• International Journal of Computer Science & Network Security
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• v.21 no.3
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• pp.103-111
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• 2021

Obesity affects individuals of all gender and ages worldwide; consequently, several studies have performed great works to define factors causing it. This study develops an effective method to trace obesity levels based on supervised data mining techniques such as Random Forest and Multi-Layer Perception (MLP), so as to tackle this universal epidemic. Notably, the dataset was from countries like Mexico, Peru, and Colombia in the 14- 61year age group, with varying eating habits and physical conditions. The data includes 2111 instances and 17 attributes labelled using NObesity, which facilitates categorization of data using Overweight Levels l I and II, Insufficient Weight, Normal Weight, as well as Obesity Type I to III. This study found that the highest accuracy was achieved by Random Forest algorithm in comparison to the MLP algorithm, with an overall classification rate of 96.7%.

• International Journal of Computer Science & Network Security
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• v.21 no.5
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• pp.199-210
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• 2021

Recently, research in blockchain technology has grown in popularity. Most of these researches have pointed out designing and improving conceptual structures to create digital systems that are more secure, accessible, and effective. Although blockchain offers a wide range of advantages, it also has some pitfalls. This research aims to present an understanding of the properties of blockchain, the advantages, pitfalls, and applications based on blockchain technology. To achieve the goal of understanding blockchain technology concepts, a systematic literature review approach was introduced. 93 papers were chosen and reviewed in total. Therefore, this research provides a summary of recent studies that have been published in the field of blockchain. Moreover, we have created concept maps and tables that aid in a deep understanding of blockchain technology concepts and exhibit some of the blockchain applications. In blockchain-based applications, we focused on two areas, namely the Internet of Things (IoT) and healthcare.

• Proceedings of the KWS Conference
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• 2002.10a
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• pp.314-319
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• 2002

The Automation and Control Group at the University of Brasilia is developing an automatic welding station based on an industrial robot and a controllable welding machine. Several techniques were applied in order to improve the quality of the welding joints. This paper deals with the implementation of a laser-based computer vision system to guide the robotic manipulator during the welding process. Currently the robot is taught to follow a prescribed trajectory which is recorded a repeated over and over relying on the repeatability specification from the robot manufacturer. The objective of the computer vision system is monitoring the actual trajectory followed by the welding torch and to evaluate deviations from the desired trajectory. The position errors then being transfer to a control algorithm in order to actuate the robotic manipulator and cancel the trajectory errors. The computer vision systems consists of a CCD camera attached to the welding torch, a laser emitting diode circuit, a PC computer-based frame grabber card, and a computer vision algorithm. The laser circuit establishes a sharp luminous reference line which images are captured through the video camera. The raw image data is then digitized and stored in the frame grabber card for further processing using specifically written algorithms. These image-processing algorithms give the actual welding path, the relative position between the pieces and the required corrections. Two case studies are considered: the first is the joining of two flat metal pieces; and the second is concerned with joining a cylindrical-shape piece to a flat surface. An implementation of this computer vision system using parallel computer processing is being studied.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.14 no.2
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• pp.229-237
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• 2003

Objectives：Among the studies related to excessive computer use, the studies for elementary school students are relatively rare. Because children have relatively poor ability to recognize and express themselves, the carers' information is important to assess the children. This study attempted to investigate the relationship between children's computer use and sociopsychiatric characteristics on the basis of carers' reports. Methods：The subjects of this study were 287 5th- and 6th-grade students in the elementary school in Seoul. The student carers were asked to answer the questions for children's computer use, the computer addiction test modified from Young's parent-child internet addiction test, Korean Personality Inventory for Children(K-PIC). SPSS(version 10) was used to analyse the differnece of computer use between genders and the relation of the computer addiction test with K-PIC. Results：1) The score of computer addiction test was significantly higher in male children than in female children and more male children compared to female children were distributed in the excessive user group. 2) The score of computer addiction test correlated with the scores of most clinical scales of K-PIC and the average scores of most clinical scale were significantly higher in the excessive user group than in the general user group. 3) More children with score above 65 in HPR, DLQ, FAM scale were distributed in excessive user group than in general user group. Conclusion：The 5th- and 6th-grade elementary school students with excessive computer use were found to show more sociopsychiatric problems. With these finding we suggest that social and clinical attention to the children who use computer excessively shoud be required.

• Journal of Gifted/Talented Education
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• v.20 no.1
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• pp.79-106
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• 2010

Leadership education is part of the goals of special education for the gifted of computer science. However, there has been little research effort on leadership curriculums and programs specially designed for the gifted of computer science by reflecting their characteristics. Thus this paper was conducted to design educational contents of leadership for the gifted of computer science as follows:First, common elements were extracted from the goals and characteristics of special education for the gifted of computer science and from the previous studies through analysis. Then basic data were selected helpful to choose educational contents of leadership for the gifted of computer science. Second, the definitions and characteristics of leadership were analyzed along with the previous studies to find common elements. By defining relations between the gifted of computer science and leadership, the investigator also examined the leadership characteristics to be considered when choosing educational contents. Third, educational contents of leadership for the gifted of computer science were selected and designed based on the leadership elements developed by the Korean Educational Development Institute(2005). Fourth, leadership activity logs and reading materials were developed of the education for the gifted of computer science based on the educational contents for their leadership. And fifth, Delphi analysis was carried out to test the validity of the leadership activity logs and reading materials developed in the study in two sessions; the first one tested the overall design of the educational contents, and the second one did the detailed contents of the activity logs and reading materials.

