• Annual Conference of KIPS
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• 2002.11c
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• pp.2305-2308
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• 2002

최근, 컴퓨터게임은 기존의 2 차원 RPG게임 형태로부터, 보다 사실감을 전달할 수 있는 3 차원 RPG나 시뮬레이션 형태의 게임으로 전환되고 있는 추세이다. 특히, 최근에는 사용자에게 몰입감 및 실재감을 향상시키기 위하여 체감효과를 사용하는 게임에 대한 관심이 고조되고 있다. 그 동안 가상현실 속에서의 촉각 인식을 위한 햅틱인터페이스에 대한 연구가 국.내외 학계를 중심으로 많이 진행되여 왔으며, 최근에는 이러한 기술을 엔터테인먼트 분야에 접목 시키려는 시도가 이루어지고 있다. 특히, 체감효과를 실현하기 위한 하나의 기술인 햅틱인터페이스가 컴퓨터 게임에서 시도되고 있으며, PC게임 분야에서는 어느 정도의 표준화가 이루진 상태이다. 본 고에서는, 현재 진행 중인 "3차원 컴퓨터 게임에서의 햅틱인테페이스" 에 대한 연구과제의 개론적 도입을 통하여, 촉감을 3차원 컴퓨터 게임에서 실현할 수 있는 기술적 방법을 서술하고자 한다.

• Proceedings of the Korean Information Science Society Conference
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• 2005.07b
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• pp.622-624
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• 2005

대규모 지문인식 시스템에서 비교해야할 지문의 수를 줄이기 위해서 지문분류는 필수적인 과정이다. 최근 이진분류기인 지지 벡터 기계(Support Vector Machine: SVM)를 이용한 지문분류 기법이 많이 연구되고 있다. 본 논문에서는 다중부류 지문분류에 적합하도록 자기 구성 지도(Self-Organizing Map:SOM)를 이용하여 OVA(One-Vs-All) SVM들을 결합하는 지문분류 기법을 제안한다. SOM을 이용하여 OVA SVM들을 동적으로 결합하기 위한 결합 지도를 생성하여 지문분류 성능을 높인다. 지문분류에 있어 대표적인 NIST-4 지문 데이터베이스를 대상으로 Jain이 구축한 FingerCode 데이터베이스에 제안하는 방법을 적용하여 $1.8\%$의 거부율에서 $90.5\%$의 분류율을 획득하였으며, 기존의 결합 방법인 승자독식(Winner-takes-all)과 다수결 투표(Majority vote)보다 높은 성능을 확인하였다.

• Annual Conference of KIPS
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• 2024.05a
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• pp.702-704
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• 2024

최근 사회적으로 근감소증에 대한 관심이 높아지면서 노인성 근감소증 시장이 골다공증 시장을 뛰어 넘을 것으로 전망하고 있다. 진단 방법으로 의료영상기반으로 근육량을 인공지능 기술로 측정하여 근감소증 진단에 적용하는 연구가 활발하게 진행되고 있다. 본 논문에서는 복부 CT 영상에서 L3 부위의 근육량을 기반으로 한 진단 기준을 이용하여 아시아 피험자의 T-score를 기반으로 근감소증 진단을 자동화하였다. 특히 복부 CT영상의 업로드와 함께 자동으로 근육량을 측정하여 개인별 상태를 확인할 수 있도록하여 근감소증 진단을 지원 할 수 있도록 개발하였다. 그리고 이를 기반으로 4가지 간 질환 환자의 L3 부위 근육량을 측정하여 근감소증과의 상관성을 확인하였다. 이는 다양한 기저 질환과 근감소증과의 연관성 연구에 도움이 될 것으로 기대한다.

