• Journal of Digital Convergence
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• v.16 no.12
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• pp.217-229
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• 2018

This paper aims at applying the data mining such as decision tree, neural network, and logistic regression to an unsold apartment complex in Wirye new town and developing the model forecasting the result of initial sale contract by house unit. Raw data are divided into training data and test data. The order of predictability in training data is neural network, decision tree, and logistic regression. On the contrary, the results of test data show that logistic regression is the best model. This means that logistic regression has more data adaptability than neural network which is developed as the model optimized for training data. Determinants of initial sale are the location of floor, direction, the location of unit, the proximity of electricity and generator room, subscriber's residential region and the type of subscription. This suggests that using two models together is more effective in exploring determinants of initial sales. This paper contributes to the development of convergence field by expanding the scope of data mining.

• Journal of the Korean housing association
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• v.6 no.1
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• pp.77-88
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• 1995

The purpose of this research is to find out the differences in family chareteristics and housing plans between public supporting households and general rental households in the public rental housing. One hundred eighty nine residents in chonju were analyzed. There were some differences between the two groups in family characteristics such as family size.age.a job.sex of the household head existence of mate.etc. The most desired facility was a public health center. The desiring macro environment and plan to move were similar between two groups. There were differences in the opinions on housing policies for the public rental housing between two groups.

• Proceedings of the Korea Information Processing Society Conference
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• 2019.10a
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• pp.798-801
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• 2019

역사적으로 생명 보험은 상호부조의 형태로 갑작스럽게 어려운 상황이 발생하여도 경제적 어려움으로부터 가정을 지키는 역할을 해 왔다. 이는 평상 시에 만약의 경우를 대비하여 일정 비용을 지불함으로써 한 가정의 보장을 잘 준비하였기 때문이다. 하지만 한 가정의 경제적 상황은 지속적으로 변하기 때문에 시간이 지남에 따라 청약 당시의 보장 상태가 적절히 유지되고 있음을 확신할 수 없게 된다. 따라서 본 연구에서는 가처분 소득 추정 모델 개발을 통해 기존에 생명보험에 가입한 고객의 가처분 소득을 추정함으로써 고객에게 적절한 보장 강화의 기회를 제공하도록 한다.

• The Journal of the Korea Contents Association
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• v.9 no.12
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• pp.787-796
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• 2009

The electronic commerce keeps going through a tremendous growth since the latter half of 1990's. But the consumer damages are being increased from characteristics such as non-confrontation, anonymity, internationality, unilaterality and possibility of temptation. Accordingly, this thesis has derived legal and systematic improvements for consumer protection in general as follows. First of all, it is necessary to extend the period to exercise the subscription withdrawal rights according to electronic commerce consumer protection law. Second, the electronic commerce has high possibility of causing errors by consumers because it is performed by non-confrontation and the accurate information must be provided to prevent errors in advance because it is not easy for consumers to prove their own errors. Third, a certification mark system on electronic agreement has to be adopted. Fourth, the legal, systematic and technological measures have to be adopted to prevent from having a sense of fear toward leaking or using personal information through a safe personal information management. Fifth, a strict supervision on internet trust mark is required. Finally, because the intervention or interference by a third party may take place through a hacking on messages or documents sent according to procedure in terms of online settlement, it is necessary to raise security on the system through a precise authentication between concerned parties.

• Journal of Digital Convergence
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• v.8 no.2
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• pp.147-160
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• 2010

Internet shopping mall business has taken its place as a major form of e-commerce and is evolving constantly. At the same time, disputes of various kinds are also arising in proportion to the evolution. A typical example is when a consumer purchased a product from an internet shopping mall and the seller wants to cancel or withdraw the sales contract saying that he miswrote the price or other important information when posting the product on the internet. It's about the error on the seller's part. Civil Law Chapter 109, legal principles on errors, appears to assume the case of natural declaration of intention. It was observed that legal principles on errors defined by the Civil Law are also applied in internet shopping malls, where declaration of intention is made electronically. In transactions involving internet shopping malls, where the seller's indication and advertisement constitutes an inducement to offer, the seller may cancel a contract concluded by the consumer's offer and the seller's acceptance if the seller finds errors on his part, and adequacy of the cancellation should be judged depending on specific cases. That is, the judgment of the important ground that comprises prerequisites for cancellation and presence of negligence may depend on how much difference there is between the normal price and the posted price on a specific case. Also, considering the cases where negligence was not perceived on the seller's miswriting of the price, the seller may cancel the transaction in a similar situation.

• International Commerce and Information Review
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• v.1 no.2
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• pp.183-204
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• 1999

