• Title/Summary/Keyword: urban classification

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Classification of Multi-modal Transfer Center Considering the Regional and Functional Characteristics (지역 및 기능적 특성을 고려한 복합환승시설 유형분류)

  • Kim, Tae-Gyun;Lee, Sam-Su;Byun, Wan-Hee
    • Land and Housing Review
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    • v.4 no.1
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    • pp.89-98
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    • 2013
  • In recent years, it was recognized that aurban policy paradigm of sustainable urban growth management and transportation policies have been shifted : from the era of automobile-oriented policy to the era of public transport policy. Against this backdrop, the introduction of the multi-modal transfer center is very consequential. Therefore, it is necessary for the introduction of wide-area and local-centric transfer facilities, as well as the center of the country-led national backbone transfer center. This study was applicable at the multi-modal transfer center plans to introduce guidelines to provide transit facilities, considering the regional and functional characteristics to classify the types of multi-modal transfer center. The final types of multi-modal transfer center were classified into six, and by considering the combination of the criteria to be classified. The multi-modal transfer center type classification based on the case analysis of the types of facilities at domestic and abroad. If the data of multi-modal transfer are accumulated continuously, can expect a more reliable type classification.

Analysis of the Relationship between Urban Characteristic Elements by Type of City and GHG Emissions (도시 유형별 도시특성요소와 온실가스 배출량 간의 관계 분석)

  • Lee, Gunwon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.18 no.11
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    • pp.62-71
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    • 2017
  • This study classified cities across South Korea according to their urban characteristics, selecting representative cities for respective types, and drawing a relationship among urban characteristic elements, carbon emissions, and the energy consumption of cities. For the classification of cities, the elements of the urban characteristics were examined through a review of the related literature. Factor analysis was then carried out to select the variables from among these elements. The absolute coefficient value found in the analysis was set as a standard. A classification of cities across the country was performed using these variables, and representative cities were chosen for a comparison of the characteristics of each type. For an analysis of the relationships among the urban characteristics according to the type of city, the greenhouse gases, and the energy consumption of cities, emissions of greenhouse gases, electricity consumption, and oil consumption of the representative cities were compared and analyzed by correlation analysis. The analysis results indicated that the cause of greenhouse gas emissions and electricity consumption varies according to the elements of the characteristics of the representative cities, even when they show similar emissions and consumption.

A Study on the Gender and Age Classification of Speech Data Using CNN (CNN을 이용한 음성 데이터 성별 및 연령 분류 기술 연구)

  • Park, Dae-Seo;Bang, Joon-Il;Kim, Hwa-Jong;Ko, Young-Jun
    • The Journal of Korean Institute of Information Technology
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    • v.16 no.11
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    • pp.11-21
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    • 2018
  • Research is carried out to categorize voices using Deep Learning technology. The study examines neural network-based sound classification studies and suggests improved neural networks for voice classification. Related studies studied urban data classification. However, related studies showed poor performance in shallow neural network. Therefore, in this paper the first preprocess voice data and extract feature value. Next, Categorize the voice by entering the feature value into previous sound classification network and proposed neural network. Finally, compare and evaluate classification performance of the two neural networks. The neural network of this paper is organized deeper and wider so that learning is better done. Performance results showed that 84.8 percent of related studies neural networks and 91.4 percent of the proposed neural networks. The proposed neural network was about 6 percent high.

AN ASSESSMENT OF LAND COVER CHANGES AND ASSOCIATED URBANIZATION IMPACTS ON AIR QUALITY IN NAWABSHAH, PAKISTAN: A REMOTE SENSING PERSPECTIVE

  • Shaikh, Asif Ahmed;Gotoh, Keinosuke
    • Proceedings of the KSRS Conference
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    • v.2
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    • pp.555-558
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    • 2006
  • In recent years, urban development has expanded rapidly in Nawabshah City of Pakistan. A major effect associated with this population trend is transformation of the landscape from natural cover types to increasingly impervious urban land. The core objective of this study are to provide time-series information to define and measure the urban land cover changes of Nawabshah, Pakistan between the years 1992 and 2002, and to examine related urbanization impacts on air quality of the study area. Two multi-temporal Landsat images acquired in 1992 and 2002 together with standard topographical maps to measure land cover changes were used in this study. The image processing and data manipulation were conducted using algorithms supplied with the ERDAS Imagine software. An unsupervised classification approach, which uses a minimum spectral distance to assign pixels to clusters, was used with the overall accuracy ranging from 84 percent to 92 percent. Land cover statistics demonstrate that during the study period (1992-2002) extensive transformation of barren and vegetated lands into urban land have taken place in Nawabshah City. Results revealed that land cover changes due to urbanization has not only contaminated the air quality of the study area but also raised the health concerns for the local residents.

