This study investigates to what extent collaborative knowledge construction can be fostered by providing students with visualization tools as structural support. Thirty-two students of Educational Psychology took part in the study. The students were subdivided into dyads and asked to solve a case problem of their learning domain under one of two conditions: 1) with content-specific visualizatio...

With the development and improvement of modern surveying remote-sensing technology, data in fields remote sensing have grown rapidly. Due to characteristics large-scale, heterogeneous diverse surveys loose organization data, effectively obtaining information knowledge from can be difficult. Therefore, this paper proposes a method using ontology for integration. Based on heterogeneous, decentral...