• 한국정밀공학회:학술대회논문집
• /
• 한국정밀공학회 2004년도 추계학술대회 논문집
• /
• pp.277-280
• /
• 2004

In recent die industry, web-based production control system is applied widely because of the improvement of IT technology. In result, many researches are published about remote monitoring at a long distance. The target of this study is to develop Die Discrimination System using web-based vision, and CAD API when client discriminates die in process at a long distance. Special feature of this system is to use 2D vision image and to match with DB. We can get discrimination result enough to want with short time and a little low precision in web-monitoring by development of this system.

• 한국전자통신학회논문지
• /
• 제8권10호
• /
• pp.1523-1528
• /
• 2013

본 연구는 장애인차별금지법에서 명시하고 있는 정보접근권, 그 중에서도 가장 핵심을 이루고 있는 웹접근성이, 시각장애인이 안마사 외에도 직업적 다양성을 개진해 나가는데 있어서 어떤 함의를 제시해 주는지에 대해 비판적으로 검토하였다. 이를 통해 직업적 다양성을 확보할 수 있는 기초기제로서의 웹접근성 향상을 위한 입법상의 보완점을 제언하였다.

• 대한전자공학회:학술대회논문집
• /
• 대한전자공학회 1998년도 추계종합학술대회 논문집
• /
• pp.1255-1258
• /
• 1998

Hidden Markov Model (HMM) is the most widely used method in speech recognition. In general, HMM parameters are trained to have maximum likelihood (ML) for training data. This method doesn't take account of discrimination to other words. To complement this problem, this paper proposes a word verification method by re-recognition of the recognized word and its similar word using the discriminative function between two words. The similar word is selected by calculating the probability of other words to each HMM. The recognizer haveing discrimination to each word is realized using the weighting to each state and the weighting is calculated by genetic algorithm.

• 한국정보통신학회:학술대회논문집
• /
• 한국해양정보통신학회 2009년도 추계학술대회
• /
• pp.149-152
• /
• 2009

본 논문에서는 오차역전파 알고리즘을 사용한 3층 구조의 퍼셉트론형 신경회로망으로 네트워크의 학습을 실시하여, N비트의 패리티판별에 필요한 최소의 중간유닛수의 해석에 관한 연구이다. 따라서 본 논문은 제안한 퍼셉트론형 신경회로망의 중간 유닛의 수를 변화시켜 N 비트의 패리티 판별 실험을 실시하였다. 본 시스템은 패리티 판별의 실험을 통하여 N 비트 패리티 판별이 가능하다는 것을 실험으로 확인한다.

• 전자공학회논문지A
• /
• 제31A권5호
• /
• pp.85-93
• /
• 1994

We have studied the effect of channel and/or spacing chirpings on the near field and near field intensity patterns, modal gains and radiation angles of 6 supermodes in the index-guided laser arrays with 6 channels, on the basis of the coupled mode theory. The spacings between channels can be indenpendent parameters for control of the radiation angle. It is found that an asymmetrically v channel-chirped array has both a smaller radiation angle and better supermode discrimination characteristics than a uniform array. Comparing two approaches for enhancing modal stability in point of supermode discrimination characteristics, approach I which increases the coupling cofficient between the outer-most waveguides at each end of an otherwise uniform array, has superior discrimination characteristics to the approach II which increases the propagation constant for the end elements with the same coupling between neighbor elements. Approach III which has a narrower spacing between the outer-most waveguides at one end and a wider channel width of the outer-most waveguide at another end, gets a narrower radiation angle than the approach I and good supermode discrimination characteristics by applying optimized gain profiles.

• 한국IT서비스학회지
• /
• 제6권2호
• /
• pp.19-33
• /
• 2007

The current advance of IT and the e-commerce triggers the wide practice of dynamic pricing in all industries although the price discrimination has been very cautiously applied in the limited areas in the past. The price discrimination which offers different prices for each customer depending on their preference and buying behaviors has recently gained attention as it could provide superior benefits to sellers. The wide adoption of price discrimination, on the other hand, is reported to face buyer resistances and complaints. Our limited understanding on the perception of price fairness, which we think is key concept in the price discrimination on the Internet-enabled transactions, motives us to investigate factors that affect the perception of price fairness. This study focuses on illusion of control and lateral customer relationship to investigate their effects on price fairness in online auction and group purchase context. By conducting laboratory experiments, our study demonstrates that customers' perception on illusion of control in price determination and advantageous lateral customer relationship significantly affect price fairness perception in both online auction and group purchase environment. The findings are expected to provide researchers and managers with useful insights to develop better pricing strategies and design effective dynamic pricing mechanisms.