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Consumer Problem Perceived by Urban Low-Income Consumers and the Related Factors (도시 저소득층의 소비자문제지각과 관련요인 연구)

  • 김성숙;이기춘
    • Journal of Families and Better Life
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    • v.7 no.2
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    • pp.31-43
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    • 1989
  • The purposes of this study were to identify the overall levels of consumer problem, consumer competencies and purchase pattern of urban low-income consumers and to examine the factors affecting the consumer problem and the subareas-market environment problem(MEP) and transaction relation problem(TRP). The related factors, that is, independent variables were competencies-related factors(consumption-oriented attitude, attitude on consumerism, consumer knowledge), purchase pattern-related factors (search pattern, credit pattern, peddler pattern) and socio-demorgraphic factors(age, educational level, family size). For this purpose, a survey was conducted by interview using questionaires on 198 homemakers that lived in the poor areas of Seoul. Statistics used for data analysis were Frequency Distribution, Percentile, Mean, Pearson's Correlation, One-way ANOVA, Scheffe-test, Breakdown and Multiple Classification Analysis. Major findings were as follows: 1) In the level of consum r problem were in the middle level and the level of MEP were higher than that of TRP. The attitude on consumption-orientation was so negative, while attitude on consumerism was positive. The level of consumer knowledge was in the middle level. The urban low-income consumers searched a little and depended on credit and peddler in the low level. 2) Consumer problem perceived by urban low-income consumers differed significantly according to attitude on consumerism, credit pattern, monthly charge of peddler purchase. The MEP depended on attitude on consumerism and monthly charge of peddler purchase, and the TRP was affected by credit pattern and attitude on consumerism. Resulting from MCA, the most influencial variable was attitude on consumerism and credit pattern in the consumer problem, and attitude on consumerism in the MEP, and credit pattenr in the TRP.

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A Study on the Distribution Characteristic of Urban Surface Temperature and Urban Heat Island Effects (도시 지표면 온도분포 특성 및 열섬완화방안)

  • Do, Hu-Jo;Lee, Jung-Min;Ra, Jung-Hwa
    • Journal of Environmental Science International
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    • v.16 no.5
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    • pp.611-622
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    • 2007
  • The purpose of this research was to three-criteria landuse-pattern, developing density, NDVI which were related to the heat island and find the distribution characteristic of urban surface temperature and urban heat island effects. The results of this study were as follows. According to the analysis of surface temperatures, the first grade was the outside-city like a mountain and its temperature was less than $12.18^{\circ}C$. The fifth grade was the downtown industrial area and its temperature was more than $23.54^{\circ}C$. It means Daegu-Metropolitan-City has the serious heat-island effect. the results of landuse pattern analysis, in case of fifth and forth grade, city area was occupied over 90% with residential, commercial and industrial areas, but in case of third grade, openspace was occupied over 70%. The results of developing density analysis, the temperature had high correlation with building ratio, road ratio, vegetation ratio and etc. To plan for the decrease of heat island effect needed the extension of green space, decrease of paving, but there was a limit to get the objective method for grade classification because of lacking in the basic data, the research of criteria will be accomplished continuously.

A Study on Classification of Home Management Behavior and It's Related Variables of Urban Housewives (도시주부의 가정관리행동 유형분류와 그 관련변인에 관한 연구)

  • 이정우
    • Journal of the Korean Home Economics Association
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    • v.30 no.3
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    • pp.223-239
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    • 1992
  • The purpose of this study is to classify the home management behaviors of urban housewives and to find out variables which influence them. Following are the results. 1. The home management behavior of urban housewives are classified into six types. Thouse expense and convenience oriented type, using the information and family centered type, tradition and steady oriented type, improving life type, conservative and thrifty type and the self-faithfulness and change adaption type. 2. Follows are the variables which have influenced on home management behaviors of urban housewives. \circled1 The level of education of housewives, perceived level of economical resources, income and evaluation level of life have influenced on expense and convenience oriented type. \circled2 The duration of marriage, the level of education of husband, the satisfaction of housework and communication interaction have influenced on using the information and family centered type. \circled3 The satisfaction of housework, the perceived level of economical resources, the level of education of husband and the age of housewives have influenced on the tradition and steady oriented type. \circled4 The perceived level of family resources and the communication interaction have influenced on the improving life type. \circled5 The communication interaction and the income have influenced on conservative and thrifty type. \circled6 The perceived level of economical resources, the satisfication of housework, the communication interaction, the level of education of housewives, the age of housewives and the number of children have influenced on the self-faithfulness and change-adaption type.

