• 정보학연구
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• 제9권1호
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• pp.65-79
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• 2006

e-Marketplace is a business concept which is importantly considered in the area of marketing. e-Marketplace provides the public field in which multi-purchasers can efficiently trade with multi-suppliers. Supply Chain Management(SCM) is being widely acknowledged by the development of information technology. SCM is well known as one of the key issues lately. The complexity of supply chains and the associated potential opportunities for gaining a competitive edge by designing a product and process to support supply chain management can be significant. In order to achieve successful implementation of supply chain management system, companies should understand some barriers in implementation and set up effective and integrated information system. Standardization of logistics is needed through the unification of EDI, Bar Code, Pallet and so on. It's effect is magnified on Efficient Consumer Response such as efficient store assortment, efficient replenishment, efficient promotion and efficient product introduction. International logistics management is the integration of key business processes from original suppliers to end user that provides products, services and information that add value for customers. e-Logistics is being used in managing the international logistics. In this study, three basic e-SCM models for the strategic implementation of supply chain management are suggested. Among them, the virtual company can be the best one we can develop in order to cope with the individualized customer needs.

• 한국컴퓨터정보학회논문지
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• 제24권8호
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• pp.59-66
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• 2019

As the monetary value of cryptocurrency increases, the security measures for cryptocurrency becomes more important. A limitation of the existing cryptocurrency exchanges is their vulnerability to threats of hacking due to their centralized manner of management. In order to overcome such limitation, blockchain technology is increasingly adopted. The blockchain technology enables decentralization and Peer-to-Peer(P2P) transactions, in which blocks of information are linked in chain topology, and each node participating in the blockchain shares a distributed ledger. In this paper, we propose and implement a mobile electronic wallet that can safely store, send and receive cryptocurrencies. The proposed mobile cryptocurrency wallet connects to the network only when the wallet actively is used. Wallet owner manages his or her private key offline, which is advantageous in terms of security. JavaScript based wallet apps were implemented to respectively run on Android and iOS mobile phones. I demonstrate the process of transferring Ethereum cryptocurrency from an account to another account through Ropsten, a test net for Ethereum. Hardware wallets, such as Ledger Nano S, provide a slightly higher level of security, yet have the disadvantages of added burden of carrying additional physical devices and high costs (about 80$).

• 한국CDE학회논문집
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• 제14권1호
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• pp.33-41
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• 2009

Triangular mesh models are widely used in reverse engineering, computer graphics, rapid prototyping and NC(numerical controller) tool-path generation. Triangular mesh models are generated from point clouds, surface models and solid models. A halfedge-based triangular mesh data structure is proposed and the development considerations are presented. In the presented data structure, halfedge is the key data structure. Halfedge stores its triangle index and the order in the triangle. Triangles do not store the halfedge lists explicitly. Halfedge is referred by value and defined when it is required. Proposed data structure supports four design requirements: efficient rendering, compact memory, supporting efficient algorithms and easy programming.

• Journal of Information Processing Systems
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• 제18권6호
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• pp.741-754
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• 2022

Openstack is widely used as a representative open-source infrastructure of the service (IaaS) platform. The Openstack Identity Service is a centralized approach component based on the token including the Memcached for cache, which is the in-memory key-value store. Token validation requests are concentrated on the centralized server as the number of differently encrypted tokens increases. This paper proposes the practical Byzantine fault tolerance (PBFT) blockchain-based Openstack Identity Service, which can improve the performance efficiency and reduce security vulnerabilities through a PBFT blockchain framework-based decentralized approach. The experiment conducted by using the Apache JMeter demonstrated that latency was improved by more than 33.99% and 72.57% in the PBFT blockchain-based Openstack Identity Service, compared to the Openstack Identity Service, for 500 and 1,000 differently encrypted tokens, respectively.

