정보기술의 발전에 따른 정보윤리의식의 확립방안

이경호,Lee, Kyung-Ho 한국도서관정보학회 1998 한국도서관정보학회지 Vol.28 No.-

This study aims to analyze categorically social and ethical problems related to the recent development of information technology and, then to propose measures to prevent the spread of the problems. For this purpose, the study examines the information ethics and information-related ethical education in some of the advanced countries and suggests a measure to establish a desirable information ethics which, through the roles of information experts can increase the convenience of the information society. Particularly, information should have been used in the right manner but it is not. This has caused legal and technical problems and now there is a need for cultural, societal and ethical changes. In fact, new technology and legal - institutional devices may solve those problems caused by the development. However, we should recognize the importance of human in life by taking expected social efforts into broader consideration. it is to be desired, above all, that ethical problems should be discussed toward respecting the interests of both indivisuals and society with the protection of the illegal circulation of unlawful and unhealthy information. Consequently, in order to solve those problems, it is required that remove the negative effects both information providers and users themselves through the enactment and enforcement of information ethics doctrine. The reason is that professionals' decision may be more specific than others. Therefore, specialists who work information fields including computers should reevaluate the a n.0, pplication of ethics and make new regulations. By doing this the rightful advancement of information culture can be accomplishmented and responsible infortizen can be created. Futhermore, primary schools and other institutions, which train technical communication specialists, should teach technical skills, computers, as well as ethnological consciousness when they use information mediums.

지리도면의 자동 벡터화를 위한 영상 세선화 알고리즘의 체계적인 성능평가

이경호,김경호,조성배,최윤철,Lee, Kyung-Ho,Kim, Kyong-Ho,Cho, Sung-Bae,Choy, Yoon-Chul 한국정보처리학회 1997 정보처리논문지 Vol.4 No.12

최근에 사회 여러 분야에 걸쳐서 지리정보를 효과적으로 저장하여 검색할 수 있도록 하는 지리정보시스템에 대한 관심이 고조되고 있다. 이를 구축하는데 가장 많은 시간과 비용이 소요되는 부분은 지리정보의 입력 부분으로 효율적인 입력 방법을 선택하는 것이 매우 중요하다. 여기에서 입력 영상으로부터 한 화소 두께의 골격선을 추출하는 영상 세선화 알고리즘은 전처리 단계로서 필수적이라 할 수 있다. 본 논문에서는 그동안 주로 문 자 인식 등의 영상처리를 위해 발표된 영상 세선화 알고리즘들 중에서 대표적인 알고리즘을 등고선도와 지적도 및 상하수도 등의 지리도면에 적용하여 비교 분석함으로써 각각의 지리도면의 자동 벡터화에 적합한 알고리즘을 제시하고자 한다. 여러가지 평가 기준에 의해 실험한 결과, 등고선도의 경우에는 Arcelli의 방법, 지적도는 Holt의 방법, 그리고 상하수도는 Chen의 방법이 각각 적합하다는 것을 알 수 있었다. In a variety of fields, recently, there is a growing interest in Geographic Information System which facilitates efficient storage and retrieval of geographic information. It is of extreme importance to make a good choice of efficient input method, because it takes the most of the lime and cost in constructing a GIS. Among several steps, thinning input image to produce skeleton of unit width is prerequisite to the automatic input or geographic maps. In this paper, we systematically evaluate the performance of representative thinning algorithms in geographic maps such as contour, cadastral, and water and sewer maps, and suggest appropriate algorithms for the maps, respectively. A thorough experiment indicates that Arcelli's method is best for contour maps, Holt's method for cadastral maps, and Chen's method for water and sewer maps.