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Renewal Methods of Public Space Using Abandoned sites in Works of 'European Prize for Urban Public Space' ('European Prize for Urban Public Space'의 참가작에서 나타나는 유휴지 활용 공공공간 재생방식)

  • Oh, Joon-Gul;Choi, Soon-Sub
    • KIEAE Journal
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    • v.12 no.6
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    • pp.55-62
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    • 2012
  • Recently, public concerns about renewal of abandoned sites centered in Industrial Heritage are increasing in Korea. For this reason, the purpose of this study was to analyze characteristics of renewal methods of public space using abandoned sites. To achieve the proposed goal, the first part of this study focused on showing public properties involved in the fundamental reasons for the birth and life(persistence) of abandoned sites, which testified that they should be regenerated into public spaces to maximize the potentiality of abandoned sites. Upon preliminary analysis, main values of public space renewal were drawn through the analysis of the selection criteria, type of information about selected works, and classification system in 'The European Prize for Urban Public Space' hosted by the CCCB(Centre of Contemporary Culture of Barcelona). Then, 427 projects participating in this prize from 2000 to 2010 were analyzed to identify characteristics of each level (site-program, process and space). Although this study was limited to the analysis of European projects, it proved that citizens' lives and activities should be involved in projecting-practicing-designing of renewal project using abandoned sites to create a successful public space.

Combination of fuzzy models via economic management for city multi-spectral remote sensing nano imagery road target

  • Weihua Luo;Ahmed H. Janabi;Joffin Jose Ponnore;Hanadi Hakami;Hakim AL Garalleh;Riadh Marzouki;Yuanhui Yu;Hamid Assilzadeh
    • Advances in nano research
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    • v.16 no.6
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    • pp.531-548
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    • 2024
  • The study focuses on using remote sensing to gather data about the Earth's surface, particularly in urban environments, using satellites and aircraft-mounted sensors. It aims to develop a classification framework for road targets using multi-spectral imagery. By integrating Convolutional Neural Networks (CNNs) with XGBoost, the study seeks to enhance the accuracy and efficiency of road target identification, aiding urban infrastructure management and transportation planning. A novel aspect of the research is the incorporation of quantum sensors, which improve the resolution and sensitivity of the data. The model achieved high predictive accuracy with an MSE of 0.025, R-squared of 0.85, RMSE of 0.158, and MAE of 0.12. The CNN model showed excellent performance in road detection with 92% accuracy, 88% precision, 90% recall, and an f1-score of 89%. These results demonstrate the model's robustness and applicability in real-world urban planning scenarios, further enhanced by data augmentation and early stopping techniques.

An Analysis on the Correlation between Types of Urban Railway Stations and Users' Travel Patterns (도시철도역사 유형과 통행패턴과의 상관관계 분석)

  • Kim, Hwang Bae;Oh, Dong Kyu;Lee, Sang Hwa;Jin, Sang Kyu
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.34 no.5
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    • pp.1553-1558
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    • 2014
  • The travel demand, peak hour ratio and forms of platform of urban railway stations are very different each other, also the users' behavior is. So the types of urban railway stations have to be classified according to these characteristics. However, the current methods of classification are arbitrary on the purpose of each studies and the legal standards are very simple; categorized by normal station vs. whistle station, types of trains, forms of platforms and shapes of architecture. This study clarifies the standards for classifying the types of urban railway stations, results the complete enumeration survey on all the urban railway stations in Seoul Metropolitan Area and makes the database based on the surveyed data, purposing on helping for making strategies and researching. On this study, utilizing the database which is established for this study, the correlation between the physical and geographical characteristics and users' travel patterns of urban railway stations is clarified by the statistical analysis. In the future, the statistical results will be helpful for making strategies and researching.