• Journal of the Korea Institute of Information Security & Cryptology
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• v.29 no.2
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• pp.275-285
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• 2019

Web-assemblies are a new binary standard designed to improve the performance of Web browser JavaScript. Web-assemblies are becoming a new web standard that can run at near native speed with efficient execution, concise representation, and code written in multiple languages. However, current Web-assembly vulnerability verification is limited to the Web assembly interpreter language, and vulnerability verification of Web-assembly binary itself is insufficient. Therefore, it is necessary to verify the safety of the web assembly itself. In this paper, we analyze how to operate the web assembly and verify the safety of the current web-assembly. In addition, we examine vulnerability of existing web -assembly and analyze limitations according to existing safety verification method. Finally, we introduce web-assembly API based fuzzing method to overcome limitation of web-assembly safety verification method. This verifies the effectiveness of the proposed Fuzzing by detecting crashes that could not be detected by existing safety verification tools.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.30 no.4
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• pp.669-677
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• 2020

As the number of Internet users exploded, attacks on the web increased. In addition, the attack patterns have been diversified to bypass existing defense techniques. Traditional web firewalls are difficult to detect attacks of unknown patterns.Therefore, the method of detecting abnormal behavior by artificial intelligence has been studied as an alternative. Specifically, attempts have been made to apply natural language processing techniques because the type of script or query being exploited consists of text. However, because there are many unknown words in scripts and queries, natural language processing requires a different approach. In this paper, we propose a new classification model which uses byte pair encoding (BPE) technology to learn the embedding vector, that is often used for web attack payloads, and uses an attention mechanism-based Bi-GRU neural network to extract a set of tokens that learn their order and importance. For major web attacks such as SQL injection, cross-site scripting, and command injection attacks, the accuracy of the proposed classification method is about 0.9990 and its accuracy outperforms the model suggested in the previous study.

• Proceedings of the Korea Information Processing Society Conference
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• 2003.11b
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• pp.1325-1328
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• 2003

구성원들이 직접 정보를 제공하고 책임지는 정보 실명제를 기반으로 모든 구성원이 손쉽게 정보를 제공할 수 있도록 CMS(Contents Management System) 형태의 UIP(University Information Portal) 시스템을 구축하였다. 또한 UML(Unified Modeling Language)과 CBD(Component Based Development) 개발 기법을 적용하여 UIP 시스템에서 사용되었던 컴포넌트들을 다른 웹 기반 시스템에서도 손쉽게 사용할 수 있도록 하여 개발 코드를 재사용 할 수 있도록 하였다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2023.07a
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• pp.371-372
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• 2023

본 논문에서는 대규모 언어 모델(Large Language Models)을 기반으로 한 입학 상담용 챗봇을 설계하였다. 입시 전문 LLM은 Polyglot-ko 5.8B을 베이스 모델로 대학의 입시 관련 데이터를 수집, 가공한 후 데이터 증강을 하여 파인튜닝 하였다. 또한, 모델 성능 향상을 위해 RLHF의 후 공정을 진행하였다. 제안 챗봇은 생성한 입시 LLM을 기반으로 웹브라우저를 통해 접근하여 입시 상담 자동 응답 서비스를 활용할 수 있다.

• Proceedings of the Korea Information Processing Society Conference
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• 2000.10a
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• pp.485-488
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• 2000

인터넷을 통한 웹 기반 교수-학습시스템은 상호작용 중진을 통한 학습자 위주의 교육환경으로 지속적인 변화를 해왔고, 그 결과 학습자는 시간과 공간의 제약에서 벗어나 다양한 교육정보를 접할 수 있는 기회를 가지게 되었다. 본 논문에서는 교사를 대상으로 하는 원격교육 시스템에 한정하여 시스템개발에서 운영에 이르기까지의 모든 과정에 대한 경제적, 교육적 효율성 확보를 목적으로 하였다. 따라서 시스템 개발에서는 주요 모듈의 컴포넌트화를 시도하여 재사용성 증대를 통한 설계 기간 및 비용의 감소를 이끌어내어 개발의 효율성을 높이고, 교육학적 기반으로 구성주의 원리를 적용함으로써 교육의 효율성을 최대로 끌어올릴 수 있도록 설계하였다.

