• Journal of Multimedia Information System
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• v.2 no.4
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• pp.303-310
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• 2015

Vulnerable road users such as bike, motorcycle, small automobiles, and etc. are easily attacked or threatened with bigger vehicles than them. So this paper suggests a new approach two-wheelers detection system riding on people based on modified histogram of oriented gradients (HOGs) which is weighted by curvature and local correlation coefficient. This correlation coefficient between two variables, in which one is the person riding a bike and other is its background, can represent correlation relation. First, we extract edge vectors using the curvature of Gaussian and Histogram of Oriented Gradients (HOG) which includes gradient information and differential magnitude as cell based. And then, the value, which is calculated by the correlation coefficient between the area of each cell and one of bike, can be used as the weighting factor in process for normalizing the HOG cell. This paper applied the Adaboost algorithm to make a strong classification from weak classification. The experimental results validate the effectiveness of our proposed algorithm show higher than that of the traditional method and under challenging, such as various two-wheeler postures, complex background, and even conclusion.

• Journal of Korean Society for Quality Management
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• v.45 no.4
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• pp.903-916
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• 2017

Purpose: The paper analyzes empirically the causal relationship between customer-oriented Quality circle activities and Business Performance for Korean service firms. We compare the operational characteristic behavior of the service firms and business performance. Methods: In this study, we used 3 variables, QC activities, Employee commitment and business performance. Especially, Service SME's QC Circle activities were analyzed in related with growth of company on the basis activities such as Leadership(team), improvement activity, Organizational learning, customer-focus activity and employee suggestion. Results: The result of analysis showed that employee commitment affected significantly on financial performance and non-financial performance and in turn, improvement activities, Organizational learning and customer-focus activity affected significantly on business performance (financial and non-financial). Conclusion: In the summary of the characteristics of this study based on the research results, first, segmenting the QCC activities in the service business into 5 elements can be considered to be differentiated from the existing researches in the aspect of utilizing the organization's objective-oriented variables differently from the researches utilized the variables related personal characteristics. Second, this study suggested the recent research results that suggested the problems of the QCC clearly, through which what new QC story approach was suggested has working level value in the aspect of activating the service QCC.

• Journal of Computing Science and Engineering
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• v.5 no.2
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• pp.121-130
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• 2011

Recent research indicates that transient errors will increasingly become a critical concern in microprocessor design. As embedded processors are widely used in reliability-critical or noisy environments, it is necessary to develop cost-effective fault-tolerant techniques to protect processors against transient errors. The register file is one of the critical components that can significantly affect microprocessor system reliability, since registers are typically accessed very frequently, and transient errors in registers can be easily propagated to functional units or the memory system, leading to silent data error (SDC) or system crash. This paper focuses on investigating the impact of register file soft errors on system reliability and developing cost-effective techniques to improve the register file immunity to soft errors. This paper proposes the register vulnerability factor (RVF) concept to characterize the probability that register transient errors can escape the register file and thus potentially affect system reliability. We propose an approach to compute the RVF based on register access patterns. In this paper, we also propose two compiler-directed techniques and a hybrid approach to improve register file reliability cost-effectively by lowering the RVF value. Our experiments indicate that on average, RVF can be reduced to 9.1% and 9.5% by the hyperblock-based instruction re-scheduling and the reliability-oriented register assignment respectively, which can potentially lower the reliability cost significantly, without sacrificing the register value integrity.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.35 no.3
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• pp.24-31
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• 2012

Priority rules or sequencing heuristics conventionally used to determine resource allocation is to maximize the earned value on time and cost. This study provides a effective strategy-oriented approach for the program resource management problem with limited same resource, which systematically connects individual project objectives to the overall organizational goal, by introducing financial values as well as priority rules in a broader context. It deals with the resource allocation problem as the decision making problem in the strategic management paradigm to meet business objective and solves it using the analytic hierarchy process, and explains the method of application and usefulness through some simulation cases.

• Journal of Digital Convergence
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• v.16 no.2
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• pp.27-36
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• 2018

Financial IT evaluation methods have been unable to satisfy firms' requirements. There has been a growing demand for more comprehensively and non-financially measuring the IT performance. We developed a process-based approach in evaluating impacts of IT on primary activities. In this research we proposed a model that uses the corporate objective of IT and strategic fitt as the core independent variables in measuring the IT effect. Based on the data collected from the management variables of the 125 companies located in Korea, the companies were classified into the 4 different groups according to their corporate objective for IT: un-oriented, operations oriented, market oriented and dual oriented. Through the empirical analysis, we were able to demonstrate that the management of the companies showing a higher orientation level perceives a better IT investment performance, and this shows that the corporate objective for IT serves as a useful index for measuring the IT investment effect. In this research, it was also demonstrated that the strategic alignment has a positive influence on perceiving the IT investment effect.