• 마케팅과학연구
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• 제20권1호
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• pp.35-48
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• 2010

今天, 受到成熟零售市场挑战的时装市场需要新的 "品牌发展" 典范来提高他们的竞争优势. 时装市场的一个重要议题是为满足消费者由于生活方式的变化而产生的特别需求所进行的生活方式品牌扩张. 时装品牌扩张到生活方式产品类别, Y世代和婴儿潮可以说是新兴的 "前景"(婴儿潮的消费者正在改变他们的生活方式. Y世代正经历着他们生命阶段的变化). 他们有购买新产品的需求. 因此, 服装公司为品牌扩张注重消费群从而在新的产品类别中建立和管理他们的品牌资产是乐观的. 本文的研究目的是(a)评估母品牌和子品牌的品牌资产. (b)鉴定消费者对品牌扩张的感知营销因素. (c)评估两个选择的群体(Y世代和婴儿潮)的营销因素和扩张到生活方式的产品类别(包括家居时尚产品)品牌的品牌资产之间因果关系的结构方程模型. 关于理论框架, 本文关注传统的营销4P组合来鉴定哪个营销因素在品牌扩张资产方面更重要. 比较营销可以建立 "品牌扩张资产", 从而成功的进入新类别. 借鉴相关的文献, 通过关注选择的消费者(Y世代, 婴儿潮), 本研究发展的研究假设结合了品牌资产因子和营销因素. 在品牌扩张至生活方式产品的背景下, 品牌资产的构念包括品牌认知/联合, 品牌感知(例如感知质量, 情感价值)和从CBBE因子(Keller, 2001)中而来的品牌共鸣. 据推测, 通过品牌扩张至生活方式产品, 市场营销要素在品牌认知/联合, 品牌感知方面创建品牌扩张资产, 进而影响品牌的共鸣. 为了收集数据, 样本由韩国Y世代的女性消费者和在婴儿潮中出生的消费者. 这些在婴儿潮中出生的消费者由于生活周期的改变而对生活方式产品有较高的需求. 在韩国Y世代(n=326)和婴儿潮(n=325)的女性消费者中共有651份有用的问卷被使用. 我们用LISREL8.8测试了使用相关矩阵的结构和测量模型. 结果显示品牌扩张的感知营销因素包括三个因子: 价格/店铺形象, 产品和广告. 在Y世代的模型中, 价格/店铺形象对品牌资产因素有积极的影响(例如品牌认知/联合, 感知质量). 同时, 在品牌扩张中产品对情感价值有积极的影响. 品牌认知/联合有可能提高感知质量和情感价值, 从而对扩张至生活方式产积极的品牌产生品牌共鸣. 在婴儿潮消费者模型中, 价格/店铺形象对感知质量有积极的影响, 感知质量可以创造品牌扩张的品牌共鸣. 产品对质量感知和情感价值有正的影响, 这些都会消费者产生对扩张至生活方式产品的品牌的品牌共鸣. 但是, 在这两个群体中广告和品牌资产都是负相关. 本研究为时装营销者提供了发展成功的品牌扩张战略以及可持续的竞争优势的见解. 本研究补充和扩展了先前的有关通过营销努力的因素促使品牌扩张成功的研究. 研究结果支持为进入新的产品类别, 时装品牌扩张(Aaker and Keller, 1990; Tauber, 1998; Shine et al., 2007; Pitta and Katsanis, 1995)和营销行动的增效作用. 因此, 我们推荐营销者同时针对Y世代和婴儿潮一代通过标准化的营销推广进入新产品类别(例如家具)可以降低营销成本. 时装营销者可以(a)提供高价的产品线. (b)在韩国通过零售渠道(例如专门百货商店)强调高档特征的商店形象定位. (c)结合服装与生活方式产品包括新颖的款式和设计师的限量版. 对品牌资产,成功品牌延伸的关键是消费者的品牌认知度和品牌联合,确保新产品类别的品牌特征. 对于营销者来说, 在进入新产品类别的时候知道什么有助于更具体的联合是必要的. 对时装品牌而言, 品牌扩张的第二个关键是进入 "奢侈" 生活方式新产品类别的途径. 更高的价格或店铺形象都对质量感知有影响. 而质量感知可以引起品牌共鸣. 更重要的是, 本研究提高了对品牌扩张的理论理解并对营销者提出了在制定针对Y世代和婴儿潮一代消费者的行销项目时的方向.

