• Proceedings of the Korean Institute of Intelligent Systems Conference
• /
• 1998.10a
• /
• pp.70-76
• /
• 1998

The aim of this paper is to study and find characterizations of quasi-fuzzy continuous and quasi-fuzzy closed mappings between fuzzy bitopological spaces. The notion of quasi-fuzzy open sets is used to defined quasi-fuzzy Ti (i=0, 1, 2) and quasi-fuzzy regular spaces and these spaces are investigated under quasi-fuzzy continuity. Finally, quasi-fuzzy connectednss is introduced and studied to some extent.

• Proceeding of Spring/Autumn Annual Conference of KHA
• /
• 2011.04a
• /
• pp.141-146
• /
• 2011

The purpose of this study is to investigate the planning of the community spaces for sustainable apartment complex under the aging society. For this, it is needed to identify the practical meaning of community spaces for elderly residents. In many cases, existing apartments' community spaces have been designed without considering the elderly. In order to develop successful environment for aging society, it is necessary for us to precisely review how elderly residents are changing their needs. Survey and depth-interview methods were used for data collection of this study. This study was performed in the five subject apartments located in Haeundae new town, Busan. In planning of community spaces for sustainable apartment complex in the aging society, 1) The population of the elderly in apartment complex has been increased with progress of the aging society, and it has been necessary to enlarge and consider the aging-friendly community space. 2) When the community space is located in a good accessibility, visual openness, multipurpose composition and the center of complex, it was investigated that the degree of its usage was high. 3) Common apartment complex for the elderly was deficient, and the composition and the layout of community spaces were needed, which included sports facility, spaces for leisure culture and study. This study could be utilized as basic data for designing community spaces in apartments from the perspective of sustainable community.

• Journal of the Korean Mathematical Society
• /
• v.52 no.3
• /
• pp.587-601
• /
• 2015

In this paper, we investigate the $\mathbb{R}$-complex Hermitian Finsler spaces, emphasizing the differences that separate them from the complex Finsler spaces. The tools used in this study are the Chern-Finsler and Berwald connections. By means of these connections, some classes of the $\mathbb{R}$-complex Hermitian Finsler spaces are defined, (e.g. weakly K$\ddot{a}$hler, K$\ddot{a}$hler, strongly K$\ddot{a}$hler). Here the notions of K$\ddot{a}$hler and strongly K$\ddot{a}$hler do not coincide, unlike the complex Finsler case. Also, some kinds of Berwald notions for such spaces are introduced. A special approach is devoted to obtain the equivalence conditions for an $\mathbb{R}$-complex Hermitian Finsler space to become a weakly Berwald or Berwald. Finally, we obtain the conditions under which an $\mathbb{R}$-complex Hermitian Finsler space with Randers metric is Berwald. We get some clear examples which illustrate the interest for this work.

• Journal of Korea Multimedia Society
• /
• v.11 no.5
• /
• pp.610-622
• /
• 2008

Moving object segmentation is an essential technique for various video surveillance applications. The result of moving object segmentation often contains shadow regions caused by the color difference of shadow pixels. Hence, moving object segmentation is usually followed by a shadow elimination process to remove the false detection results. The common assumption adopted in previous works is that, under the illumination variation, the value of chromaticity components are preserved while the value of intensity component is changed. Hence, color transforms which separates luminance component and chromaticity component are usually utilized to remove shadow pixels. In this paper, various color spaces (YCbCr, HSI, normalized rgb, Yxy, Lab, c1c2c3) are examined to find the most appropriate color space for shadow elimination. So far, there have been some research efforts to compare the influence of various color spaces for shadow elimination. However, previous efforts are somewhat insufficient to compare the color distortions under illumination change in diverse color spaces, since they used a specific shadow elimination scheme or different thresholds for different color spaces. In this paper, to relieve the limitations of previous works, (1) the amount of gradients in shadow boundaries drawn to uniform colored regions are examined only for chromaticity components to compare the color distortion under illumination change and (2) the accuracy of background subtraction are analyzed via RoC curves to compare different color spaces without the problem of threshold level selection. Through experiments on real video sequences, YCbCr and normalized rgb color spaces showed good results for shadow elimination among various color spaces used for the experiments.

