• 한국지능시스템학회:학술대회논문집
• /
• 한국퍼지및지능시스템학회 2005년도 춘계학술대회 학술발표 논문집 제15권 제1호
• /
• pp.419-423
• /
• 2005

This paper is a research on feature extraction and comparison method of dynamic (on-line) signature verification. We suggest desirable feature information and modified DTW(Dynamic Time Warping) and describe the performance results of our enhanced dynamic signature verification system.

• Coupled systems mechanics
• /
• 제4권1호
• /
• pp.67-98
• /
• 2015

Numerical prediction of dynamic behavior of fully coupled saturated porous media is of great importance in many engineering problems. Specifically, static and dynamic response of soils - porous media with pores filled with fluid, such as air, water, etc. - can only be modeled properly using fully coupled approaches. Modeling and simulation of static and dynamic behavior of soils require significant Verification and Validation (V&V) procedures in order to build credibility and increase confidence in numerical results. By definition, Verification is essentially a mathematics issue and it provides evidence that the model is solved correctly, while Validation, being a physics issue, provides evidence that the right model is solved. This paper focuses on Verification procedure for fully coupled modeling and simulation of porous media. Therefore, a complete Solution Verification suite has been developed consisting of analytical solutions for both static and dynamic problems of porous media, in time domain. Verification for fully coupled modeling and simulation of porous media has been performed through comparison of the numerical solutions with the analytical ones. Modeling and simulation is based on the so called, u-p-U formulation. Of particular interest are numerical dispersion effects which determine the level of numerical accuracy. These effects are investigated in detail, in an effort to suggest a compromise between numerical error and computational cost.

• International Journal of Fuzzy Logic and Intelligent Systems
• /
• 제4권3호
• /
• pp.271-276
• /
• 2004

This paper is a research on the dynamic signature verification of error rate which are false rejection rate and false acceptance rate, the size of signature verification engine, the size of the characteristic vectors of a signature, the ability to distinguish similar signatures, the processing speed and so on. Also, we present our efficient user interface and performance results.

• 한국정보통신학회논문지
• /
• 제11권9호
• /
• pp.1781-1785
• /
• 2007

본 논문에서는 스마트폰에서 사용 가능한 동적서명 인증기술의 사용자 인터페이스와 알고리즘을 제안하고, 제안된 시스템의 성능을 기술하였다. 개인 서명의 모양, 쓰는 속도, 기울기, 획수와 획순서 등의 정보를 활용함으로써 인증 여부를 결정하게 되며, 컴퓨터와 무선인터 넷이 발달하고 관련 산업이 급성장함에 따라서 폭 넓은 산업 분야에 활용될 것으로 기대된다.

• 한국시뮬레이션학회논문지
• /
• 제28권1호
• /
• pp.41-47
• /
• 2019

국방 시뮬레이션은 여러 무기체계를 실험하고 그 효용성을 평가하기 위해 활발히 사용된다. AddSIM 환경의 경우 국방 시뮬레이션에서 다루는 무기체계들을 보다 통합적인 관점에서 지원하기 위해 고안된 시뮬레이션 프레임워크로 재사용성과 확장성을 고려하여 설계되었다. AddSIM에서 사용되는 모델의 경우 기본 모델 구조에 대한 정보와 실제 무기 체계의 설계를 위해 사용되는 사용자 코드 영역에서의 검증이 통합적이며 정확한 시뮬레이션을 위해 필요하다. 따라서 본 논문에서는 AddSIM에서 사용되는 모델들에 대한 완전성을 위해 사용된 동적 검증 방법에 대해 설명한다. 사용자 코드 동적 검증 방법에 대해서는 명세 기법과 검증을 위한 알고리즘에 대해 설명한다. 또한, 검증 명세 기법 및 알고리즘을 바탕으로 구현된 동적 검증기 프로토타입에 대해 소개하며, 사례 연구에서는 AddSIM 환경에서 구현된 시뮬레이션 예제를 바탕으로 수행한 검증 결과를 분석한다.

• Journal of information and communication convergence engineering
• /
• 제8권2호
• /
• pp.140-144
• /
• 2010

This paper is a research on an evaluating method for the dynamic signature verification system. It is described about various factors such as error rate, the size of signature verification engine, the size of the characteristic vectors of a signature, the ability to distinguish similar signatures, the processing speed of signature verification and so on. This study identifies factors to consider in evaluating signature verification systems comprehensively and objectively without an officially approved signature database, examines the meaning of each of the factors, and proposes criteria for evaluating and analyzing the factors.

• 한국컴퓨터정보학회논문지
• /
• 제24권1호
• /
• pp.145-149
• /
• 2019

Various supplementary authentication methods are used to supplement user authentication and authorization provided by existing password verification online1. In recent years, authentication and authorization methods using user attribute information have been studied and utilized in various services. User attribute information can be divided into static information and dynamic information. The existing methods focus on research to identify users using dynamic information or to generate challenge questions for user reauthentication. Static information such as a user's home address, school, company, etc. is associated with dynamic information such as location information. We propose a method to verify user attribute information by using the association between two attribute information. For this purpose, the static information of the user is verified by using the user's location record which is dynamic information. The experiment of this paper collects the dynamic information of the actual user and extracts the static information to verify the user attributes. And we implemented the user attribute information authentication system using the proposal verification method and evaluated the utility based on applicability, convenience, and security.

• 대한전자공학회:학술대회논문집
• /
• 대한전자공학회 2003년도 하계종합학술대회 논문집 Ⅲ
• /
• pp.1537-1540
• /
• 2003

Dynamic signature verification technology is to verify the signer by calculating his writing manner, speed, angle, and the number of strokes, order, down/up/movement of pen when the signer input his signature with an electronic pen for his authentication In this paper, we will study an abjective basis for performance and analysis of the dynamic signature verification system.

• 한국전자거래학회:학술대회논문집
• /
• 한국전자거래학회 2005년도 e-Biz World Conference 2005
• /
• pp.299-304
• /
• 2005

This paper is a research on the dynamic signature verification of error rate which are false rejection rate and false acceptance rate, the size of signature verification engine, the size of the characteristic vectors of a signature, the ability to distinguish similar signatures, and so on. We suggest feature extraction and comparison method of the signature verification. Also, we have implemented our system with Java technology for more efficient user interfaces and various OS Platforms.

• 한국전자거래학회지
• /
• 제10권3호
• /
• pp.49-65
• /
• 2005

본 논문은 동적(온라인) 서명인증 기술에 관한 것으로 서명의 특징 벡터, 유사 서명에 대한 변별력, 오류율 등에 대해서 살펴보고, 고성능 서명 인증시스템을 위한 특징 추출과 매칭 방법을 제안하고, 보다 효율적인 사용자 인터페이스를 설계하였고, 다양한 OS플랫폼 지원을 위하여 Java 기술을 이용한 웹 인증 서버를 구현하였다.