Carson P Moore, Natalie N Robbins, Gladys Odhiambo, Kennedy Andiego, Meredith Odhiambo, Fredrick Rawago, Rosemary Musuva, Maurice Odiere, David Wright, Thomas Scherr
{"title":"Pharos: a mobile GIS application for network assessment and ground-truth mapping to support mHealth study design in low-resource settings.","authors":"Carson P Moore, Natalie N Robbins, Gladys Odhiambo, Kennedy Andiego, Meredith Odhiambo, Fredrick Rawago, Rosemary Musuva, Maurice Odiere, David Wright, Thomas Scherr","doi":"10.1080/13658816.2026.2641743","DOIUrl":"10.1080/13658816.2026.2641743","url":null,"abstract":"<p><p>Mobile health (mHealth) is a promising tool for improving healthcare access, particularly in low-resource settings. However, limited mobile accessibility and poor connectivity remain significant barriers to implementing mHealth interventions in these regions. To address these challenges and support the development and scalability of mHealth studies, we developed Pharos, a mobile GIS application designed to assess network coverage and facilitate ground-truth mapping. Pharos autonomously measures spatiotemporal variations in mobile network signal strength and enables precise mapping of critical landmarks and environmental features. We deployed Pharos in a four-county region along the shores of Lake Victoria in Western Kenya as part of a preparatory phase for a large-scale mHealth study focused on schistosomiasis control. Over six months and 10,000 km<sup>2</sup>, Pharos collected high- resolution data on network performance and landmark locations, generating a comprehensive dataset that links network availability with environmental features. These results provide essential insights for planning and implementing mHealth interventions in low-resource settings, with potential applications in infectious disease surveillance and other global health initiatives.</p>","PeriodicalId":14162,"journal":{"name":"International Journal of Geographical Information Science","volume":" ","pages":""},"PeriodicalIF":5.9,"publicationDate":"2026-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13166115/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147929667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Deconstructing rurality to better \"place\" health data.","authors":"Daniel Beene, Yan Lin, Joseph H Hoover, Xun Shi","doi":"10.1080/13658816.2025.2482718","DOIUrl":"10.1080/13658816.2025.2482718","url":null,"abstract":"<p><p>Rural-urban classification schemes are frequently used in ecological studies of population health. However, the algorithms used to produce these classifications as well as their underlying assumptions may not match their intended use in health research. Here, we focus on the spatial distribution of features of the physical environment that are related to health - such as healthcare - to examine the extent to which eight classification schemes capture the heterogeneous context of rural places. We further explore how well rural-urban classifications distinguish between different types of rural places by comparing rural Tribal reservations with other rural areas in the American southwest. Because health services and infrastructure are often distributed through state and federal programs to underserved populations in rural areas, this approach speaks to the broader political implications in how rural communities are defined and represented. Results indicate that rural-urban classifications do not adequately reflect heterogeneous contexts within and across rural places. We advocate for more appropriate population health models that explain contextual differences in the relationship between health and place.</p>","PeriodicalId":14162,"journal":{"name":"International Journal of Geographical Information Science","volume":" ","pages":""},"PeriodicalIF":5.1,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12435940/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145075061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jielu Zhang, Lan Mu, Donglan Zhang, Zhuo Chen, Janani Rajbhandari-Thapa, José A Pagán, Yan Li, Gengchen Mai, Zhongliang Zhou
{"title":"SpaCE: a spatial counterfactual explainable deep learning model for predicting out-of-hospital cardiac arrest survival outcome.","authors":"Jielu Zhang, Lan Mu, Donglan Zhang, Zhuo Chen, Janani Rajbhandari-Thapa, José A Pagán, Yan Li, Gengchen Mai, Zhongliang Zhou","doi":"10.1080/13658816.2024.2443757","DOIUrl":"https://doi.org/10.1080/13658816.2024.2443757","url":null,"abstract":"<p><p>Understanding the relationship between risk factors, geospatial patterns, and disease outcomes is essential in health geography research. These relationships can inform the implementation of healthcare and public health strategies to improve health outcomes. To accurately uncover such complex relationships, it is necessary to have a predictive model capable of integrating both health variables and spatial information to forecast health outcomes, along with a tool to interpret and reveal the patterns identified by this model. We developed a Spatial Counterfactual Explainable Deep Learning model (SpaCE), comprising a spatially explicit health outcome predictor and a prototype-guided counterfactual explanation. The SpaCE model unifies geospatial and health variables to improve predictions and generates hypothetical examples with minimal changes but opposite outcomes. Using these counterfactuals, SpaCE assesses the impact of each variable in different spatial contexts. We evaluated the model for predicting cardiac arrest survival outcomes. With a 0.682 AUCROC score, the SpaCE exceeds baseline models by 10.2%. Further analysis also reveals that the geospatial context significantly affects how various risk factors affect the survival outcomes of patients. Overall, the SpaCE model significantly improves predictive accuracy and explainability. It provides targeted interventions at both individual and geographic levels, and the cardiac arrest case study shows its high adaptability to various disease scenarios.