• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2006.06b
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• pp.265-271
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• 2006

According to globalization of world economy by extension of production, sales and distribution all around the world and international transportation system changed into a transport system that puts great importance on speediness and value-added services, international transport system is changing into a Multimodal Transport Routing centered system that systematically connects marine, air and rail transports. Due to such changes production, sales and distribution must be provided in time and Multimodal Transport Routing, which can provide multi-dimensional logistics services to customers of global network, is needed but information connection for international transport and connection system between transport modes are insufficient and can not be activated. Especially in Korea, selection standard of 3rd party logistics companies and transport companies is presented, but logistics exclusive companies, which plan and execute the transportation, can't present a systematic evaluation standard for international Multimodal Transport Routing, selection. Thus, this research surveys important previous studies about Multimodal Transport Routing, selection, derives an evaluation standard for Multimodal Transport Routing, selection through interview with company officials, and presents a theoretical basis for Multimodal Transport Routing, selection through systematic analysis of Multimodal Transport Routing, selection using Analytical Hierarchy Process (AHP).

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.16 no.1
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• pp.38-59
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• 2022

Web services instances can be classified into two categories, namely trusted and untrusted from users. A web service with high throughput (TP) and low response time (RT) instance values is a trusted web service. Web services are not trustworthy due to the mismatch in the guaranteed instance values and the actual values achieved by users. To perform web services selection from users' attained TP and RT values, we need to verify the correct prediction of trusted and untrusted instances from invoked web services. This accurate prediction of web services instances is used to perform the selection of web services. We propose to construct fuzzy rules to label web services instances correctly. This paper presents web services selection using a well-known machine learning algorithm, namely REPTree, for the correct prediction of trusted and untrusted instances. Performance comparison of REPTree with five machine learning models is conducted on web services datasets. We have performed experiments on web services datasets using a ten k-fold cross-validation method. To evaluate the performance of the REPTree classifier, we used accuracy metrics (Sensitivity and Specificity). Experimental results showed that web service (WS1) gained top selection score with the (47.0588%) trusted instances, and web service (WS2) was selected the least with (25.00%) trusted instances. Evaluation results of the proposed web services selection approach were found as (asymptotic sig. = 0.019), demonstrating the relationship between final selection and recommended trust score of web services.

• Journal of the Korean Data and Information Science Society
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• v.21 no.3
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• pp.513-521
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• 2010

Most of universities have carried out course evaluation to apply the performance appraisal for professor. But, course evaluation depends on characteristics of each class such as class size, type of lecture, evaluator's grade and so on. As the results, such characteristics of each class lead to serious bias which makes lecturers distrust the course evaluation results. Hence, we propose a equating method for the course evaluation by regression analysis which use stepwise variable selection. And we compare proposed method with the other method by Cho et al. (2009) with respect to efficiencies. Also we give the example to which the method is applied.

• The Journal of the Korea Contents Association
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• v.11 no.10
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• pp.41-48
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• 2011

In feature selection, the selective evaluation scheme for Ant Colony Optimization(ACO) has recently been proposed, which reduces computational load by excluding unnecessary or less promising candidate solutions from the actual evaluation. Its superiority was supported by experimental results. However the experiment seems to be not statistically sufficient since it used only one dataset. The aim of this paper is to analyze convergence characteristics of the selective evaluation scheme and to make the conclusion more convincing. We chose three datasets related to handwriting, medical, and speech domains from UCI repository whose feature set size ranges from 256 to 617. For each of them, we executed 12 independent runs in order to obtain statistically stable data. Each run was given 72 hours to observe the long-time convergence. Based on analysis of experimental data, we describe a reason for the superiority and where the scheme can be applied.