KORMARC 245필드 입력형식의 문제점과 개선 방안 - MARC 21의 입력설계 원칙에 근거하여 -

이경호,Lee, Kyung-Ho 한국도서관정보학회 2009 한국도서관정보학회지 Vol.40 No.1

한국도서관협회에서 "한국목록규칙 제4판"(KCR4)을 2003년 발행하고, 이를 근거로 2006년에는 국립중앙도서관에서 "한국문헌자동화목록형식-통합서지용"을 발행하였다. 그리고 많은 교육기관과 도서관에서 이를 근거로 목록을 하고 있다. 그러나 이 개정된 "한국목록규칙 제4판"과 "한국문헌자동화 목록형식"에서도 많은 오류가 발견되고 있는바, 이에 대한 시정이 요구되고 있다. 이에 본 연구는 자동화목록에서 가장 중심이 되고 가장 중요한 부분을 차지하고 있는 245필드의 기술형식에 대하여 KCR4판에 나타난 문제점을 지적한다. 그리고 이를 근거로 KORMARC의 245필드 입력형식 가운데 원괄호를 사용하여 기술하는 형식, 식별기호 사용법, 권차의 기술법, 책임표시사항의 기술법, 그리고 4인 이상 합저의 기술법에 대해 입력형식의 개선방안을 제안한다. The Korean Library Association has developed the Korean Cataloging Rules, fourth edition(KCR4) in 2003 and the National Library of Korea developed integrated version of KORMARC formats in 2006 on the basis of KCR4. Many educational institutions and libraries are currently cataloging based on KORMARC. Nevertheless, we have encountered many problems on KCR4 and KORMARC formats which needed to be modified. This study is aimed at pointing out the problems of KCR4 in describing 245 field which has a crucial and important role. Therefore, this study proposes the improvement methods of the use of parenthesis and subfield code in 245 field, and presents a description format of volume number, statement of responsibility and joint works including more than four persons.

RDA에 바탕한 저작의 집중화 방안 연구 - KORMARC의 24X필드 기술을 중심으로 -

이경호,Lee, Kyung-Ho 한국도서관정보학회 2014 한국도서관정보학회지 Vol.45 No.1

본 연구는 서지기술의 국제적 표준으로 등장한 RDA의 설계취지를 반영하여 KORMARC의 24X 필드를 중심으로 정보검색결과 저작의 집중화 방안에 대해 다룬다. 이를 위해 한국문헌자동화 목록형식인 KORMARC 시스템에서 24X필드의 데이터 입력방법을 분석하여 문제점을 밝혀내고, 이를 해결할 수 있는 방안을 제안한다. 저작의 집중화 방안에는 (1) 관제표기 방법의 개선, (2) 통일표제 사용방법의 개선, (3) 부호가 사용된 표제의 기술방법 개선 등이다. 이를 통해, 이용자들은 MARC 데이터베이스로부터 원하는 정보를 전방일치 검색으로 효과적으로 검색 할 수 있으며, 검색결과가 집중화되어 자료를 식별하는데 보다 용이할 수 있음을 밝혀냈다. This study makes some suggestions to cluster works from the search result of library databases. Specifically, the author suggests modifying the current practices and rules of KORMARC 24X field based on intent of RDA, which is the new cataloging standard. After identifying some problems in entering bibliographic data into 24X field, the author proposes solutions to such problems. The solutions include improvements in (1) Goanje description (관제기술), (2) use of uniform title, and (3) processing of marks, etc. The study demonstrates that users can conduct a fronted keyword searching effectively and identify the relevant bibliographic records easily from the clustered search results.

타액선질환에 대한 타액선조영상과 스캔상의 비교연구

이경호,안형규,Lee Kyung-Ho,Ahn Hyung-Kyu 대한영상치의학회 1987 Imaging Science in Dentistry Vol.17 No.1

The purpose of this study was to aid in diagnosis of salivary gland disease by comparing the sialogram with the scintigram. In this study, 47 patients (52 glands) who had taken the sialography and the scintigraphy were examined. The result of two methods was compared with the clinical and operative diagnosis. The following results are obtained. 1. In inflammatory diseases of the salivary gland, the scintigraphy can be a valuable substitution for a sialography. 2. In inflammatory diseases of the salivary gland, we can get more informations in case of the combined use of the sialography and the scintigraphy. 3. In tumorous lesion of the salivary gland, the sialography is superior to the scintigraphy. But both methods are less valuable in diagnosing the extraglandular tumors.

