• Title/Summary/Keyword: wayfinding

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A Design of the Wayfinding App for the Deaf (청각장애인을 위한 길찾기 앱 설계)

  • Lee, Jae-Hoon;Kwon, Dae-Geun;Hwang, Yo-Sep;Sin, Hyeon-Geun;Jeong, Uk-jo;Yang, Ji-Yeon;Han, Gwang-Hyeok;Lim, Yang-Won;Lim, Han-Kyu
    • Proceedings of the Korea Information Processing Society Conference
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    • 2013.11a
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    • pp.542-544
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    • 2013
  • 최근 스마트폰 보급률이 높아지면서 장애인들에 대한 스마트폰 보급도 올라가게 되었다. 하지만, 스마트폰을 이용하기 위한 수많은 어플리케이션이 출시되고 있는데 비해 장애인들에게 필요한 어플리케이션은 많지 않다. 또한 장애인들을 위한 어플리케이션은 그 조작법이 어렵거나 사용자가 필요로 하는 기능이 부족하다. 특히, GPS기능을 활용한 유용한 앱들이 많은 반면 장애인들을 위한 내비게이션 앱은 부족하다. 본 논문에서는 청각장애인들이 쉽게 접근할 수 있도록 청각장애인을 위한 길찾기 어플리케이션에 청각장애인들이 유용하게 활용할 수 잇도록 청각장애인용 앱을 설계하였다.

Application of Deep Learning: A Review for Firefighting

  • Shaikh, Muhammad Khalid
    • International Journal of Computer Science & Network Security
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    • v.22 no.5
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    • pp.73-78
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    • 2022
  • The aim of this paper is to investigate the prevalence of Deep Learning in the literature on Fire & Rescue Service. It is found that deep learning techniques are only beginning to benefit the firefighters. The popular areas where deep learning techniques are making an impact are situational awareness, decision making, mental stress, injuries, well-being of the firefighter such as his sudden fall, inability to move and breathlessness, path planning by the firefighters while getting to an fire scene, wayfinding, tracking firefighters, firefighter physical fitness, employment, prediction of firefighter intervention, firefighter operations such as object recognition in smoky areas, firefighter efficacy, smart firefighting using edge computing, firefighting in teams, and firefighter clothing and safety. The techniques that were found applied in firefighting were Deep learning, Traditional K-Means clustering with engineered time and frequency domain features, Convolutional autoencoders, Long Short-Term Memory (LSTM), Deep Neural Networks, Simulation, VR, ANN, Deep Q Learning, Deep learning based on conditional generative adversarial networks, Decision Trees, Kalman Filters, Computational models, Partial Least Squares, Logistic Regression, Random Forest, Edge computing, C5 Decision Tree, Restricted Boltzmann Machine, Reinforcement Learning, and Recurrent LSTM. The literature review is centered on Firefighters/firemen not involved in wildland fires. The focus was also not on the fire itself. It must also be noted that several deep learning techniques such as CNN were mostly used in fire behavior, fire imaging and identification as well. Those papers that deal with fire behavior were also not part of this literature review.

Leveraging Visibility-Based Rewards in DRL-based Worker Travel Path Simulation for Improving the Learning Performance

  • Kim, Minguk;Kim, Tae Wan
    • Korean Journal of Construction Engineering and Management
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    • v.24 no.5
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    • pp.73-82
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    • 2023
  • Optimization of Construction Site Layout Planning (CSLP) heavily relies on workers' travel paths. However, traditional path generation approaches predominantly focus on the shortest path, often neglecting critical variables such as individual wayfinding tendencies, the spatial arrangement of site objects, and potential hazards. These oversights can lead to compromised path simulations, resulting in less reliable site layout plans. While Deep Reinforcement Learning (DRL) has been proposed as a potential alternative to address these issues, it has shown limitations. Despite presenting more realistic travel paths by considering these variables, DRL often struggles with efficiency in complex environments, leading to extended learning times and potential failures. To overcome these challenges, this study introduces a refined model that enhances spatial navigation capabilities and learning performance by integrating workers' visibility into the reward functions. The proposed model demonstrated a 12.47% increase in the pathfinding success rate and notable improvements in the other two performance measures compared to the existing DRL framework. The adoption of this model could greatly enhance the reliability of the results, ultimately improving site operational efficiency and safety management such as by reducing site congestion and accidents. Future research could expand this study by simulating travel paths in dynamic, multi-agent environments that represent different stages of construction.

