Nai Yang
Biographic Data
| ID | 4181826 |
|---|---|
| NAME | Nai Yang |
| GIVEN NAMES | Nai |
| FAMILY NAME | Yang |
| SIGNATURE | YANG N |
| AFFILIATIONS | China University of Geosciences |
| ORCID | 0000-0001-5306-1163 |
| VERIFIED | Yes |
| TOTAL WORKS | 19 |
| TOTAL CITATIONS | 10 |
| AUTHOR COUNT | 19 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2015 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 2 |
Effects of HUD Position and Text Information on Navigation Task Performance and Cognitive Load
Head-Up Display (HUD) systems are widely used in vehicles to overlay navigation prompts in the driver’s field of view, thereby reducing eyes-off-road time. However, suboptimal information presentation may impose extra cognitive demands and lead to driver distraction. To quantify the effects of key HUD navigation design factors on navigation task performance and cognitive workload, a 2 × 2 within-subjects experiment was conducted, manipulating dis…
The Influence of the Relationship Between Landmark Symbol Types, Annotations, and Colors on Search Performance in Mobile Maps Based on Eye Tracking
Mobile map landmark symbols are pivotal in conveying spatial semantics and enhancing users’ perception of digital maps. This study employs a three-factor hybrid experimental design to investigate the effects of different landmark symbol types and their color associations with annotations on search performance using eye tracking methods. Utilizing the Tobii X2-60 eye tracker, 40 participants engaged in a visual search task across three symbol type…
Diffusion Model-Based Cartoon Style Transfer for Real-World 3D Scenes
Traditional map style transfer methods are mostly based on GAN, which are either overly artistic at the expense of conveying information, or insufficiently aesthetic by simply changing the color scheme of the map image. These methods often struggle to balance style transfer with semantic preservation and lack consistency in their transfer effects. In recent years, diffusion models have made significant progress in the field of image processing an…
Non-contact map interaction configuration optimization
MapColorAI
An Improved Generative Adversarial Network for Generating Multi-Scale Electronic Map Tiles Considering Cartographic Requirements
Multi-scale electronic map tiles are important basic geographic information data, and an approach based on deep learning is being used to generate multi-scale map tiles. Although generative adversarial networks (GANs) have demonstrated great potential in single-scale electronic map tile generation, further research concerning multi-scale electronic map tile generation is needed to meet cartographic requirements. We designed a multi-scale electron…
Using a negative spatial auto-correlation index to evaluate and improve intrinsic tag map’s multi-scale visualization capabilities
Risk perception evaluation of epidemic maps using event-related potentials
Epidemic maps, by incorporating outbreak characteristics and visually presenting the data, have become the primary means for the public to grasp spatiotemporal risk insights. This study aims to provide design strategies to enhance the readability and risk perception effectiveness of epidemic maps, optimizing their visual design to improve information acquisition efficiency and risk perception efficacy. Employing a synthesis of event-related poten…
Multi-perspective perception of urban relative poverty and its associated factors analysis
Urban Perception Assessment from Street View Images Based on a Multifeature Integration Encompassing Human Visual Attention
Urban perception is a multifaceted process, spanning from vision to cognitive interpretation. Earlier studies on urban perception assessment have primarily concentrated on the analysis of graphic features of street view images such as color or semantic elements, neglecting the vital human sensory fixation features in cognitive processes. This study leveraged eye-tracking technology to accumulate human visual attention data during emotion scoring …
Effects of Spatial Reference Frames, Map Dimensionality, and Navigation Modes on Spatial Orientation Efficiency
How can the interactive mode of a map be optimized to facilitate efficient positioning and improve cognitive efficiency? This paper addresses this crucial aspect of map design. It explores the impact of spatial reference frames, map dimensionality, and navigation modes on spatial orientation efficiency, as well as their interactions, through empirical eye-movement experiments. The results demonstrate the following: (1) When using a 2D fixed map i…
Construction of a Real-Time Ship Trajectory Prediction Model Based on Ship Automatic Identification System Data