• Proceedings of the Korea Information Processing Society Conference
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• 2014.11a
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• pp.753-756
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• 2014

기존의 웹 지도 서비스는 방문 횟수가 많은 장소를 알기 어렵고, 사용자에게 여행 경로를 추천하는 기능 또한 찾기 어려웠다. 따라서 본 논문에서는 사진 촬영 분포를 기반으로 한 여행 경로 추천 시스템을 제안한다. 사진이 많이 촬영된 곳이 여행객이 많이 방문한 곳이며, 유명한 장소일 것이라고 가정하여 사진 촬영 분포를 기반으로 여행 경로를 추천하고자 한다. 여행 경로를 추천하기 위해 사진 데이터의 위치 값을 수집하고, 사진 데이터의 위치 값을 기반으로 사진 촬영 분포를 시각화하여 지도 위에 나타낸다. 또한, 여행 지역 내 사진이 많이 촬영된 장소를 유명한 장소로 선정하여 이를 경유하는 여행 경로를 추천한다. 사용자는 시스템을 통해 유명한 장소를 쉽게 인식할 수 있고, 편리하게 여행 경로를 계획할 수 있다.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.27 no.4
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• pp.179-186
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• 2004

The purpose of this study is to implement web-based quality cost management system to measure the performance of quality improvement activities in the business firms. Developed WQCMS(Web-based Q-Cost Management System) have ability to collect and analyze quality data generated from various different departments in the inside or outside of the enterprise without any limitations, if end-users are able to access wide area network. It provides the capability to integrate quality information from database and to generate various easy analysis reports to management's needs using built-in analysis tool modules with real-time. The proposed system was developed using Microsoft's .Net technology, ASP.NET and MS-SQL Server 2000. By web-enabling Q-cost management system, the effectiveness of the system management and utilization was realized by easiness of information integration and economical efficiency.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.23 no.54
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• pp.145-153
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• 2000

The importance of reliability information management for an effective product quality management has been increased. Reliability management requires many different kinds of human and technical expertise and cost over the various discipline in the organization. However, it is difficult task to set up appropriate and effective life data analysis because of lacking engineers with reliability knowledge, statistical background and of funds in small and medium-sized enterprise. It is needed to develop a low cost implementation architecture of reliability information supporting system for small and medium-sized enterprise under web environment. In this paper, research efforts are presented to solve such problems of small and medium-sized enterprise under web environment.

• Journal of Radiation Protection and Research
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• v.39 no.1
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• pp.30-37
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• 2014

Recently High-Definition Reference Korean-Man (HDRK-Man) and High-Definition Reference Korean-Woman (HDRK-Woman) were constructed in Korea. The HDRK phantoms were designed to represent respectively reference Korean male and female to calculate effective doses for Korean by performing Monte Carlo dose calculation. However, the Monte Carlo dose calculation requires detailed knowledge on computational human phantoms and Monte Carlo simulation technique which regular researchers in radiation protection dosimetry and practicing health physicists do not have. Recently the UFPE (Federal University of Pernambuco) research group has developed, and opened to public, an online Monte Carlo dose calculation system called CALDOSE_X(www.caldose.org). By using the CALDOSE_X, one can easily perform Monte Carlo dose calculations. However, the CALDOSE_X used caucasian phantoms to calculate organ doses or effective doses which are limited for Korean. The present study developed an online reference Korean dose calculation system which can be used to calculate effective doses for Korean.

• Journal of Life Science
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• v.20 no.3
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• pp.411-415
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• 2010

Anisakis simplex is one of the parasitic nematodes, and has a complex life cycle in crustaceans, fish, squid or whale. When people eat under-processed or raw fish, it causes anisakidosis and also plays a critical role in inducing serious allergic reactions in humans. However, no web-based database on A. simplex at the level of DNA or protein has been so far reported. In this context, we constructed a web-based database for Anisakis research. To build up the web-based database for Anisakis research, we proceeded with the following measures: First, sequences of order Ascaridida were downloaded and translated into the multifasta format which was stored as database for stand-alone BLAST. Second, all of the nucleotide and EST sequences were clustered and assembled. And EST sequences were translated into amino acid sequences for Nuclear Localization Signal prediction. In addition, we added the vector, E. coli, and repeat sequences into the database to confirm a potential contamination. The web-based database gave us several advantages. Only data that agrees with the nucleotide sequences directly related with the order Ascaridida can be found and retrieved when searching BLAST. It is also very convenient to confirm contamination when making the cDNA or genomic library from Anisakis. Furthermore, BLAST results on the Anisakis sequence information can be quickly accessed. Taken together, the Web-based database on A. simplex will be valuable in developing species specific PCR markers and in studying SNP in A. simplex-related researches in the future.