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A New Spatial Approach For Efficient Transformation Of Equality - Generalized Tsp To Tsp, Mohammed Zia, Ziyadin Cakir, Dursun Zafer Seker 2017 Istanbul Technical University

A New Spatial Approach For Efficient Transformation Of Equality - Generalized Tsp To Tsp, Mohammed Zia, Ziyadin Cakir, Dursun Zafer Seker

Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings

The Equality - Generalized Travelling Salesman Problem (E-GTSP) asks to find a Hamiltonian cycle visiting each group exactly once, where each group represents a type of visiting node. This can represent a range of combinatorial optimization problem of NP-hard type like planning, logistics, etc. Its solution requires transformation of E- GTSP to TSP before solving it using a given TSP solver. This paper presents 5 different search-algorithms for optimal transformation which considers spatial spread of nodes of each group. Algorithms are tested over 15 cities with different street-network’s fractal- dimension for 5 instances of group-counts each. It’s observed that ...


Landsat Sentinel Registration Source Codes: Linux, Lin Yan, David P. Roy 2017 South Dakota State University

Landsat Sentinel Registration Source Codes: Linux, Lin Yan, David P. Roy

Landsat Sentinel Registration Source Codes

  • SSReg is open-source software (coded in C) for precise automatic registration of two Sentinel-2 L1C acquisitions including all 10 m, 20 m and 60 m bands.
  • Version 1.1 is a Linux version and includes source codes, manual and test data.
  • Major functionalities of the software:
    • Image registration supporting translation, affine and 2nd order polynomial transformations.
    • Classic implementation of least-squares matching (LSM) with up to 0.02 pixel matching accuracy on medium-spatial-resolution optical-wavelength remote sensing images, including Landsat and Sentinel 2.
    • Implementation of the LSM-based depth-first mismatch detection.
  • The development and release of this open-source software is funded by ...


Towards Food Service Sustainability In Suburban Environments By Optimally Locating Shared Anaerobic Digester Units, Rebecca Loraamm, Joni Downs, Robert Alonso Bair, Daniel Yeh 2017 University of Oklahoma

Towards Food Service Sustainability In Suburban Environments By Optimally Locating Shared Anaerobic Digester Units, Rebecca Loraamm, Joni Downs, Robert Alonso Bair, Daniel Yeh

Suburban Sustainability

Anaerobic digestion is an effective method for reducing food waste at the consumer level. Drawbacks associated with this strategy include high construction costs for multiple digester units and limited public awareness of the method’s commercial potential. Given the large scale problem of food waste, an approach establishing community partnerships between local businesses and primary schools is offered to combat the problem of food waste. Optimizing the placement of shared digester units enabling utilization by multiple stakeholders is the suggested mitigation method. This research explores application of the p-median problem to determine the set of optimal sites for shared anaerobic ...


The Urban Morphology Of Northwest Arkansas: A Geospatial Analysis, Jason McCollum 2017 University of Arkansas, Fayetteville

The Urban Morphology Of Northwest Arkansas: A Geospatial Analysis, Jason Mccollum

Theses and Dissertations

Research on the impacts of transport infrastructure is limited, and most of it is either focused on

rural areas or on developed areas before modern geospatial technologies were available. This study aimed

to fill this gap in transport research by providing a holistic look at the regional changes that occurred due to

new transport infrastructure construction in Northwest Arkansas between 1980 and 2011.

The National Land Cover Database was used to create a time-series of land cover across the

region between 1992 and 2011. These data were then used to predict future growth in the region.

Additionally, growth patterns of ...


Uas As An Inventory Tool: A Photogrammetric Approach To Volume Estimation, Richard Kramer Rhodes 2017 University of Arkansas, Fayetteville

Uas As An Inventory Tool: A Photogrammetric Approach To Volume Estimation, Richard Kramer Rhodes

Theses and Dissertations

Unmanned aircraft systems (UAS), also referred to as unmanned aerial vehicles (UAV) or remotely piloted vehicles (RPV), are associated with unmanned aircraft either controlled by a pilot on the ground or pre-programmed with specific flight paths. Small UASs have seen a massive increase in public interest in recent years as hobbyist platforms; they are, however, a potentially powerful tool in remote sensing and geospatial applications. Due to the increased availability of low-cost UAS, this technology could soon revolutionize many industries, including those that require volumetric estimation. Traditionally volumetric inventories have been performed with tape measurements, and in some instances where ...


