• Proceedings of the Korean Information Science Society Conference
• /
• 2006.06d
• /
• pp.286-288
• /
• 2006

기존 유선환경에서의 개인화방법은 정보 전송량에 따른 사용요금을 고려할 때 무선환경에서 적용하기에는 부적합한 방법이다. 무선환경을 사용하는 모바일 기기 사용자는 유선환경보다 사용자 프로파일 정보를 쉽게 구할 수 있는 장점이 있으며, 또한 모바일 기기는 혼자 사용하는 특징이 있는 장점을 활용할 수 있는 방안이 필요하다. 본 논문에서는 모바일 기기 사용자를 위한 개인화 방법으로 협업 필터링 방법과 규칙 필터링 방법을 혼합한 방법을 제안한다. 사용자 프로파일 정보는 협업 필터링 방법을 통한 초기 사용자 모델링을 수행하고, 규칙 필터링을 통해 연속 사용자 모델링을 수행하는 모바일 환경을 위한 혼합 필터링 방법이다. 본 논문에서 제안한 서비스 기법은 모바일 환경에서의 효율성과 확장성을 개선 해주며, 또한 개인화된 서비스는 무선환경의 제한된 네트워크 대역폭 사용 한계를 효과적으로 개선해 줄 수 있다.

• 한국컴퓨터산업교육학회:학술대회논문집
• /
• 2003.11a
• /
• pp.99-102
• /
• 2003

Data acquisition of biomedical signal is important that can convert health of human body to measurable datas. In this paper, we developed system that can send multiple ECG data, ECG signal in biomedical signals, using Bluetooth wireless transmission. Developed system has several features, total gain of 1000, filtering data for noise reduction in hardware / software parts, portable to carry cause it has small size and battery operation. And system was designed which can measures data in several OS(Windows 2000, Windows CE).

• Proceedings of the KIEE Conference
• /
• 1998.07b
• /
• pp.681-683
• /
• 1998

Fuzzy Inference System is to trans late and be concrete with human expert in to mathematical equation. It is easy to be applied for Nonlinear System and the know ledge can be applied at that. With using the rule according to the Knowledge, when it is realized simulations must be required repeatedly and small vibration is generated in steady state, too. In this paper, we applied the system to the methodology of optimization with self-learn ing by us ing ANFIS(Adaptive Network-based Fuzzy Inference System) which makes use of back-propagation and least square method at a first order Sugeno Fuzzy System. In order to show the effect of Algorithm, we demonstrated it by us ing Rotary Inverted Pendulum.

• Proceedings of the KIEE Conference
• /
• 1997.07b
• /
• pp.383-385
• /
• 1997

Back-propagation is one of the efficient algorithms used to nonlinear optimizations or controls. In spite of its structual simplicity and learning ability, learning time is very long or bad case converge local minimum on complicate input patterns. In order to improve these matters varing learning rate and momentums were proposed. In this paper, to improve its performance fuzzy is adjusted in parameters, learning rate and momentums. Parameters are adjusted by errors and change of errors adaptively. In order to evaluate proposed method simulated with MATLAB on inverted pendulum.

• Computational Structural Engineering : An International Journal
• /
• v.1 no.2
• /
• pp.97-106
• /
• 2001

Safety and serviceability of a planar steel frame are assessed. Attention is turned to the individual main steps in the assessment procedure, i.e., to the definition of loads, selection of transformation model, determination of the response of the structure to the loading, and to the definition of the limiting values (considering safely and serviceability of the structure). The potential of the method using direct Monte Carlo technique as a powerful tool is emphasized.

• The Journal of Society for e-Business Studies
• /
• v.1 no.2
• /
• pp.93-116
• /
• 1996

Nowadays, there are many efforts to integrate CAD/CAM and other systems. The key of integration is engineering database implementation through the product data definition. In this paper, we suggest the product data definition and their properties for electronic consumer product throughout the requirement analysis for engineering database. Electronic consumer products include electric/electronic parts. as well as mechanical part which mainly compose of machinery. The paper is composed of three parts: the first is analysis about engineering data base. the second is understanding of product data structure and properties. and the last is modeling of product data including static and dynamic characteristics.

• 제어로봇시스템학회:학술대회논문집
• /
• 2000.10a
• /
• pp.316-316
• /
• 2000

SPM dynamic model was developed by using Bland & Ford formulas considered elastic zone in roll gap, gauge meter equation, tension equation, speed equation and actuator models. And SPM controllers of the field were done model ing. It was shown the efficiency of constant tension, rol1ing force and elongation controllers by the simulation program and it was recommended the proper gain to the controllers of the field.

• Proceedings of the KIEE Conference
• /
• 1996.11a
• /
• pp.160-162
• /
• 1996

This paper is one-phase fault current analysis of 154kV underground transmission power cable. Its purpose is to gain knowleges of connect ing the CCPU and to show the merits as its method. There are many methods of connect ing CCPU, i.e, a conventional method, CIGRE method, interconnect ion between sheaths with grounding, and interconnect ion between sheaths without grounding. These methods will be compared in this paper.

• Proceedings of the Korea Multimedia Society Conference
• /
• 2003.05b
• /
• pp.532-535
• /
• 2003

아웃바운드(Outbound) 형 콜 센터는 서비스 지향의 인바운드(Inbound) 형 콜 센터와는 달리 전화를 거는 주체가 고객에게 접촉하고자 하는 목적을 뚜렷하게 가진 상태에서 제품 또는 서비스, 정보제공 등을 전화나 기타 커뮤니케이션 채널을 통해 전달하는 업무를 담담한다. 본 논문에서는 아웃바운드 형 콜 센터 시스템을 예측 다이얼링(Predictive Dial Ing) 방식에 기반하여 개선된 콜 전략을 제안한다 개선된 콜 전략은 콜 센터 업무의 중심 역할인 콜링 리스트(Call ing List)를 데이터 추출 모듈을 사용하여 테이블로 구성한 뒤, 시간 활용을 통한 효율적 대응과 다양한 고객들의 정보를 바탕으로 고객과의 접촉확률을 증가시킬 수 있다.

• Proceedings of the Earthquake Engineering Society of Korea Conference
• /
• 2006.03a
• /
• pp.487-494
• /
• 2006

The ultimate capacities of a rubber bearing are defined by compressive stress, shear strain, and stabilized roster ing force. The experiments were conducted with parameters of shesr elasticity(G) and first shape factor(S1), second shape factor(S2) for rubber bearing. Considering with test results, the ultimate capacities were verified, and furthermore the influence of those parameters were clarified. Using test results stable deformation of rubber bearings for designing was proposed.