• Journal of Digital Contents Society
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• v.4 no.2
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• pp.233-242
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• 2003

A TTS(Text-To-Speech) System is a computer-based system that should be able to read any text aloud. To output a natural voice, we need a general knowledge of language, a lot of time, and effort. Furthermore, the sound pattern of english has a variable pattern, which consists of phonemic and morphological analysis. It is very difficult to maintain consistency of pattern. To handle these problems, we present a system based on phonemic analysis for vowel and consonant. By analyzing phonological variations frequently found in spoken english, we have derived about phonemic contexts that would trigger the multilevel application of the corresponding phonological process, which consists of phonemic and allophonic rules. In conclusion, we have a rule data which consists of phoneme, and a engine which economize in system. The proposed system can use not only communication system, but also utilize office automation and so on.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.21 no.4
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• pp.347-353
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• 2003

Lately, Digital Photogrammetry has been increasingly applied to various hightech industries and becomes one of more interesting focuses of study than ever. Thus, this study aims to develop a Road Horizontal Alignment Information System by means of digital photogrammetry. Data acquired from digital photographic techniques were processed using Delphi, an object oriented programming language to develop a computer aided program, that allows us to build the information on Road Horizontal Alignment(Beginning Point of Curve, Ending Point of Curve, Radius, Intersection Point). The developed program could maximize visualization for better analysis compared with traditional programs because it utilizes many image data. Comparing with data from traditional horizontal alignment extraction programs based on the principle of least square method, the data acquired by Horizontal Alignment Information and kinematic GPS showed out of the developed road information systems the improved accuracy of IP value up to about 2m in the direction of X, Y axes, where the accuracy of curve radius(R) becomes enhanced up to about 2.5 m.

• Journal of the Korean Institute of Intelligent Systems
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• v.25 no.6
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• pp.558-564
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• 2015

This study is how to effectively apply this SNS based education to multicultural families and is to analyze how any change in the lives of multicultural families. Multicultural education in Korea has been steadily run by the government and local authorities, however the lack of free time, distances, for economic reasons and unfamiliarity of the new culture and language, immigrant women are not getting the education. To solve this problem, we provide the necessary information, such as culture, education, laws of the Korea for multicultural families and analyze their effect on life adjustment. And we also analyze changes to relieve loneliness. As a result multicultural family education utilizing SNS is verified that there is effectiveness to adapt and understand Korea. As well as inter-family, multicultural members to seamlessly communicate between each other that proved helpful to relieve loneliness.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.9 no.8
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• pp.1709-1715
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• 2005

This paper describes the development of 3-D web graphic library for dynamic web graphic design. The 3-D web graphic library developed in this per supports creation of 3-D objects like cube and sphere objects, elimination of hidden line and surface, and the shading of diffuse and specular reflections. It provides, in drawing, perspective projection of an object depth first sort of multiple objects, and wire frame and solid models. It also supports texture mapping function for realistic and dynamic web application in application software. Each created 3-D object gives functions for the scaling, translation, and rotation of itself. It can be used for the development of dynamic web application software and the advertisement of information for business and tourism as a 3-D web graphic library engine. It is written in 'Java' language and runs on web browsers with Java virtual machine without any dependancy of client computer system.

• Journal of KIISE:Computer Systems and Theory
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• v.30 no.10
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• pp.586-594
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• 2003

X-Match algorithm is a lossless compression algorithm suitable for hardware implementation owing to its simplicity. It can compress 32 bits per clock cycle and is suitable for real time compression. However, as the bus width increases 64-bit, the compression unit also need to increase. This paper proposes the cooperative parallel X-Match (X-MatchCP) algorithm, which improves the compression speed by performing the two X-Match algorithms in parallel. It searches the all dictionary for two words, combines the compression codes of two words generated by parallel X-Match compression and outputs the combined code while the previous parallel X-Match algorithm searches an individual dictionary. The compression ratio in X-MatchCP is almost the same as in X-Match. X-MatchCP algorithm is described and simulated by Verilog hardware description language.

