The topological map is constructed by defining the spatial relationship between adjacent nodes and each node that has geometric information about its circumference. A laser range finder is used as the ...

School of Mathematical Sciences, Hebei Normal University, No. 20 Road East. 2nd Ring South, Yuhua District, Shijiazhuang, Hebei, 050024 China Center For Topology and Geometry Based Technology, Hebei ...

and updates the map by using topological approach. We propose a map building method using a growing topological map. Finally we discuss the effectiveness of the proposed methods through several ...

An illustration of a magnifying glass. An illustration of a magnifying glass.

A preliminary report released by the National Weather Service in Jackson, Kentucky May 21 provides details about the tornado's path and strength. It travelled 55.6 miles, reaching peak speeds of ...

A preliminary report released by the National Weather Service in Jackson, Kentucky May 21 provides details about the tornado's path and strength. It travelled 55.6 miles, reaching peak speeds of 170 ...