현재 세계적으로 전자적 정보매체중 인터넷의 여러 기술적 방편인 Web, E-Mail, usenet 등을 통한 인터넷 무역이 보편화되어가고 있는 실정이다. 기존의 부가가치통신망(VAN)을 이용한 EDI에서 보다 보편적이며 접근이 용이하면서 개방적인 인터넷 EDI로 대체되고 있다. 인터넷을 이용한 무역계약의 체결은 기존 방식에 비해 신속성, 경제성, 편리성에 있어 뛰어난 장점을 지니고 있어 조만간 많은 이용이 뒤따를 것으로 예견되나 현재 준거법, 문서의 법적효력, 계약의 유효성, 청약의 유인, 계약성립시점 둥의 법적 문제가 해결되어야 할 것으로 여겨진다. 특히 계약성립시점에 관하여 인터넷을 통한 승낙의 의사전달이 대화자간인지, 격지자간인지의 여부가 불투명한 실정이다. 대화자간 법리와 격지자간법리의 구분기준은 발신과 도달의 시간적 동시성을 기준으로 분석하는 것이 보다 합리적일 것으로 여겨진다. 본 연구는 현재 인터넷을 이용한 의사전달 중 가장 많은 이용이 예상되는 E-Mail을 중심으로 기타 인터넷기술을 이용한 의사전달의 효력발생시점에 관한 법리를 분석하고 만일 대화자간의 법리가 적용된다면 문제시될 도달시점에 대해서 논의하는데 그 목적이 있다. 결론적으로 본 연구를 통해 살펴보았을 때, 인터넷을 통한 승낙의 의사전달은 대화자간의 법리가 적용되어 영 미법이나 한국, 일본법이 준거법으로 채택된다 하더라도 도달 주의가 지지되어야 하며, 이 경우 도달시점은 E-Mail의 경우 수신측 사용자 컴퓨터가 아닌 수신자가 지정한 수신서버컴퓨터에 기록되는 시점이 되어야 한다는 견해이다.

• The Journal of Information Technology
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• v.1 no.2
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• pp.103-118
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• 1998

The contract for the International Sale of Goods is a contract of sale of goods between parties of business in different countries beyond tariff line. In principle, the formation of contracts for the international sale of goods is conventional made through offer and acceptance. Though this principle outwatdly looks simple, They turn out complicated problems as to what is offer or acceptance, especially as to the exact time that contracts go into effect. For that reason, the parties who conclude an international Sales contracts effectively are must understand perfectly in the legal commercial aspects offer or acceptance that become basic elements in the formation contracts for the International Sale of Goods. So, In the thesis I tried to explain principles on the Effective Formation in Contract for the International Sale of Goods based on Revision UCC.

• International Commerce and Information Review
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• v.10 no.3
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• pp.75-99
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• 2008

In the commercial transaction sellers use various sales strategies to increase profits, and this kind of sales strategies often causes damage to customers, it, moreover, is true that these examples happen in the electronic commercial market much more than in traditional one because of the characteristics if the electronic commerce. That's why people transact one another without face-to-face meeting in the electronic commerce market, so people one likely to fall for a trick to cheat and deceive. It's no doubt that the frequency of crime is higher than in face-to-face market. For that reason Cooling Off System, Consumer Compensation Insurance, Mutual Aid Association and Billing Payment Deposit System are in force the law related electronic commerce to protect customers' rights. In this paper it will be discussed about the periods of Cooling Off System and a received commodity notice of the Billing Payment Deposit System. Regarding these periods seven days for Cooling Off period and three days for a received commodity notice period are stipulated under the law of related electronic commerce to protect customers' rights, But each period has to be differentiated depending on each goods for this period to be reasonable and proper. Therefore in this study it will be focused on these facts and each period will be classified by the goods' purpose of purchase and quality.

• THE INTERNATIONAL COMMERCE & LAW REVIEW
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• v.61
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• pp.57-90
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• 2014

International sales contract, in general, is concluded through the exchange of written forms which contain each of their own business terms and conditions among the contractual parties. To illustrate, A sends the other an offer on A's general terms and conditions of business and B accepts the offer subject to the use of B's own general terms and conditions. Where the two sets of terms and conditions do not coincide, the question may arise whether the parties(A and B) have contracted and, if so, whose general terms and conditions apply. This situation is referred to as "the battle of forms". This article would try to make, in terms of the battle of forms, a comparison between the classical perspectives and opinions which are based on the principle of the English Common Law and the modernistic perspectives and opinions which are applied to the provisions in the UCC, CISG, and PICC. Therefore, the aim of this article is to provide the increase self-consciousness with respect to the battle of forms between the contractual parties that may frequently happen in the international business transactions and will pave the way for further research in the future.

• THE INTERNATIONAL COMMERCE & LAW REVIEW
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• v.38
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• pp.3-45
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• 2008

A motive and aim of enactment of UN Convention on the Use of Electronic Communication in Int'l Contracts is based on need to eliminate legal obstacles that might arise under existing int'l trade law instruments and promote int'l electronic commercial transaction. But when it is used with related articles, 14, 15, 16, 17 for offer under CISG, one of the most successful conventions which produces substantive law for the unification of int'l trade, questions of practical importance, for example possibilities of withdrawal, revocation, rejection of offer, the extent of its criteria arise from therewith. In conclusion, a effective electronic offer has to assure easily access and confirmation of trade terms besides criteria of offer under CISG. An offer can be withdrawal, if electronic message of withdrawal has entered the offeree's server before or at the same time when the offer has reached the offeree but agreement expressly or impliedly, between the parties about type, format, email address is a prerequisited. Implied consent could be presumed through prior conduct or trade usages between the parties under CISG articles 8, 9. The term "have reached" correspond to the time which is able to retrieve the electronic message of withdrawal. But without express or implied agreement between them about electronic communication of type, format, email address, an offer can be withdrawal before or at the same time when it has entered offeree's other e-mail address and confirmed by his retrieval. In case of the revocation, electronic message of the revocation is effective before the offeree's dispatching an acceptance. A prerequisite for the revocation by electronic communication is came as the above mentioned withdrawal except for concept of a time difference for reach. In case of a rejection of offer, when a rejection by electronic communication has entered the offeror's server, an offer is ended. But a prerequisite for the rejection by electronic message is same as the above mentioned withdrawal and revocation.