• 한국융합학회논문지
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• 제12권11호
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• pp.91-97
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• 2021

본 논문은 불완전한 데이터를 처리하기 위해 본래 규칙개선 문제를 위해 고안되었던 데이터 확장 기법을 사용한다. 이 기법은 사건마다 중요도를 의미하는 가중치를 가질 수 있으며 각 변수를 확률값으로 나타낼 수 있는 특징이 있다. 본 논문에서의 핵심 문제가 손실값과 가장 근사한 확률을 구하여 손실값을 확률로 대치하는 것이므로, 3가지 다른 알고리즘으로 손실값에 대한 확률을 구한 후 이 데이터 구조의 형식으로 저장한다. 그리고 각각의 확률 구조에 대한 평가를 위해 SVM 분류 알고리즘으로 각각의 정보 영역을 분류하는 학습을 한 후, 본래의 정보와 비교하여 얼마나 서로 일치하느냐를 측정한다. 손실값의 대치 확률을 위한 3가지 알고리즘들은 같은 데이터 구조를 사용하고 있으나 접근 방법에서는 서로 다른 특징을 가지고 있어 적용 분야에 따라 다양한 용도로 이용될 수 있기를 기대한다.

• Asia Marketing Journal
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• 제10권2호
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• pp.99-123
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• 2008

국내 주요 소매업체들은 정기적인 고객만족조사의 결과를 기반으로 고객만족경영을 추구해왔다. 그러나 고객만족조사의 문제점 가운데 하나는 고객만족조사에 기반하여 추정된 고객만족지수가 고객들의 점포애고행위를 충분히 예측하지 못한다는 것이다. 그 이유로는 고객만족을 측정하는 항목들이 주로 가격이나 고객과의 접점에서 발생하는 기능적 속성(attribute)들로 구성되며, 소비자들이 중요하게 생각하는 정서적 측면의 고객가치를 제대로 반영하지 못하고 있다는 것을 들 수 있다. 본 연구는 쇼핑가치를 Zeithaml(1988)이 제안한 지각된 편익(benefit)과 지불한 비용(cost)에 기초한 소비자의 주관적인 평가로 정의내리고, 이를 모형화하여 측정한다. 기존의 소매점 고객만족조사에서 발견된 문제점을 보완하기 위해 실용적 가치를 반영하는 항목들과 쾌락적 가치를 반영하는 항목들을 지각된 편익에 반영함으로써 고객만족에 대한 설명력을 향상시키고자 했다. 투입되는 비용에 있어서도 금전적 비용 외에 쇼핑과정에서 발생하는 다양한 인지적/시간적 노력을 포함하는 비금전적 비용을 모형에 반영한다. 쇼핑가치에 대한 개념적 틀을 기반으로 쇼핑가치가 고객만족, 그리고 구매빈도나 구매금액과 같은 실제구매행동에 어떤 영향을 미치는 지를 실증적으로 검토하기 위해 서울 강남권 여성고객들의 백화점 이용실태에 대해 서베이조사를 실시하고, 이 자료에 근거해 쇼핑가치와 소비자의 구매행동간의 관계를 실증분석하였다. 분석결과 고객들이 해당 백화점에 대한 쇼핑가치를 높게 평가할수록 만족도도 높아지는 것으로 나타났다. 또 고객만족도는 구매빈도와 구매금액으로 측정된 구매행동에 유의한 영향을 미치는 것으로 나타났다. 5개의 가치차원 중 쾌락적 편익, 서비스, 그리고 비금전적 비용이 유의하게 고객만족에 영향을 미치는 것으로 나타났다. 반면 금전적 비용은 고객만족에 유의한 영향을 미치지 않는 것으로 나타났다.