• Smart Media Journal
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• v.3 no.1
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• pp.46-51
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• 2014

The focus of design in the contemporary point of view has changed from the improvement in production efficiency for profitability and in styling for sales promotion to human-oriented design. Human-centered design has developed into design which includes social and ethical responsibility and values. With tradition and culture as a base the principles of markets and capital are incorporated as well. Such current design is the outcome of design which honors social values represented based on culture acquired from individuals and society and the the responsibility of the designer who provides it. For the realization of social values in design, it should be considered along with the influence of design on society, this study presented the following cases: First, human-oriented design for those who are isolated, but should not be ignored; Second, cultural-oriented design which makes a contribution to local conditions; and third, usability-oriented design which replaces familiar ideas with new paradigms. This study presented the function and meaning of design in terms of purpose and the methods to solve social and human problems using design. Further studies should deal with the realization and extension of social values through design.

• Information Systems Review
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• v.4 no.2
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• pp.361-376
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• 2002

This paper proposes a framework for integrated credit risk management system in domestic bank financial institutions. Credit evaluation system, loan processing system, credit monitoring system, and credit risk management system are integrated for efficient and effective risk-adjusted performance management in this framework. Risk exposures, not only for each credit, but also for bank's whole credit portfolio need to be measured and analyzed through the concept of Value-at-Risk (VaR). The effects of changes in credit ratings of individual loaners on bank's credit risk exposure are also considered. We tried to model this integrated credit risk management system by using object-oriented modeling language, UML.

• The Journal of Information Technology
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• v.1 no.1
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• pp.49-63
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• 1998

The main purpose of the present study are as follows: First, through the extensive literature review, we tried to find out environmental changes in the management thoughts. Second, as we found a new paradigm on valuation-oriented management thoughts, we argued that cost/management accounting information should play key roles in creating values. Third, we pointed out that when firms used only financial performance measurements, problems could take places. Finally, especially to promote the organizational effectiveness and efficiency, we stressed that firms should use the balanced scorecard approach in performance measurements of its own organizations and personnels.

• 대한상한금궤의학회지
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• v.6 no.1
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• pp.1-25
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• 2014

Objective : The purpose of this study is exploring value of Shanghanlun six diagnostic system as Narrative Medicine by analyzing cases. Methods : In the article, we examined the theory of narrative medicine and current studies. And then key elements of narrative medicine was defined. On the basis of these, two medical cases were analyzed by reordering in accordance with time sequences and causality for confirming narrative factors. Results : The narrative approach to analyzing cases shows us that different diseases could be the result of same pathological patterns based on Shanghanlun. This tells us following four aspects. [1] Shanghanlun is the causes-oriented records and the text includes narrative factors. [2] Shanghanlun six diagnostic system is a process of constructing plot of medical case history through the clinical interpretation of contextual meaning of patient's life. [3] In the process of diagnosis, Schemata and script are engaged in assuming and confirming six patterns diseases. [4] The subjective factors of an individual can be applied universally through the provision of Shanghanlun. Conclusions : Narrative factors of Shanghanlun six diagnostic system suggest the possibility and value of Shanghan Medicine as Narrative Medicine in terms of Medical Humanities, essence of medical diagnosis and therapeutic action.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.11 no.4
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• pp.2124-2148
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• 2017

Accurate facial expression recognition (FER) requires reliable signal filtering and the effective feature extraction. Considering these requirements, this paper presents a novel approach for FER which is robust to noise. The main contributions of this work are: First, to preserve texture details in facial expression images and remove image noise, we improved the anisotropic diffusion filter by adjusting the diffusion coefficient according to two factors, namely, the gray value difference between the object and the background and the gradient magnitude of object. The improved filter can effectively distinguish facial muscle deformation and facial noise in face images. Second, to further improve robustness, we propose a new feature descriptor based on a combination of the Histogram of Oriented Gradients with the Canny operator (Canny-HOG) which can represent the precise deformation of eyes, eyebrows and lips for FER. Third, Canny-HOG's block and cell sizes are adjusted to reduce feature dimensionality and make the classifier less prone to overfitting. Our method was tested on images from the JAFFE and CK databases. Experimental results in L-O-Sam-O and L-O-Sub-O modes demonstrated the effectiveness of the proposed method. Meanwhile, the recognition rate of this method is not significantly affected in the presence of Gaussian noise and salt-and-pepper noise conditions.