HaptiSole: Wearable Haptic System in Vibrotactile Guidance Shoes for Visually Impaired Wayfinding

  • Slim Kammoun;Rahma Bouaziz;Faisal Saeed;Sultan Noman Qasem;Tawfik Al-Hadhrami
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.17 no.11
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    • pp.3064-3082
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    • 2023
  • During the last decade, several Electronic Orientation Aids devices have been proposed to solve the autonomy problems of visually impaired people. When hearing is considered the primary sense for Visually Impaired people (VI) and it is generally loaded with the environment, the use of tactile sense can be considered a solution to transmit directional information. This paper presents a new wearable haptic system based on four motors implemented in shoes, while six directions can be played. This study aims to introduce an interface design and investigate an appropriate means of spatial information delivery through haptic sense. The first experiment of the proposed system was performed with 15 users in an indoor environment. The results showed that the users were able to recognize, with high accuracy, the directions displayed on their feet. The second experiment was conducted in an outdoor environment with five blindfolded users who were guided along 120 meters. The users, guided only by the haptic system, successfully reached their destinations. The potential of tactile-foot stimulation to help VI understand Electronic Orientation Aids (EOA) instructions was discussed, and future challenges were defined.

Evacuation Behaviors under the Corridor and Stair Width Variations in Evacuation Experiments (복도·계단 폭 변화를 통한 피난실험에서 피난행태에 미치는 영향요인 분석)

  • Lee, Jeong-Soo;Kwon, Heung-Soon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.13 no.5
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    • pp.2374-2381
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    • 2012
  • The aims of this study are to verify the effecting factors in evacuation behavior under the corridor and stair width variation in evacuation experiments at university education facilities. To achieve these purposes, the present conditions of university education facilities were analyzed, and the evacuation experiment settings were established under different width of corridor and stairs. After the experiments, we asked the effecting variables to the evacuation behaviors under the variation of corridor, stair width and density of evacuee. The results of this study are as follows ; First, we found 3 main factors which affecting the evacuation behaviors ; environmental factors on building conditions, psychological factors on evacuee's characteristics and personal factors on evacuee's physical conditions. Second, the environmental factors such as the location of stairs for evacuation, recognition of wayfinding in fire condition are mainly affects the evacuation behaviors, but evacuee behaviors have little relations with fire extinguishing facilities and personality.

The Analysis of Using an Information Service for Supplying Information in the Rural Amenity Resources by Utilizing a Smart Phone (스마트폰을 활용한 농촌어메니티 자원 정보제공을 위한 정보서비스 이용실태 분석)

  • Son, Ho-Gi;Kim, Sang-Bum;Jo, Lock-Hwan;Choi, Jai-Ung
    • The Korean Journal of Community Living Science
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    • v.22 no.4
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    • pp.579-590
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    • 2011
  • This study focused on developing various application services for smart phones in the rural amenity resources information service. By developing application services for smart phones, this study aims to stimulate rural tourism and increase the rural tourism economy. The main findings of this study revealed that 'information for reports/cultural/recreational facilities, etc', 'maps for rural villages(food, attractions, etc)', 'regional weather information', 'traffic reports for rural villages(public transportation, etc)' and 'introduction of rural experiences (festivals, exhibitions, events, etc)' are preferentially needed as the contents services of the rural amenity resources. Moreover, it has been found that the types of services firstly needed to offer information of rural amenity resources include 'searching the information around me(where I am)', 'wayfinding such as navigation', 'information sharing function with messenger and SNS, etc', 'taking and editing photography', 'searching information of rural villages about festivals, events, etc'. These are the items that can be utilized in developing application services needed by information services of rural amenity resources. It is expected that the future real-time smart phone services for rural amenity resources will be able to reinforce the competitiveness of rural tourism by giving urban dwellers the chance to utilize the customized information whenever they want.

A Study of Usability for Mobile Map Applications -Focused on Mobile Map Applications of Naver and Daum- (모바일 지도 애플리케이션의 사용성 연구 -네이버, 다음 지도를 중심으로-)

  • Moon, Jung-Sun;Kim, Seung-In
    • Journal of Digital Convergence
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    • v.15 no.2
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    • pp.347-353
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    • 2017
  • The aim of this paper is to improve the usability of Mobile Maps by allowing more people to use. To figure out better UX/UI, I evaluated usability for Mobile Applications from various materials such as literatures and blogs for qualitative methods and interviews and questionnaires about satisfaction of Naver and Daum for quantitative methods. So, We know that a map app is important and it is affected by force and profile on the portal site than its own features, because, not often in everyday life. Even though people do not use Mobile Map Applications frequently, we need to improve usability to make anybody use them easily by minimizing depth and button designs.

