• Journal of Information Processing Systems
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• 제18권3호
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• pp.311-318
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• 2022

Tobacco sales enterprises often need to summarize and verify the daily sales bills, which may consume substantial manpower, and manual verification is prone to occasional errors. The use of artificial intelligence technology to realize the automatic identification and verification of such bills offers important practical significance. This study presents a novel multi-branch residual network for tobacco sales bills to improve the efficiency and accuracy of tobacco sales. First, geometric correction and edge alignment were performed on the input sales bill image. Second, the multi-branch residual network recognition model is established and trained using the preprocessed data. The comparative experimental results demonstrated that the correct recognition rate of the proposed method reached 98.84% on the China Tobacco Bill Image dataset, which is superior to that of most existing recognition methods.

• Journal of Information Technology Applications and Management
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• 제22권3호
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• pp.129-141
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• 2015

The purpose of this study is to provide an explanation for the association between the characteristics of a network and the type of innovation by considering the effect of absorptive capacity. To do so, this study examined the moderating effects of absorptive capacity on the characteristics of network-innovation relationship in a technical-driven venture company. In order to obtain a better understanding about consequences caused by interfirm network, information was obtained from 169 Korean IT venture companies. Results confirmed that the network diversity is positively associated with exploration. Our results also suggested that the network strength is positively associated with exploitation. Finally, we found a positive two-way interaction between absorptive capacity and the network diversity-exploration relationship. Then, we discussed implications and directions for future research.

• 대한전자공학회논문지TC
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• 제47권12호
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• pp.90-96
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• 2010

급변하는 IT 환경에서 웜 및 바이러스 동 매우 다양한 보안 위협요소들이 증가하고 있다. 특히 기업의 사내 네트워크에서는 이러한 위협을 원천적으로 차단할 수 있는 방안이 필요하다. 이러한 면에서 현재 네트워크 접근제어 (NAC: Network Access Control)는 차세대 네트워크 보안기법으로 주목받고 있다. 본 논문에서는 허가되지 않거나 웜이나 바이러스 등 악성코드에 감염된 PC나 모바일 단말 등이 사내 네트워크에 접속하는 것을 원천적으로 차단하기 위해, 네트워크 접근제어시스템을 설계하고 구현방안을 제안하고자 한다.

• International Journal of Computer Science & Network Security
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• 제21권7호
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• pp.297-304
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• 2021

In a duopoly situation, one firm can gain competitive advantage by attracting the price-sensitive customers from its competitor leading to higher profits through higher sale revenue for the competing company. A simulation study in which there are two electric car manufacturers with agent based modelling was conducted in order to verify this contention. The first step consisted of defining the baseline. Simulations of 1000 times and agent-based modelling were conducted with the assumption that company 1 reduced its price to the maximum of 20% thereby contributing to the switch-over of a maximum of 40% of the price sensitive customers of company 2. The results of 1000 simulations and agent-based modelling highlighted that price reduction by company 1 resulted in a significant increase in the number of customers, presumably due to switch-over from company 2 and there was a corresponding increase in revenues from both of the sales avenues. Thus, Company 1 achieved competitive advantage by marketing its cars to the customers of Company 2 using price reduction strategy to attract them. This study has ramifications for companies that aim to sway the price sensitive customers from a competitor.

• 산업진흥연구
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• 제5권3호
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• pp.81-88
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• 2020

본 연구는 기업의 지속가능성에 핵심요인으로 작용하고 있는 A사의 조직문화 활성화에 대한 사례연구를 통해 조직문화의 중요성을 강조하고자 한다. A사는 순수 한국형 네트워크 마케팅 기업으로서 필요한 제품을 더 좋은 품질과 더 합리적 가격으로 '고객을 넘어 고객의 성공을 실현하는 A사'라는 가치를 구현하면서 지속성장체계를 더욱 더 고도화하고 있다. 특히, A사는 창업이념, 사훈, 경영목표, 경영방침을 구현하기 위한 3대 조직문화 특성은 다음과 같다. 첫째, 원칙중심(Observing Principles)의 문화이다. 둘째, 동반성장(Glowing Together)의 문화이다. 셋째, 나눔의 문화(Sharing)구현이다. 또한, A사는 글로벌 한국형 네트워크마케팅 기업을 넘어 초일류기업으로 성장과 발전을 실현하기 위해 일에 대한 남다른 생각과 조직문화 특성인 A사 WAY를 정립하여 실천하고 있다. 한편, A사는 시대의 변화와 특성에 따른 업의 가치를 전략적으로 반영한 인적자원관리제도의 재정립과 실행의 고도화를 구현하고 있다. 즉, 조직문화 활성화를 위한 가장 중요한 요인으로 작용하고 있는 인사제도 변화란 측면에서 기존의 네트워크마케팅 기업들과 차별화된 전략적 인사제도와 함께 협력사와 회원 및 소비자들에게 지속적인 가치제공을 위한 제도 혁신을 통해 지속가능경영체계를 더욱 더 향상하고 있다.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2000년도 ITC-CSCC -2
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• pp.990-994
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• 2000

The design of LAI(Local Area Identifier), the first paging area for searching the mobile terminal has a close relation with the performance of paging channel in CDMA cellular network. This paper discusses the performance of the forward channel of IS-95 CDMA standard, known as the paging through the related messages such as call control message, channel assignment message. Modeling and simulation work were conducted to quantify the performance of paging channel in terms of traffic handling capacity and blocking levels. This result serves as illustrative guidelines for the proper engineering of common control channel, which has a major impact on the overall performance of cellular network.

