Pengcheng Liu
Biographic Data
| ID | 6320857 |
|---|---|
| NAME | Pengcheng Liu |
| GIVEN NAMES | Pengcheng |
| FAMILY NAME | Liu |
| SIGNATURE | LIU P |
| AFFILIATIONS | Central China Normal University |
| ORCID | 0000-0002-0874-1538 |
| VERIFIED | Yes |
| TOTAL WORKS | 20 |
| TOTAL CITATIONS | 10 |
| AUTHOR COUNT | 20 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2014 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 1 |
A Convolutional Autoencoder-Based Method for Vector Curve Data Compression
(1) Background: Curve data compression plays a critical role in efficient storage, transmission, and multi-scale visualization of vector spatial data, especially for complex geographic boundaries. Achieving high compression efficiency while preserving geometric fidelity remains a challenging task. (2) Methods: This study proposes a vector curve compression framework based on a convolutional autoencoder. Curve data are segmented and resampled to u…
Spatial patterns and climate adaptation mechanisms of street-house systems in Chongqing traditional settlements
Water–energy–food nexus in the circular economy
The Water–Energy–Food (W-E-F) nexus creates difficulties for policy makers, public and private organisations seeking to define a clear pathway towards a sustainable economy. Since the beginning of the industrial revolution, global consumption and resource use have followed a ‘linear economy model’. This review examines recent developments in circular W-E-F innovations, sustainable design tools, life-cycle methodologies and policy developments. Ev…
Flow-Based Community Search Approach for Functionally Cohesive Building Group Recognition
Recognizing functionally cohesive building groups is crucial for urban analysis, geospatial intelligence, and smart city applications. Traditional methods rely heavily on geometric information and often overlook the functional and semantic coherence of buildings, leading to their incorrect recognition. To overcome these challenges, this study introduces a flow-based community search approach, which models morphological, functional, and spatial re…
A Selection Method of Massive Point Cluster Using the Delaunay Triangulation to Support Real-Time Visualization
One of the goals of map generalization is to achieve real-time visualization of massive entities while adapting to zoom-in/zoom-out conditions. Unlike traditional map generalization, this type of scaling operation does not simplify the data to produce a final result; it only outputs temporary visualization data. To meet the current visualization scale requirements, we insert a simplification algorithm prior to visualization to process the data. T…
A Fourier Fitting Method for Floating Vehicle Trajectory Lines
With the advancement of spatial positioning technology, trajectory data have been growing rapidly. Trajectory data record the spatiotemporal information and behavioral characteristics of moving objects, and in-depth analysis can provide decision support for urban transportation. This paper explores effective methods for trajectory data representation, with a focus on the study of data fitting methods. Data fitting can extract key information and …
Mechanistic insights into xanthomicrol as the active anti-HCC ingredient of Phytolacca acinosa Roxb
Xanthomicrol, a principal active component of PAR, has been identified to impede the growth of HCC by targeting the PI3K/Akt/MMP9 pathway. This insight could enhance therapeutic approaches for HCC
Association between overtime and depressive symptoms among Chinese employees
Objectives: This study examines the correlation between overtime and depressive symptoms, and analyzed the moderating effect of age, education level, and income level on their correlation by using a nationally representative sample from the Chinese Family Panel Studies (CFPS) in 2018. Methods: Participants are divided into three groups: 30-44 h/week, 44.1-61.9 h/week (defined as overtime group), and ≥ 62 h/week (heavy overtime group). The multipl…
Drainage Pattern Recognition of River Network Based on Graph Convolutional Neural Network
Drainage network pattern recognition is a significant task with wide applications in geographic information mining, map cartography, water resources management, and urban planning. Accurate identification of spatial patterns in river networks can help us understand geographic phenomena, optimize map cartographic quality, assess water resource potential, and provide a scientific basis for urban development planning. However, river network pattern …
The Influence of Foreign Direct Investment on Physical Health of Rural-Urban Migrants—Empirical Evidence from China Migrants Dynamic Survey
The purpose of this study is to explore the influence of Foreign Direct Investment (FDI) on rural-urban migrants' physical health and its influencing mechanism. A total of 134,920 rural-urban migrant samples are matched based on the China Migrants Dynamic Survey in 2017 and the China Urban Statistical Yearbook in 2016. On the basis of the samples, a Binary Probit Model is used to explore the relationship between the degree of FDI and rural-urban …