The extraction of ship behavior patterns from Automatic Identification System (AIS) data and the subsequent prediction of travel routes play crucial roles in mitigating the risk of ship accidents. This study focuses on the Wuhan section of the dendritic river system in the middle reaches of the Yangtze River and the partial reticulated river system in the northern part of the Zhejiang Province as its primary investigation areas. Considering the s…
Research on map emotional semantics using deep learning approach
The main purpose of the research on map emotional semantics is to describe and express the emotional responses caused by people observing images through computer technology. Nowadays, map application scenarios tend to be diversified, and the increasing demand for emotional information of map users bring new challenges for cartography. However, the lack of evaluation of emotions in the traditional map drawing process makes it difficult for the res…
Comparison of font size and background color strategies for tag weights on tag maps
Tag weight differences in tag maps are usually reflected by different font sizes. With this strategy, low weighted tags may be ignored and tag sizes may be misjudged due to differing word length, character height and word width. To address these shortcomings, this paper improves the layout method of tag maps by presetting anchor points. We construct weight contours based on corner points and center points of tag outer envelope rectangles and adop…
Analysis of Spatial and Temporal Changes of AQI in Wuhan City under the Urban Blockade of Covid-19 Pandemic
Wuhan was the primary city in the world to adopt lockdown measures during the Coronavirus Disease 2019 pandemic. The influence of the abrupt halt of human activities on the air quality of Wuhan is a subject of considerable attention. This study is based on air quality data from 21 monitoring stations in Wuhan from 2016 to 2020. The lag effect and seasonal factors of AQI were taken into account to analyze the changes in air quality in Wuhan under …
Influence of Relief Degree of Land Surface on Street Network Complexity in China
The relief degree of land surface (RDLS) was often calculated to describe the topographic features of a region. It is a significant factor in designing urban street networks. However, existing studies do not clarify how RDLS affects the distribution of urban street networks. We used a Python package named OSMnx to extract the street networks of different cities in China. The street complexity metrics information (i.e., street grain, connectedness…
Utility and usability of intrinsic tag maps
Intrinsic tag maps fit a tag cloud inside a geographic boundary to emphasize the association of the tags with a particular administrative region. So far, little is known about their utility and usability. Here, we present the results of an empirical study to help fill this gap. The study uses information retrieval tasks to evaluate intrinsic tag map utility and uses user confidence and preference judgments as a metric of usability. Key independen…
Spatial Distribution Balance Analysis of Hospitals in Wuhan
The spatial distribution pattern of hospitals in Wuhan indicates a core in the central urban areas and a sparse distribution in the suburbs, particularly at the center of suburbs. This study aims to improve the gravity and Huff models to analyze healthcare accessibility and resources. Results indicate that healthcare accessibility in central urban areas is better than in the suburbs, where it increasingly worsens for the suburbs. A shortage of he…
Using Hachures to Construct a 3D Doline Model Automatically
All types of relief features are usually represented by a unified digital terrain model on 3D topographic maps. Few studies have considered the differences in relief characteristics and terrain complexity. Hachures are often used to construct the relief symbols on 2D topographic maps, but they are less used on 3D topographic maps. This article uses hachures to construct a 3D doline model and divides them into three types: outlines, ridge lines, a…
Urban Perception Assessment from Street View Images Based on a Multifeature Integration Encompassing Human Visual Attention
Urban perception is a multifaceted process, spanning from vision to cognitive interpretation. Earlier studies on urban perception assessment have primarily concentrated on the analysis of graphic features of street view images such as color or semantic elements, neglecting the vital human sensory fixation features in cognitive processes. This study leveraged eye-tracking technology to accumulate human visual attention data during emotion scoring …
Comparison of font size and background color strategies for tag weights on tag maps
Tag weight differences in tag maps are usually reflected by different font sizes. With this strategy, low weighted tags may be ignored and tag sizes may be misjudged due to differing word length, character height and word width. To address these shortcomings, this paper improves the layout method of tag maps by presetting anchor points. We construct weight contours based on corner points and center points of tag outer envelope rectangles and adop…
