• International journal of advanced smart convergence
• /
• 제10권1호
• /
• pp.1-11
• /
• 2021

Document page segmentation is an important step in building a quality optical character recognition module. The study examined already existing work on the topic of page segmentation and focused on the development of a segmentation model that has greater functional significance for application in an organization, as well as broad capabilities for managing the quality of the model. The main problems of document segmentation were highlighted, which include a complex background of intersecting objects. As classes for detection, not only classic text, table and figure were selected, but also additional types, such as signature, logo and table without borders (or with partially missing borders). This made it possible to pose a non-trivial task of detecting non-standard document elements. The authors compared existing neural network architectures for object detection based on published research data. The most suitable architecture was RetinaNet. To ensure the possibility of quality control of the model, a method based on neural network modeling using the RetinaNet architecture is proposed. During the study, several models were built, the quality of which was assessed on the test sample using the Mean average Precision metric. The best result among the constructed algorithms was shown by a model that includes four neural networks: the focus of the first neural network on detecting tables and tables without borders, the second - seals and signatures, the third - pictures and logos, and the fourth - text. As a result of the analysis, it was revealed that the approach based on four neural networks showed the best results in accordance with the objectives of the study on the test sample in the context of most classes of detection. The method proposed in the article can be used to recognize other objects. A promising direction in which the analysis can be continued is the segmentation of tables; the areas of the table that differ in function will act as classes: heading, cell with a name, cell with data, empty cell.

• 디지털융복합연구
• /
• 제10권5호
• /
• pp.215-222
• /
• 2012

전화 기능과 컴퓨터 기능을 갖는 스마트폰의 보급으로 장소에 구애받지 않는 모바일 상거래에 대한 수요가 급증하고 있다. 상거래 서비스는 인증 기법을 적용하여 거래 내용과 거래 당사자에 대한 법적 구속력을 갖는 증거를 남겨야 한다. 스마트폰은 개인용 컴퓨터와 달리 개인정보 노출의 위험이 있고 기기 분실 및 도용에 따른 대리 인증이 상대적으로 쉽다. 기존의 패스워드 및 토큰 기반의 인증 기법은 사용자와 아이디를 물리적으로 연결시키지 못하므로 대리 인증 문제를 해결할 수 없다. 따라서 스마트폰을 모바일 상거래 플랫폼으로 활용하기 위해서는 법적 구속력이 있고 대리 인증이 어려운 새로운 사용자 인증 기법에 대한 연구가 필요하다. 본 논문에서는 사용자 고유 음성 정보와 스마트폰 USIM 정보를 접목한 모바일 ID를 생성하고 이에 기반을 둔 사용자 인증 기법을 설계 및 구현하였다.

• 디지털융복합연구
• /
• 제12권1호
• /
• pp.525-530
• /
• 2014

본 연구는 스마트 미디어를 통해 TV영상물을 시청할 때, 스마트 미디어의 화면 크기가 수용자들의 영상물 평가와 프레즌스에 어떤 영향을 미치는지 살펴본 실험 연구이다. 본 연구를 위하여 대학생 피험자들에게 TV 자연다큐멘터리를 화면의 크기가 다른 스마트 미디어를 통해 시청하게 하고, 설문조사를 통해 프로그램에 대한 평가와 프레즌를 조사, 분석하였다. 설문조사의 결과를 분석한 결과, 화면이 큰 스마트 미디어를 통해 영상물을 시청한 피험자들이 화면이 작은 스마트 미디어를 통해 시청한 피험자들보다 프로그램의 영상미에 관해 더 훌륭하다는 평가를 하였으며, 프레즌스를 더 크게 느낀 것으로 나타났다. 그러나 화면의 크기가 프로그램의 작품성에 미치는 영향은 발견되지 않았다. 본 연구를 통해 스마트 미디어를 통한 TV영상물 시청에 있어서, 화면의 크기가 수용자들의 프로그램의 영상미에 관한 평가와 프레즌스에 영향을 미치는 중요한 요인이라는 사실을 알 수 있었다.

• 스마트미디어저널
• /
• 제2권3호
• /
• pp.17-22
• /
• 2013

NFC 스마트폰의 보급 증가는 앱과 연계하여 다양한 서비스를 제공하고 있으며, 단순한 인터넷 서비스를 개인화 서비스로 변화 시킬 것으로 예상되고 있다. 본 논문은 정보 접근을 위한 NFC 태그의 정보를 이용하여 유사정보를 활용할 수 있도록 검색 정보를 군집하는 시스템 모델을 제안한다. 제안된 모델을 NFC 태그에서 제공하는 정보를 이용하여 유사 정보를 검색할 수 있다. 또한 검색된 유사정보를 사용자가 활용할 수 있도록 주제별 군집할 수 있다.

• 스마트미디어저널
• /
• 제4권3호
• /
• pp.44-49
• /
• 2015

Text line segmentation is a preprocessing step in OCR, which can significantly influence the accuracy of document analysis applications. This paper proposes a novel methodology for the text line segmentation of handwritten documents. First, the average width of the connected components is used to form a 1-D Gaussian kernel and a smoothing operation is then applied to the input binary image. The adaptive binarization of the smoothed image forms the final text lines. In this work, the segmentation method involves two stages: firstly, the large connected components are labelled as a unique text line using text line area mapping. Secondly, the final refinement of the segmentation is performed using the Euclidean distance between the text line and small connected components. The group of uniquely labelled text candidates achieves promising segmentation results. The proposed approach works well on Korean and English language handwritten documents captured using a camera.