Assessment of an instrument scale measuring the knowledge of antiretroviral therapy among people living with HIV
The psychometric assessment indicated that this ART knowledge scale had accepted internal consistency and discriminant construct validity. It can be used to assess the knowledge of antiretroviral therapy for PLHs
A point selection method in map generalization using graph convolutional network model
For point clusters, the conflict and crowding of map symbols is an inevitable problem during the transition from large to small scales. The cartographic generalization involved in this problem as a spatial decision-making process is usually related to the analysis of spatial context, the choice of abstraction operators, and the judgment of the resulting data quality. The rules summarized by traditional generalization methods usually require manua…
Evaluating the effectiveness of development-limiting boundary control policy
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…
The Influence of Internet Usage Frequency on Women’s Fertility Intentions—The Mediating Effects of Gender Role Attitudes
The purpose of this study is to verify the influence of internet usage frequency on women's fertility intentions and to examine the mediating effects of gender role attitudes, under the influence of internet usage frequency that affects women's fertility intentions, combined with the specific Chinese cultural context. A cross-sectional secondary data analysis was conducted using a sample of 3113 women of childbearing age in the Chinese General So…
Measuring the Association of Self-Perceived Physical and Social Neighborhood Environment with Health of Chinese Rural Residents
(1) Objectives: Using cross-sectional datasets, we investigated whether better self-perceived physical and social neighborhood environment was associated with perceived health status and health-related behaviors among Chinese rural residents. (2) Study Design: The study was based on the 2016 China Family Panel Studies (CFPS) survey. The sample consisted of 7191 rural residents over 18 in China. (3) Methods: The article measured physical neighborh…
An Evaluation Model of Level of Detail Consistency of Geographical Features on Digital Maps
This paper proposes a method to evaluate the level of detail (LoD) of geographic features on digital maps and assess their LoD consistency. First, the contour of the geometry of the geographic feature is sketched and the hierarchy of its graphical units is constructed. Using the quartile measurement method of statistical analysis, outliers of graphical units are eliminated and the average value of the graphical units below the bottom quartile is …
Son Preference and the Reproductive Behavior of Rural-Urban Migrant Women of Childbearing Age in China
Son preference has been shown to influence the childbearing behavior of women, especially in China. Existing research has largely focused on this issue using cross-sectional data of urban or rural populations in China, while evidence from the rural-urban migrant women is relatively limited. Based on the data of China Migrants Dynamic Survey in 2015, we used logistic regression models to explore the relationship of son preference and reproductive …
Fourier-based multi-scale representation and progressive transmission of cartographic curves on the internet
Automatic generation of multi-scale representations from the same spatial data source has been the research focus in map generalization for a long time. Based on the Fourier technique, this paper proposes a continuous, multi-scale representation model for progressive transformation of cartographic curves on the Internet. In our method, all the curves, whether closed or open, are depicted as periodical functions which are further expressed as Four…
The impact of the major causes of death on life expectancy in China
The findings of this study provide useful information, which could contribute to a more effective allocation of public health programmes. In recent years, chronic diseases and accidental injuries have emerged as major factors influencing life expectancy. Primary and secondary prevention actions, such as public education, modification of behaviours, and introduction of safety measures should be emphasised in efforts to promote life expectancy. The…
Evaluating the effectiveness of development-limiting boundary control policy
A point selection method in map generalization using graph convolutional network model
For point clusters, the conflict and crowding of map symbols is an inevitable problem during the transition from large to small scales. The cartographic generalization involved in this problem as a spatial decision-making process is usually related to the analysis of spatial context, the choice of abstraction operators, and the judgment of the resulting data quality. The rules summarized by traditional generalization methods usually require manua…
