• Title/Summary/Keyword: Context gathering

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Implementation of Storage Manager to Maintain Efficiently Stream Data in Ubiquitous Sensor Networks (유비쿼터스 센서 네트워크에서 스트림 데이터를 효율적으로 관리하는 저장 관리자 구현)

  • Lee, Su-An;Kim, Jin-Ho;Shin, Sung-Hyun;Nam, Si-Byung
    • Journal of the Institute of Electronics Engineers of Korea CI
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    • v.46 no.3
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    • pp.24-33
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    • 2009
  • Stream data, gathered from ubiquitous sensor networks, change continuously over time. Because they have quite different characteristics from traditional databases, we need new techniques for storing and querying/analyzing these stream data, which are research issues recently emerging. In this research, we implemented a storage manager gathering stream data and storing them into databases, which are sampled continuously from sensor networks. The storage manager cleans faulty data occurred in mobile sensors and it also reduces the size of stream data by merging repeatedly-sampled values into one and by employing the tilted time frame which stores stream data with several different sampling rates. In this research furthermore, we measured the performance of the storage manager in the context of a sensor network monitoring fires of a building. The experimental results reveal that the storage manager reduces significantly the size of storage spaces and it is effective to manage the data stream for real applications monitoring buildings and their fires.

GeoSensor Data Stream Processing System for u-GIS Computing (u-GIS 컴퓨팅을 위한 GeoSensor 데이터 스트림 처리 시스템)

  • Chung, Weon-Il;Shin, Soong-Sun;Back, Sung-Ha;Lee, Yeon;Lee, Dong-Wook;Kim, Kyung-Bae;Lee, Chung-Ho;Kim, Ju-Wan;Bae, Hae-Young
    • Journal of Korea Spatial Information System Society
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    • v.11 no.1
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    • pp.9-16
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    • 2009
  • In ubiquitous spatial computing environments, GeoSensor generates sensor data streams including spatial information as well as various conventional sensor data from RFID, WSN, Web CAM, Digital Camera, CCTV, and Telematics units. This GeoSensor enables the revitalization of various ubiquitous USN technologies and services on geographic information. In order to service the u-GIS applications based on GeoSensors, it is indispensable to efficiently process sensor data streams from GeoSensors of a wide area. In this paper, we propose a GeoSensor data stream processing system for u-GIS computing over real-time stream data from GeoSensors with geographic information. The proposed system provides efficient gathering, storing, and continuous query processing of GeoSensor data stream, and also makes it possible to develop diverse u-GIS applications meet each user requirements effectively.

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Heterogeneous Sensor Data Acquisition Model for Providing Healthcare Services in IoT Environments (IoT 환경에서 헬스케어 서비스 제공을 위한 이기종 센서데이터 수집 모델)

  • Park, Yoo Sang;Choi, Jong Sun;Choi, Jae Young
    • KIPS Transactions on Software and Data Engineering
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    • v.6 no.2
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    • pp.77-84
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    • 2017
  • In order to provide healthcare services based on context-awareness techniques in IoT environments, a system requires to collect user profile and environmental information. To collect environmental information, accessing sensor device and gathering sensor data should be proceeded. Although this process is necessary to build environmental information, there is no proper sensor data acquisition model. In this paper, we propose sensor data acquisition model that contains schema to connect each device and to collect various kinds of data from sensor device at one point. In experiment, we demonstrate sensor data acquisition procedures with a description following suggested scheme.

A qualitative study on women's daily lives and smartphone use -focusing on interviews with Chinese women in their twenties (여성의 일상생활과 스마트폰 이용에 관한 질적 연구 -20대 중국여성에 대한 심층인터뷰를 중심으로)

  • Zhang, Loushuangshuang;Na, Misu
    • Journal of Digital Convergence
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    • v.15 no.10
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    • pp.467-483
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    • 2017
  • The purpose of this study was to explore the role and meaning of smartphone in the context of daily life. This research focuses on the woman in twenties living in Hangzhou, China. As a result of research, smartphones affected the various parts of female users' daily lives such as consumption habits, ways of spending their times and ways of information gathering and communication. Nevertheless gender gap in smartphone use was much smaller than before in the quantitative aspect, women's use of smartphone in qualitative aspect such as the way of use and choice of contents showed previous gender role and gender value in society. Also, the results of the research, based on the case of China which emerges as a new IT powerhouse, have a significant implication for smartphone use in Korea.