• The Journal of Korean Association of Computer Education
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• v.13 no.5
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• pp.1-13
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• 2010

According to the 2007 national curriculum amendment, new 'informatics' textbooks have been used since 2010 as a textbook for middle school first graders and will eventually be used in other grades. However, only a few studies that have evaluated the 'informatics' textbooks, have been performed. What is worse is the fact that none of the evaluating tools even exist. Therefore, we propose the criteria of selecting 'informatics' textbooks in middle school. Its contents can be summarized as follows: First, this paper classifies previous studies on textbook evaluation into general criteria of selecting textbooks, method of textbook analysis based on how inquisitively students can learn and previous studies which analyzed existing secondary school 'informatics' textbooks and propose the criteria of selecting 'informatics' textbooks in middle school. Second, using the proposed selection criteria for 'informatics' textbooks and other evaluation criteria, five kinds of informatics textbooks were analyzed. Furthermore, it is expected that we can use the selection criteria as a material to choose the new 'Information science' textbooks, and to suggest alternative directions of future studies in the area of evaluating 'Information science' textbooks.

• Journal of Korea Technology Innovation Society
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• v.15 no.4
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• pp.815-836
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• 2012

Corporate Laboratories have been a key driver of Korea's economic growth through attaining technology competitiveness. The study is focused on selecting outstanding small and medium corporate laboratories with high R&D capability and fostering the selected laboratories. The main topics of this study are to establish logics regarding the selection process and to propose the implementation schemes of the process. For the selection of outstanding laboratories, this study presents a evaluation indicators based on logic model and verification of the validity of following evaluation indicators through a Pilot test. The evaluation indicators from this study are expected to be in practical use as a reference for support policies of outstanding laboratories' R&D activities. For corporations, these indicators can be used to examine their R&D capability. This study also suggests differentiated policy support measures using the findings to maximize the effectiveness of the selection process.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.19 no.37
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• pp.87-94
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• 1996

There is a currently a focus on the usability of interactive computer products. Many usability measurement and evaluation methods have been developed in the fields of human-computer interaction and software ergonomics. In this paper, the issues of usability evaluation methods are introduced, and the usability evaluation methods are classified and compared. Also, the framework for systematic usability effort based on product' lifecycle is presented.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.25 no.9
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• pp.944-951
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• 2014

In this paper, evaluation indices of the location selection of satellite ground station is proposed to maximize satellite applications. The evaluation index has been developed based on radio-wave environmental conditions to avoid the radio interference to perform the missions of ocean observation satellite. The radio interference investigation was generated based on professionals of satellite control/operation, calibration/validation, applications. And evaluation index was applied to a candidate site of ground station. In the future, this result may be able to compare with the results of other candidate sites for the best location selection of 'marine mission-oriented ground stations'. According to recent trends of mission-oriented ground stations, the results can be used for location selection of 'marine mission-oriented ground station' as reference.

• Proceedings of the Korea Concrete Institute Conference
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• 2008.04a
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• pp.965-968
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• 2008

This study is interested in modeling the selection of optimal repair materials in view of the qualitative evaluation. In order to architecting the evaluation model of various repair alternatives, Analytical hierarchy process techniques was applied to this study. It is composed of aesthetics, easy-to-application, economical efficiency, and environment-friendly properties in upper level. Among the qualitative evaluation items, Environment-friendly properties and execution cost included in economical efficiency is highly weighted. It was concluded that the evaluation model by this study is very useful to choose the best alternative among various repair materials.

• The Journal of Asian Finance, Economics and Business
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• v.8 no.3
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• pp.297-305
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• 2021

A contractor or a main contractor is a company with full capacity to construct all project's works for the owner. A subcontractor is an organization that works with the main contractor to execute and complete work packages for the project. Selecting an effective subcontractor will help the efficiency and success of any projects in the construction industry. Therefore, this study identified subcontractor evaluation factors in Vietnam by collecting questionnaire survey data from engineers and staffs in the construction industry project environment. An exploratory factor analysis (EFA) was then performed to identify the critical factors when evaluating and selecting the subcontractor in construction projects. Moreover, when considering the impact level in terms of the average value, the research results showed that the most critical concern was the subcontractor's reputation. Furthermore, the top five factors affecting the sub-contractor evaluation and selection are (i) reputation, (ii) price, (iii) construction techniques, (iv) ability to implement projects according to commitments, and (v) subcontractor competence (the team of workers, technician staff, engineers with full capacity according to regulations). These research results provide an overall perspective that will help main contractors develop suitable subcontractors' evaluation and selection factors in their projects in the construction industry.