• Journal of Digital Contents Society
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• v.11 no.3
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• pp.375-383
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• 2010

In developing question-answering (QA) systems, it is hard to analyze natural language questions syntactically and semantically and to find exact answers to given query questions. In order to avoid these difficulties, we propose a new style of question-answering system that automatically generate natural language queries and can allow to search queries fit for given keywords. The key idea behind generating natural queries is that after significant sentences within text documents are applied to the named entity recognition technique, we can generate a natural query (interrogative sentence) for each named entity (such as person, location, and time). The natural query is divided into two types: simple type and sentence structure type. With the large database of question-answer pairs, the system can easily obtain natural queries and their corresponding answers for given keywords. The most important issue is how to generate meaningful queries which can present unambiguous answers. To this end, we propose two principles to decide which declarative sentences can be the sources of natural queries and a pattern-based method for generating meaningful queries from the selected sentences.

• The Journal of the Korea Contents Association
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• v.11 no.6
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• pp.106-115
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• 2011

In this paper, we evaluate the effectiveness of previous shading algorithms in depicting shape of 3d objects. We perform a study in which people are shown an image of one of ten 3D objects shaded with one of eight styles and asked to orient a gauge to coincide with the surface normal at many positions on the object's surface. The normal estimates are compared with each other and with ground truth data provided by a registered 3D surface model to analyze accuracy and precision. Our experiments suggest that people interpret certain shape differently depending on shading of 3d object. This paper offers substantial evidence that current computer graphics shading algorithms can effectively depict shape of 3d objects where the algorithms have the properties of lots of tone steps and uniformly distributed tone steps. This type of analysis can guide the future development of new CG shading algorithms in computer graphics for the purpose of shape perception.

• The Journal of the Korea Contents Association
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• v.11 no.6
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• pp.228-241
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• 2011

This study aims to consider the effects of the change in communication culture affected by 'Social Media' on the film marketing. Particularly, Twitter, a kind of Social Media which shows the most rapid growth recently, is examined for what kind of benefits it's functional characteristics would provide for film marketing. Twitter, which has distinctive characteristics such as free access, the high level of attention resulting from its simplicity, alarming speed of spreading information and low costs, offers a variety of marketing opportunities not only for general commercial films but for low budget or independent films that do not have sufficient marketing opportunity. In the case of the documentary film (2010, Woo-jung Kwon), starting from the process of the film production through release to the time after the screening, it continued to communicate with potential audiences via Twitter and tried every tool of film marketing like advertising, PR, promotion and word of mouth. By doing so, it provides a model for low budget or independent films about what alternative activities they might be able to conduct for film marketing.

• The Journal of the Korea Contents Association
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• v.10 no.7
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• pp.70-80
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• 2010

Due to the resource limitations of sensor nodes, providing a security protocol is a particular challenge in sensor networks. One popular method is the neighborhood-based key agreement protocol (NEKAP). NEKAP is an efficient and lightweight protocol, but it includes loopholes through which adversaries may launch replay attacks by successfully masquerading as legitimate nodes. In this paper, we present a modified security protocol for wireless sensor networks. We provide four types of keys for each node, which adapt to different security requirements; and an improvement is made to alleviate the replay attack. According to our qualitative performance analyses, the proposed security protocol provides effectiveness in terms of authentication security, attacking node detection, and replay attack resilience when compared to the conventional method.

• The Journal of the Korea Contents Association
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• v.14 no.1
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• pp.346-355
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• 2014

The study was undertaken to identify college freshmen' depression, anxiety, and somatic symptoms and clarify college life characteristics influencing it. The study was a descriptive study with 300 freshmen from H university. Data were collected from April 22 to 26, 2013 using a structured self-report questionnaire. Data were analyzed using descriptive statistics, t-test, one-way ANOVA, Pearson's correlation coefficient, and multiple regression. As a result, first, the mean scores of the subjects were 2.33 in depression, 1.94 in anxiety, and 1.63 in somatic symptoms. Their depression, anxiety and somatic symptoms were higher as their sex and perceived self-efficacy. Second, college life characteristics explained 46.1% of variance in depression and 26.3% of variance in anxiety. college life characteristics, depression and anxiety explained 35.8% of variance in somatic symptoms among freshmen. These results will be used for developing programs to increase mental and physical health and to adapt in college life for freshmen.