선박 안전성 평가 및 구난지원 시스템

이경호,이동곤,Kyung-Ho Lee,Dong-Kon Lee 대한조선학회 1999 大韓造船學會 論文集 Vol.36 No.3

선박의 사고는 인명과 재산의 손실뿐만 아니라 사고 선박으로부터 유출되는 기름과 유해한 산적 화물에 의한 환경 오염을 초래하기 때문에 사고를 미연에 방지하는 것 뿐 만 아니라, 사고가 발생하였을 때 이에 신속히 대처함으로써 오명을 최소화하고 2차 사고의 위험을 줄이는 것이 매우 중요한 문제이다. 그러나 지금까지의 기술적 지원이 결여된 경험위주의 대처 방법으로는 사고선박에 대한 구난을 안전하고 신속하게 처리하기가 쉽지 않다. 본 연구에서는 체계적이고 과학적인 구난지원 도구를 개발하여 이를 사고 현장의 구난지원 작업에 투입하고자 한다. 이를 위하여 구난지원 체계를 구축하고, 프로토타입 시스템을 개발하여 사고선박에 대한 안전하고 신속한 구난지원 가능성을 검토하였다. Marine casualties of dangerous cargo carriers lead to not only the loss of human life and properties, but also marine pollution caused by spilled oil and hazardous cargo. So the prevention of marine casualties and emergence response to minimize pollution are very important problems to be settled. But until now, most of salvage assistance jobs have been done based on rule of thumb without any technical support. It is not easy to cope with the incidents safely and rapidly under the current situation. The purpose of this paper is to develop a systematic and engineering salvage assistance tool available in the casualty sites. This paper contains the construction of salvage system, classification of technical items, and prototype system for the safety assessment. The developed system enable a salvage engineer in his/her salvaging jobs to perform safely and promptly.

망막대형혈관환자에서 발생한 중심장액맥락망막병증

이경호,오재령,김성우,허걸,Kyung Ho Lee,Jaeryung Oh,Seong-Woo Kim,Kuhl Huh 대한안과학회 2013 대한안과학회지 Vol.54 No.7

Purpose: The relationship between central serous chorioretinopathy associated with retinal macrovessel remains controversial due to its rareness. We report a case of central serous chorioretinopathy diagnosed by spectral domain optical coherence tomography (SD-OCT) in a patient with a retinal macrovessel that improved spontaneously. Case summary: A 36-year-old healthy male patient visited our clinic complaining of blurred vision in his left eye. Fundus examination of the left eye revealed central serous chorioretinopathy with retinal macrovessel in the macular area. Fundus fluorescent angiography showed an ink blot-shaped leakage, which was not clearly distinguishable due to a retinal macrovessel. Serous retinal detachment under the neurosensory retina was identified on OCT. A small pigment epithelial detachment was observed and considered as a leaking point. However, no visible exudates appeared to be leaking around the retinal macrovessel. Conclusions: Central serous chorioretinopathy with a retinal macrovessel in a Korean patient was evaluated by SD-OCT. When compared with typical cases, no differences were observed in this case and no significant associations between central serous chorioretinopathy and retinal macrovessel were shown.

간헐외사시에서 1시간 또는 2시간으로 단축한 눈가림의 효과

이경호,서영우,조윤애,Kyung Ho Lee,Young Woo Suh,PhD,Yoon Ae Cho,PhD 대한안과학회 2014 대한안과학회지 Vol.55 No.4

Purpose: To evaluate the compliance level of therapy and the change in exo-angle after 1 or 2 hours of part-time occlusion therapy in intermittent exotropia. Methods: This retrospective study included 97 patients with intermittent exotropia who were followed-up for more than 6 months after their initial visit. We evaluated the exo-angle and prescribed either 1 hour or 2 hours of part-time occlusion therapy for the fixating eye. After 6 months, the exo-angle was reevaluated and compliance was examined. Patients were divided into 2 groups according to the occlusion therapy time: the 1-hour patching group (33 patients) and the 2-hour patching group (64 patients). Compliance and deviation angle were retrospectively reviewed and compared between the 2 groups. We evaluated the exo-angle of patients with compliance over 50% (1-hour patching group (31 patients), 2-hour patching group (51 patients)). Results: The mean exo-angles on the first visit were 22.61 ± 5.78 PD (prism diopters) at distance and 22.88 ± 8.11 PD at close-range in the 1-hour patching group, and 26.17 ± 4.55 PD at distance and 25.27 ± 8.54 PD at close-range in the 2-hour patching group. The proportion of patients with compliance over 50% was higher in the 1-hour patching group (93.94%) than in the 2-hour patching group (79.69%, <em>p</em> = 0.013). There were significant decreases in distant and close- range deviation angles after part-time occlusion in patients with compliance over 50% in both groups (1-hour patching group distant<em> p </em>= 0.042, close-range <em>p</em> = 0.002; 2-hour patching group distant <em>p</em> < 0.001, close-range <em>p</em> < 0.001). The magnitude of deviation angle decrease was not statistically significant between the 2 groups (ANCOVA; distant p = 0.461, near <em>p</em> = 0.761). Conclusions: One or 2 hours of part-time occlusion therapy in intermittent exotropia provided beneficial effects, including decreasing the deviation angle. The magnitude of deviation angle decrease, however, was not different between the 2 times of therapy. Compliance was higher in the 1-hour part-time occlusion therapy group. Therefore, 1-hour part-time occlusion therapy could be effective in patients with poor cooperation. J Korean Ophthalmol Soc 2014;55(4):585-589