• KIPS Transactions on Software and Data Engineering
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• v.6 no.5
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• pp.235-244
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• 2017

As creativity and problem-solving ability become core competencies, the main objectives of programming subjects in the elementary and secondary educational curriculum is 'computational thinking'. This goal can not be achieved at the level of understanding the characteristics of the programming language and the simple utilization abilities of the computer. The abilities to write algorithms and solve problems in real life situations using programming languages are required. In order to cultivate these abilities, the curriculum of the programming area was strengthened in the elementary and middle education curriculum, and the criteria for evaluating the achievement level were also prepared. However, the curriculum that can be used in actual education field is not yet established. In this study, we analyzed the researches on the existing programming curriculum and evaluated how well the curriculum meets the achievement criteria. Also, we can suggest the aspects to be considered in the study of programming curriculum and to verify whether the results of curriculum operation are in line with achievement criteria. In addition, future directions in elementary and middle school programming curriculum are suggested.

• Journal of the Korean association of regional geographers
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• v.4 no.2
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• pp.139-150
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• 1998

Recently in connection with the development of network technology, GIS researches shift their focuses to openGIS which enables to share heterogeneous geodata and geoprocessing resource under the environment of LAN and WAN. This study proposes an easy method to develope GUIs which enables openGIS in the intranet environment. In the developing stage of GUI, the most important thing is to develop effective windows programming technique and apply a internet linking technique to developed GUIs. This study shows an internet linking technique and a GUI developing method using OLE automation and ActiveX/COM standards. Using a case study of Taegu City Library, the study constructs a GIS database and develops its GUI which performs map overlaying, referencing attribute tables, drawing up of thematic map, buffer analysis, and statistical calculations. This study remains same further research areas of developing a new advanced technique for openGIS and its GUI using distributed object model of CORBA, Java language, and JDBC data accessing technique.

• Journal of KIISE:Computing Practices and Letters
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• v.8 no.5
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• pp.574-582
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• 2002

Web technology for next generation, led by W3C, is focusing on overcoming of limitation of Human-oriented Web. With circumstance of dramatic increasing information flow in current existing Web, human view based HTML technology is significantly loosing its value. To overcome limitation of Human-oriented Web, new alternative method is essentially required In this context, Machine-oriented Web which machine is searching for information, has been researched as a new alternative. This thesis reviewed MDL (Meaning Definition Language) which is regarded as most generally using method for implementation of Machine-Oriented Web, and presented modeling concept and implementation method in detail. To verify tile value of this presented implementation method, this thesis includes actual cases which has based on proposed implementation method. As an end, we have tried to give a technical assistance to developer of MDL Editor by suggesting MDL Editor implementation display, which has been founded on the proposed modeling method.

• 대한공업교육학회지
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• v.33 no.1
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• pp.233-248
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• 2008

Stream Control Transmission Protocol(SCTP) is a new transport protocol that is known to provide improved performance than Transmission Control Protocol(TCP) in multi-homing environment that is having two and more IP addresses. But currently single-homed computer is used primarily that is having one IP address. To identify whether mean transfer time for SCTP is faster that for TCP in single-homed environment considering packet loss, we make up real testbed regulating the bandwidth, delay time and packet loss rate on router and observe the transfer time. We write server and client applications to measure SCTP and TCP mean transfer time by C language. Analysis of these experimental results from the testbed implementation shows that mean transfer time of SCTP is not better than performance of TCP in single homed environment exceptional case. Main reasons of performance are that SCTP compared to TCP stops transmitting data by timeout and data transmission is often delayed when SACK congestion happens. The result of study shows that elaborate performance tuning is required in developing a new SCTP module or using a implemented SCTP module.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.26 no.5
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• pp.1171-1183
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• 2016

Today, many domestic companies often face the lawsuits from the U.S. companies as they expand their business in the U.S. market and it is necessary for the domestic companies to prepare for the e-Discovery process in the systematic manner. Yet, the e-discovery system has not been properly established in Korea, however, domestic companies are growing more and more interests in e-Discovery processes and procedures so that they are seeking for the appropriate actions that they should take when facing lawsuits. When adopting the e-Discovery system in Korea, there are three main considerations including the differences in laws and regulations, enterprise system and language and company culture. This study aims to draw the problems for the Korean domestic companies in responding the U.S. lawsuits and to suggest the specialized e-discovery processes and procedures to effectively overcome them.