isprs annals IV 4 W2 97 2017
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In this paper, we undertake a feasibility study of using the field stream model and the open source Data Stream Engine (DSE) Apache Spark(Apache Spark, 2017) to implement a
In this study a regional scale geographically weighted regression model was developed in order to retrieve daily seamless surface concentration of PM 2.5 over
Thus, along with traditional data sources such as census, SEDE is able to provide tweet based population statistics such as total tweets and total users for different spatial
a) If the number of polygons of the current node is less than the pre-defined minimum threshold, stop to divide the node. b) If the depth of the current tree is greater
The proposed framework is composed of two parts: data management and data processing as shown in Figure 1. In the data management part, the Lidar data can be directly fetched
Thus, based on the ship type attribute for each vessel, initial data filtering considering both the vessels most likely to carry migrants (cargo and fishing) as well as
Geohashing is a data encoding technique to produce spatial bounding boxes used for binning of nearby points based on Z-order curves (Morton, 1966). Unlike many of the other
Whether for the region of immutable image content, examined by spatio-temporal texture or for the dynamic image part, described by means of the alternatively engaged
