Geographic knowledge discovery from Web Map segmentation through generalized Voronoi diagrams

Lee, Ickjai; Torpelund-Bruin, Christopher

doi:10.1016/j.eswa.2012.02.129

Cited by 10 publications

(2 citation statements)

References 21 publications

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“…With the advancement of technology and the Internet, web maps have become a tool for gathering the global geographical information in people's daily lives (García, Verdú, Regueras, de Castro & Verdú, 2013). The information provided by web maps can be applied to various fields (eg, business and industry) (Lee & Torpelund-Bruin, 2012), as well as education (Favier & van der Schee, 2012). Many studies have found that the application of web maps allows learners to present digital geographical information through the methods of visualizing, manipulating, reading, inquiring, summarizing and analyzing; it also enhances learners' geographical concepts through dynamic geographical presentation and helps them construct knowledge and develop the concepts of space and reasoning (Broda & Baxter, 2003).…”

Section: Introductionmentioning

confidence: 99%

Development and evaluation of a web map mind tool environment with the theory of spatial thinking and project‐based learning strategy

Hou¹,

Yu²,

Wu³

et al. 2014

Brit J Educational Tech

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The theory of spatial thinking is relevant to the learning and teaching of many academic domains. One promising method to facilitate learners' higher‐order thinking is to utilize a web map mind tool to assist learners in applying spatial thinking to cooperative problem solving. In this study, an environment is designed based on the theory of spatial thinking and developed to help learners engage in project‐based learning that utilizes the proposed web map mind tool for tour planning. The participants were 66 college students, and a quasi‐experimental research design was employed. This study examined the differences in the learning performance and project performance between participants using the web map mind tool (the experimental group) and ordinary Internet search engines (the control group). The results indicate the experimental group performed significantly better than the control group in terms of both learning performance and project performance. In addition, we found that the students in the two groups held a positive learning attitude toward the project activity of tour planning. In terms of students' attitude toward the use of a mind tool, this study only conducted a survey for the experimental group. The results indicated that learners in the experimental group held a positive attitude toward the use of the web map mind tool.

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Section: Introductionmentioning

confidence: 99%

Development and evaluation of a web map mind tool environment with the theory of spatial thinking and project‐based learning strategy

Hou¹,

Yu²,

Wu³

et al. 2014

Brit J Educational Tech

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show abstract

“…VT and DT have been applied in many areas of mathematics and the natural sciences 4 5 6 . For example, people used linear interpolation (based on DT) and natural neighbor interpolation (based on VT) to predict the climate data or geographic data 7 8 . Natural neighbor interpolation and linear interpolation are the methods of spatial interpolation.…”

mentioning

confidence: 99%

Using Delaunay triangulation and Voronoi tessellation to predict the toxicities of binary mixtures containing hormetic compound

Liu

Zheng

et al. 2017

Sci Rep

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Concentration addition (CA) was proposed as a reasonable default approach for the ecological risk assessment of chemical mixtures. However, CA cannot predict the toxicity of mixture at some effect zones if not all components have definite effective concentrations at the given effect, such as some compounds induce hormesis. In this paper, we developed a new method for the toxicity prediction of various types of binary mixtures, an interpolation method based on the Delaunay triangulation (DT) and Voronoi tessellation (VT) as well as the training set of direct equipartition ray design (EquRay) mixtures, simply IDVequ. At first, the EquRay was employed to design the basic concentration compositions of five binary mixture rays. The toxic effects of single components and mixture rays at different times and various concentrations were determined by the time-dependent microplate toxicity analysis. Secondly, the concentration-toxicity data of the pure components and various mixture rays were acted as a training set. The DT triangles and VT polygons were constructed by various vertices of concentrations in the training set. The toxicities of unknown mixtures were predicted by the linear interpolation and natural neighbor interpolation of vertices. The IDVequ successfully predicted the toxicities of various types of binary mixtures.

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The Socio-technical Development of Digital Maps

Hanchard

2024

Geographies of Media

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Geographic knowledge discovery from Web Map segmentation through generalized Voronoi diagrams

Cited by 10 publications

References 21 publications

Development and evaluation of a web map mind tool environment with the theory of spatial thinking and project‐based learning strategy

Development and evaluation of a web map mind tool environment with the theory of spatial thinking and project‐based learning strategy

Using Delaunay triangulation and Voronoi tessellation to predict the toxicities of binary mixtures containing hormetic compound

The Socio-technical Development of Digital Maps

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