• Journal of KIISE
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• v.41 no.11
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• pp.892-899
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• 2014

Dynamic binary instrumentation is a code insertion technique for debugging a program without scattering its execution flow, while the program is running. Most dynamic instrumentations are implemented using dynamic binary translation techniques. Existing studies translated program codes dynamically by parsing the machine code stream to intermediate representation (IR) and then applying compilation techniques for IRs. However, they have high overhead during translation, which is a major cause of difficulty in applying the dynamic binary translation technique to the program which requires high responsiveness. In this paper, we introduce a light-weight dynamic binary instrumentation framework based on a novel dynamic binary translation technique which has low overhead while translating the program code. In order to reduce the translation overhead, our approach adopts a tabular-based address translation and exploits a translation bypassing scheme, which stores the translated address of a frequently called library function in advance. It then accesses the translated address and executes function codes without code translation when calling the function. Our experiment results demonstrated that the proposed approach outperforms the prior dynamic binary translation techniques from 2% up to 65%.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.19 no.4
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• pp.917-924
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• 2015

In this study, we study that the video attributes captured by built-in camera in smart-phone can effect on the quality of PPG signal. The conditions of video attributes were composed of the bitrate, the resolution, the flash. As each condition, we measured a change in the red value of the video image and calculated a PPI(Pulse to Pulse Interval) for extracting the pulse wave signal. 20 subjects participated in the experiment and this experiment was carried out 18 tasks. The PPG signal was measured simultaneously for two minutes with the PPG sensor in the middle finger and Smart-phone in the forefinger of the right hand. By proceeding the correlation analysis, we obtained the highest correlation condition(83%, p=0.01), which the resolution was $640{\times}480$, bitrate was 5000kbps, flash was on. As a result, this study will be a useful guide for quality of signals in the pulse signal measurement system using built-in camera in smart-phone.

• KIPS Transactions on Software and Data Engineering
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• v.4 no.5
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• pp.209-218
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• 2015

BPEL is used in various domains since it can describe the flow of works according to conditions and rules, and it can call web services in service-oriented computing environments. However, new functions that are not provided by BPEL grammar are required in specific domains. Generally, when new functions are required, the domain-specific language should be newly defined and developed, which requires high development cost. In this regard, a new function needs to be defined and added instead of developing domain-specific language with the new functions added. However, such methods only allow an addition of a single function, and it is difficult to design and add new functions according to the needs. This paper defines XAS4B document, which extends the BPEL grammar function through XML schema in order to add new functions, and proposes BPEL engine generator that generates BPEL engine with the new functions added by processing the document. The XAS4B document enables the creation of a new grammar added to BPEL using XML schema. It also shows the process of adding new functions to BPEL engine using AspectJ, JAVA implementation of aspect-oriented programming. The proposed system can add new functions using AspectJ without modifying BPEL engine. This allows the provision of new functions at low cost in various domains.

• Journal of radiological science and technology
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• v.31 no.2
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• pp.191-198
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• 2008

This study investigated the realities of information acquirements and its requirements in the overseas employment and domestic connected education for students at the department of radiation in order to provide basic information for developing the standard educational curriculum for future internationalization in the education of radiation and presenting its direction. The investigation implemented in this study was performed through a questionnaire with 688 students enrolled in the department of radiation. The conclusion of the investigation is summarized as follows : The answers for the question of 'No acquirements in the information of the overseas employment and connected education for radiological technologists' were 487 students (70.8%), and the reason that 'There are no chances in related education' was the highest rate, 424 students (61.6%), of the answers. In the education for the overseas employment, the answers for the question of 'Select a connected education program in school instead of study abroad' were the highest rate, 436 students (63.4%). The most concerned country for the overseas employment was 'Australia', 247 students (35.9%). As a result, answers for the interest, participation, need, and hope for the overseas employment showed high rates even though they demonstrated a low recognition level in the overseas employment. In addition, it is necessary to strategically plan an education program for this issue because all participants agree with the current stream.

• Journal of the Korean Society for Library and Information Science
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• v.42 no.3
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• pp.103-131
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• 2008

Today. the mental health has a great deal of impact on individuals and the society surrounding. Therefore. this research is to propose a way of bibliotherapical intercession by stages and patterns as to examine the recovery process of students with negative emotion by using the grounded theoretical method. This research collected materials through focus-interview, participant observation and book reports of 4 experiments involving female college students aged from 21 to 23, all having emotional and psychological difficulties. The recovery process of female students with negative emotion involved causal factors such as "recognition of hidden wound" "Sense of inferiority", and "difficulty in forming relationships", as well as contextual factors like "sympathetic attitude". which altogether brought about the core phenomenon. "pursuit for healthy ego". This core phenomenon induced to recovering the bright and positive attitude through using the strategies of 'self insight' and application of 'management plan', influence by such incoherent conditions as 'intimate surroundings' and $\setminus$ 'support system patterns'. And as time passed. the recovery process appeared tin four stages: 'issues recognition'. 'emotional responses', 'issue solution' and 'self application'.