Fourier-based multi-scale representation and progressive transmission of cartographic curves on the internet
Automatic generation of multi-scale representations from the same spatial data source has been the research focus in map generalization for a long time. Based on the Fourier technique, this paper proposes a continuous, multi-scale representation model for progressive transformation of cartographic curves on the Internet. In our method, all the curves, whether closed or open, are depicted as periodical functions which are further expressed as Four…
The impact of the major causes of death on life expectancy in China
The findings of this study provide useful information, which could contribute to a more effective allocation of public health programmes. In recent years, chronic diseases and accidental injuries have emerged as major factors influencing life expectancy. Primary and secondary prevention actions, such as public education, modification of behaviours, and introduction of safety measures should be emphasised in efforts to promote life expectancy. The…
Fourier-based multi-scale representation and progressive transmission of cartographic curves on the internet
Automatic generation of multi-scale representations from the same spatial data source has been the research focus in map generalization for a long time. Based on the Fourier technique, this paper proposes a continuous, multi-scale representation model for progressive transformation of cartographic curves on the Internet. In our method, all the curves, whether closed or open, are depicted as periodical functions which are further expressed as Four…
An Evaluation Model of Level of Detail Consistency of Geographical Features on Digital Maps
This paper proposes a method to evaluate the level of detail (LoD) of geographic features on digital maps and assess their LoD consistency. First, the contour of the geometry of the geographic feature is sketched and the hierarchy of its graphical units is constructed. Using the quartile measurement method of statistical analysis, outliers of graphical units are eliminated and the average value of the graphical units below the bottom quartile is …
Son Preference and the Reproductive Behavior of Rural-Urban Migrant Women of Childbearing Age in China
Son preference has been shown to influence the childbearing behavior of women, especially in China. Existing research has largely focused on this issue using cross-sectional data of urban or rural populations in China, while evidence from the rural-urban migrant women is relatively limited. Based on the data of China Migrants Dynamic Survey in 2015, we used logistic regression models to explore the relationship of son preference and reproductive …
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…
The Influence of Internet Usage Frequency on Women’s Fertility Intentions—The Mediating Effects of Gender Role Attitudes
The purpose of this study is to verify the influence of internet usage frequency on women's fertility intentions and to examine the mediating effects of gender role attitudes, under the influence of internet usage frequency that affects women's fertility intentions, combined with the specific Chinese cultural context. A cross-sectional secondary data analysis was conducted using a sample of 3113 women of childbearing age in the Chinese General So…
Measuring the Association of Self-Perceived Physical and Social Neighborhood Environment with Health of Chinese Rural Residents
(1) Objectives: Using cross-sectional datasets, we investigated whether better self-perceived physical and social neighborhood environment was associated with perceived health status and health-related behaviors among Chinese rural residents. (2) Study Design: The study was based on the 2016 China Family Panel Studies (CFPS) survey. The sample consisted of 7191 rural residents over 18 in China. (3) Methods: The article measured physical neighborh…
Evaluating the effectiveness of development-limiting boundary control policy
Association between overtime and depressive symptoms among Chinese employees
Objectives: This study examines the correlation between overtime and depressive symptoms, and analyzed the moderating effect of age, education level, and income level on their correlation by using a nationally representative sample from the Chinese Family Panel Studies (CFPS) in 2018. Methods: Participants are divided into three groups: 30-44 h/week, 44.1-61.9 h/week (defined as overtime group), and ≥ 62 h/week (heavy overtime group). The multipl…
Drainage Pattern Recognition of River Network Based on Graph Convolutional Neural Network
Drainage network pattern recognition is a significant task with wide applications in geographic information mining, map cartography, water resources management, and urban planning. Accurate identification of spatial patterns in river networks can help us understand geographic phenomena, optimize map cartographic quality, assess water resource potential, and provide a scientific basis for urban development planning. However, river network pattern …
