• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2019년도 추계학술발표대회
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• pp.795-797
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• 2019

In this paper, we propose a method to generate adversarial examples for toxicity detection neural networks. Our dataset is represented by a one-hot vector and we constrain that only one character is allowed to be modified. The location to be changed is founded by the maximum area of input gradient, which represents the most affecting character the model to make decisions. Despite the fact that we have strong constraint compared to the image-based adversarial attack, we have achieved about 49% successful rate.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2000년도 추계종합학술대회
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• pp.360-363
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• 2000

현재 대부분의 전자상거래는 웹 브라우저를 통해 간단한 상품설명만을 제공하고 있는데 냉동수산물과 같이 상품의 신선도나 저장위치, 제고물량 등 다양한 상품정보가 필요한 경우에는 별도의 정보제공 방법이 필요하다. 이에 GIS사용자 인터페이스방식을 도입하여 위치정보를 근간으로 업체와 상품에 대한 다양한 정보를 시각적으로 제공할 수 있는 전자상거래 시스템을 제시한다.

• 한국멀티미디어학회논문지
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• 제19권2호
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• pp.344-351
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• 2016

Recently, mobile application for english vocabulary learning is being developed actively. However, most mobile English vocabulary learning applications did not effectively connected with the technical advantages of mobile learning. Also,the study of mobile english vocabulary learning app are still insufficient. Therefore, this paper development a english vocabulary context-learning Agent that can practice context learning more reasonably using a location-based service, a character recognition technology and augmented reality technology based on smart phones. In order to evaluate the performance of the proposed agent, we have measured the precision and usability. As results of experiments, the precision of learning vocabulary is 89% and 'Match between system and the real world', 'User control and freedom', 'Recognition rather than recall', 'Aesthetic and minimalist design' appeared to be respectively 3.91, 3.80, 3.85, 4.01 in evaluation of usability. It were obtained significant results.

• 한국게임학회 논문지
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• 제6권2호
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• pp.23-32
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• 2006

컴퓨터게임의 서사 개념을 이용하여 장르를 구분하는 틀을 제시하려 하였다. 게임의 서사에 대해서는 아직 논란이 많은 편이기는 하지만, 전통적인 개념으로서 게임 연구에 있어서도 유용하게 사용할 수 있을 것으로 보았다. 본론에서는 서사의 통합체/계열체적 속성과 서사가 게임에서 차지하는 비중이라는 두 축을 이용하여 각 컴퓨터게임의 장르의 위치를 설정하였다. 이에 따르면 게임장르의 서사적 특성을 반영한 위치를 찾을 수 있었다.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2005년도 ICCAS
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• pp.1917-1921
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• 2005

The Bar code, RFID in the standard recognition method for the goods automation of tire manufacture process, sometimes problem occurs with the damage due to a high tension, high fever. So it has problem that needs many instruments to attach it. In this paper, in the letter of tire's surface the Mold ID which has a specific feature it proposed the algorithm for the location detection of acquisition and Mold ID of the image which uses 3 dimension cameras.. It described the method which recognizes the each letter of Mold ID from the location which is detected.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2008년도 추계학술대회A
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• pp.1193-1197
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• 2008

Bridge is Most from stay of Gantry structures part. In compliance with oneself weight of the bridge deflecting, this occurs drops the location precision of the work tool. Also accelerative at the time of gives a serious load to Y axial motors which transfer the bridge damages. The motor with high-speed transfer of location control which is accurate makes disrupt. The malleability of the bridge to maintain consequently and necessary to minimize a weight. This paper the structural FEM interpretations of the stone and the aluminum alloy with the material by which will be used in the bridge and static deflected and a candle precise plane X-Y stage optimal design with character the interpretation result.

• 대한두경부종양학회지
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• 제3권1호
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• pp.79-83
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• 1987

Carotid body tumor is rare tumor in the neck. Among the pathologic conditions affecting paraganglionic tissue. the carotid body is most frequently involved. There are controversies in terms of natural history. biological behaviors, technique of excision, risks of the operation. Carotid angiography is the most valuable diagnostic aid and important for the planning of therapy. Definite treatment of carotid body tumor is surgical excision. Considerable degree of caution and vascular surgical armamentation are required because of its anatomical location and profuse vascularity. Surgical removal of this kind of paraganglioma must be predicated upon several factors such as tumor character. location. symptom, vascularity, and surgeon's ability.

