• The Transactions of the Korea Information Processing Society
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• v.6 no.4
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• pp.851-867
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• 1999

Numerous proposals for extending the relational data model as well as conceptual and object-oriented data models have been suggested. However, there has been relatively less research in the area of defining segmented storage structure and data migration strategies for temporal data. This paper presents the segmented storage structure in order to increment search performance and the two data migration strategies for segmented storage structure. this paper presents the two data migration strategies : the migration strategy by Time granularity, the migration strategy by LST-GET. In the migration strategy by Time Granularity, the dividing time point to assign the entity versions to the past segment, the current segment, and future segment is defined and the searching and moving process for data validity at a granularity level are described. In the migration strategy by LST-GET, we describe the process how to compute the value of dividing criterion. searching and moving processes are described for migration on the future segment and the current segment and entity versions 새 assign on each segment are defined. We simulate the search performance of the segmented storage structure in order to compare it with conventional storage structure in relational database system. And extensive simulation studies are performed in order to compare the search performance of the migration strategies with the segmented storage structure.

• Journal of KIISE:Computing Practices and Letters
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• v.16 no.4
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• pp.442-446
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• 2010

In this paper we propose an indexing method supporting the browsing scheme for effective image search on large photo database. The proposed method is based on M-tree, a representative indexing scheme on matrix space. While M-tree focuses on the searching efficiency by pruning, it did not consider browsing efficiency directly. This paper proposes node selection method, node splitting method and node splitting conditions for browsing efficiency. According to test results, node cohesion and clustering precision improved 1.5 and twice the original respectively and searching speed also increased twice the original speed.

• The KIPS Transactions:PartD
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• v.9D no.6
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• pp.1025-1042
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• 2002

The goal of this study is to generate a structured document which improves the performance of an information retrieval system by using thesaurus, information on relations between words (terms), and to study on the technique for searching this structured document. In order to accomplish this goal, we propose a DODI (Depth -Oriented Decomposition Index) technique for the structured document and an algorithm to search for related information efficient]y through this index technique that uses a thesaurus. We establish a storage system by which the structured document generated by this index technique is saved in a database through OpenXML and XML documents are generated through ForXML methods.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.30 no.10C
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• pp.983-991
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• 2005

Human faces are commonly found in a video such as a drama and provide useful information for video content analysis. Therefore, face detection plays an important role in applications such as face recognition, and face image database management. In this paper, we propose a face detection algorithm based on pre-processing of scene change detection for indexing and cast searching in video. The proposed algorithm consists of three stages: scene change detection stage, face region detection stage, and eyes and mouth detection stage. Experimental results show that the proposed algorithm can detect faces successfully over a wide range of facial variations in scale, rotation, pose, and position, and the performance is improved by $24\%$with profile images comparing with conventional methods using color components.

• Journal of Oriental Neuropsychiatry
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• v.22 no.4
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• pp.31-39
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• 2011

Objectives : This study aimed to investigate frequently used herbal materials among herbal prescription for depression focusing on randomized controlled trial. Methods : Every article relevant to depression was initially obtained from China National Infrastructure(CNKI), Korean database and book hand-searching. Searching keywords were 'depression', 'herbal medicine' and 'randomized controllled trial(RCT)'. Results : Among comorbidity with depression, the most accompanied disease was that of circulatory system. Among sixty-five articles, depression with cerebral vascular disease was twenty-eight. Article about mood disorder was twenty-four. High frequently used herbal materials were Bupleuri Radix(41times), Curcumae Radix(34 times), Acori Graminei Rhizoma and Cnidii Rhizoma(24 times). Conclusions : According to this study, we could know select frequent-used herbal medicine. In a clinical treatment, herbal materials can be added herbal prescription related to depression. As these results, it can be helpful to develop new drugs.

• The Journal of Korean Obstetrics and Gynecology
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• v.30 no.3
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• pp.79-91
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• 2017

Objectives: The purpose of this systematic review is to overview and evaluate the effect on postpartum hypogalactia after acupuncture treatment. Methods: Relevant randomized controlled trials (RCTs) were identified by database searches in Embase, Pubmed, CENTRAL, CNKI, KISS. Searching keywords were "Hypogalactia" or "Hypolactaion" and "Acupuncture". After searching qualified articles, we independently assessed the risk of bias according to the Cochrane Rob criteria. Results: Among the 81 articles five RCTs were finally selected. Four of the selected were statistically significant. One of them was not statistically significant because it was comparative study of chinese medicine and acupuncture treatment. The quality of the evidence for specific comparisons ranged from low to high. Conclusions: Our systematic review found encouraging. Acupuncture treatment would be effective way to increase insufficient milk supply on postpartum hypogalactia.

