Multivariate Spatial Measures

1998 ◽  
pp. 191-198
Author(s):  
Charles E. Brown
Keyword(s):  
Spatial Measures

scholarly journals New indices to characterize drawing behavior in humans (Homo sapiens) and chimpanzees (Pan troglodytes)

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Lison Martinet ◽  
Cédric Sueur ◽  
Satoshi Hirata ◽  
Jérôme Hosselet ◽  
Tetsuro Matsuzawa ◽  
...  
Keyword(s):  
Pan Troglodytes ◽  
Homo Sapiens ◽  
Ontogenetic Development ◽  
Evolutionary Origins ◽  
Spatial Measures ◽  
Development And Evolution ◽  
Cave Art ◽  
Drawing Skills

AbstractTechniques used in cave art suggest that drawing skills emerged long before the oldest known representative human productions (44,000 years bc). This study seeks to improve our knowledge of the evolutionary origins and the ontogenetic development of drawing behavior by studying drawings of humans (N = 178, 3- to 10-year-old children and adults) and chimpanzees (N = 5). Drawings were characterized with an innovative index based on spatial measures which provides the degree of efficiency for the lines that are drawn. Results showed that this index was lowest in chimpanzees, increased and reached its maximum between 5-year-old and 10-year-old children and decreased in adults, whose drawing efficiency was reduced by the addition of details. Drawings of chimpanzees are not random suggesting that their movements are constrained by cognitive or locomotor aspect and we cannot conclude to the absence of representativeness. We also used indices based on colors and time and asked children about what they drew. These indices can be considered relevant tools to improve our understanding of drawing development and evolution in hominids.

Repeatability of spatial measures using figure-of-eight microphones

2013 ◽  
Vol 74 (9) ◽  
pp. 1076-1084 ◽  
Author(s):  
Michelle C. Vigeant ◽  
Clothilde B. Giacomoni ◽  
Amy C. Scherma
Keyword(s):  
Spatial Measures

scholarly journals Development of Time-location Weighted Spatial Measures Using Global Positioning System Data

2013 ◽  
Vol 28 ◽  
pp. e2013005 ◽  
Author(s):  
Daikwon Han ◽  
Kiyoung Lee ◽  
Jongyun Kim ◽  
Deborah H. Bennett ◽  
Diana Cassady ◽  
...  
Keyword(s):  
Global Positioning System ◽  
Positioning System ◽  
Global Positioning ◽  
Spatial Measures ◽  
System Data

Space Syntax Approach for Articulating Space and Social Life

2019 ◽  
pp. 223-249 ◽  
Author(s):  
Abdelbaseer A. Mohamed
Keyword(s):  
Social Network ◽  
Urban Environment ◽  
Urban Space ◽  
Social Life ◽  
Spatial Configuration ◽  
Space Syntax ◽  
Urban Models ◽  
Spatial Measures ◽  
The Relationship ◽  
The Way

This chapter sets out to provide a detailed description of the relationship between space and society. It begins by discussing how people co-live in spaces and how such spaces co-live as communities. Understanding the relationship between space and society requires shedding light on how (1) communities emerge and work and (2) people build their social network. The chapter's main premise is that spatial configuration is the container of activities and the way we construct our cities influences our social life. Therefore, the urban environment should be analyzed mathematically using urban models in order to evaluate and predict future urban policies. The chapter reviews a space-people paradigm, Space Syntax. It defines, elaborates, and interprets its main concepts and tools, showing how urban space is modelled and described in terms of various spatial measures including connectivity, integration, depth, choice, and isovist properties.

scholarly journals Reducing Vulnerability to Desertification by Using the Spatial Measures in a Degraded Area in Thailand

Land ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 49 ◽  
Author(s):  
Saowanee Wijitkosum
Keyword(s):  
Land Use ◽  
High Risk ◽  
Water Conservation ◽  
Aridity Index ◽  
Influential Factors ◽  
Local Conditions ◽  
Area Index ◽  
Spatial Measures ◽  
Risk Areas ◽  
Desertification Risk