• The Journal of the Korea Contents Association
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• v.14 no.5
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• pp.281-288
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• 2014

This study has surveyed patient education and counseling, based on the data you want to utilize the expectations on dental prosthetic appliances (denture, bridge) and implants among 307 workers who participated in reservists mobilization training of Hyundai Heavy Industries located in Ulsan City. The reliability of expectations on dental prosthetic appliances and implants were fairly high at cronbach'${\alpha}$ of .971 and .967 respectively. The collected data was analyzed through IBM SPSS Statistics. v. 19.0 program at the significance level of 0.05. The research findings are as follows. First, the expectations on prosthetic appliances scored an average of 3.98. Second, the expectations on implants scored an average of 3.74. Third, the expectations on implants depending on subjective health status scored an average of 3.74, which were statistically significant (p=0.003). Fourth, the differences in expectations on implants depending on the concerns for oral hygiene care scored an average of 3.74, which were statistically significant (0<0.001). Fifth, the expectations on prosthetic appliances and implants were strongly correlated at 0.392. As a result of implants of prosthodontics need for accurate information transfer.

• The Journal of the Korea Contents Association
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• v.14 no.11
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• pp.713-721
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• 2014

Main purpose of this study is to investigate the effect of the self-leadership of local public officials on the customer-oriented public service provision. Structural Equation Model was applied to analyze the relationship between self leadership and customer oriented public service attitude. Positive structural relationships between self-leadership and customer-oriented attitude was confirmed from empirical analysis. While variable job-satisfaction took intermediating role between self-leadership and customer-oriented attitude. The result implies that behavioral approach might be a more effective policy measure to improve citizen's satisfaction for public services. For a extended periods, Korean government introduced various institutional arrangements to improve the customer satisfaction for public service. However, the result was not satisfactory. The result of this study suggest behavioral approach to improve public service customer satisfaction.

• The Journal of the Korea Contents Association
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• v.14 no.11
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• pp.759-771
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• 2014

This study examines the overall structure among family relationship, self-efficacy, self-esteem, and delinquency of adolescent in single-parent families using structural equation modeling to provide theoretical basis preventable juvenile delinquency. The data of 516 middle and high school students in the research into the promotion policies on children and adolescents' mental health(2012) by the National Youth Policy Institute analysed. The result of this study are: (1) family relationship affects self-efficacy, self-esteem, and delinquency of adolescent, (2) family relationship affects delinquency of adolescent by the mediation of self-esteem, (3) self-efficacy doesn't affect delinquency of adolescent. This study suggests the necessity of both intervention as well as the development implementation of practical methods for the prevention of delinquency of adolescent.

• The Journal of the Korea Contents Association
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• v.14 no.11
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• pp.225-235
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• 2014

The Purpose of the study was to examine the structural relationship among social support(social activity, family/social relationship), emotional problem and quality of life of Elderly Employment Program participants. An analysis was conducted on 2,005 participants from the data of the '2012 Elderly Employment Program Participants Survey'. The major findings were as follows: First, family/social relationship had positive effects and emotional problem had negative effects to quality of life. Second, social activity had negative effects to emotional problem. Finally, social activity had mediator effects to quality of life through emotional problem. Based on the results, the implications for social work practice and policy were suggested.

• The Journal of the Korea Contents Association
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• v.14 no.3
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• pp.195-202
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• 2014

Korea society has become a multicultural society by the mid-1990s. It is difficult to adapt to multicultural youth social acceptance without contrast. In particular, Multicultural youth compared to the general characteristics of the home environment was much influenced by the growth. Multicultural youth has plain color, Eye color that general problems of the exchange is not easy, family-friendly social life, make friends and influence more than the home was subjected to environmental impact. In other words, parenting is influenced by the family-friendly social life. multi-cultural families many of the country are concentrated in low-income. Consequently, the home environment is affected by property delinquency. This study was research targeting multicultural youth.