The Bicycle, The Unsuitable Substitute:A Feasibility Study Based In Fayetteville, Ar Using A Bicycle As A Year-Round Replacement For An Automobile, Jamey Voorhees 2017 University of Arkansas, Fayetteville

The Bicycle, The Unsuitable Substitute:A Feasibility Study Based In Fayetteville, Ar Using A Bicycle As A Year-Round Replacement For An Automobile, Jamey Voorhees

Theses and Dissertations

Can a bicycle can be used in place of an automobile for everyday transportation and commuting needs? Fayetteville, Arkansas is a bicycle friendly and they plan continue to expand the current trail system improve other components in the future. Alternative transportation forms like the bicycle are important but only if bikes are integrated into traffic which needs to be done in some way that all involved understand their place in the system. By actively participating in this system I have attempted to show that a bicycle is just not feasible as a form of daily transportation in a city like ...


The Mobile Monitoring Of Particulate Matter Through Wearable Sensors And Their Influence On Students' Environmental Attitudes, Joseph M. Abbate 2017 DePaul University

The Mobile Monitoring Of Particulate Matter Through Wearable Sensors And Their Influence On Students' Environmental Attitudes, Joseph M. Abbate

DePaul Discoveries

While we have a comprehensive understanding of air pollutants, and their spatiotemporal characteristics across global, and even regional, scales, we are quite limited in our capacity to monitor neighborhood-scale emissions. The mobile monitoring of air pollution is a growing field, prospectively filling in these gaps while personalizing air quality-based tools and risk assessment. In the present study, we developed wearable sensors for particulate matter (PM); and through a citizen science approach, students of partnering Chicago schools monitored PM concentrations throughout their commutes over a five-day period. While their recorded findings would be used to explore the relationship between PM concentrations ...


Spatial Analysis Of Tornado Warning System Understanding And Relationship With Tornado Occurrence, Chesnea A. Skeen 2017 University of Tennessee - Knoxville

Spatial Analysis Of Tornado Warning System Understanding And Relationship With Tornado Occurrence, Chesnea A. Skeen

Pursuit - The Journal of Undergraduate Research at the University of Tennessee

Tornadoes present a significant threat to life and property. The National Weather Service watch and warning system warns the public of tornadoes. If these warnings are not heeded by the public, the potential fatalities and destruction of property cannot be minimized. Thus, to prevent further loss of life and property, it is necessary to understand how the public understands the watch and warning system, as well as how they react. This paper aims to understand the correlation between understanding of watches and warnings and the occurrence of tornadoes, as well as how understanding varies spatially. Survey data were collected from ...


Mapping The Oratory Of Frederick Douglass, Olivia MacIsaac, Peter Harrah, David Lewis, Lynette Taylor, LeAnn West, Matthew Young 2017 Butler University

Mapping The Oratory Of Frederick Douglass, Olivia Macisaac, Peter Harrah, David Lewis, Lynette Taylor, Leann West, Matthew Young

Olivia MacIsaac

This project is a multidisciplinary study of Douglass’s speaking tours throughout his long public career as an abolitionist, human rights advocate, and politician. For this initial phase, our primary aim was data collection for which our research team sampled a single year from each of the six decades from the 1840s to the 1890s. This was the time period in which well-known runaway slave and civil rights leader Frederick Douglass toured the United States and Europe. The purpose of this study is to develop a spatial representation of the itinerary of Douglass’s speaking-related travels. This will not only ...


Accuracy Assessment Of A Drone Mapping System, Enrique Angel Brincat, Ruijin Ma PhD 2017 University of Redlands

Accuracy Assessment Of A Drone Mapping System, Enrique Angel Brincat, Ruijin Ma Phd

MS GIS Program Major Individual Projects

The practical application of drones is dependent on the accuracy of their sensors. This study was conducted to statistically compare the California Department of Transportation’s (Caltrans) existing data with the newly acquired data created with a DJI Phantom 4 Pro. To better serve California, Caltrans requested this study to assess the use of drones in highway planning and design. Caltrans historically outsourced its aerial imagery acquisition to third party contractors. This process takes months for the imagery to be delivered, is expensive, and prone to delays. Determining the accuracy of drone mapping would allow the organization to have an ...