• Journal of Family Resource Management and Policy Review
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• v.17 no.3
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• pp.125-144
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• 2013

This aim in this study is to investigate the meaning of case management and management in general from the case manger's perspective, as well as case mangers' abilities and networks. We also propose a development direction for the establishment of a local integrated family-centered community management system. Regarding the collection of qualitative data, focus group interviews (FGIs) were conducted with 11 case managers from social welfare organizations in the city of C. The interviews consisted of open-ended questions in the following four categories: understanding of case management, case managers' abilities, case management environments, and local community networks. According to the interview analysis, a total of 16 subcategories in 9 categories and 4 domains have been identified. Due to the ambiguity regarding the concept of case management, case management was completely dependent upon individual case managers' abilities. In particular, family-centered case management was found to exist in several organizations in the same region. In terms of case management environments, the following problems have been observed: absence of related departments and staff, confusion regarding performance evaluation standards, limitations in sharing information among organizations, limitations in resource exploration and management, redundant support, and an uncomfortable relationship between the private and public sector. Horizontal exchange and cooperation among organizations are essential to establish and facilitate a local community network. After all, to establish a local family-centered community case management system, the roles of a Healthy Families Center and a Multi-cultural Family Support Center as parts of a family-centered transfer system should be fully emphasized in local society, and the performance of family-centered case management should be developed.

• Journal of the Korean Institute of Rural Architecture
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• v.10 no.3
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• pp.67-74
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• 2008

The roles and needs for the greentourism facilities require the associated functions and systems which can be determined from considering the existing successful facilities. Some of successful examples for the greentourism facilities in Japan have been investigated, and their functions and systems carefully examined. This paper is intended to provide a meaningful step for introducing and applying the functions and systems for the greentourism facilities in Japan to Korea. The facilities should support the greentourism that leads to the active cultural exchange between urban and rural areas. The required specific facilities are discussed in this paper. For newly developed facilities, restaurants, specialty stores, and hotels may be effective facilities for the greentourism. The design for the entire greentourism facilities should consider, for the development of the area, the several kinds of required functions of the greentourism, such as the travel guide center, the marketing center, the information center, the business center, the human resources center, and the environment conservation center.

• Journal of Convergence for Information Technology
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• v.11 no.4
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• pp.130-136
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• 2021

This study investigated the general characteristics of mobility disadvantaged persons with disabilities, and to suggest implications to ensure personal mobility with the greatest possible independence for the physically disabled in community. The survey questionnaire included the categories as follows: the general characteristics of the participants, the status of outing and mobility, usage of low-floor buses & taxi for the disabled, service improvement, and mobile support center. Data collected from 219 with physical disabilities were analyzed for this purpose by using descriptive statistics. The study results showed that 54.6% of the total tended to go out everyday, and 17.0% rarely. 53.4% could go out without any assistance, and the major obstacles not to go out were stairs and inconvenience of public transportation. 26.9% used low-floor buses, and 71.1% preferred to use taxi for the disabled. The average waiting time for the usage of low-flow buses and taxi was 66.57 minute and 42.65 minute, separately. 78.7% insisted that the function of mobile support center in the community should be expanded, whereas only 49.8% recognized the role of mobile support center. Based on the study results, the researchers suggested to facilitate access by persons with disabilities to mobility aids, and to improve the actual state of pedestrian environment. In addition, the function of mobile support center should be expanded to help the mobility disadvantaged persons live independently in community, thereby contributing to the promotion of their quality of life.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.40 no.12
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• pp.2511-2519
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• 2015

In maritime logistics, the technology for transmitting status information has been greatly developed, but it has not been available in general logistics environment or it is impossible to support two-way communication as it simply receives and transfers a container's information. In particular, to support two-way communication in all sections of the global maritime logistics, the address value, which can identify the tag, should be managed. In this context, to improve the 433 MHz-based RFID, the project called "DASH 7" has been conducted in recent years. However, it has stopped proceeding because of its slow progress, including the standardization and development of references. In this paper, we introduced an active IP-RFID system configuration for real-time communication in global maritime logistics using a two-way communication-which is characteristic of an IP-applying virtual address values in the RFID tag, and proposing its process and function. When you apply the IP-RFID system proposed in this paper, not only real-time status tracking in the maritime logistics area is possible, but it is also applicable for controlling the tag.