• 응용통계연구
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• 제35권4호
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• pp.527-541
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• 2022

회사는 영리 등의 공동 목표를 달성하는 조직으로, 더 나은 성과를 도출해내기 위해 함께 노력하는 수많은 개인으로 구성된 사회 집단이다. 이에 따라 개인의 의사소통 능력을 비롯한 구성원 간의 네트워크 형성이 중요해지고 있다. 이러한 배경으로부터 본 연구는 직원 간 조언 관계 형성에 어떠한 요인이 영향을 미치는지 알아보고자 수행되었다. 이를 위해 미국과 유럽에 지사를 둔 컨설팅 회사 내 직원 44명의 네트워크 데이터를 ERGM(Exponential Random Graph Model) 방법으로 분석하였다. 분석 결과로 첫째, 연결을 비롯해 네트워크의 구조와 관련한 변수들이 유의하였다. 둘째, 서로 조언을 구할 확률에 성별 속성이 가장 큰 주효과로 나타났다. 셋째, 지역별 동질성은 성별 주효과보다 더 큰 연결 확률을 유도하였다. 이러한 결과로부터 직장 내 네트워크가 조금 더 효율적으로 활발하게 이루어질 수 있는 방법을 제시하였다.

• 산업공학
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• 제17권4호
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• pp.472-481
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• 2004

In this paper, we propose a linear programming model of supply planning process for the supply chain collaboration strategy of a company. The amount of its supplying quantity relies on outsourcing suppliers heavily. Conversely, the revenues of those suppliers are highly dependent on the supplying quota from the supply network planning of the company. In order to keep the supply stable through collaboration, the company builds such a policy to guarantee the fairness on revenue between the supplies. For this, the supply network plan should keep the capacity utilization ratio even for all the suppliers. But the production capacities are different and the distribution of molds is disproportional through suppliers, so the supply network plan is not easily established with simple arithmetic processes. Therefore, we developed the linear programming model with those target function and constraints minimizing the costs for holding inventory and penalty of delayed delivery, simultaneously guaranteeing the even capacity utilization through suppliers. The proposed model has been applied to real case and the evaluation for the planning result from the model would be followed in order to make sure that our model guarantee on extracting the supply network plan subordinated to the policy. Also we mention about further studies for improvement of the model.

• International Journal of Computer Science & Network Security
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• 제22권2호
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• pp.318-326
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• 2022

Marketing stress testing is a new method of identifying the company's strengths and weaknesses in a turbulent environment. Technically, this is a complex procedure, so it involves artificial intelligence and machine learning. The main problem is currently the development of methodological approaches to the development of the company's digital model, which will provide a framework for machine learning. The aim of the study was to identify and develop an author's approach to the parameterization of the company's business processes for machine learning-based marketing stress testing. This aim provided the company's activities to be considered as a set of elements (business processes, products) and factors that affect them (marketing environment). The article proposes an author's approach to the parameterization of the company's business processes for machine learning-based marketing stress testing. The proposed approach includes four main elements that are subject to parameterization: elements of the company's internal environment, factors of the marketing environment, the company' core competency and factors impacting the company. Matrices for evaluating the results of the work of expert groups to determine the degree of influence of the marketing environment factors were developed. It is proposed to distinguish between mega-level, macro-level, meso-level and micro-level factors depending on the degree of impact on the company. The methodological limitation of the study is that it involves the modelling method as the only one possible at this stage of the study. The implementation limitation is that the proposed approach can only be used if the company plans to use machine learning for marketing stress testing.

• Journal of Electrical Engineering and Technology
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• 제12권2호
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• pp.621-631
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• 2017

In this paper, we study the various impacts of connecting distributed generation (DG) to the distribution network. The comprehensive evaluation index system (CEIS) of four hierarchies is established, considering economy, reliability and voltage quality, and the calculation methods of different indexes are presented. This paper puts forward an improved triangular fuzzy number analytic hierarchy process (ITFNAHP) to weight the second level indexes (SLI) and the third level indexes (TLI), and calculates the variation coefficient to weight the fourth level indexes (FLI). We calculate the comprehensive weight coefficients based on the weight coefficients of the SLI, TLI and FLI, and then calculate the comprehensive evaluation of satisfaction (CES) of different access schemes. On the basis of the IEEE 33-bus example system, simulations of the calculation methods and the comprehensive evaluation method are carried out under different DG access schemes according to the same total investment cost and the same permeability, respectively, and the simulation results are analyzed and discussed.