• 한국인터넷방송통신학회논문지
• /
• 제23권4호
• /
• pp.85-91
• /
• 2023

국산 마이크로서버인 KOSMOS의 활용을 위해 클라우드 컴퓨팅 분야의 실제 응용 서비스 기반 벤치마크 프로그램인 CloudSuite로 성능 평가 결과를 제시한다. CloudSuite는 오프라인 응용과 온라인 응용의 두 가지 부분에서 클라우드 서비스로 제공되는 몇 가지의 구분되는 응용 프로그램을 컨테이너 기반으로 제공하고 있다. KOSMOS의 유사 스펙의 비교군인 다른 마이크로서버와의 성능 비교에서 전 부분에 걸처 KOSMOS가 우수하였으며, 인텔 Xeon CPU 기반 서버와의 비교에서도 일부 오프라인 응용에서는 성능이 더 우수하였다. CloudSuite 오프라인 응용 벤치마크 프로그램인 Graph Analytics 수행 시 KOSMOS의 다수의 노드들을 분산 실행시킨 형상에서 인텔 Xeon CPU 기반 2개의 서버 비교군과 비교하였을 때, 각각 30.3%, 72.3%만큼의 수행시간을 감소시켰다.

• 동아시아경상학회지
• /
• 제11권3호
• /
• pp.11-25
• /
• 2023

Purpose - The goal of this study is to grasp the current status of the latest overseas direct purchase trends and diversified consumption tendencies, and it can be used as basic quantitative data for selecting the overseas direct purchase market and establishing policies in the e-commerce industry. This study examines the relevance between purchasing equipment and four demographics. Traits of the underlying purchasing equipment are cell phones, tablet PCs and PCs & notebooks. Research design, data, and methodology -This survey was performed in 2021 on a total of 4,537 combined panel households covering 3,510 households and 191,027 additionally set in 2019 and approximately 10,800 household members. In particular, correspondence analysis is utilized to mine the relevance among the underlying variables. Result - It is proved that the underlying demographics except age are relevant to the purchasing equipment of online overseas shopping. Especially, cell phones are closely relevant '2 million-3 million won', jointly relevant to 'service and office work' and marginally to all other academic levels except graduate school or higher. Conclusion - Under intense competition, overseas direct purchase shopping malls should strive to provide not only price competitiveness but better service and customer value in order to continue to grow.

• 창의정보문화연구
• /
• 제4권3호
• /
• pp.221-230
• /
• 2018

추천 시스템의 주요 방법인 협력 필터링 기술은 실제 상업용 온라인 시스템에서 성공적으로 구현되어 서비스가 제공되고 있다. 그러나, 이 기술은 본질적으로 여러 가지 단점을 내포하는데, 데이터 희소성, 콜드 스타트, 확장성 문제 등이 그 예이다. 확장성 문제를 해결하기 위하여 클러스터링 기법을 활용한 협력 필터링 방법이 연구되어 왔다. 본 연구에서 제안하는 협력 필터링 시스템에서는 가장 널리 활용되는 클러스터링 기법들 중 하나인 K-means 알고리즘의 단점을 개선하고자 유전자 알고리즘을 이용한다. 또한, 기존 연구에서 최적화된 클러스터링 결과를 추구하였던 것과는 달리, 제안 방법은 클러스터링 결과를 활용한 협력 필터링 시스템 성능의 최적화를 목표로 하므로, 실질적으로 시스템의 성능을 향상시킬 수 있다.

• 유통과학연구
• /
• 제21권5호
• /
• pp.1-9
• /
• 2023

Purpose: Marketing and especially distribution channels has proved challenging for small and medium-sized enterprises (SMEs) worldwide due to its exorbitant cost. The objective of this study is to access the role and impact of digital marketing as a new distribution channel in companies located in Kosovo. Research design, data and methodology: To achieve the objective of the research, data was collected from 64 respondents/participants working in different organizations and sectors. Results: The result of the data collected showed that digital marketing plays a huge role and an effective medium in distribution of products and services, and helps in boosting sales of companies. The results showed that this form of marketing helps with retention of customers and cost effectiveness. Conclusions: The managerial implication of this study is that it is believed that customers in the topical conversation region are impacted by Kosovo businesses and their online marketing initiatives. The results of this study suggest that marketers and managers should take advantage of social media in order to accomplish the study's main objective. However, for enhanced productivity and high-level effectiveness of Digital marketing in Kosovo, there should be proper sensitization on the available digital marketing options and how it can be done.

• 한국컴퓨터정보학회논문지
• /
• 제14권2호
• /
• pp.191-199
• /
• 2009

본 논문에서는 핸드폰, 스마트폰, PDA폰 등의 모바일폰에서 동작하는 강건하고 경량화된 한국어 형태소 분석기를 제안한다. 이들 모바일 장치들은 낮은 CPU 성능과 메모리 사용에서의 제약으로 인해 자연언어 인터페이스를 적용하기 곤란했다. 본 논문에서는 1) 키 이벤트 핸들러 (Key Event Handler)를 이용한 온라인 형태소 분석과 2) 붙여 쓴 오류 문장에 대해 띄어쓰기 오류 교정의 전처리 과정 없이 강건한 형태소 분석 방법을 제안한다. 본 논문에서 제안된 경량화된 한국어 형태소 분석기는 모바일 한영 번역기 시제품에 적용하여 메모리 사용량은 5.8% 줄이고 평균 반환 시간은 19.0% 개선하였다.

