• 대한수학회지
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• 제50권3호
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• pp.641-693
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• 2013

We show that the optimistic limits of the colored Jones polynomials of the hyperbolic knots coincide with the optimistic limits of the Kashaev invariants modulo $4{\pi}^2$.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2007년도 춘계학술대회 논문집
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• pp.287-288
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• 2007

• 산업경영시스템학회지
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• 제43권4호
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• pp.229-235
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• 2020

Investors aim to maximize the return rate for their own investment, utilizing various information as possible as they can access. However those investors, especially individual investors, have limitations of interpretation of the domain-specific information or even the acquisition of the information itself. Thus, individual investors tend to make decision affectively and frequently, which may cause a loss in returns. This study aims to analyze analysts' target price and to suggest the strategy that could maximize individual's return rate. Most previous literature revealed that the optimistic bias exists in the analysts' target price and it is also confirmed in this study. In this context, this study suggests the upper limit of target rate of returns and the optimal value named 'alpha(α)' which performs the adjustment of proposed target rate to maximize excess earning returns eventually. To achieve this goal, this study developed an optimization problem using linear programming. Specifically, when the analysts' proposed target rate exceeds 30%, it could be adjusted to the extent of 59% of its own target rate. As apply this strategy, the investors could achieve 1.2% of excess earning rate on average. The result of this study has significance in that the individual investors could utilize analysts' target price practically.

• 복식
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• 제50권4호
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• pp.181-195
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• 2000

This study was conducted from Sep., 1999. to Nov., 1999. It researched approximately 60 specialized manufacturers who had homepages on the Internet. Of the 60 manufacturers, 20 of them were chosen for the study all of whom had relatively were made homepages that were geared towards sales. 1. Daily Hanboks on the homepages were put in an electronic catalog. They were photographed and well described. Each picture could be enlarged when needed. 2. The Hanbok's were made for men, women and children. There were every couple's Hanboks. The Hanboks used natural material, mixed spinning and chemical textile, which was easily kept and washed. It was intended, as clothes for everyday wear Silk was used for formal clothes. 3. The prices ranged from low-middle to high clothing for everyday life is reasonable and street wear and formal dresses are priced high. The color of the dresses are not vibrant, but natural and light. As Hanboks become more in demand, there will be more choices available. 4. As matter of the sizes shows weakness. In general they use the western size system. The purpose of this study is to show the direction that Hanbok manufacturers may take for the internet sales and for being more active to promote the spread of the dress. This research came to the fellowing conclusion. Even though Hanbok manufacturers operate homepages. it seems that they are not well used. However, many internet shopping malls have been opened and they have put Daily Hanboks into one of their sales categories. The internet malls are getting more active and are expanding more. Therefore the market value of the Hanboks in the future look optimistic. If smaller sized manufacturers of Daily Hanbok's establish cooperative network that have no time and space limit, they can use the strong power of the market as the market development for Daily Hanboks is endless.

• 철학연구
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• 제147권
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• pp.261-281
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• 2018

이 논문은 인공지능으로 인한 인류의 위험에 대한 최근의 논의를 다룰 것이다. 인공지능을 협의의 인공지능(ANI), 인공 일반지능(AGI), 인공 초지능(ASI)으로 구분하여 살펴볼 것이다. 먼저, ANI 즉 약한 인공지능 시스템이 불러올 수 있는 위험에 대해 살펴본다. 인간이 효율성의 극대화를 위해 자율형 인공지능에게 작업의 권한을 상당 부분 이양하고 인간의 개입 없이 판단하고 행동하게 함으로써 발생할 수 있는 위험을 예상해 볼 수 있다. 아무리 정교한 시스템이라고 하더라도 인간이 만든 인공지능 시스템은 불완전하기 마련이며, 바이러스 감염이나 버그 등으로 오류가 발생할 수도 있다. 그래서 인공지능에게 맡기는 일에 한계가 있어야 한다고 본다. 대표적으로 살상용 자율무기는 허용되지 않아야 한다고 생각한다. 강한 인공지능 연구자들은 인공 일반지능과 초지능의 출현을 낙관한다. 초지능은 모든 면에서 인간의 능력을 월등하게 능가하는 인공지능 시스템이므로 인간의 이익에 반하는 행동을 하거나 인간에게 해를 입힐 수도 있다. 그래서 초지능을 통제하는 문제가 심각하게 거론되고 있다. 이 논문에서는 초지능을 통제할 수 있을지를 현재까지 제안된 통제 방안들을 중심으로 개략적으로 살펴보았다. 만일 초지능이 출현한다면, 인간이 초지능을 완벽하게 통제할 방안이 현재로서는 없다고 판단된다. 하지만 초지능의 출현이 허구적인 가정일 수도 있다. 이럴 경우에도 통제 문제에 대한 연구는 인공지능 연구의 방향을 설정하는 데 있어 실용적인 가치가 있다.