• Journal of the Korean Institute of Landscape Architecture
• /
• v.16 no.2
• /
• pp.23-41
• /
• 1988

Environmental design pattern of the nine Small Urban Spaces at C.B.D. in City of Seoul are surveyed and analyzed for user's satisfaction and behavior under the environmental design evaluation by using Chrisopher Alexander's Pattern Language. Small Urban Spaces as a part of streetscape are formed by physical factors as well as visual environment and interacting user's behavior. Therefore, user's satisfacuion and behavior at the nine Urban Small Spaces were investigated under the further search for some possibilities of a pplication of those Pattern Languages. A pattern language has a structure of a network. It is used in sequence, going through the patterns, moving always from large patterns to smaller, always from the ones which create comes simply from the obsernation that most of the wonderful places of the city were not made by architects but by the people. It defines the limited number of arrangements of spaces that make sense in any given culture. And it actually gives us the power to generate these coherent arrangement of space. As a results, 'Plazl', 'Seats' and 'Accessibility' related design patterns are highly evaluated by Pattern Frequency, Pattern Interaction and their Composition ranks, thus reconfirm Whyte's Praise of urban Small Spaces in our inner city design environments. According to the multiple regression analysis of user's evaluation, the environmental functins related to the satisfaction were 'Plaza', 'Accessibility' and 'Paving'. According to the free response, user's prefer such visually pleasing environmental design object as 'Waterscape' and 'Setting'. In addition to, the basic needs in Urban Small Spaces are amenity facilities as bench, drinking water and shade for rest.

• Journal of Korea Multimedia Society
• /
• v.19 no.10
• /
• pp.1782-1791
• /
• 2016

Various color spaces such as RGB, HSV, log-chromaticity have been used in the field of person re-identification. However, not enough studies have been done to find suitable color space for the re-identification. This paper reviews color invariance of color spaces by diagonal model and explores the suitability of each color space in the application of person re-identification. It also proposes a method for person re-identification based on a histogram refinement technique and some fusion strategies of color spaces. Two public datasets (ALOI and ImageLab) were used for the suitability test on color space and the ImageLab dataset was used for evaluating the feasibility of the proposed method for person re-identification. Experimental results show that RGB and HSV are more suitable for the re-identification problem than other color spaces such as normalized RGB and log-chromaticity. The cumulative recognition rates up to the third rank under RGB and HSV were 79.3% and 83.6% respectively. Furthermore, the fusion strategy using max score showed performance improvement of 16% or more. These results show that the proposed method is more effective than some other methods that use single color space in person re-identification.

• Journal of Korean Library and Information Science Society
• /
• v.51 no.2
• /
• pp.133-157
• /
• 2020

The study aims to prove the raison d'etre of public libraries in urban regeneration paradigm. Life SOC Plan is one of South Korea's urban regeneration policies. Public libraries are considered important in life SOC Plan because public libraries are "Social Anchors". Social Anchor is space-time-bounded place that accelerates diverse people's interactions. Social Anchor makes collective identity that supports production of social capital. Public libraries are institutions producing social capital but have weak collective identity because their missions(open, sharing, equality of information) don't allow boundaries and membership. The study conducted literature reviews and case studies to confirm how collective identity of public libraries strengthens. As a result, the study confirmed that renovating under-used space based on urban regeneration paradigm makes place identity of the under-used space to collective identity of public libraries. Thus, constructing public libraries by renovating under-used space is Social Anchor formation model based on urban regeneration paradigm.

