A credibility analyzing method of geographical objects from digital maps

ABSTRACT

Digital maps is widely used and appears on all types of platforms for integrating content. However, map media contain a large amount of content and updates. In addition, update times are different for each supplier. Digital maps often display nonexisting geographical objects or do not display newly created geographical objects. In other words, map media has no credibility. Users who believe that a digital map is correct may encounter problems. We propose a calculating method for determining an object's existence value in displayed geographical objects in digital maps for map credibility. In particular, we extract temporal web pages of each geographical object using co-occurring geographical objects. We calculate the degree of existential support using update history of temporal web pages. Finally, we calculate an object existence value based on all degrees of support. We display map content with valid object for deciding map credibility. We developed a prototype system and evaluated our proposed method.

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INDEX TERMS

Primary Classification:
  H. Information Systems
  H.5 INFORMATION INTERFACES AND PRESENTATION (I.7)
      H.5.1 Multimedia Information Systems

General Terms:
Human Factors, Management

Keywords:
digital map, information credibility, spatio temporal DB, user operation