The Influence of Foreign Direct Investment on Physical Health of Rural-Urban Migrants—Empirical Evidence from China Migrants Dynamic Survey
The purpose of this study is to explore the influence of Foreign Direct Investment (FDI) on rural-urban migrants' physical health and its influencing mechanism. A total of 134,920 rural-urban migrant samples are matched based on the China Migrants Dynamic Survey in 2017 and the China Urban Statistical Yearbook in 2016. On the basis of the samples, a Binary Probit Model is used to explore the relationship between the degree of FDI and rural-urban …
Assessment of an instrument scale measuring the knowledge of antiretroviral therapy among people living with HIV
The psychometric assessment indicated that this ART knowledge scale had accepted internal consistency and discriminant construct validity. It can be used to assess the knowledge of antiretroviral therapy for PLHs
A point selection method in map generalization using graph convolutional network model
For point clusters, the conflict and crowding of map symbols is an inevitable problem during the transition from large to small scales. The cartographic generalization involved in this problem as a spatial decision-making process is usually related to the analysis of spatial context, the choice of abstraction operators, and the judgment of the resulting data quality. The rules summarized by traditional generalization methods usually require manua…
Mechanistic insights into xanthomicrol as the active anti-HCC ingredient of Phytolacca acinosa Roxb
Xanthomicrol, a principal active component of PAR, has been identified to impede the growth of HCC by targeting the PI3K/Akt/MMP9 pathway. This insight could enhance therapeutic approaches for HCC
Flow-Based Community Search Approach for Functionally Cohesive Building Group Recognition
Recognizing functionally cohesive building groups is crucial for urban analysis, geospatial intelligence, and smart city applications. Traditional methods rely heavily on geometric information and often overlook the functional and semantic coherence of buildings, leading to their incorrect recognition. To overcome these challenges, this study introduces a flow-based community search approach, which models morphological, functional, and spatial re…
A Selection Method of Massive Point Cluster Using the Delaunay Triangulation to Support Real-Time Visualization
One of the goals of map generalization is to achieve real-time visualization of massive entities while adapting to zoom-in/zoom-out conditions. Unlike traditional map generalization, this type of scaling operation does not simplify the data to produce a final result; it only outputs temporary visualization data. To meet the current visualization scale requirements, we insert a simplification algorithm prior to visualization to process the data. T…
A Fourier Fitting Method for Floating Vehicle Trajectory Lines
With the advancement of spatial positioning technology, trajectory data have been growing rapidly. Trajectory data record the spatiotemporal information and behavioral characteristics of moving objects, and in-depth analysis can provide decision support for urban transportation. This paper explores effective methods for trajectory data representation, with a focus on the study of data fitting methods. Data fitting can extract key information and …
A Convolutional Autoencoder-Based Method for Vector Curve Data Compression
(1) Background: Curve data compression plays a critical role in efficient storage, transmission, and multi-scale visualization of vector spatial data, especially for complex geographic boundaries. Achieving high compression efficiency while preserving geometric fidelity remains a challenging task. (2) Methods: This study proposes a vector curve compression framework based on a convolutional autoencoder. Curve data are segmented and resampled to u…
Spatial patterns and climate adaptation mechanisms of street-house systems in Chongqing traditional settlements
Water–energy–food nexus in the circular economy
The Water–Energy–Food (W-E-F) nexus creates difficulties for policy makers, public and private organisations seeking to define a clear pathway towards a sustainable economy. Since the beginning of the industrial revolution, global consumption and resource use have followed a ‘linear economy model’. This review examines recent developments in circular W-E-F innovations, sustainable design tools, life-cycle methodologies and policy developments. Ev…
Computer Science (9 works) · Medicine (8 works) · Geography (7 works) · Mathematics (7 works) · Artificial Intelligence (5 works) · China (5 works) · Data Management and Algorithms (5 works) · Psychology (5 works) · Economics (4 works) · Environmental health (4 works)