• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2007.11a
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• pp.531-534
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• 2007

In the current domestic design-build contract, design and construction are separated due to prohibition of outside work. but instead the design-build contract adopts a method of fulfilling each assignment as a joint venture, which makes it difficult for participants to communicate each other and often require changes of design. also, It is difficult to performance efficiency project that they don't want to share useful information related to design and construction. In this study suggests how to maxmize the effiency of the project by proposing a process model connected with an efficient partnering and constructability in a deign development phase of design-build constract.

• Annual Conference of KIPS
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• 2023.11a
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• pp.945-946
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• 2023

4차 산업혁명과 코로나19 영향으로 개발자 수요가 급증하며, 노코드 및 로우코드 플랫폼과 자연어 처리 기반 인공지능이 주목받고 있다. 본 연구는 프로그래밍 접근성 향상을 위한 노코드 플랫폼을 탐구하며, 사용자가 UI를 통해 직관적으로 프로젝트를 구축할 수 있는 설계 방식을 제시한다. 본 연구에서는 웹 크롤링과 자연어 처리 모델 학습에 기반한 아키텍처와 방향성을 제시한다. 사용자는 화면을 구성하고 프레임워크 선택 후 프로젝트를 간단하게 구축할 수 있다. 이 연구는 전문 지식 없이도 소프트웨어 개발에 쉽게 접근할 수 있는 방법론을 제시하며, 접근성과 포용성 강화에 기여한다.

• KIPS Transactions on Software and Data Engineering
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• v.7 no.6
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• pp.205-220
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• 2018

Software defect prediction is helpful for allocating valuable project resources effectively for software quality assurance activities thanks to focusing on the identified fault-prone modules. If historical data collected within a company is sufficient, a Within-Project Defect Prediction (WPDP) can be utilized for accurate fault-prone module prediction. In case a company does not maintain historical data, it may be helpful to build a classifier towards predicting comprehensible fault prediction based on Cross-Project Defect Prediction (CPDP). Since CPDP employs different project data collected from other organization to build a classifier, the main obstacle to build an accurate classifier is that distributions between source and target projects are not similar. To address the problem, because it is crucial to identify effective similarity measure techniques to obtain high performance for CPDP, In this paper, we aim to identify them. We compare various similarity measure techniques. The effectiveness of similarity weights calculated by those similarity measure techniques are evaluated. The results are verified using the statistical significance test and the effect size test. The results show k-Nearest Neighbor (k-NN), LOcal Correlation Integral (LOCI), and Range methods are the top three performers. The experimental results show that predictive performances using the three methods are comparable to those of WPDP.

• Journal of the Korea Institute of Building Construction
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• v.10 no.5
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• pp.45-54
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• 2010

Recently more and more construction projects have become high-rise, complex and intelligent. Accordingly, such projects require an integrated management system for tasks, with a lean approach to construction with work processes for management and productivity. In particular, Construction Information Technology (CIT) fields are concerned with Building Information Modeling (BIM), which represents the process of generating and managing building data during its life cycle. Constructability research has progressed for the project goal which is a cost-time-quality of optimization by integrated construction knowledge and experience. However, the current constructability process has not been performed efficiently, as the existing 2D drawings and papers lack consistent and accurate information, it is difficult to share the contents of work, and the use of information is inefficient. This study proposes that the reformation and enhancement of BIM-based constructability work process can lead to brilliant performance in the framework of the construction phase through achieving collaboration between the design team and the workers at the site.

• Korean Journal of Construction Engineering and Management
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• v.14 no.6
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• pp.38-48
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• 2013

Focusing on repetitive works of construction, many research have been conducted about application of the learning curve effect. However, it is still controversial, especially on the high-rise project, since the productivity improvement from the learning curve effects are hard to prove. In the previous research, applicability of the learning curve was mainly derived from the labor productivity data. Although the research were based on the real data, they merely concentrated on the simple conclusion that the labor productivity had improved or not, instead of the process interpretation. Therefore, the purpose of this research is to analyze the influence factors of the learning curve effect in high-rise projects and elucidate the offset factors of the effect. Based on these factors, a model for estimating the labor productivity containing the concept of process learning is suggested. Through our research, traditional learning curve theory could be compensated and re-established with having more appropriateness for high-rise projects.

• KIEAE Journal
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• v.11 no.4
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• pp.37-45
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• 2011

In order to have better understanding of the concept and meaning of soundscape, it is very important to consider entirely the objectives, activities, historical development processes and accomplishments of world soundscape project leading by R. Murray Schafer. Therefore, the ultimate purpose of this study is to inquire into the concrete development processes and practical activities of the soundscape in order to correspond to Schafer's conception of a tuning of the world. The establishment of WSP is based on noise pollution, listening attitudes and noisy music. Schafer formulated 5 types of item as a target, and wrote down concrete activities to achieve the goals. Especially, he devised the conceptual, educational, political and social strategies as the practical strategies of WSP. It is obtained various products by the activities of WSP from the planning starting year in 1969 to the stagnation period in 1979. That is, there are the social survey on noise-vancouver 1969, the book of noise, Okeanos, a study of community noise by-laws in canada 1972, the music of the environment, the vancouver soundscape, european sound diary, five village soundscapes, handbook for acoustic ecology and so on. The research activities of WSP arouse inspiration in many people interested in sound. Specially, it is emphasized the importance of increasing for their social roles in order to more actively improve and create the quality of sound environment. Also, it shows us the directions on how to lead our furture sound.