콜론분류법에 바탕한 자동분류시스템의 개발에 관한 연구 - 농학 및 의학 전문도서관을 사레로 -

이경호,Lee Kyung-Ho 한국문헌정보학회 1992 한국문헌정보학회지 Vol.23 No.-

The purpose of this study is (1) to design and test a database which can be automatically classified, and (2) to generate automatic classification number by processing the keywords in titles using the code combination method of Colon Classification(CC) as well as an automatic recognition of subjects in order to develop an automatic classification system (Auto BC System) based on CC which can be applied to any research library. To conduct this study, 1,510 words in the fields of agricultrue and medicine were selected, analized in terms of [P], [M], [E], [S], [T] employed in CC, and included in a database for classification. For the above-mentioned subject fields, the principle of an automatic classification was specified in order to generate automatic classification codes as well as to perform an automatic subject recognition of the titles included. Whenever necessary, editing, deleting, appending and reindexing of a database can be made in this automatic classification system. Appendix 1 shows the result of the automatic classification of books in the fields of agriculture and medicine. The results of the study are summarized below. 1. The classification number for the title of a book can be automatically generated by using the facet principles of Colon Classification. 2. The automatic subject recognition of a book is achieved by designing a database making use of a globe-principle, and by specifying the subject field for each word. 3. The automatic subject-recognition of input data is achieved by measuring the number of searched words by each subject field. 4. The combination of classification numbers is achieved by flowcharting of classification formular of each subject field. 5. The efficient control of classification numbers is achieved by designing control codes on the database for classification. 6. The automatic classification by means of Auto BC has been proved to be successful in the research library concentrating on a Single field. The general library may have some problem in employing this system. The automatic classification through Auto BC has the following advantages: 1. Speed of the classification process can be improve. 2. The revision or updating of classification schemes can be facilitated. 3. Multiple concepts can be expressed in a single classification code. 4. The consistency of classification can be achieved with the classification formular rather than the classifier's subjective judgement. 5. A user's retrieving process can be made after combining the classification numbers through keywords relating to the material to be searched. 6. The materials can be classified by a librarian without subject backgrounds. 7. The large body of materials can be quickly classified by means of a machine processing. 8. This automatic classification is expected to make a good contribution to design of the total system for library operations. 9. The information flow among libraries can be promoted owing to the use of the same program for the automatic classification.

Added Value of Coronal Reformations for Duty Radiologists and for Referring Physicians or Surgeons in the CT Diagnosis of Acute Appendicitis

이경호,김영훈,Seokyung Hahn,Kyung Won Lee,이학종,Tae Jung Kim,강성범,Joong Ho Shin,Byung Joo Park 대한영상의학회 2006 Korean Journal of Radiology Vol.7 No.2

Objective: To assess the added value of coronal reformation for radiologists and for referring physicians or surgeons in the CT diagnosis of acute appendicitis. Materials and Methods: Contrast-enhanced CT was performed using 16- detector-row scanners in 110 patients, 46 of whom had appendicitis. Transverse (5-mm thickness, 4-mm increment), coronal (5-mm thickness, 4-mm increment), and combined transverse and coronal sections were interpreted by four radiologists, two surgeons and two emergency physicians. The area under the receiver operating characteristic curve (Az value), sensitivity, specificity (McNemar test), diagnostic confidence and appendiceal visualization (Wilcoxon signed rank test) were compared. Results: For radiologists, the additional coronal sections tended to increase the Az value (0.972 vs. 0.986, p = 0.076) and pooled sensitivity (92% [95% CI: 88, 96] vs. 96% [93, 99]), and enhanced appendiceal visualization in true-positive cases (p = 0.031). For non-radiologists, no such enhancement was observed, and the confidence for excluding acute appendicitis declined (p = 0.013). Coronal sections alone were inferior to transverse sections for diagnostic confidence as well as appendiceal visualization for each reader group studied (p < 0.05). Conclusion: The added value of coronal reformation is more apparent for radiologists compared to referring physicians or surgeons in the CT diagnosis of acute appendicitis.