• Proceedings of the Korea Information Processing Society Conference
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• 2006.05a
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• pp.19-22
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• 2006

최근 들어, 모든 장소에 컴퓨터가 있고 그것을 누구나 자유롭게 사용할 수 있는 인간 중심 유비쿼터스 환경에 대한 연구가 활발하게 진행되고 있다. 그러나 이러한 컴퓨팅 환경에서의 센서 미들웨어들은 연속적인 스트림 데이터 처리에 대한 막대한 비용을 줄이기 위해서 분석이 끝난 스트림 데이터를 삭제한다. 따라서 사용자의 서비스에 삭제된 스트림 데이터가 요구될 경우, 또는 과거 데이터들에 대한 확률 통계 정보가 요구될 경우, 이에 대한 서비스를 사용자에게 제공할 수 없다. 본 논문에서는 이러한 미들웨어에서의 스트림 데이터 재사용 문제를 해결하기 위해서 스냅샷을 가지는 다중 레벨 공간 DBMS를 기반으로 하는 효율적인 센서 데이터 미들웨어 구조를 설계하였다. 본 시스템은 사용자에게 재사용될 가치가 높은 스트림 데이터들을 다중 레벨 공간 DBMS 의 디스크 데이터베이스에서 관리한다. 또한 빈번한 서비스를 가지는 스트림 데이터의 경우 해당 스트림 데이터를 메모리 데이터베이스에 관리함으로서 사용자에게 신속한 서비스를 제공한다. 본 시스템은 기존의 미들웨어에서 지원할 수 없었던 동일한 스트림 데이터에 대한 빈번한 요청, 또는 확률이나 통계 자료와 같은 데이터 서비스 요청 문제들을 해결하였다. 그리고 메인 메모리 데이터베이스에 스냅샷 형태로 저장되는 스트림 데이터의 높은 데이터 재사용성을 유지함으로서, 사용자에게 지속적으로 정확하고 신속한 데이터 서비스를 제공한다.

• Journal of Korea Multimedia Society
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• v.6 no.4
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• pp.714-722
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• 2003

Men's clothing has been recently giving higher market shares to the ready-made clothes rather than the custom-tailored clothes. With many active studies on the human body and design, the ready-made clothes win popularity due to their rapid repairing, various design, and cheap prices, though they are not perfect suitable for some people. Therefore the ready-made has a weak point unable to consider all of the individual physical characteristics. However the custom-tailored clothes ate able to make clothing perfectly suitable lot their customers, though they require longer time-taking and expensive costs. In this context, this paper is design and implementation an automatic design edit system to provide a rapid and cheap service for customers on the ground of the custom-tailored clothes. In other words, this paper intended to use computer systems lot rapidly and precisely providing design dependent on the individual physical characteristics including a distorted bodies, types of the leg, and a height of the shoulder. To do so, the paper using not only studies on the human body and the custom-tailored clothes but also technical know-hows planned design for each individual body by LISP language and automatically process the design through CAD system. Consequently, the rapid and precise processing has reduced inventories and production costs, leading to supplying high quality clothes at lower prices.

• Journal of the Korean Association of Geographic Information Studies
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• v.11 no.3
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• pp.43-51
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• 2008

In this paper, we present WebGIS techniques that can acquire more information from users who offered information and location of region's crops. So that it can be search the information based on Ontology defining Metadata for understand and control more accurately. And this paper shows how to implement about prototype of crops information system for obtaining information of location. Our object is to offer results Service form search, to analyze question of user and to show the exact geographic information about question of user. So this paper can be provide convenience to users that can be show Semantic WebGIS system.

• Journal of Korea Multimedia Society
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• v.23 no.2
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• pp.274-281
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• 2020

The use of information systems improves a company's service quality and provides efficient information management. The establishment of an information system has become an essential element. In designing and developing a large number of screens when building an information system, As the number of screens increases, so does the cost and time. In addition, modifications can increase the cost of maintenance and exceed the cost of development. In order to solve these problems, there have been studies to design the screen simply and easily, but there is a shortage in reducing the maintenance cost. In this paper, we have studied the layout algorithm for managing the attributes of the screen components as data structures based on the designed screen and arranging the components on the screen. And we compared the proposed method and the methods that have been studied in the related studies. Screen component layout methods can automatically deploy screen components to consistently develop a large number of screens and reduce cost and manpower by reducing the time it takes to deploy screens.

• Journal of Information Processing Systems
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• v.12 no.4
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• pp.741-753
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• 2016

In the medical fields, many efforts have been made to develop and improve Hospital Information System (HIS) including Electronic Medical Record (EMR), Order Communication System (OCS), and Picture Archiving and Communication System (PACS). However, materials generated and used in medical fields have various types and forms. The current HISs separately store and manage them by different systems, even though they relate to each other and contain redundant data. These systems are not helpful particularly in emergency where medical experts cannot check all of clinical materials in the golden time. Therefore, in this paper, we propose a process to build an integrated data model for medical information currently stored in various HISs. The proposed data model integrates vast information by focusing on medical images since they are most important materials for the diagnosis and treatment. Moreover, the model is disease-specific to consider that medical information and clinical materials including images are different by diseases. Two case studies show the feasibility and the usefulness of our proposed data model by building models about two diseases, acute myocardial infarction (AMI) and ischemic stroke.