• Journal of Korean Medicine Rehabilitation
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• v.33 no.1
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• pp.31-45
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• 2023

Objectives The aim of this study is to find the future perspective through analyzing the trends of acupuncture treatment for gouty arthritis (GA) by searching the China National Knowledge Infrastructure (CNKI) and PubMed. Methods We searched clinical studies about acupuncture treatment for GA through the searching the electronic database of CNKI and PubMed. We analyzed the characteristics of selected studies according to research design, sample size, publication year, treatment methods, evaluation criteria and adverse events. Results Twenty-nine studies published from January 1, 2015 to July 1, 2022 were selected. They consisted of 25 randomized controlled trials, 3 non-randomized controlled trials, and 1 case reports. In these studies, several types of acupuncture treatments were performed and the most treatment was conventional acupuncture treatment with fine needles. The most commonly used evaluation outcome was effective rate. Conclusions Through this result, the Chinese literature positively reported the effect of acupuncture on GA. However, high-quality evaluation by rigorous research using well-designed and more objective outcomes is required.

• Journal of Korean Medicine Rehabilitation
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• v.33 no.4
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• pp.95-107
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• 2023

Objectives The purpose of this study is to help find the future prospects by analyzing the trends of scalp acupuncture treatment for Parkinson's disease (PD) by searching the China National Knowledge Infrastructure (CNKI) and PubMed. Methods We searched clinical studies adopting scalp acupuncture treatment as a main intervention for PD through the searching the database of CNKI and PubMed. We analyzed the characteristics of selected studies especially according to study design, publication year, sample size, treatment period, treatment methods, outcomes criteria and adverse events. Results Twelve randomized controlled trials studies published from January 1, 2012 to July 1, 2023 were selected. In these studies, two types of scalp acupuncture treatments were performed and the most common treatment was Jiao shunfa's scalp acupuncture with fine needles. The most commonly used acupoints were "Chorea tremor control area", 風池 (GB20), 四神聰 (EX-HN1) and 百會 (GV20). The most commonly used outcome measures were effective rate, unified Parkinson disease rating scale (UPDRS) and UPDRS-III. Conclusions Through these results, we found that the Chinese review literature positively reported the effects of scalp acupuncture on PD. However, more high-quality evaluation using the well-designed studies including more objective outcomes should be required.

• Journal of the Korean Wood Science and Technology
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• v.18 no.2
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• pp.49-66
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• 1990

In order to identify an unknown wood sample native to Korea. the softwood databases(KSWCHUN; Korean SoftWood CHUN) and the hardwood databases(KHWCHUN; Korean HardWood CHUN) had been built. and the new computer searching programs(IDINEX; IDentification INformation EXpress) has been written in Turbo Pascal(V.5.0) and in Macro Assembly(V.5.0). The characters of the data were based on the 74 features of softwood and on the 148 features of hardwood which are a part of new "IAWA list of microscopic features for hardwood identification" published in 1989. For the purpose of this investigation the wood anatomical nature of 25 species of softwood(13 genera of 5 families) and of 112 species of hardwood(57 genera of 31 families) were observed under a scanning electron microscope and light microscope. and a lot of literature used. The IDINEX programs are based on edge-punched card keys. with several improvements. The maximum number of features in the IDINEX is 229. but that is fixed for a given database. Large numbers of taxa are handled efficiently and new taxa easily added. A search may be based on sequence numbers of features. Comparisons are made sequentially by feature and taxon using the entire suite of features specified to produce the list of possible matching taxa. The results are followings. (1) The databases of Korean wood and the searching programs(IDINEX) had been built. (2) The databases of Korean wood could be an information to search an unknown wood. (3) The databases would be valuable. for the new features, which were not mentioned in Korean wood up to the present. were observed in details. (4) The ultrastructures of the cell walls(warty layer) and crystals observed under a scanning electron microscope will be helpful to search an unknown wood in particular. (5) The searching process is more quick and accurate than the others. 6) We can obtain the information on the differences of a species from the other and search an unknown wood using probability. in IDINEX, (7) The IDINEX will be utilized to identify and classify an animal life, vegetable world, mineral kingdom, and so on.

• Journal of the Korean Society for Library and Information Science
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• v.50 no.4
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• pp.55-75
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• 2016

We analyzed the characteristics of the physicians preferred information sources and barriers through in-depth interviews. Information searches for patient treatment were subdivided into deciding patient treatment methods, understanding the latest treatment trends, and preparing presentation materials for conferences. The variables that affected the search behaviors were identified as being background knowledge on the topic, clinical experience, job title, search skills, user training, and familiarity with the library homepage. PubMed was the most preferred choice because of users' familiarity, reliability, and the vastness of information; Google was also used frequently for easy access and fast search result. The accuracy and the recentness of information were the most significant criteria. Easy interface and convenient access were also considered important due to physicians' time constraints. Searching obstacles were divided into difficulty of searching system, unfamiliar term, too vast resources, difficulty to get fulltext articles and complex advanced search features. The results of this study can be utilized as a basis for improving information service of library and curriculum development for physicians.