• Asian Pacific Journal of Cancer Prevention
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• v.13 no.4
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• pp.1383-1388
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• 2012

Objectives: Regardless of its negative impact on quality of life, little is known about the importance of alopecia from the patients' perspective. This study aimed to explore the whole experience of chemotherapy-induced alopecia among Korean breast cancer patients including perception, attitudes, preparedness, and changes after alopecia. Methods: Patients expected to experience or had experienced alopecia were recruited at a tertiary hospital in Seoul, Korea. Semi-structured in-depth interviews were performed in 21 patients. Recurrent issues were identified and placed into thematic categories. Results: All patients think that appearance is important and they pay attention to how they look like. They had negative perceptions about alopecia. Patients were not well prepared for alopecia, and experienced substantial physical, psychological and social distress. Lack of information and limited social support combined with negative images of cancer made it difficult for patients to overcome the trauma and deterred them from usual daily activities resulting in poor quality of life. Conclusions: Patients were not well prepared for alopecia and negative perceptions, lack of preparedness, and limited social support and resources increased alopecia-related distress. Educational programs for preparing patients to cope with alopecia distress and advocate activities to change people's negative perception about alopecia are needed to reduce the burden imposed by alopecia in cancer patients.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.8 no.12
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• pp.4552-4567
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• 2014

A (n,t,n) secret sharing scheme is to share a secret among n group members, where each member also plays a role of a dealer,and any t shares can be used to recover the secret. In this paper, we propose a strong (k,t,n) verifiable multi-secret sharing scheme, where any k out of n participants operate as dealers. The scheme realizes both threshold structure and adversary structure simultaneously, and removes a trusted third party. The secret reconstruction phase is performed using an additive homomorphism for decreasing the storage cost. Meanwhile, the scheme achieves the pre-verification property in the sense that any participant doesn't need to reveal any information about real master shares in the verification phase. We compare our proposal with the previous (n,t,n) secret sharing schemes from the perspectives of what kinds of access structures they achieve, what kinds of functionalities they support and whether heavy storage cost for secret share is required. Then it shows that our scheme takes the following advantages: (a) realizing the adversary structure, (b) allowing any k out of n participants to operate as dealers, (c) small sized secret share. Moreover, our proposed scheme is a favorable candidate to be used in many applications, such as secure multi-party computation and privacy preserving data mining, etc.

• The Journal of Economics, Marketing and Management
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• v.6 no.1
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• pp.17-24
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• 2018

Purpose - Major countries in the world continue to grow up without employment by the economy opening, more investment in foreign countries and technical innovation. Nevertheless, SMEs have job creation continuously. As this result, support for SMEs that is the source of job creation has increased attention. However, previous research between SMEs and job-creating is limited to the job creation effect of comparing with large companies, and R&D investment effect including government support. Also, many research provides the different result of correlation with technology innovation and job creation. Therefore, previous research has insufficient to explain job creation by which in the technology commercialization stage and the job-specific workforce. Research design, data, and Methodology - This study investigated the impact of customized R&D support upon job creation by using questionnaires of SMEs R&D service of K-Institution from 2009 to 2013. In detail, we analyzed the relationship between the technology commercialization stage and the usefulness of customized R&D support. Also, we added the analyzed the relationship between the usefulness of customized R&D support and the job-specific workforce. Results - Research result, Job creation had a significant relation to the usefulness of customized R&D support in product design stage and mass production stage. Also, R&D worker and production worker correlated with the usefulness of customized R&D support. These results indicate the importance of hiring R&D workers and production workers at the higher technology readiness. Conclusions -Therefore, this study suggests some implications for the government's SMEs support policy and the solve employment problems such as youth unemployment.