• 한국생산제조학회지
• /
• 제21권1호
• /
• pp.15-20
• /
• 2012

The authenticity of bank note is threatened by increasing a counterfeit note with development of the information industry, recently. The importance of counterfeit discrimination is stressed, but there is a limits to popularization. Because usually, the existing counterfeit discriminator uses invisible ray zone like UV, IR, etc. The purpose of this paper is the construction of counterfeit discrimination system for \50,000 won bills. This system is used optical fiber sensor with excellent confidence as well as easy way of using in wave length of a visible ray zone. The light was altered by lightening optical fiber sensor to particular part of bank notes in order displacing response of optical fiber sensor. The experiment was processed with data of 100 bank notes on manufacture optical fiber, probe, jig. As a result, the discrimination conuterfeit was verified when the experiment was processing with hologram or CSI on the bank notes with three kinds of color printer.

• Communications for Statistical Applications and Methods
• /
• 제19권6호
• /
• pp.837-847
• /
• 2012

Inverse Gaussian distribution is widely used in applications to analyze and model right-skewed data. To assess the appropriateness of the distribution prior to data analysis, Mudholkar and Tian (2002) proposed an entropy-based test of fit. The test is based on the entropy power fraction(EPF) index suggested by Gokhale (1983). The simulation results report that the power of the entropy-based test is superior compared to other goodness-of-fit tests; however, this observation is based on the small-scale simulation results on the standard exponential, Weibull W(1; 2) and lognormal LN(0:5; 1) distributions. A large-scale simulation should be performed against various alternative distributions to evaluate the power of the entropy-based test; however, the use of a theoretical method is more effective to investigate the powers. In this paper, utilizing the information discrimination(ID) index defined by Ehsan et al. (1995) as a mathematical tool, we scrutinize the power of the entropy-based test. The selected alternative distributions are the gamma, Weibull and lognormal distributions, which are widely used in data analysis as an alternative to inverse Gaussian distribution. The study results are provided and an illustrative example is analyzed.

• 한국전자거래학회지
• /
• 제25권4호
• /
• pp.1-14
• /
• 2020

국내의 IT기업들은 개인정보보호에 관한 국내법의 규제와 집행이 엄격히 적용되는 반면, 해외 기업들에게는 여러 이유로 법의 적용과 집행이 동등하게 이루어지지 못하는 상황이다. 이에 따라 국내기업들은 해외기업에 비해 경쟁력이 약하여 규제의 역차별 상황에 놓여 있다. 이에 본 글에서는 개인정보보호법제상 규제항목을 5가지로 유형화하고 분석하였다. 또한 국내에 서비스를 제공하는 대표적 사이트(네이버(Naver), 다음(Daum), 구글(Google), 페이스북(Facebook))이 제시하는 개인정보처리방침(privacy policy)을 비교분석하고, 위의 규제항목별로 의무사항에 부합하는지 검토한다. 그리고 역차별 해소를 위한 종합적 법제 개선 방안을 3가지 측면으로 제안한다.

• 지능정보연구
• /
• 제9권1호
• /
• pp.125-137
• /
• 2003

동양 문화권에서는 각종 계약과 서류 결재 등을 위하여 서명대신에 도장이 오랫동안 사용되어 왔으며 아직까지도 보편적인 인증 수단으로 사용되고 있다. 지문과 달리, 도장 영상은 유사한 패턴을 갖지 않고 도장이 찍히는 압력등 입력 상태에 따라서 선명도가 크게 달라진다. 본 연구에서는 입력 장치로부터 얻은 한글 또는 한자 도장 영상을 스트레칭, 이진화 및 잡음처리를 거쳐 판별하는 시스템을 개발하였다. 이 시스템을 가장 보편적으로 사용되는 원형모양의 50개의 도장 영상 (20개 한글 도장, 20개 한자 도장, 10개 유사 도장)에 대하여 실험한 결과, 46개의 도장 영상을 성공적으로 인식하여 비교적 높은 판별도 (92%)를 보였다. 한글과 한자 도장 사이의 차이는 거의 없었으며, 도장을 찍을 때의 각도 차이나 압력 차이가 판별도를 결정하는 중요한 요인으로 작용함을 알 수 있다. 인식할 수 있는 도장 영상의 모양을 원형뿐 아니라 타원과 사각형으로 확장하고 판별도를 좀더 향상하면, 현재 육안으로 확인하는 도장 영상 인식을 자동화하는데 실제로 유용하게 사용될 수 있을 것이다.