</p>","PeriodicalId":14162,"journal":{"name":"International Journal of Geographical Information Science","volume":" ","pages":""},"PeriodicalIF":5.1,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12377555/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144953919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Trisalyn Nelson, Amy E Frazier, Peter Kedron, Somayeh Dodge, Bo Zhao, Michael Goodchild, Alan Murray, Sarah Battersby, Lauren Bennett, Justine I Blanford, Carmen Cabrera-Arnau, Christophe Claramunt, Rachel Franklin, Joseph Holler, Caglar Koylu, Angela Lee, Steven Manson, Grant McKenzie, Harvey Miller, Taylor Oshan, Sergio Rey, Francisco Rowe, Seda Şalap-Ayça, Eric Shook, Seth Spielman, Wenfei Xu, John Wilson
{"title":"A research agenda for GIScience in a time of disruptions.","authors":"Trisalyn Nelson, Amy E Frazier, Peter Kedron, Somayeh Dodge, Bo Zhao, Michael Goodchild, Alan Murray, Sarah Battersby, Lauren Bennett, Justine I Blanford, Carmen Cabrera-Arnau, Christophe Claramunt, Rachel Franklin, Joseph Holler, Caglar Koylu, Angela Lee, Steven Manson, Grant McKenzie, Harvey Miller, Taylor Oshan, Sergio Rey, Francisco Rowe, Seda Şalap-Ayça, Eric Shook, Seth Spielman, Wenfei Xu, John Wilson","doi":"10.1080/13658816.2024.2405191","DOIUrl":"10.1080/13658816.2024.2405191","url":null,"abstract":"<p><p>Social issues, AI, and climate change are just a few of the disruptive focuses impacting science. The field of GIScience is well positioned to respond to accelerating disruptions due to the interdisciplinary nature of the field and the ability of GIScience approaches to be used in support of decision-making. This manuscript aims to start a conversation that will establish a research agenda for GIScience in an age of disruptions. We outline three guiding principles: (1) focusing on the relevance and real-world impact of research, (2) adopting systems-based thinking and contextual approaches and (3) emphasizing inclusive practices. We then outline prioritized research areas organized by what topics are important focal areas (Data and Infrastructure, Artificial Intelligence, and Causality and Generalizability), and what approaches to science we should be attentive to (Impactful Open Science, Collaborative and Convergent Science, and through Diverse Participation and Partnerships). We conclude with a call to increase impact by balancing slow science with practical and policy-oriented research. We also recognize that while broad adoption of spatial approaches is a signal of GIScience's success, we should continue to work together to advance core knowledge centered on spatial thinking and approaches.</p>","PeriodicalId":14162,"journal":{"name":"International Journal of Geographical Information Science","volume":"39 1","pages":"1-24"},"PeriodicalIF":5.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12347541/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144855149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hao Yang, X Angela Yao, Christopher C Whalen, Noah Kiwanuka
{"title":"Exploring Human Mobility: A Time-Informed Approach to Pattern Mining and Sequence Similarity.","authors":"Hao Yang, X Angela Yao, Christopher C Whalen, Noah Kiwanuka","doi":"10.1080/13658816.2024.2427258","DOIUrl":"10.1080/13658816.2024.2427258","url":null,"abstract":"<p><p>The surge in the availability of spatial big data has sparked increased interest in researching human mobility patterns. Despite this, discovering human mobility patterns from such spatial big data and assessing the similarity between patterns remains a formidable challenge. This study introduces two novel methods: the Time-Informed pattern mining (TiPam) method for frequent pattern mining and a Time-Aware Longest Common Subsequence (T-LCS) algorithm for assessing similarity between time-conscious sequences. Leveraging these innovative algorithms, our research introduces an analytical framework for analyzing human mobility patterns at both individual and aggregated levels. As a case study, this proposed workflow is applied to examine the daily mobility patterns of voluntary mobile phone users in Kampala, Uganda. The 135 participants are found in four distinct groups labeled with distinct mobility properties for users in each group: \"stay-at-home,\" \"unoccupied,\" \"education-oriented,\" and \"work-oriented.\" The results effectively showcase the efficiency of the framework and the novel techniques employed. The framework's versatility extends to human mobility studies with other forms of data and across various research fields.