Multi-perspective perception of urban relative poverty and its associated factors analysis
Research on map emotional semantics using deep learning approach
The main purpose of the research on map emotional semantics is to describe and express the emotional responses caused by people observing images through computer technology. Nowadays, map application scenarios tend to be diversified, and the increasing demand for emotional information of map users bring new challenges for cartography. However, the lack of evaluation of emotions in the traditional map drawing process makes it difficult for the res…
Utility and usability of intrinsic tag maps
Intrinsic tag maps fit a tag cloud inside a geographic boundary to emphasize the association of the tags with a particular administrative region. So far, little is known about their utility and usability. Here, we present the results of an empirical study to help fill this gap. The study uses information retrieval tasks to evaluate intrinsic tag map utility and uses user confidence and preference judgments as a metric of usability. Key independen…
Using Hachures to Construct a 3D Doline Model Automatically
All types of relief features are usually represented by a unified digital terrain model on 3D topographic maps. Few studies have considered the differences in relief characteristics and terrain complexity. Hachures are often used to construct the relief symbols on 2D topographic maps, but they are less used on 3D topographic maps. This article uses hachures to construct a 3D doline model and divides them into three types: outlines, ridge lines, a…
Spatial Distribution Balance Analysis of Hospitals in Wuhan
The spatial distribution pattern of hospitals in Wuhan indicates a core in the central urban areas and a sparse distribution in the suburbs, particularly at the center of suburbs. This study aims to improve the gravity and Huff models to analyze healthcare accessibility and resources. Results indicate that healthcare accessibility in central urban areas is better than in the suburbs, where it increasingly worsens for the suburbs. A shortage of he…
Utility and usability of intrinsic tag maps
Intrinsic tag maps fit a tag cloud inside a geographic boundary to emphasize the association of the tags with a particular administrative region. So far, little is known about their utility and usability. Here, we present the results of an empirical study to help fill this gap. The study uses information retrieval tasks to evaluate intrinsic tag map utility and uses user confidence and preference judgments as a metric of usability. Key independen…
Influence of Relief Degree of Land Surface on Street Network Complexity in China
The relief degree of land surface (RDLS) was often calculated to describe the topographic features of a region. It is a significant factor in designing urban street networks. However, existing studies do not clarify how RDLS affects the distribution of urban street networks. We used a Python package named OSMnx to extract the street networks of different cities in China. The street complexity metrics information (i.e., street grain, connectedness…
Analysis of Spatial and Temporal Changes of AQI in Wuhan City under the Urban Blockade of Covid-19 Pandemic
Wuhan was the primary city in the world to adopt lockdown measures during the Coronavirus Disease 2019 pandemic. The influence of the abrupt halt of human activities on the air quality of Wuhan is a subject of considerable attention. This study is based on air quality data from 21 monitoring stations in Wuhan from 2016 to 2020. The lag effect and seasonal factors of AQI were taken into account to analyze the changes in air quality in Wuhan under …
Effects of Spatial Reference Frames, Map Dimensionality, and Navigation Modes on Spatial Orientation Efficiency
How can the interactive mode of a map be optimized to facilitate efficient positioning and improve cognitive efficiency? This paper addresses this crucial aspect of map design. It explores the impact of spatial reference frames, map dimensionality, and navigation modes on spatial orientation efficiency, as well as their interactions, through empirical eye-movement experiments. The results demonstrate the following: (1) When using a 2D fixed map i…
Construction of a Real-Time Ship Trajectory Prediction Model Based on Ship Automatic Identification System Data
The extraction of ship behavior patterns from Automatic Identification System (AIS) data and the subsequent prediction of travel routes play crucial roles in mitigating the risk of ship accidents. This study focuses on the Wuhan section of the dendritic river system in the middle reaches of the Yangtze River and the partial reticulated river system in the northern part of the Zhejiang Province as its primary investigation areas. Considering the s…