• 한국IT서비스학회:학술대회논문집
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• 2007.11a
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• pp.230-235
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• 2007

현대의 조직은 급격한 업무 환경의 변화와 극심한 경쟁에 대응하기 위하여 정보기술에 상당부분 의존하고 있다. 업무 체계가 다양하고 복잡해지면서 이들 체계 간의 연계를 효과적으로 하여 조직의 전략들 달성하는 것이 중요하며, 또한 업무의 민첩성과 유연성을 확보할 수 있도록 정보체계를 구축하는 것이 필요하다. 이를 위하여 전사적 아키텍처(EA)와 서비스 지향 아키텍처(SOA)가 각광을 받고 있으나, 이들은 일회성 프로젝트로 추진하여서는 섬과를 얻을 수 없으며, 지속적인 관리가 필요하다. 이를 뭐하여 EA 거버넌스와 SOA 거버넌스가 필요하다. 이들 간의 어떤 관계가 있는지를 고려하며 어떻게 구축할 것인가를 설명하였다.

• 한국경영정보학회:학술대회논문집
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• 2008.06a
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• pp.312-325
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• 2008

지식 네트워크 (knowledge network) 구축은 지식의 재사용을 통하여 조식의 효율성을 개선시키고 지식 레버리지를 통하여 혁신을 촉진한다는 점에서 지식관리의 핵심적 요소이다. 본 연구는 (1) 개인이 집단 내 외에서 맺고 있는 지식 네트워크가 팀의 객관적, 주관적 성과에 미치는 영향을 고찰하고, (2) IT 활용이 지식 네트워크의 효과성을 어떻게 조절하는 가에 대해서 실증 함으로써, (3) 지식 네트워크 구축, IT 활용, 그리고 팀 성과 간의 관계에 대하여 학문적, 실무적 시사점을 제시하고자 한다. 먼저 사회 네트워크 이론을 바탕으로 지식 네트워크의 집단 내부 결속과 외부 매개성을 통합하는 이론적 프레임워크를 개발하고 국내 5개 컨설팅 업체의 172명의 컨설턴트와 42개 프로젝트 팀을 대상으로 사회 네트워크 분석 (Social Network Analysis)을 실시하였다. 분석 결과는 지식 네트워크의 내부 결속(네트워크의 밀도)과 팀 성과의 선형적인 관계를 지지하였으며, 외부 매개성은 직접적으로 팀 성과에 영향을 미치지 않았으나 팀 수준의 IT 활용 (공동체적인 컴퓨터 매체의 활용)과 상호작용을 통해서 팀의 성과를 실질적으로 향상시키는 것으로 나타났다.

• 한국경영정보학회:학술대회논문집
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• 2008.06a
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• pp.571-584
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• 2008

지식 네트워크 (knowledge network) 구축은 지식의 재사용을 통하여 조식의 효율성을 개선시키고 지식 레버리지를 통하여 혁신을 촉진한다는 점에서 지식관리의 핵심적 요소이다. 본 연구는 (1) 개인이 집단 내 외에서 맺고 있는 지식 네트워크가 팀의 객관적, 주관적 성과에 미치는 영향을 고찰하고, (2) IT 활용이 지식 네트워크의 효과성을 어떻게 조절하는 가에 대해서 실증함으로써, (3) 지식 네트워크 구축, IT 활용, 그리고 팀 성과 간의 관계에 대하여 학문적, 실무적 시사점을 제시하고자 한다. 먼저 사회 네트워크 이론을 바탕으로 지식 네트워크의 집단 내부 결속과 외부 매개성을 통합하는 이론적 프레임워크를 개발하고 국내 5개 컨설팅 업체의 172명의 컨설턴트와 42개 프로젝트 팀을 대상으로 사회 네트워크 분석 (Social Network Analysis)을 실시하였다. 분석 결과는 지식 네트워크의 내부 결속(네트워크의 밀도)과 팀 성과의 선형적인 관계를 지지하였으며, 외부 매개성은 직접적으로 팀 성과에 영향을 미치지 않았으나 팀 수준의 IT 활용 (공동체적인 컴퓨터 매체의 활용)과 상호작용을 통해서 팀의 성과를 실질적으로 향상시키는 것으로 나타났다.

• Korean Journal of Construction Engineering and Management
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• v.13 no.4
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• pp.152-163
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• 2012

At the conceptual phase of a construction project, estimated construction cost is very important as it significantly influences the owner's decision-making. Accurate cost estimating, in the early stage of a public construction project, serves as a critical factor because initial decision-making effects the final cost of a construction project. However in the cases of Korean public apartment projects, excluding a few of the public owners, there is a problem in properly estimating construction cost due to the lack of construction cost estimating system. Thus, this research developed a public apartment cost estimating system using case-based reasoning that was suggested by a previous research with 66 cases of Korean public apartment projects. Based on the system experiments involving 19 public officers and 10 cases of Korean public apartment projects, the effectiveness of the system in terms of estimation accuracy and user-friendly was confirmed. As a result, the developed system has an error range of 1.47% to 13.74% and mean of 6.15%. In addition, the system was evaluated that it could greatly improve the current estimation task of public officers. Consequently, the results of this research can be used as a foundation for a technological advance in estimating construction cost and improving the accuracy and consistency of construction cost estimation.