A Study on Costume in Mural Painting of Xu Xianxiu Tomb in Northern Qi period (북제 서현수묘 벽화 복식 연구)

  • An, Bo Yeon;Hong, Na Young
    • Journal of the Korean Society of Costume
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    • v.66 no.1
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    • pp.122-134
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    • 2016
  • The Mural Tomb of Xu Xianxiu(AD 571), a high ranking official in Northern Qi period, is located in Taiyuan, Shanxi province, China. Despite having been raided, it was still discovered to contain over 530 pieces, such as artifacts and murals, in excellent state of preservation. These murals are noteworthy for their high level of detail compared to other murals from the same era, and are important for understanding the historical context of active East-West and Han-Hu cultural exchange in the $6^{th}$ to $7^{th}$ century. The murals of Xu Xianxiu's tomb depict round-collared and narrow-sleeved garments as well as straight collared robes typical of the Xianbei tribe's attire. Notable are the ermine fur overcoat and a headwear with flares on the left and right thought to be unique to the Xianbei. The wife and female servants show female attire of the Xianbei at the time; this attire can be characterized by narrow-sleeved long gowns and asymmetrical flying-bird buns. Despite the anti-Han policy of Northern Qi, influences such as the right sided gathering of the robes and embellished hair styles remain. The procession also depicts the three-cornered headdress and long-tailed hood of the Xianbei men, which have been recorded in documents. The large rounded pearl pattern containing the palmette, the divine animal, and bodhisattva's head motifs show the influence of the Western China [Xi'yu]. Considering that Northern Qi had more active interactions with the three ancient kingdoms of Korea than with the Southern Kingdoms[Nanchao], the findings of this study call for further research on the correlation between the attire of ancient Korea and Northern Qi.

Progress Analysis of Montreal Process Criteria and Indicators for Sustainable Forest Management in Terms of Data Availability and Applicability (지속가능(持續可能)한 산림경영(山林經營)을 위한 몬트리올 프로세스 기준(基準)과 지표(指標)의 가용성(可用性)과 적용성(適用性)에 대한 분석(分析))

  • Chong, Se-Kyung;Lee, Bong Soo;Kim, Wae Jung
    • Journal of Korean Society of Forest Science
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    • v.90 no.5
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    • pp.619-631
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    • 2001
  • Since the development of a new paradigm of sustainable forest management, concerns have been focused on how the sustainability of forests will be assessed and measured objectively. This study examined the conceptual displacement on what is sustainability of forests, and analyzed the progress made by international and regional initiatives on criteria and indicators for sustainable forest management in terms of comparability and compatibility. Regarding data availability and applicability of criteria and indicators for sustainable forest management, the data reports gathered from Montreal Process member countries were analyzed. Within this context, Korean case were examined, using all possible existing information sources such as Forest Statistics, on 6 items of concepts of criteria and indicators, degree of difficulties, measurement units, data availabilities, problems and needs of future improvements for data gathering. The study also analyzed the applicability of criteria and indicators for sustainable forest management.

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Factors Affecting an Individual's Intention to Disclose Personal Health Information: From Privacy Calculus Perspective (개인의 건강정보 제공의도에 영향을 미치는 요인: 프라이버시 계산 관점에서)

  • Jeong, Euiseon;Lee, Sang-Chul;Suh, Yung-Ho
    • Journal of Korean Society for Quality Management
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    • v.46 no.4
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    • pp.877-898
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    • 2018
  • Purpose: This study empirically examines the effect of Communication Privacy Management(CPM) factors and Privacy Calculus factors to the intention to disclose Personal Health Information(PHI) in the context of healthcare ecosystem. Also, it investigates the moderating effects of CPM factors in the relationship between privacy calculus variables and the intention to disclose PHI. Methods: We conducted scenario-based repeated-measures quasiexperiment and used total 364 samples for analysis. Confirmatory factor analysis and repeated-measure ANOVA were employed using SPSS 24.0. Results: All CPM factors, such as type of information, requesting purpose, and requesting stakeholder, directly influence to the intention to disclose PHI, whereas only the medium trust out of the Privacy Calculus factors has direct influence on the intention to disclose PHI. With regard to the moderating effects, the requesting stakeholder is the most influential and the information type is the least influential construct. Conclusion: The findings suggest that healthcare system should be designed to provide more definite and personalized benefits to customers to enhance social and individual benefits by getting more participation from customers. Also, it is desirable that the requesting stakeholder of PHI would be non-profit organizations such as hospital, government or public agencies to secure more willingness of PHI from people. Furthermore, it is implied that extensive information gathering and utilization, instead of excluding sensitive information or critical patients' records, is recommended which is substantial to invigorate the healthcare industry.