• 정보처리학회논문지B
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• 제10B권4호
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• pp.429-442
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• 2003

본 논문에서는 우편물 자동처리론 위한 우편영상 인식 시스템을 소개한다. 우편영상 인식 시스템은 서장 우편물을 집배원이 배달하는 순서에 따라 자동으로 구분할 수 있도록 우편영상을 입력으로 받아 수신인 주소를 출력하는 인식 시스템을 말한다. 이 시스템은 수신인 주소영역 추출, 문자열 분리, 문자분할, 문자인식, 그리고 주소해석 모듈로 구성되어 있다. 주소영역 추출을 위해서는 우편물 주소 기입 위치에 대한 경험적 지식을 이용하였으며, 문자열 분리와 문자분한을 위해서는 연결요소 분석과 수직런 분석을 이용하였다. 문자인식에는 신경망 기반 인식기를 이용하였으며, 주소해석을 위해서는 동적 프로그래밍 기법을 적용하였다. 각 모듈은 독립적으로 구현되었기 때문에 인식 시스템의 성능 개선을 위한 모듈별 최적화가 용이하다는 장점이 있다. 실험에는 대전 유성우체국의 우편물 구분기를 이용하여 실제 우편물에서 수집한 인쇄 우편영상과 필기 우편영상을 이용하였으며, 비교적 우수한 인식 결과를 얻었다.

• 대한조선학회지
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• 제9권2호
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• pp.43-48
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• 1972

Inertia friction welding, a relatively recent innovation in the art of joining materials, is a forge-welding process that releases kinetic energy stored in the flywheel as frictional heat when two parts are rubbed together under the right conditions. In a comparatively short time, the process has become a reliable method for joining ferrous, and dissimilar metals. The process is based on thrusting one part, attached to a flywheel and rotating at a relatively high speed, against a stationary part. The contacting surfaces, heated to plastic temperatures, are forged together to produce a reliable, high-strength weld. Welds are made with little or no workpiece preparation and without filler metal or fluxes. However, In order to obtain a good weld, the determination of the optimum weld parameters is an important problem. Especially, because the amount of the flywheel mass will be determined according to the initial rotating velocity values at the constant thrust load, the initial rotating velocity is an important factor to affect a weld character of the inertia-welded IN713C-SAE8630, which is used for the wheel-shafts of turbine rotors or turbochargers, exhausting valves, etc. In this paper, the effects of initial rotational velocity on a weld character of inertia-welded IN713C-SAE8630 was studied through considerations of weld parameters determination, micro-structural observations and tensile tests. The results are as the following: 1) As initial rotating velocity was reduced to 267 FPM, cracks and carbide stringers were completely eliminated in the micro-structure of welded zone. 2) As initial rotating velocity was reduced and flywheel mass was increased correspondingly, the maximum welding temperatures were decreased and the plastic working in the weld zone was increased. 3) As initial rotating velocity was progressively decreased and carbides were decreased, the tensile strengths were increased. 4) And also the fracture location moved out of the weld zone and the tensile tests produced, the failures only in the cast superalloy IN713C which do not extend into the weld area. 5) The proper initial rotating velocity could be determined as about 250 thru 350 FPM for the better weld character.

• 교육시설
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• 제11권1호
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• pp.25-37
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• 2004

This study is derived from a problem for the blind, how to recognize the space and how to find their way. Unlike ordinary people, the disabled people are closely related with special constructor environment using the other sense. Especially, to find his/her location, each person depends on the wayfinding ability as acquiring specific and various information,(e.g. recognizing figure by tactile sense, space size by auditory sense, direction by light from a window and regular noise, and existence of switch in a specific place.) Those senses help the person's wayfinding to his/her destination. The procedure of wayfinding are location, position, orientation, navigation, and movement. Consequently, construction for the people above mentioned can offer a design-guideline considering following factors, building arrangement considering regular noise, refurbishment, plan configuration of floor and wall-skin changed, circulation stream that maintains right angle by the regular noise in the building, enforcement location character by the inflow of the light into a crossing.