Shipeng Sun
Dados Biográficos
| ID | 3635550 |
|---|---|
| NOME | Shipeng Sun |
| PRENOMES | Shipeng |
| SOBRENOME | Sun |
| ASSINATURA | SUN S |
| AFILIAÇÕES | The Graduate Center, CUNY |
| ORCID | 0000-0002-5350-9631 |
| VERIFICADO | Sim |
| TOTAL DE OBRAS | 11 |
| TOTAL DE CITAÇÕES | 10 |
| TOTAL COMO AUTOR | 11 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 2009 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2023 |
| ÍNDICE H | 2 |
From an agent-based laboratory to the real world
A Mapping of the Twentieth-Century Urban Geography in North America Using Written Narratives and Network Analysis
Exploring the intellectual heritage of urban geography in North America (UGNA) is a valuable but daunting challenge. One practical way is to mine the written narratives about its key figures and to map the pattern of their interconnections within a historical and institutional context. Urban Geography in America, 1950–2000: Paradigms and Personalities, a book edited by Berry and Wheeler, permits such an approach. In this book, twenty-five authors…
How Phantom Networks, Provider Qualities, and Poverty Sway Medicaid Dental Care Access
Access to general dental care is essential for preventing and treating oral diseases. To ensure adequate spatial accessibility for the most vulnerable populations, New York State mandates a ratio of one general dentist to 2000 Medicaid recipients within 30 min of public transportation. This study employed geospatial methods to determine whether the requirement is met in Manhattan by verifying the online directories of ten New York managed care or…
Developing a Comprehensive and Coherent Shape Compactness Metric for Gerrymandering
Measuring the form and structure of geographic landscapes is fundamental to understanding geospatial phenomena and their dynamics. Shape compactness metrics have been extensively employed in gerrymandering assessment, urban planning, landscape ecology, and other applications. Existing compactness measurements for gerrymandering, however, target particular aspects of gerrymandered shapes such as elongation, indentation, or dispersion without adequ…
Applying forces to generate cartograms
Automatic production of contiguous area cartograms has become practical with computer algorithms, particularly applying forces to rubber-sheets and simulating diffusion processes. Reformulating the existing force-based and rubber-sheet methods, this article presents a fast and flexible force-based computational framework for general space transformation with solid physical and mathematical foundations. When being applied to cartogram production, …
A spatial one-to-many flow layout algorithm using triangulation, approximate Steiner trees, and path smoothing
Mapping spatial flow remains a challenge despite noticeable progress in recent years. This article presents a new, automated layout algorithm for spatial flow from one origin to multiple destinations. The algorithm triangulates the mapped space and builds a network from the triangles. It then simulates the formation of the dendritic drainage pattern of natural river systems and constructs an approximate Steiner tree by sequentially computing the …
Rethinking Agricultural Trade Relationships in an Era of Globalization
Agricultural trade plays an important role in global food security and resource sustainability. Global food commodities trade is worth more than US$520 billion per year, could feed approximately two billion people, uses about 13% of worldwide cropland and pasture, and has geographically concentrated irrigation water demands. However, researchers rarely compare these monetary, nutritional, and resource metrics, which limits our ability to holistic…
A perception-based color recommendation algorithm for hierarchical regions
The visualization of hierarchical and nested spatial regions remains a challenge to cartographers. Despite progress in computer algorithms for visualizing general hierarchical data, mapping spatial hierarchical regions, especially with static, noninteractive means, still requires considerable manual efforts. This paper proposes a two-step algorithm that can automatically recommend perception-based colors and help reveal the hierarchical structure…
Market Impacts on Land-Use Change
Land-use change in a market economy, particularly at the urban–rural fringe in North America, is shaped through land and housing markets. Although market activities are at the core of economic studies of land-use change, many market elements are neglected by coupled human–environment models. We scrutinized the effects of the level of detail of market representation using an abstract, agent-based model of land-use change. This model includes agent…
Intraurban Migration, Neighborhoods, and City Structure
The neighborhood is the central analytical entry point into a wide range of research topics, but it is an open question as to what defines a neighborhood. Most quantitative neighborhood classification methods are based on the assumption that neighborhoods are composed of places with similar spatial and socioeconomic characteristics. While this assumption is both convenient and valuable in neighborhood classification, it tends to overlook critical…
Parcel Data for Research and Policy
Parcel data, or information about individual plots of land, may be used to examine a broad range of social and environmental issues. While analog parcel information has long been available, the move towards digital georeferenced data offers a more readily available means of using detailed structural and land use information. Parcels map onto useful units of analysis such as individuals and households, and serve as the foci of policy institutions …
Intraurban Migration, Neighborhoods, and City Structure
The neighborhood is the central analytical entry point into a wide range of research topics, but it is an open question as to what defines a neighborhood. Most quantitative neighborhood classification methods are based on the assumption that neighborhoods are composed of places with similar spatial and socioeconomic characteristics. While this assumption is both convenient and valuable in neighborhood classification, it tends to overlook critical…
Parcel Data for Research and Policy