The Crisis of British Imperialism in Southeast Asia: The (Mis)Representation of the Indigenous in Clifford and Conrad

  • Kil, Hye Ryoung
    • Journal of English Language & Literature
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    • v.58 no.6
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    • pp.1041-1061
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    • 2012
  • In the late nineteenth century, British colonial activities became aggressive and annexationist in the tropics, including the Southeast Asian Archipelago, which reflected the historical circumstances of both increasing resistance from the indigenous and severe competition among European powers. Interestingly, the change in English colonial policy toward an annexationist or imperialist vision adopted the motto of a civilizing mission, which was founded on the anthropological assumption that the white English were civilized, while the non-white indigenous were savage. The assumption developed into colonial discourse through systematic gathering of anthropological knowledge about the peripheries of the Empire. The knowledge system was flawed, which stressed the differences of the peripheral populations from the English and served as an inverted discourse on the Imperial Self rather than the description of the Other. Furthermore, the natives were heterogeneous, which rendered indistinct the racial and cultural differences between the English and the natives. Still, the aboriginals called Malays, who were comprised of many ethnic subgroups, needed to be deemed savage or inferior by the English in order to justify the English civilizing work or imperial ambition. Put differently, the representation of the English as civilized necessitated the (mis)representation of the natives as savage. In this context, Clifford's works contribute to systematic misrepresentation of the Malays, on which colonial discourse is founded, though not without self-contradiction. On the other hand, Conrad's novels that are set in the Malay Archipelago resort to a strategic misrepresentation that reveals the relativity of the discourse. Exploring the dilemma of denationalization to various degrees, Conrad's Malay texts problematize the (mis)representation of the indigenous as inferior, which is the basis of English claim to superiority.

A Qualification Study on the Repeated Self-injury of Adolescent (임상군 청소년의 반복적인 자해 경험에 대한 연구)

  • Yun-Ju Lee;Kye-Seong Lee
    • Journal of Industrial Convergence
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    • v.22 no.8
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    • pp.85-93
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    • 2024
  • The purpose of this study is to understand the meaning and context of adolescents' experiences of repetitive self-injury and to suggest that self-injurious behavior has characteristics of addictive disorder. In-depth interviews were conducted from December 26, 2022 to January 1, 2023 by using a semi-structured questionnaire for six adolescents who are attending outpatient psychiatirc clinic showing repetitive behavior of self-injury. The data were analyzed using Colaizzi's phenomeno-logical method focused on deriving the common attributes of all participants. We classified derived common attributes in the aspect of the diagnostic criteria of DSM-5 addictive disorder. 21 sub-themes and 6 categories were derived by gathering common meanings from 268 semantic units. The six categories of this study were raging pain, a wound that cannot not be revealed, extreme pores being pierced, continuous longing for self-harm, process of moving forward with pain. In the future, there is a need to develop various systematic intervention programs, including effective coping methods to help clinical adolescents' recover from self-injury, and further evaluation and research on them.

The Concept of 'Risk' and the Proportionality Review of Infectious Disease Prevention Measures (감염병 팬데믹에서의 '리스크' 개념과 방역조치에 대한 비례성 심사의 구체화 -집합제한조치에 대한 국내외 판결을 중심으로-)

  • You, Kihoon
    • The Korean Society of Law and Medicine
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    • v.23 no.3
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    • pp.139-207
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    • 2022
  • As various state restrictions on individual freedom were imposed during the COVID-19 pandemic, concerns have been raised that excessive infringements on fundamental rights were indiscriminately permitted based on the public interest of preventing infectious diseases. Therefore, the question of how to set acceptable limits of liberty restrictions on individuals has emerged. However, since the phenomenon of infections spreading to the population is only predicted statistically, how to deal with the risk of the infected individual as a subject of legal analysis has become a problem. In the absence of a theoretical framework of legal analysis of risk, the risk of infected individuals during the pandemic was not analyzed strictly, and proportionality review of infection prevention measures was often only an abstract comparison of the importance of public interest and individual rights. Therefore, this research aims to conduct a theoretical review on how risk can be conceptualized legally in a public health crisis, and to develop a theoretical framework for proportionality review of the risk of liberty-limiting measures during a pandemic. Chapter 2 analyzes the legal philosophical concepts of risk, which are the basis for liberty restrictions during a public health crisis, and applies and extends them to the pandemic. Chapter 3 reviews previous studies related to liberty restriction measures in the context of the COVID-19 pandemic, and points out they have a limitation that specific criteria for the proportionality review of public health measures in the pandemic have not been presented. Accordingly, Chapter 3 specifies the methodological framework for proportionality review, referring to the theoretical discussion on risks in Chapter 2. Chapter 4 reviews the legitimacy of gathering restriction orders, applying the theoretical discussion in Chapter 2 and the criteria for proportionality review established in Chapter 3. In particular, Section 4 examines logic of proportionality review in judicial precedents over the ban on gathering restrictions implemented in the COVID-19 pandemic. In analyzing the precedents, the logic of proportionality review in each case is critically reviewed and reconstructed based on the theoretical framework presented in this research.