• Asia Marketing Journal
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• 제15권1호
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• pp.169-188
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• 2013

Established in 2006 as the forward integration effort by Taesung Industry, the major cosmetic packaging company, TONYMOLY has phenomenally grown to one of the major cosmetic brand companies in the submarket called, 'one brand-shop' of cosmetic market since 2008, after overcoming the crisis of 'going out of business' in a couple of early years. Within a relatively short period of time, TONYMOLY's performances have dramatically improved in terms of metrics such as growth in sales revenue, the number of stores, the average sales per store, transaction value per customer, the number of monthly transactions, the number of membership-based customers, and overseas sales. In this case study, we have examined TONYMOLY's recent marketing activities which may explain the plausible reasons behind the substantial growth of a small but smart cosmetic company. Above all, the first key success factor of TONYMOLY would be found in its adherence to the clear philosophy of the customer value proposition and/or the differentiated position of TONYMOLY as a brand of providing value. Second, this brand concept of value was first penetrated and welcomed among the foothold customer target group of mid and late teens with appropriate products, while the target groups were later expanded into the age group of twenties along with expansion of relevant products. Third, its differentiation efforts have been concrete and meaningful by utilizing unique ingredients in its product development and marketing efforts, unique fun packaging, and continuously introducing new hit-selling products as well as managing steady-selling products. Fourth, TONYMOLY has been smart enough to use its limited marketing money efficiently and effectively in its marketing communication activities. Viral marketing, PPL, and concentrated media planning and execution turned out to produce effective and efficient market-based performances such as awareness, word-of-mouth, and sales. Lastly, the marketing leadership of CEO and top management, emphasizing communications and interactions, was confirmed in the relationship quality with and trust level of its franchisees and internal employees. These key success factors may explain the recent phenomenal market performances of TONYMOLY. Despite recent successes, the major issues are presented for TONYMOLY to consider for maintaining its sustainable advantages and growth. The first issue concerns TONYMOLY's choice of growth philosophy between product/brand-centric marketing and customer-centric marketing. The second challenging issue relates to how TONYMOLY can cope with 'growing pains' plausibly accompanied with the rapid growth.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제15권8호
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• pp.2923-2943
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• 2021

The double helix structure of DNA makes it diverse, stable and can store information with high density, and these characteristics are consistent with the requirements of molecular communication for transport carriers. In this paper, a specific structure of molecular communication system based on DNA length coding is proposed. Transmitter (Tx) adopts the multi-layer golden foil design to control the release of DNA molecules of different lengths accurately, and receiver (Rx) adopts an effective and sensitive design of nanopore, and the biological information can be converted to the electric signal at Rx. The effect of some key factors, e.g., the length of time slot, transmission distance, the number of releasing molecules, the priori probability, on channel capacity is demonstrated exhaustively. Moreover, we also compare the transmission capacity of DNA-based molecular communication (DNA-MC) system and concentration-based molecular communication (MC) system under the same parameter setting, and the peak value of capacity of DNA-MC system can achieve 0.08 bps, while the capacity of MC system remains 0.025 bps. The simulation results show that DNA-MC system has obvious advantages over MC system in saving molecular resources and improving transmission stability.

• 유통과학연구
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• 제20권2호
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• pp.91-100
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• 2022

Purpose: The sports industry is a major form of leisure and entertainment, but the industry was tremendously affected by the Covid-19 pandemic. This study gives solutions for sports leisure retail stores to the effects of the Covid-19 crisis on consumers' sports products purchasing habits and then gives a logical conclusion regarding the findings of the topic. Research design, data and methodology: Scant research is available to feedback for owners and managers of sports leisure retail stores which elements could be considered to recover their business prior to the pandemic. For achieving this, this study investigated total 284 responses in the retail stores and conducted the ANOVA analysis to compare the level of intensity on the impact Covid 19 pandemic. Results: Our findings suggests that there was a statistically recognizable difference at the significance level of probability between the mean value of the impact index of Covid 19 pandemic and key recovery strategies, indicating the high degree of Covid 19 impact can be reducing by four solutions. Conclusions: Finally, this study concludes the specific entertainment elements that influence the purchasing behavior of consumers will ensure that the Sports industry deals with its internal problems first without necessarily looking at the outside factors such as the pandemic.