A Study on the Plans of Apartments Underground Parking lots to Prevent Women's Criminal fear Psychology - Focused on apartment design competitions of Suwon A region - (여성의 범죄불안심리를 고려한 공동주택의 지하주차장 계획 연구 - 수원A지구 공동주택 현상설계를 중심으로 -)

  • Li, Jin-Ji;Kim, Nam-Hyo
    • Korean Institute of Interior Design Journal
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    • v.18 no.6
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    • pp.104-114
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    • 2009
  • The purpose of study was understanding necessity of environment design for underground parking lot in residential design plan and grasping design plans of 'Activity Support' that considerate women, exclude women's unsecured feeling at underground parking lot. The inquiry analyzed 6 design plan in design competition that considerate women according to precede studies, a theory of CPTED, a design guide for wayfinding, and survey. A ramp, circulation, entrance, lighting, ventilation, and space design plan are proceed on this study The result are as below. First, a rectilinear figure ramp suits entrance plan on the circulation, but if it is not possible, cross-using of rectilinear and curvilinear figure ramp plan is desirable. Second, on the circulation plan, vehicles circulation plan and equality parking distribution plan got accomplished generally, and help senses of direction because it is planed network systemize. On a large scale underground parking lot, simplify parking circulation to convenience entrance and exit for weak in sense of direction. Third, the shape and material that‘s environmentally conscious will be in use to the entrance plan. As the first stage to the underground, artwork that women prefer can modulate the rejection of underground space. Forth, natural lighting system and ventilation can make the environment-friendly space, decrease the women’s rejection to the underground, it can also keep a natural watch on the space. Fifth, on the space design plan, it can use bright and comfortable design of wall and ground to decrease the women‘s rejection, also it is useful to the sense of direction. LED indirect lighting plan that 58.7% of women prefers on survey reflects women’s state of desire that bright and atmosphere. In addition, proper use of plans that subsidiary facilities, rest area with Sunken, and nature-friendly material can minimize differences of underground and ground parking lot.

Research on the relationship of store unit configuration and business activation of street mall - Based on case studies of street malls in Korea - (스트릿 몰(Street Mall)의 매장 배분계획과 영업활성화의 관계에 대한 연구 - 국내 스트릿 몰의 사례를 중심으로 -)

  • Woo, Seung-Hyun;Yoon, Hea-Kyung
    • Korean Institute of Interior Design Journal
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    • v.18 no.6
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    • pp.202-210
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    • 2009
  • This research was undertaken to prove the relationship between street mall activation and architectural plan design. The research methodology was established based on the analysis of data of two existing street malls in Korea (Western Dome & LaFesta) and theoretical studies of outdoor space design. The findings from this study are the following: First, building blocks with segments in every 50m or so are ideal for detailed communication between visitors and building contents. Second, the ratio of width of main corridor and building height should be less than 1 to provide intimate feel and keep visitors' attention concentrated in the facility. Third, store unit should have more storefronts to be exposed more to passers-by and lead more pedestrian traffic. Fourth, shape of store unit would rather be wide and shallow, instead of narrow and deep, to have more exposure to the central corridor. Fifth, the building block of the busiest(most expensive) area that is usually at the main entrance area of street mall should be flexible to fit more smaller units to maximize the profitability. Sixth, the main entrance of store should face the main pedestrian corridor to induce the influx of visitors. Lastly seventh, anchor tenant that has strong name recognition is usually located on basement or higher level to induce pedestrian traffic into the mall, key tenants that are strong and familiar brand names should be located at the corner of building block with spacing to attract visitors, provide even distribution of traffic, and support wayfinding, and local tenant should be located at small units along the central corridor or remainder spaces occurred from building core layout.

A Case Study and Implications on Improvements in Environmental Design of Outpatient Department and Health Examination Center in Mental Health Hospital - For Health Promotion Department of National Mental Health Center (정신의료시설 내 외래부 및 건강검진센터의 환경디자인 개선 사례 및 시사점 연구 - 국립정신건강센터 건강증진과를 대상으로)

  • Noh, Tae Rin;Lee, Seung Ji;Suh, Swoo kyung
    • Journal of The Korea Institute of Healthcare Architecture
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    • v.27 no.3
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    • pp.17-26
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    • 2021
  • Purpose: This study is a case study in which the space was improved by applying the design direction derived through the theoretical basis and service design process to the outpatient department and health examination center in mental health facilities used by various stakeholders. And it aims to present implications through this. Methods: The research method is based on the analysis of the service design process with a focus on literature review. Results: As a result of deriving the design direction, it was organized into 1) improvement of spatial arrangement, 2) improvement of wayfinding system, and 3) creation of comfortable environment. The design improvement plan suggested division of areas, change of nurse station location, creation of a pleasant waiting space for the outpatient department, reinforcement of access, improvement of room relocation and flow, and increased comfort of common spaces for the health examination center. Implications: First, it is necessary to expand research and application of spatial planning and environmental design reflecting the characteristics of patients and environments of mental health institutions. Second, in the medical environment, the divided territoriality should be reviewed for various stakeholders as well as the coexistence. Third, it is necessary to promote medical service and environmental improvement through the service design process.