Mixed reality emergency management: bringing virtual evacuation simulations into real-world built environments

Lochhead, I.; Hedley, Nick

doi:10.1080/17538947.2018.1425489

Cited by 32 publications

(9 citation statements)

References 49 publications

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“…A complete account of all XR knowledge is beyond the scope of a single article. For example, more examples of case studies on emergency preparedness and evacuation planning using XR [178,179] could further enrich the paper. Nonetheless, organizing the information under technology, design, and human factors dimensions demonstrates the interconnectedness of the interdisciplinary questions, and allows a more holistic picture to be built, rather than focusing on one of them alone, for example, how do our tools and methods (technology and design) affect our cognitive and human factors studies?…”

Section: Discussionmentioning

confidence: 99%

Extended Reality in Spatial Sciences: A Review of Research Challenges and Future Directions

Çöltekin

Lochhead

Madden

et al. 2020

IJGI

Self Cite

141

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This manuscript identifies and documents unsolved problems and research challenges in the extended reality (XR) domain (i.e., virtual (VR), augmented (AR), and mixed reality (MR)). The manuscript is structured to include technology, design, and human factor perspectives. The text is visualization/display-focused, that is, other modalities such as audio, haptic, smell, and touch, while important for XR, are beyond the scope of this paper. We further narrow our focus to mainly geospatial research, with necessary deviations to other domains where these technologies are widely researched. The main objective of the study is to provide an overview of broader research challenges and directions in XR, especially in spatial sciences. Aside from the research challenges identified based on a comprehensive literature review, we provide case studies with original results from our own studies in each section as examples to demonstrate the relevance of the challenges in the current research. We believe that this paper will be of relevance to anyone who has scientific interest in extended reality, and/or uses these systems in their research.

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Section: Discussionmentioning

confidence: 99%

Extended Reality in Spatial Sciences: A Review of Research Challenges and Future Directions

Çöltekin

Lochhead

Madden

et al. 2020

IJGI

Self Cite

141

View full text Add to dashboard Cite

show abstract

“…It can map the keywords into spatial vectors for operation, by calculating the similarity of two vectors over space, thus indicating that the semantics of both are similar. Cosine Complexity similarity is calculated using the cosine theorem, which can measure the similarity between two-word vectors [18]. e smaller the angle between the two-word vectors, the more similar the two-word vectors are.…”

Section: Natural Language Processing Techniquesmentioning

confidence: 99%

Design of English Intelligent Simulated Paper Marking System

Yang

Liu

2021

Complexity

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In this paper, we analyze the intelligent subdesign of the simulated marking system through an in-depth study of it. This paper proposes a correlation analysis-based quantification of N-element sense values and a rationality enhancement-based scoring fitting algorithm for English essays. This paper also extracts word features, sentence features, and chapter structure features in essays to fit English composition scores. Since not all students can complete the essays according to the topic requirements, a triage scoring model is used to separate the normal essays from the low-scoring essays. Statistically, it was found that the essay scores also showed a certain normal distribution. The standard support vector regression algorithm is prone to data skewing problems, so this paper addresses this problem by using a rationality enhancement method that gives a corresponding penalty factor according to the distribution of the dataset. The results show that the English essay scoring fitting algorithm proposed in this paper can well improve the prediction accuracy of some data and solve the problem of skewed data where the scores show a normal distribution. This paper designs and implements an online mock examination system that incorporates an intelligent scoring system for essays, enabling it to meet the needs of teachers and students for online examinations and intelligent scoring.

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“…Pierdicca et al [27] combined geographical information system (GIS) with AR to devise a mobile solution for buffer strips monitoring and maintenance along riverbanks. According to [28], GIS-based spatial analysis has been used for evacuation assessments at different scales. Through introducing AR into this process, the authors demonstrated the feasibility and the efficacy of visually linking evacuation simulations to the corresponding built environment.…”

Section: Urban Outdoor Armentioning

confidence: 99%

Evaluation of Augmented Reality-Based Building Diagnostics Using Third Person Perspective

Liu

Jonsson

Seipel

2020

IJGI

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Comprehensive user evaluations of outdoor augmented reality (AR) applications in the architecture, engineering, construction and facilities management (AEC/FM) industry are rarely reported in the literature. This paper presents an AR prototype system for infrared thermographic façade inspection and its evaluation. The system employs markerless tracking based on image registration using natural features and a third person perspective (TPP) augmented view displayed on a hand-held smart device. We focus on evaluating the system in user experiments with the task of designating positions of heat spots on an actual façade as if acquired through thermographic inspection. User and system performance were both assessed with respect to target designation errors. The main findings of this study show that positioning accuracy using this system is adequate for objects of the size of one decimeter. After ruling out the system inherent errors, which mainly stem from our application-specific image registration procedure, we find that errors due to a human’s limited visual-motoric and cognitive performance, which have a more general implication for using TPP AR for target designation, are only a few centimeters.

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Mixed reality emergency management: bringing virtual evacuation simulations into real-world built environments

Cited by 32 publications

References 49 publications

Extended Reality in Spatial Sciences: A Review of Research Challenges and Future Directions

Extended Reality in Spatial Sciences: A Review of Research Challenges and Future Directions

Design of English Intelligent Simulated Paper Marking System

Evaluation of Augmented Reality-Based Building Diagnostics Using Third Person Perspective

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