or product (SKU) selection strategies in urban logistics.

• The Journal of Society for e-Business Studies
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• v.25 no.4
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• pp.33-60
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• 2020

Along with the rapid advance in internet technologies, ubiquitous mobile device usage has enabled consumers to access real-time information and increased interaction with others through various social media. Consumers can now get information more easily when making purchase decisions, and these changes are affecting the brand landscape. In a digitally connected world, brand image is not communicated to the consumers one-sidedly. Rather, with consumers' growing influence, it is a result of co-creation where consumers have an active role in building brand image. This explains a reality where people no longer purchase products just because they know the brand or because it is a famous brand. However, there has been little discussion on the matter, and many practitioners still rely on the traditional measures of brand indicators. The goal of this research is to present the limitations of traditional definition and measurement of brand and brand image, and propose a more direct and adequate measure that reflects the nature of a connected world. Inspired by the proverb, "A man is known by the company he keeps," the proposed measurement offers insight to the position of brand (or brand image) through co-purchased product networks. This paper suggests a framework of network analysis that clusters brands of cosmetics by the frequency of other products purchased together. This is done by analyzing product networks of a brand extracted from actual purchase data on Amazon.com. This is a more direct approach, compared to past measures where consumers' intention or cognitive aspects are examined through survey. The practical implication is that our research attempts to close the gap between brand indicators and actual purchase behavior. From a theoretical standpoint, this paper extends the traditional conceptualization of brand image to a network perspective that reflects the nature of a digitally connected society.

• The Journal of the Korea institute of electronic communication sciences
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• v.8 no.1
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• pp.121-126
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• 2013

In the past several years there has been increasing the studies using P2P technology in the distributed system areas. In these P2P systems, the server to support the contents-information have less overloads than the composed system as the server to have resources generally. In this paper, we propose the system to support a social network P2P service based on the social network P2P system. The object of this study was to widen the use of this menu system to determine the price based on visual information by a software agent. Therefore, this system is suitable for micro, small and medium industries in the use of P2P servers and is more usable system interface for owners than previous study.

• The Journal of the Korea institute of electronic communication sciences
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• v.7 no.5
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• pp.1103-1108
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• 2012

In the past several years there has been increasing the studies using P2P technology. In these P2P systems, the server to support the contents-information have less overloads than the composed system as the server to have resources generally. In this paper, we propose the system to support a menu based on the social network P2P system. The object of this study was to widen the use of this menu system to determine the price based on visual information. This system is based on previous research, showing excellent success rate. Therefore, this system is suitable for micro, small and medium industries in the use of P2P servers. This system is more usable than previous study.

• Journal of Internet of Things and Convergence
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• v.7 no.2
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• pp.7-12
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• 2021

Wisdom Contents are created with experiences and ideas of multiple authors, and consumed in Internet based Social Network Services that are not subjected to regional restrictions. Existing copyright management systems are designed for the protection of professional authors' rights, and effective in domestic area. On the contrary, the blockchain protocol is subjected to the service and the block is added by the consensus of participating nodes. If the data is stored to the blockchain, it cannot be modified or deleted. In this paper, we propose the blockchain based undeniable multi-signature scheme for the protection of multiple authorship on Wizdom Contents. The proposed scheme is consisted of co-authors' common public key generation, multi-signature generation and verification protocols. In the undeniable signature scheme, the signature cannot be verified without help of the signer. The proposed scheme is best suited to the contents purchase protocol. All co-authors cannot deny the fairness of the automated profit distribution through the verification of multiple authorship on Wizdom Contents.