Topic
Choropleth map
About: Choropleth map is a research topic. Over the lifetime, 369 publications have been published within this topic receiving 8331 citations. The topic is also known as: blot map.
Papers published on a yearly basis
Papers
1 Nov 2018
TL;DR: Schiewe et al. as mentioned in this paper showed that the visual impact of these maps is influenced by the actual value distribution of the input data and in the case of a classified representation by the data classification method in use, and that important spatial characteristics like extreme values, hot spots or dusters might get lost due to an unfavorably setting of class breaks.
Abstract: Choropleth maps are widely used for the display of relative values associated with areas such as population density of counties. The visual impact of these maps is influenced by the actual value distribution of the input data and in the case of a classified representation by the data classification method in use. However, conventional methods like equidistant, quantiles or Jenks work simply data-driven and do not explicitly consider any given spatial context within the data set. Consequently, important spatial characteristics like extreme values, hot spots or dusters might get lost due to an unfavorably setting of class breaks. With that, the visual impact and follow-up decisions can be largely affected (Schiewe 2016).
3 citations
TL;DR: In this article, the authors tested the applicability and effectiveness of three visualization methods: contiguous cartogram, choropleth maps, and graduated symbols for crime statistics, and the results showed that each of them can be applicable for this purpose but for solving most complex problems contiguous Cartogram method must be improved with using other cartographic variables, also further investigations should be done with nonprofessional people with the other two methods.
Abstract: There are many GIS applications available on the internet showing crime statistics all over the world. The usual visualization methods for these statistics are generally pictograms representing individual crime locations. The visualization of individual crimes raise two problems: they are not able to transmit the real crime situations to the users, because it is not easy to interpret the content of it; the other problem is that they may harm the confidentiality of the victims. Therefore in this study the author tested the applicability and effectiveness of 3 visualization methods: contiguous cartogram, choropleth maps and graduated symbols. The results shows that each of them can be applicable for this purpose but for solving most complex problems contiguous cartogram method must be improved with using other cartographic variables, also further investigations should be done with nonprofessional people with the other two methods.
3 citations
TL;DR: In this paper, the authors present an activity for grade 9-12 students to make choropleth maps, a common type of thematic map that is easy to make once students learn a few basic definitions and procedures.
Abstract: Choropleth maps are a common type of thematic map that is easy to make once students learn a few basic definitions and procedures. After making practice maps with data provided by the teacher, students can make a map with data they have gathered. This activity provides an opportunity to use a range of geographic skills and to review the locations of the 50 states. It is suitable for grades 9–12. If students have access to computers, it is possible for them to create maps that are remarkably professional.
3 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2021 | 19 |
| 2020 | 17 |
| 2019 | 26 |
| 2018 | 17 |
| 2017 | 19 |
| 2016 | 14 |