• Journal of Intelligence and Information Systems
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• v.10 no.2
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• pp.147-163
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• 2004

For the purchase of a cheaper product on the Internet, many customers have been trying to search online shopping mall sites and visit comparison-pricing shops that compare prices and other criteria of the product. Others have been participating into online auction markets or group-buying markets. However, a lot of online shopping malls, auction markets, and group-buying markets provide the same product with different prices. Since these marketplaces have different price settlement mechanism, it is very difficult for the customers to determine marketplace to purchase, considering different kinds of marketplaces at the same time. To overcome such limitations, decision rules and solution procedures for purchase decision making are necessary, which can cover multiple marketplaces simultaneously. For this purpose, purchase decision making in each market must be conducted to maximize customer's utility, and conflicts with other marketplaces must be resolved. Therefore, we have developed the rules and methods that can negotiate cooperatively the purchase decision making in several marketplaces, and designed an architecture of Intelligent Buyer Agent and a message structure to support the idea.

• Journal of Korea Society of Industrial Information Systems
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• v.22 no.1
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• pp.127-138
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• 2017

The Purpose of this Study is to Examine the Effects of Organizational Commitment on Safety Behavior. This Study Built a Exploratory Model that there is Causal Relationship of Organizational Commitment to Employee's Performance that Safety Behavior. Additionally this Study Examine the Moderating Effect of Employee's Job Insecurity on the Effect of Employee Safety Behavior. For the Verification of this Study Model, the Moderating Effects Regression Analysis was Applied to the Surveys of 240 Members of Small and Medium -Sized Construction Industry Employee in Busan. As a Result of the Verification, the First of Organizational Commitment on Organizational Performance has Found that all Three Organizational Commitment of Affective Commitment, Continuance Commitment and Normative Commitment have Impacts Safety Behavior. Second the Study Verifies the Moderating Effect of Employee's Job Insecurity. the Moderating Effect of Employee's Safety Behavior Between the Independent Variable(organizational commitment) and the Outcome Variables has been Analyzed. As a Result, High level of Job Insecurity Employee has been shown to have a Moderating Effect Between the Independent Variable and Safety Behavior.

• The Journal of the Korea Contents Association
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• v.11 no.12
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• pp.931-942
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• 2011

As the social infrastructure becomes deteriorated, its maintenance cost has been increased rapidly. There are growing needs to manage facilities systematically to reduce this kind of maintenance budget, and furthermore to avoid safety accidents in Korea. Asset management is widely used in New Zealand, the United States, Great Britain to manage their social facilities. In these countries, standardized information model and its system are developed and in service for asset management. There are several researches on asset management of social infrastructure in Korea, and the KTAM-40 work procedure is one of the main results for these researches. In this paper, the IIMM of New Zealand and the KTAM-40 of Korea, were surveyed to develop a business architecture of the highway asset management system. A new business architecture for the highway asset management system is proposed based on the KTAM-40 work procedure: First, the organization and its role for the highway asset management are defined. Second, business functions of the highway asset management are classified. Third, the highway asset management functions and the flow of information are defined. In the last section, differences between the newly designed architecture and the other systems' architecture is reviewed.

• The Journal of the Korea Contents Association
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• v.15 no.4
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• pp.45-55
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• 2015

The Korean wave contents such as Korean TV dramas and K-pop are sweeping over foreign countries. This Korean wave has improved positive national brand image and also brought up interest across Korean culture. Due to expansion of Korean wave, some Korean education contents started to be made by using Korean wave contents. These kinds of Korean educational online contents induce interest in studying Korean by using Korean wave contents. Furthermore, people can indirectly experience Korean culture. so we need to come up with more effective application plan. However, contents which has produced currently still have insufficient part. Based on that, current state of Korean education online contents by using Korean wave contents will analyze into especially a series of 'Pit-A-Pat Korean' from Nuri-Sejong school need to be proposed a review of the limitations and improvement conclusion in this paper. The K-drama produced by effectively utilizing the planning and the Korean educational content. This will reveal to the culture and traditions of Korea, as well as a simple information transfer. So we expect to be a valuable activity that is responsible for a stem to improve the country's image as one item K-culture itself.

• Journal of the Korean Society for information Management
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• v.36 no.4
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• pp.279-300
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• 2019

This study aims to analyze and to demonstrate the research trends and intellectual structure in the field of catalog in the 2000s and 2010s through co-word analysis. The field of catalog had firmly established its own research area and Many differences were found in research trends and intellectual structures in the 2000s and 2010s. First, the average number of articles decreased by 4.2 in the 2010s compared to the 2000s, but the number of author keywords was not significantly different. Only 22.2% of keywords appeared more than three times in both periods, and 77.8% of keywords appeared more than three times in one period. Second, in terms of intellectual structure, the 2000s, represented by three-level clusters, formed a more complex network than the 2010s, represented by two-level clusters. Third, as a result of examining the changes in the characteristics of each cluster, there were some research topics with few changes, but many research topics were more actively progressed or subdivided, and decreased. The results of this study are meaningful in that they can visually grasp the intellectual structure along with the trend of the age of catalogue, and can prepare for related education and research by predicting the future.