Economic Evaluation Of Coastal Land Loss In Louisiana, Stephen R. Barnes, Craig Bond, Nicholas Burger, Kate Anania, Aaron Strong, Sarah Weilant, Stephanie Virgets 2017 Louisiana State University

Economic Evaluation Of Coastal Land Loss In Louisiana, Stephen R. Barnes, Craig Bond, Nicholas Burger, Kate Anania, Aaron Strong, Sarah Weilant, Stephanie Virgets

Journal of Ocean and Coastal Economics

Louisiana has lost approximately 1,880 square miles of land over the past eighty years. Projections suggest that in a future without action, the next fifty years could result in the loss of 1,750 additional square miles of land area. As land loss continues, a large portion of the natural and man-made capital stocks of coastal Louisiana will be at greater risk of damage, either from land loss or from the associated increase in storm damage. We estimate the replacement cost of capital stock directly at risk from land loss ranges from approximately $2.1 billion to $3.5 ...


Snow And Non-Snow Events Based Winter Traffic Crash Pattern Analysis And Developing Lake Effect Snow Induced Crash Count Prediction Model, Bandhan Dutta Ayon 2017 Western Michigan University

Snow And Non-Snow Events Based Winter Traffic Crash Pattern Analysis And Developing Lake Effect Snow Induced Crash Count Prediction Model, Bandhan Dutta Ayon

Master's Theses

This study aims to (i) find the spatial-temporal traffic crash pattern and (ii) develop a statistical model for predicting LES induced traffic crash counts. Three southwest Michigan counties: Allegan, Kalamazoo and Calhoun are selected to conduct this study. Snow and non-snow event based comparative analysis are conducted using Getis-Ord Gi* statistic to identify high density crash cluster locations in the study area. While several new and oscillating hot spots are detected in Allegan during snow, no hot spot is detected during non-snow events based analysis. In Kalamazoo, traffic crashes do not exhibit much difference in spatial-temporal trend during snow or ...


Mapping Meaningful Places On Washington’S Olympic Peninsula: Toward A Deeper Understanding Of Landscape Values, Lee Cerveny, Kelly Biedenweg, Rebecca J. McLain 2017 US Forest Service Pacific Northwest Research Station

Mapping Meaningful Places On Washington’S Olympic Peninsula: Toward A Deeper Understanding Of Landscape Values, Lee Cerveny, Kelly Biedenweg, Rebecca J. Mclain

Institute for Sustainable Solutions Publications and Presentations

Landscape values mapping has been widely employed as a form of public participation GIS (PPGIS) in natural resource planning and decision-making to capture the complex array of values, uses, and interactions between people and landscapes. A landscape values typology has been commonly employed in the mapping of social and environmental values in a variety of management settings and scales. We explore how people attribute meanings and assign values to special places on the Olympic Peninsula (Washington, USA) using both a landscape values typology and qualitative responses about residents’ placerelationships. Using geographically referenced social values data collected in community meetings (n ...


Locational Analysis Of Crime In Gombe Metropolis, Nigeria, Adam A. Abbas, Abubakar U. Alhaji, Kadini J. Bitrus 2017 Federal University, Kashere, Nigeria

Locational Analysis Of Crime In Gombe Metropolis, Nigeria, Adam A. Abbas, Abubakar U. Alhaji, Kadini J. Bitrus

Confluence Journal of Environmental Studies (CJES), Kogi State University, Nigeria

Worldwide, urban centres do experience concentration of various types of crimes, Gombe is not an exception. The study assesses spatial location of crime in Gombe metropolis, the capital city of Gombe state, Nigeria. It also identifies areas where proposed Police stations should be located in the study area. GIS was used as a spatial tool in not only identifying and mapping the location of Police stations and outposts but also crime spots. Field taking of geographic coordinates was employed using Global Positioning System (GPS) as the methodology of mapping. Accordingly, location-allocation model and buffers were also used for the determination ...


