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ISPRS International Journal of Geo-Information, Volume 7, Issue 8

August 2018 - 45 articles

Cover Story: Rural areas in Africa are largely characterized by poor road networks. This poor state of rural roads contributes to the vulnerability of communities in developing countries by hampering access to vital social services and opportunities. In addition, maps of the road networks are largely incomplete and not up-to-date. In this paper, motorcycle taxis, which are a dominant mode of transport in rural areas in Africa, were tracked using affordable GPS data loggers. The resulting GPS trajectories revealed the village-level road networks that are used by rural residents. The results showed that GPS trajectories from motorcycle taxis can improve the map coverage of rural road networks and boost other mapping initiatives like OpenStreetMap (OSM). Specifically, GPS-derived data can improve the coverage of official road maps in rural areas by up to 70% and OSM data by up to 60%. View the paper here.
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Articles (45)

  • Article
  • Open Access
16 Citations
5,464 Views
17 Pages

Using the Spatial Knowledge of Map Users to Personalize City Maps: A Case Study with Tourists in Madrid, Spain

  • María-Teresa Manrique-Sancho,
  • Silvania Avelar,
  • Teresa Iturrioz-Aguirre and
  • Miguel-Ángel Manso-Callejo

The aim of personalized maps is to help individual users to read maps and focus on the most task-relevant information. Several approaches have been suggested to develop personalized maps for cities, but few consider the spatial knowledge of its users...

  • Article
  • Open Access
40 Citations
6,274 Views
19 Pages

Use of Unmanned Aerial Vehicles (UAVs) for Updating Farmland Cadastral Data in Areas Subject to Landslides

  • Edyta Puniach,
  • Agnieszka Bieda,
  • Paweł Ćwiąkała,
  • Anita Kwartnik-Pruc and
  • Piotr Parzych

The purpose of this study was to verify the applicability of unmanned aerial vehicles (UAVs) to update cadastral records in areas affected by landslides. Its authors intended to compare the accuracy of coordinates determined using different UAV data...

  • Article
  • Open Access
9 Citations
3,749 Views
19 Pages

A segmented processing approach of eigenvector spatial filtering (ESF) regression is proposed to detect the relationship between NDVI and its environmental factors like DEM, precipitation, relative humidity, precipitation days, soil organic carbon, a...

  • Article
  • Open Access
23 Citations
7,408 Views
19 Pages

Because of their locality preservation properties, Space-Filling Curves (SFC) have been widely used in massive point dataset management. However, the completeness, universality, and scalability of current SFC implementations are still not well resolv...

  • Article
  • Open Access
11 Citations
6,314 Views
19 Pages

Method for the Analysis and Visualization of Similar Flow Hotspot Patterns between Different Regional Groups

  • Haiping Zhang,
  • Xingxing Zhou,
  • Xin Gu,
  • Lei Zhou,
  • Genlin Ji and
  • Guoan Tang

Interaction among different regions can be illustrated in the form of a stream. For example, the interaction between the flows of people and information among different regions can reflect city network structures, as well as city functions and interc...

  • Article
  • Open Access
34 Citations
6,879 Views
15 Pages

Research on journey-to-crime distance has revealed the importance of both the characteristics of the offender as well as those of target communities. However, the effect of the home community has so far been ignored. Besides, almost all journey-to-cr...

  • Article
  • Open Access
12 Citations
11,694 Views
20 Pages

Identification of Painted Rock-Shelter Sites Using GIS Integrated with a Decision Support System and Fuzzy Logic

  • Ruman Banerjee,
  • Prashant K. Srivastava,
  • A. W. G. Pike and
  • George P. Petropoulos

The conservation and protection of painted rock shelters is an important issue. Throughout the world, if unprotected, they are vulnerable to vandalism or to industrial activities such as quarrying. This research explores the integrated use of a Geogr...

  • Article
  • Open Access
14 Citations
3,958 Views
18 Pages

An INS/Floor-Plan Indoor Localization System Using the Firefly Particle Filter

  • Jian Chen,
  • Gang Ou,
  • Ao Peng,
  • Lingxiang Zheng and
  • Jianghong Shi

Location-based services for smartphones are becoming more and more popular. The core of location-based services is how to estimate a user’s location. An INS/floor-plan indoor localization system, using the Firefly Particle Filter (FPF), is prop...

  • Article
  • Open Access
31 Citations
5,785 Views
23 Pages

Extracting Indoor Space Information in Complex Building Environments

  • Yueyong Pang,
  • Chi Zhang,
  • Liangchen Zhou,
  • Bingxian Lin and
  • Guonian Lv

Indoor space information extraction is an important aspect of reconstruction for building information modeling and a necessary process for geographic information system from outdoor to indoor. Entity model extracting methods provide advantages in ter...

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ISPRS Int. J. Geo-Inf. - ISSN 2220-9964