• 패션비즈니스
• /
• 제26권1호
• /
• pp.53-67
• /
• 2022

The purpose of this study was to compare the appearance similarity between a 3D virtual wedding dress, and a model wearing real dress, and production efficiency, and the possibility of achieving similar results with 3D digital technology. Five wedding dresses for small weddings under the theme of 'Dream Series', were designed and produced in virtual and real dresses to quantitatively compare and analyze the appearance similarity and production efficiency. Experts compared the appearance similarity on the silhouettes, colors, materials, and details, and production efficiency was compared with time and cost. Based on our results, 3D virtual images of four out of the five dresses were similar to the real images. Our efficiency evaluation results showed that the manufacturing time was 45.4% shorter, and the manufacturing cost was 46.1% less than the existing method. This indicated that the wedding dress manufacturing process using 3D virtual software was time and cost saving competitive. Our results also confirmed that 3D virtual software technology has the potential to increase the efficiency of designing and production, and therefore an increase in competitiveness and sales of wedding dresses. Furthermore, 3D technology allows consumers to select and order wedding dresses online through 3D virtual software. This is a great advantage, and it highlights the significance of this research study.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• 제16권5호
• /
• pp.1687-1707
• /
• 2022

With the development of multiuser online meetings, more group-oriented technologies and applications for instance collaborative work are becoming increasingly important. Authenticated Group Key Agreement (AGKA) schemes provide a shared group key for users with after their identities are confirmed to guarantee the confidentiality and integrity of group communications. On the basis of the Public Key Cryptography (PKC) system used, AGKA can be classified as Public Key Infrastructure-based, Identity-based, and Certificateless. Because the latter type can solve the certificate management overhead and the key escrow problems of the first two types, Certificateless-AGKA (CL-AGKA) protocols have become a popular area of research. However, most CL-AGKA protocols are vulnerable to Public Key Replacement Attacks (PKRA) due to the lack of public key authentication. In the present work, we present a CL-AGKA scheme that can resist PKRA in order to solve impersonation attacks caused by those attacks. Beyond security, improving scheme efficiency is another direction for AGKA research. To reduce the communication and computation cost, we present a scheme with only one round of information interaction and construct a CL-AGKA scheme replacing the bilinear pairing with elliptic curve cryptography. Therefore, our scheme has good applicability to communication environments with limited bandwidth and computing capabilities.

• 한국직업건강간호학회지
• /
• 제31권2호
• /
• pp.43-56
• /
• 2022

Purpose: This study was conducted to explore male nurses' experiences of gender discrimination at the workplace using qualitative research methods. Methods: Participants responded to a survey using an online link, and were asked to describe their overall experiences by responding to the question "Please freely describe your experiences of workplace gender discrimination". The qualitative data collected from 118 participants were analyzed using Krippendorff's technique. Data collection was caried out from June 11, 2019, to August 3, 2020. Results: Eleven themes and 24 subthemes were extracted from a total of 277 meaningful statements. Male nurses' experiences of workplace gender discrimination, reasons of gender discrimination, and improvement strategies were presented through the key themes. Conclusion: Male nurses experienced workplace gender discrimination from patients, colleagues, and institutions. Furthermore, strategies to improve gender stereotypes and to emphasize the strengths of male nurses are necessary in order to increase the number of male nurses in the female-dominant nursing field and to reduce job turnover. These strategies will help expand the social role of nurses as professionals and improve the work environment and benefits for all nurses.

• International Journal of Computer Science & Network Security
• /
• 제23권6호
• /
• pp.169-175
• /
• 2023

Ethical hackers are using different tools and techniques to encounter malicious cyber-attacks generated by bad hackers. During the software development process, development teams typically bypass or ignore the security parameters of the software. Whereas, with the advent of online web-based software, security is an essential part of the software development process for implementing secure software. Security features cannot be added as additional at the end of the software deployment process, but they need to be paid attention throughout the SDLC. In that view, this paper presents a new, Ethical Hacking - Software Development Life Cycle (EH-SDLC) introducing ethical hacking processes and phases to be followed during the SDLC. Adopting these techniques in SDLC ensures that consumers find the end-product safe, secure and stable. Having a team of penetration testers as part of the SDLC process will help you avoid incurring unnecessary costs that come up after the data breach. This research work aims to discuss different operating systems and tools in order to facilitate the secure execution of the penetration tests during SDLC. Thus, it helps to improve the confidentiality, integrity, and availability of the software products.

• 인간식물환경학회지
• /
• 제22권2호
• /
• pp.181-197
• /
• 2019

This study is to analyze the current state, trend, and preference of the three chrysanthemum festivals representing South Korea that are hosted by local governments, and it is to be used as the basic data for preparing effective plans for the chrysanthemum festivals. The study was conducted from April 20, 2013 to November 25, 2017, and literature review, online search, interviews with persons in charge, field survey, and questionnaire survey were performed. As a result of the field survey, all three festivals had their space structures divided, themes decided and space images depicted based on chrysanthemum sculptures. The landmarks of the city, cultural assets, or great figures were selected to the main theme of the major chrysanthemum sculptures. The sculptures were decorated realistically for users to easily recognize the image. The main chrysanthemum sculptures tended to be introduced repeatedly. As results of the current state of visit and preference, it was found that the number of visitors has increased every year, along with revisits. The satisfaction and the preference for the festival were evaluated positively, and the chrysanthemum festival has become a local festival representing autumn, and a resource for vitalization of the regional economy. However, as a result of the survey, insufficient parking space and resting place, change of image of the sculptures, experience programs, and food shall be improved in order to increase the users satisfaction.