</p>","PeriodicalId":14162,"journal":{"name":"International Journal of Geographical Information Science","volume":"39 3","pages":"627-651"},"PeriodicalIF":5.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11906185/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143648472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Beyond absolute space: modeling disease dispersion and reactive actions from a multi-spatialization perspective.","authors":"Shiran Zhong, Yujia Pan, Ling Bian","doi":"10.1080/13658816.2025.2564772","DOIUrl":"10.1080/13658816.2025.2564772","url":null,"abstract":"<p><p>Dynamic geographical phenomena, such as the transmission of communicable diseases, are inherently complex processes. Concerns have arisen in the GIScience community that the prevailing absolute spatialization is insufficient to capture the complexity. This study investigates health risks in the frame of multiple spatializations: relational space (home and workplaces), relative space (serviceplaces), and mental space (perception). First, we estimate health risks in terms of the presence of influenza-like illness symptoms in relational space and relative space. Second, we estimate the probability of taking reactive actions based on health threats perceived in mental space. A two-layer Bayesian network model and the SHAP model are used to support the intended study. Findings reaffirm the pivotal role of relational space in disease transmission. Relative space is found to impose substantial health risks that exceeded those of relational space, yet the risks varied across serviceplace types. Perceived health threats in mental space effectively motivated reactive actions. The multi-spatialization frame enables the representation of health risks at the nexus of proximity, relations, relative contacts, and perception, and can be extended to many geographical phenomena both theoretically and empirically.</p>","PeriodicalId":14162,"journal":{"name":"International Journal of Geographical Information Science","volume":"39 11","pages":"2631-2649"},"PeriodicalIF":5.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13251716/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148225284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"GPU-accelerated parallel all-pair shortest path routing within stochastic road networks","authors":"Wenwu Tang, Tianyang Chen, Marc P. Armstrong","doi":"10.1080/13658816.2024.2394651","DOIUrl":"https://doi.org/10.1080/13658816.2024.2394651","url":null,"abstract":"All-pair shortest path routing within stochastic road networks is often more complicated and computationally challenging than routing in deterministic networks because uncertainties in travel time ...","PeriodicalId":14162,"journal":{"name":"International Journal of Geographical Information Science","volume":"17 1","pages":""},"PeriodicalIF":5.7,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142184282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Collective flow-evolutionary patterns reveal the mesoscopic structure between snapshots of spatial network","authors":"Zhongfu Ma, Di Zhu","doi":"10.1080/13658816.2024.2395953","DOIUrl":"https://doi.org/10.1080/13658816.2024.2395953","url":null,"abstract":"Uncovering the collective behavior of flows among locations is critical to understanding the structure within an ever-changing spatial network. When a network evolves, there may exist subgraphs wit...","PeriodicalId":14162,"journal":{"name":"International Journal of Geographical Information Science","volume":"45 1","pages":""},"PeriodicalIF":5.7,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142223865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Geospatial foundation models for image analysis: evaluating and enhancing NASA-IBM Prithvi’s domain adaptability","authors":"Chia-Yu Hsu, Wenwen Li, Sizhe Wang","doi":"10.1080/13658816.2024.2397441","DOIUrl":"https://doi.org/10.1080/13658816.2024.2397441","url":null,"abstract":"Research on geospatial foundation models (GFMs) has become a trending topic in geospatial artificial intelligence (AI) research due to their potential for achieving high generalizability and domain...","PeriodicalId":14162,"journal":{"name":"International Journal of Geographical Information Science","volume":"24 1","pages":""},"PeriodicalIF":5.7,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142184281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Koichi Ito, Matias Quintana, Xianjing Han, Roger Zimmermann, Filip Biljecki
{"title":"Translating street view imagery to correct perspectives to enhance bikeability and walkability studies","authors":"Koichi Ito, Matias Quintana, Xianjing Han, Roger Zimmermann, Filip Biljecki","doi":"10.1080/13658816.2024.2391969","DOIUrl":"https://doi.org/10.1080/13658816.2024.2391969","url":null,"abstract":"Street view imagery (SVI), an emerging geospatial dataset, is useful for evaluating active transportation infrastructure, but it faces potential biases from its vehicle-based capture method, diverg...","PeriodicalId":14162,"journal":{"name":"International Journal of Geographical Information Science","volume":"6 1","pages":""},"PeriodicalIF":5.7,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142184283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}