Participation Is Not A Panacea, Britta Ricker 2017 University of Washington Tacoma

Participation Is Not A Panacea, Britta Ricker

Resistance GIS

Britta Ricker is an Assistant Professor in the Urban Studies program at the University Washington Tacoma. Ricker teaches a wide variety of courses related to Geographic Information Systems (GIS) and Science and Urban Research Methods. Her research interests convergence around spatial information collection and dissemination opportunities afforded by mobile computers. She is interested in applying these tools for spatial learning related to emergency preparedness and environmental communication initiatives. Her professional experience includes acting as a Hazard Mapping Analyst for Dewberry and Davis, a consultant for the Federal Emergency Management Agency (FEMA). She has also acted as a cartographic consultation for ...


Gis As A Tool For Neighborhood, Adam Brunelle 2017 Portland State University

Gis As A Tool For Neighborhood, Adam Brunelle

Resistance GIS

Adam Brunelle is a community organizer and advocacy planner with experience incubating communityprojects and programs at the grassroots level, including his work on climate change as a co-founder of nonprofit 350PDX and more recently engage Portland’s Lents community on livability issues through local nonprofit Green Lents. Brunelle is committed to bottom-up change and community-led advocacy, focusing his work on improving livability, preserving affordability, and fostering community control in the Lents area. He received his Master’s in Urban and Regional Planning from Portland State University in 2016, and was awarded the Excellence in Sustainability: Inspiring Student Award in 2016 ...


Ground-Truthing: Geographic Information Systems (Gis) As Community-Based And Anti-Racist Praxis, Verónica N. Vélez 2017 Western Washington University

Ground-Truthing: Geographic Information Systems (Gis) As Community-Based And Anti-Racist Praxis, Verónica N. Vélez

Resistance GIS

Dr. Verónica Nelly Vélez is an Assistant Professor and the Director of the Education and Social Justice Minor at Western Washington University (WWU). Before joining WWU, Verónica worked as a Postdoctoral Research Fellow and the Director of Public Programming at the Center for Latino Policy Research at UC Berkeley. Her research interests include Critical Race Theory and Latina/o Critical Theory in Education, the politics of parent engagement in educational reform, particularly for Latina/o (im)migrant families, participatory action and community-based models of research, and the use of GIS technologies to further a critical race research agenda on the ...


Spatial Narratives In A Post-Truth World, Dillon Mahmoudi 2017 Portland State University

Spatial Narratives In A Post-Truth World, Dillon Mahmoudi

Resistance GIS

Dillon Mahmoudi will graduate in June 2017 with a PhD in Urban Studies
at Portland State University. He also received his Graduate Certificate in GIS from the Geography department. In the fall of 2017, he will be moving to Baltimore to be Assistant Professor of Geography and Environmental Systems at the University of Maryland Baltimore County where he will teach courses in advanced GIS methods and economic geography. His research and community engagement focuses on critical methods for GIS, bifurcation and deskilling in tech work (software and cartography), geographies of urban inequity, and the intersections of cities and digital technologies.


Resistance (?) Gis (?), Jim Thatcher 2017 University of Washington

Resistance (?) Gis (?), Jim Thatcher

Resistance GIS

Jim Thatcher is an Assistant Professor of Urban Studies at the University of Washington Tacoma. His research examines relationships between extremely large geospatial data sets and the creation and analysis of those data sets and society, with a focus on how data has come to mediate, saturate, and sustain modern urban environments. Often referred to as Critical Data Studies or Digital Political Ecologies, Jim’s work has been featured in media outlets including NPR and The Atlantic. His first edited volume, Thinking Big Data In Geography: New Regimes, New Research, is forthcoming from University of Nebraska Press.


Federal Data: Strategies For Maintaining Access And Availability, Elizabeth F. Pickard 2017 Portland State University

Federal Data: Strategies For Maintaining Access And Availability, Elizabeth F. Pickard

Resistance GIS

Beth Pickard is a librarian and assistant professor at Portland State University where she works with geographers and other scientists. She earned her BA in Anthropology from the University of Chicago and her MSI in Information Science from the University of Michigan. In addition to her work in academia, she writes poetry, fiction and other genre-resistant pieces. Her work has appeared in Underwater New York, the Portland Review and elsewhere.

Before coming to PSU, Beth served as Interim Engineering Librarian at the University of Illinois at Chicago and as University Library Associate at the Art, Architecture and Engineering Library at ...


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