The process of desertification is complex, involving interaction between many factors, both environmental and anthropogenic. However, human activities, especially from land-use change and inappropriate land use, are the most influential factors associated with the desertification risk. This study was conducted in Huay Sai, a degraded land in Thailand. The Environmentally Sensitive Area Index (ESAI) model incorporating Geogracphic Information System (GIS) was applied to investigate and map the desertification sensitivity area. The study aimed to analyze and assess measures to reduce the desertification risk. This study emphasized three group factors with nine subcriteria influencing desertification risk: soil (texture, fertility, drainage, slope gradient, and depth), climatic (precipitation and aridity index), and vegetation factors (land use and soil erosion). In terms of the required spatial measures to reduce the desertification vulnerability, policy and defensive measures that were closely related to drought and desertification of the area were considered. Three main measures covering soil and water conservation, soil improvement, and reforestation were implemented. The area development and restoration plans have been implemented continuously. The study found that 47.29% of the Huay Sai area was at a high risk, with a further 41.16% at a moderate risk. Implementation of three measures indicated that desertification risk was significantly decreased. Addressing the causes of the highest risk areas could help reduce the overall desertification risk at Huay Sai, where most areas would then be at either a moderate (61.04%) or low (32.43%) desertification risk with no severe- or high-risk areas. The success of the area restoration is from the formulation of a restoration and development plan that understands the local conditions. Moreover, the plan integrated the restoration of the soil, forests, and water together in order to restore the ecosystem so that the implementation was able to solve problems directly.

International politics by other means: External sources of civil war

2019 ◽  
Vol 56 (6) ◽  
pp. 812-826
Author(s):  
Mark Toukan
Keyword(s):  
Civil War ◽  
Civil Wars ◽  
Random Forests ◽  
Interstate Conflict ◽  
The Other ◽  
Ratchet Effect ◽  
International Context ◽  
Spatial Measures ◽  
External Sources ◽  
Logistic Regressions

The literature on civil wars has recently turned towards their international context but lacks an account for how conflict beyond a state’s borders contributes to civil war onset. I argue that interstate rivalries can increase the risk of civil war in other states when rivals come to associate the foreign-policy orientation of other states with their own security. I present three pathways through which rivals increase the risk of civil war in other states. First, competition between rivals creates a ratchet effect by which the prospect of one’s involvement in a conflict makes it more likely that the other becomes involved. This dynamic makes support easier to secure and lowers the expected costs of war for governments and opposition groups. Second, rivals encourage domestic polarization as parties attempt to capture their influence, making domestic conflicts more intractable. Third, uncertainty over the potential for intervention by rivals increases the risk of miscalculation. I test the implications of the theory with novel spatial measures of interstate conflict and rivalry. Using logistic regressions and random forests, I find that being in the neighborhood of interstate rivals can increase a state’s risk of civil war.

Are Measures Derived From Land Use and Transport Policies Associated With Walking for Transport?

2018 ◽  
Vol 15 (1) ◽  
pp. 13-21 ◽  
Author(s):  
Jerome N. Rachele ◽  
Vincent Learnihan ◽  
Hannah M. Badland ◽  
Suzanne Mavoa ◽  
Gavin Turrell ◽  
...  
Keyword(s):  
Land Use ◽  
Information System ◽  
Geographic Information System ◽  
Public Transport ◽  
Multinomial Logistic Regression ◽  
State Level ◽  
Geographic Information ◽  
Transport Services ◽  
Spatial Measures ◽  
Traffic Volumes

Background: There is growing urgency for higher quality evidence to inform policy. This study developed geographic information system spatial measures based on land use and transport policies currently used in selected Australian states to assess which, if any, of these measures were associated with walking for transport. Methods: Overall, 6901 participants from 570 neighborhoods in Brisbane, Australia, were included. Participants reported their minutes of walking for transport in the previous week. After a review of state-level land use and transport policies relevant to walking for transport across Australia, 7 geographic information system measures were developed and tested based on 9 relevant policies. Data were analyzed using multilevel multinomial logistic regression. Results: Greater levels of walking for transport were associated with more highly connected street networks, the presence of public transport stops, and having at least 2 public transport services per hour. Conversely, neighborhoods with shorter cul-de-sac lengths had lower levels of walking for transport. There was no evidence of associations between walking for transport and street block lengths less than 240 m or traffic volumes. Conclusions: These findings highlight the need for urban design and transport policies developed by governments to be assessed for their impact on transport-related physical activity.

scholarly journals Performance analysis of statistical spatial measures for contaminant plume characterization toward risk-based decision making

2013 ◽  
Vol 49 (6) ◽  
pp. 3119-3132 ◽  
Author(s):  
F. Boso ◽  
F. P. J. de Barros ◽  
A. Fiori ◽  
A. Bellin
Keyword(s):  
Decision Making ◽  
Performance Analysis ◽  
Contaminant Plume ◽  
Spatial Measures
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