Parcel data, or information about individual plots of land, may be used to examine a broad range of social and environmental issues. While analog parcel information has long been available, the move towards digital georeferenced data offers a more readily available means of using detailed structural and land use information. Parcels map onto useful units of analysis such as individuals and households, and serve as the foci of policy institutions …
Applying forces to generate cartograms
Automatic production of contiguous area cartograms has become practical with computer algorithms, particularly applying forces to rubber-sheets and simulating diffusion processes. Reformulating the existing force-based and rubber-sheet methods, this article presents a fast and flexible force-based computational framework for general space transformation with solid physical and mathematical foundations. When being applied to cartogram production, …
Parcel Data for Research and Policy
Parcel data, or information about individual plots of land, may be used to examine a broad range of social and environmental issues. While analog parcel information has long been available, the move towards digital georeferenced data offers a more readily available means of using detailed structural and land use information. Parcels map onto useful units of analysis such as individuals and households, and serve as the foci of policy institutions …
Intraurban Migration, Neighborhoods, and City Structure
The neighborhood is the central analytical entry point into a wide range of research topics, but it is an open question as to what defines a neighborhood. Most quantitative neighborhood classification methods are based on the assumption that neighborhoods are composed of places with similar spatial and socioeconomic characteristics. While this assumption is both convenient and valuable in neighborhood classification, it tends to overlook critical…
Market Impacts on Land-Use Change
Land-use change in a market economy, particularly at the urban–rural fringe in North America, is shaped through land and housing markets. Although market activities are at the core of economic studies of land-use change, many market elements are neglected by coupled human–environment models. We scrutinized the effects of the level of detail of market representation using an abstract, agent-based model of land-use change. This model includes agent…
Rethinking Agricultural Trade Relationships in an Era of Globalization
Agricultural trade plays an important role in global food security and resource sustainability. Global food commodities trade is worth more than US$520 billion per year, could feed approximately two billion people, uses about 13% of worldwide cropland and pasture, and has geographically concentrated irrigation water demands. However, researchers rarely compare these monetary, nutritional, and resource metrics, which limits our ability to holistic…
A perception-based color recommendation algorithm for hierarchical regions
The visualization of hierarchical and nested spatial regions remains a challenge to cartographers. Despite progress in computer algorithms for visualizing general hierarchical data, mapping spatial hierarchical regions, especially with static, noninteractive means, still requires considerable manual efforts. This paper proposes a two-step algorithm that can automatically recommend perception-based colors and help reveal the hierarchical structure…
A spatial one-to-many flow layout algorithm using triangulation, approximate Steiner trees, and path smoothing
Mapping spatial flow remains a challenge despite noticeable progress in recent years. This article presents a new, automated layout algorithm for spatial flow from one origin to multiple destinations. The algorithm triangulates the mapped space and builds a network from the triangles. It then simulates the formation of the dendritic drainage pattern of natural river systems and constructs an approximate Steiner tree by sequentially computing the …
Applying forces to generate cartograms
Automatic production of contiguous area cartograms has become practical with computer algorithms, particularly applying forces to rubber-sheets and simulating diffusion processes. Reformulating the existing force-based and rubber-sheet methods, this article presents a fast and flexible force-based computational framework for general space transformation with solid physical and mathematical foundations. When being applied to cartogram production, …
How Phantom Networks, Provider Qualities, and Poverty Sway Medicaid Dental Care Access
Access to general dental care is essential for preventing and treating oral diseases. To ensure adequate spatial accessibility for the most vulnerable populations, New York State mandates a ratio of one general dentist to 2000 Medicaid recipients within 30 min of public transportation. This study employed geospatial methods to determine whether the requirement is met in Manhattan by verifying the online directories of ten New York managed care or…
Developing a Comprehensive and Coherent Shape Compactness Metric for Gerrymandering
Measuring the form and structure of geographic landscapes is fundamental to understanding geospatial phenomena and their dynamics. Shape compactness metrics have been extensively employed in gerrymandering assessment, urban planning, landscape ecology, and other applications. Existing compactness measurements for gerrymandering, however, target particular aspects of gerrymandered shapes such as elongation, indentation, or dispersion without adequ…
A Mapping of the Twentieth-Century Urban Geography in North America Using Written Narratives and Network Analysis
Exploring the intellectual heritage of urban geography in North America (UGNA) is a valuable but daunting challenge. One practical way is to mine the written narratives about its key figures and to map the pattern of their interconnections within a historical and institutional context. Urban Geography in America, 1950–2000: Paradigms and Personalities, a book edited by Berry and Wheeler, permits such an approach. In this book, twenty-five authors…
From an agent-based laboratory to the real world
Computer Science (8 obras) · Geography (7 obras) · Business (5 obras) · Economic geography (4 obras) · Algorithm (3 obras) · Data Management and Algorithms (3 obras) · Data Visualization and Analytics (3 obras) · Economics (3 obras) · Engineering (3 obras) · Housing Market and Economics (3 obras)