• Journal of Information Processing Systems
• /
• 제18권2호
• /
• pp.173-187
• /
• 2022

A special government agency has been charged with implementing quality management to guarantee the quality of wild-simulated ginseng. However, these processes are carried out by use of documents, and this has resulted in information omission and high document management costs. To solve this problem, this study analyzed the existing quality management process by using a smart contract for the existing offline form and proposed a new quality management system for storing and managing all log data in the blockchain. This system reduced documentation management costs about quality management and recorded information in the previous step through the quality management steps, thus forming a step-by-step record chain. Experiments were conducted by implementing this system, which improved data integrity and reliability. Additionally, sensitive information, such as personal information, was included in the system by use of the off-chain technology.

• Genomics & Informatics
• /
• 제20권1호
• /
• pp.10.1-10.15
• /
• 2022

Human exposure to pollutants has been on the rise. Thus, researchers have been focused on understanding the effect of these compounds on human health, especially on the genetic information by using various tests, among them the somatic mutation and recombination tests (SMARTs). It is a sensitive and accurate method applicable to genotoxicity analysis. Here, a comprehensive bibliometric analysis of SMART assays in genotoxicity studies was performed to assess publication trends of this field. Data were extracted from the Web of Science database and analyzed by the bibliometric tools HistCite, Biblioshiny (RStudio), VOSViewer, and CiteSpace. Results have shown an increase in the last 10 years in terms of publication. A total of 392 records were published in 96 sources mainly from Brazil, Spain, and Turkey. Research collaboration networks between countries and authors were performed. Based on document co-citation, five large research clusters were identified and analyzed. The youngest research frontier emphasized on nanoparticles. With this study, how research trends evolve over years was demonstrated. Thus, international collaboration could be enhanced, and a promising field could be developed.

• 한국건설관리학회논문집
• /
• 제14권2호
• /
• pp.117-130
• /
• 2013

최근 건설 산업의 경향은 대형화, 국제화 되고 발주자는 사업수행기간의 단축을 요구하는 환경 속에서 건설 현장의 다양한 업무내용을 효과적으로 관리하는 일은 매우 어려운 과제가 되어가고 있다. 이러한 문제를 해결하기 위한 대안으로 선진외국에 2000년대 초부터 지속적으로 공정관리/시공관리/자원관리/노무관리/문서관리 등의 다양한 공사정보를 상호 교환할 수 있는 Web 기반의 PMIS 개발에 주력해왔다. 하지만, 최근 들어 스마트폰과 태블릿 PC와 같은 IT기기의 활발한 보급과 더불어 현장에서도 클라이언트 PC를 통한 PMIS 접근 방식보다 신속하게 다양한 공정변화에 신속히 대응할 수 있는 스마트형 PMIS 개발에 대한 기대가 높아지고 있는 시점이다. 따라서, 본 연구는 기존 Web 기반의 PMIS를 현장 작업자가 공사현장 또는 이동 중에도 태블릿 PC와 스마트폰과 연계하여 활용하는 차세대 스마트형 PMIS를 개발하고자 하며, 이러한 차세대 스마트형 PMIS의 개발 과정과 개발된 주요기능을 소개하는 데에 목적이 있다.

• The Journal of Asian Finance, Economics and Business
• /
• 제7권10호
• /
• pp.323-328
• /
• 2020

This study aims to analyze the changes in purchasing decisions in conducting transactions using cash and digital payment systems. Cash payment systems are very different from digital payments because they no longer use banks as intermediaries for transactions. The scope of this study is to determine the differences that take place with purchasing decisions using digital payment systems with OVO Indonesia smart applications. By using the paired T-test sample test method and testing the regression class assumptions, it is expected we will document the comparison between cash and digital payment systems as regards changes in consumers' buying interest behavior towards goods. Data is obtained by purposive sampling using special characteristics for smart application users. The results show that digital payments are developing very quickly, but cash payments still dominate due to the unavailability of complete facilities and infrastructure to support digital payment systems other than in cities. This study illustrates that digital payments have not been able to completely change consumer buying behavior in large numbers, but the main finding in this study is an increase in the percentage of digital payment usage to the online market, due to the many conveniences provided in OVO smart applications.

• 한국IT서비스학회지
• /
• 제14권2호
• /
• pp.289-314
• /
• 2015

Recently, Most of the companies and government offices are under consideration about the adoption of cloud office service to actualize the smart work policies. Comparing with traditional office software, a cloud office service have the advantage of the method of payment and coming over the physical limitations. Many cloud office service users tend to adopt an official evaluated the service without doubt. However after deciding to adopt cloud office service, many users are faced with a variety of problems and difficulties practically. In this study, researchers carried out interview about those problems and difficulties after adopting a cloud office service. Consequently, there are several problems and difficulties such as compatibility, document security, document lost and maladjusted to the new graphic user interface between traditional office software and a cloud office service. A cloud office service have still several advantages not only a competitive price but also ubiquitous attributes. Thus, researchers need to study about what kinds of reason variables can solve those problems and difficulties. In existing research, DeLone & McLean have suggested information system success model. They use three independent variables which are system quality, information quality, service quality. Parameters are user satisfaction, intention to use and use. Lastly, dependent variables are net benefits. However in this study, we need to change the scope of measurement. In other words, we have to replace parameters with dependent variables. Simply, user satisfaction, intention to use and use is going to be dependent variables. There are several reasons why we need changing variables. First, we aim at giving a some suggestions to a cloud service providers which independent variables do not work to satisfy for the users. Second, we need to find out how to maximize cloud office service user's satisfaction and intention to use. Third, we should firstly know that relationship between independent variables and dependent variables. Finally, those research results give for the cloud office service provider to solve the cloud office service adopting problems and difficulties.