• Korean Institute of Interior Design Journal
• /
• v.21 no.6
• /
• pp.204-211
• /
• 2012

The purpose of this study is to analyze characteristics and expression methods of contemporary art museums from the perspective of 'Rhizome', which is considered under similar context as 'indeterminacy' that represents the characteristics of contemporary public spaces. Methods of this study are as follows. First, necessity of this study is verified by investigating literature data and preceding studies, and by examining the fact that indeterminate characteristic is a new approach to contemporary public spaces. Second, in order to analyze Rhizomic expression in public spaces, analysis criteria are suggested by extracting components of public spaces and spatial characteristics of R150hizome from the literature. Third, Rhizomic characteristics and expression methods used in contemporary art museums are understood based on such analysis criteria. Fourth, when each spatial characteristic is expressed in art museums, the study found out that two factors among 'program', 'circulation', and 'form' are planned out as a mixture. Therefore, 'cohesion' is expressed as 'program' and 'form' in contemporary public spaces viewed from the perspective of 'Rhizome'. Also, 'diversity' is actively expressed through 'program' and 'circulation', and 'non-hierarchy' through 'form' and 'circulation'. Such methods are positive methods of expressing indeterminate contemporary public spaces. Since this study conducted analysis on characteristics and expression methods of public spaces from Rhizomic perspective of contemporary society, such results are deemed valuable in planning out public spaces that reflect the characteristics of contemporary society.

• Journal of the Korean housing association
• /
• v.21 no.4
• /
• pp.71-79
• /
• 2010

This study is a fundamental research which suggests some standards that can be used in selecting some advanced materials to be applied in housing space designs. The following conclusions have been drawn from the study. First, it has been discovered that as the residents' quality of life improved, the finishing materials emerged as an important element of housing spaces. It could also be seen that among the finishing materials used in housing spaces, there is recently a growing trend towards various environmentally-friendly advanced materials under the theme of 'the nature' and 'health'. As a result, the need to investigate the standards of discriminatory and efficient housing space designs using advanced materials is on the increase. Second, through the literature and precedent studies, the physical criteria of advanced materials have been classified into five categories: new technology, new manufacturing methods, new materials, complementation and applicability. The main criteria of advanced finishing materials for housing spaces have been classified into four main categories: durability, functionality, economical efficiency and sensibility. By collecting and classifying some key words according to each of these four categories, the representative or combinable features have been extracted. By organizing the advanced materials' physical criteria and their details, some standards based on the physical aspects have been suggested. The features of the finishing materials in consideration of advanced materials have been reclassified into the user-based criteria, environmental criteria and spatial criteria. Through this method, the criteria have been brought up from a new viewpoint, establishing the standards for the advanced materials applicable to housing spaces. Finally, after assessing the criteria by analyzing the advanced materials currently known to be applicable in housing spaces, it has been concluded that the criteria can be used as the fundamental standards. As this study is based on investigating the literature and data, it may be less than reasonable to generalize from the limited number of examples. Hence, it shall be important to make a profound study of some detailed criteria by suggesting more objective standards and analyzing a greater variety of advanced materials.

• Journal of the Korean housing association
• /
• v.12 no.4
• /
• pp.73-81
• /
• 2001

The purpose of this study was to carry out POE of assisted living housing and suggest the design guidelines for the housing complex for the elderly. The subjects were residents(old persons) and staff who lived or worked in three assisted living housing in Cincinnati, Ohio. Interview and survey method using questionnaire were used. The design guidelines for the housing for the elderly were suggested as follows: 1) the location of the housing for the elderly should be in or near the existing housing area, 2) the arrangement of spaces of the housing for the elderly should consist of small groupings rather than large and long corridor pattern, 3) the number of the housing units for the elderly should be small, under 100 units, 4) the housing units should be used by one older persons so that she/he could have the chance of privacy and personalization, 5) various common spaces such as art and craft room or game room should be provided, 6) accessibility should be considered, 7) the color and patterns of interior finishes should be differentiated according to floors or spaces and familiar ones should be used to make a homelike environment.