Research on map emotional semantics using deep learning approach
The main purpose of the research on map emotional semantics is to describe and express the emotional responses caused by people observing images through computer technology. Nowadays, map application scenarios tend to be diversified, and the increasing demand for emotional information of map users bring new challenges for cartography. However, the lack of evaluation of emotions in the traditional map drawing process makes it difficult for the res…
Comparison of font size and background color strategies for tag weights on tag maps
Tag weight differences in tag maps are usually reflected by different font sizes. With this strategy, low weighted tags may be ignored and tag sizes may be misjudged due to differing word length, character height and word width. To address these shortcomings, this paper improves the layout method of tag maps by presetting anchor points. We construct weight contours based on corner points and center points of tag outer envelope rectangles and adop…
An Improved Generative Adversarial Network for Generating Multi-Scale Electronic Map Tiles Considering Cartographic Requirements
Multi-scale electronic map tiles are important basic geographic information data, and an approach based on deep learning is being used to generate multi-scale map tiles. Although generative adversarial networks (GANs) have demonstrated great potential in single-scale electronic map tile generation, further research concerning multi-scale electronic map tile generation is needed to meet cartographic requirements. We designed a multi-scale electron…
Using a negative spatial auto-correlation index to evaluate and improve intrinsic tag map’s multi-scale visualization capabilities
Risk perception evaluation of epidemic maps using event-related potentials
Epidemic maps, by incorporating outbreak characteristics and visually presenting the data, have become the primary means for the public to grasp spatiotemporal risk insights. This study aims to provide design strategies to enhance the readability and risk perception effectiveness of epidemic maps, optimizing their visual design to improve information acquisition efficiency and risk perception efficacy. Employing a synthesis of event-related poten…
Multi-perspective perception of urban relative poverty and its associated factors analysis
Urban Perception Assessment from Street View Images Based on a Multifeature Integration Encompassing Human Visual Attention
Urban perception is a multifaceted process, spanning from vision to cognitive interpretation. Earlier studies on urban perception assessment have primarily concentrated on the analysis of graphic features of street view images such as color or semantic elements, neglecting the vital human sensory fixation features in cognitive processes. This study leveraged eye-tracking technology to accumulate human visual attention data during emotion scoring …
The Influence of the Relationship Between Landmark Symbol Types, Annotations, and Colors on Search Performance in Mobile Maps Based on Eye Tracking
Mobile map landmark symbols are pivotal in conveying spatial semantics and enhancing users’ perception of digital maps. This study employs a three-factor hybrid experimental design to investigate the effects of different landmark symbol types and their color associations with annotations on search performance using eye tracking methods. Utilizing the Tobii X2-60 eye tracker, 40 participants engaged in a visual search task across three symbol type…
Diffusion Model-Based Cartoon Style Transfer for Real-World 3D Scenes
Traditional map style transfer methods are mostly based on GAN, which are either overly artistic at the expense of conveying information, or insufficiently aesthetic by simply changing the color scheme of the map image. These methods often struggle to balance style transfer with semantic preservation and lack consistency in their transfer effects. In recent years, diffusion models have made significant progress in the field of image processing an…
Non-contact map interaction configuration optimization
MapColorAI
Effects of HUD Position and Text Information on Navigation Task Performance and Cognitive Load
Head-Up Display (HUD) systems are widely used in vehicles to overlay navigation prompts in the driver’s field of view, thereby reducing eyes-off-road time. However, suboptimal information presentation may impose extra cognitive demands and lead to driver distraction. To quantify the effects of key HUD navigation design factors on navigation task performance and cognitive workload, a 2 × 2 within-subjects experiment was conducted, manipulating dis…
Computer Science (16 works) · Geography (11 works) · Artificial Intelligence (7 works) · Cartography (6 works) · Mathematics (5 works) · Psychology (5 works) · Computer vision (4 works) · Visualization (4 works) · Data mining (3 works) · Data Visualization and Analytics (3 works)