The checking survey in Open mine is one of the most frequent and important work.It plays the role of forming a connecting link between open mine planning and pro- duction.Traditional checking method has such disadvant...The checking survey in Open mine is one of the most frequent and important work.It plays the role of forming a connecting link between open mine planning and pro- duction.Traditional checking method has such disadvantages as long time consumption, heavy workload,complicated calculating process,and lower automation.Used GPS and GIS technologies to systematically study the core issues of checking survey in open mine. A detail GPS data acquisition coding scheme was presented.Based on the scheme an algorithm used for computer semiautomatic cartography was made.Three methods used for eliminating gross errors from raw data which were needed for creating DEM was dis- cussed.Two algorithms were researched and realized which can be used to create open mine fine DEM model with constrained conditions and to dynamically update the model. The precision analysis and evaluation of the created model were carried out.展开更多
Traditional normalized tree edit distances do not satisfy the triangle inequality. We present a metric normalization method for tree edit distance, which results in a new normalized tree edit distance fulfilling the t...Traditional normalized tree edit distances do not satisfy the triangle inequality. We present a metric normalization method for tree edit distance, which results in a new normalized tree edit distance fulfilling the triangle inequality, under the condition that the weight function is a metric over the set of elementary edit operations with all costs of insertions/deletions having the same weight. We prove that the new distance, in the range [0, 1], is a genuine metric as a simple function of the sizes of two ordered labeled trees and the tree edit distance between them, which can be directly computed through tree edit distance with the same complexity. Based on an efficient algorithm to represent digits as ordered labeled trees, we show that the normalized tree edit metric can provide slightly better results than other existing methods in handwritten digit recognition experiments using the approximating and eliminating search algorithm （AESA） algorithm.展开更多
On the basis of the 25 9-point closed-net-diagrams given by Guo Qiti, the 8-point straight-line-net-diagrams of binary 6-phase (n+4)multisystems have been derived. Any 8-point straight-line-net-diagram constitutes par...On the basis of the 25 9-point closed-net-diagrams given by Guo Qiti, the 8-point straight-line-net-diagrams of binary 6-phase (n+4)multisystems have been derived. Any 8-point straight-line-net-diagram constitutes part of its corresponding 9-point closed-net-diagram. It means that the removal of one appropriate invariant point from a 9-point closed-netdiagram would result in an 8-point straight-line-net-diagram. If there exists neither concave triangle(s) nor concave quadrilateral(s)in the residual part of a 9-point closed-net-展开更多
基金the Ph.D.Program Research Foundation from MOE of China(20060147004)Research Foundation from Liaoning Technical University(04A02001)
文摘The checking survey in Open mine is one of the most frequent and important work.It plays the role of forming a connecting link between open mine planning and pro- duction.Traditional checking method has such disadvantages as long time consumption, heavy workload,complicated calculating process,and lower automation.Used GPS and GIS technologies to systematically study the core issues of checking survey in open mine. A detail GPS data acquisition coding scheme was presented.Based on the scheme an algorithm used for computer semiautomatic cartography was made.Three methods used for eliminating gross errors from raw data which were needed for creating DEM was dis- cussed.Two algorithms were researched and realized which can be used to create open mine fine DEM model with constrained conditions and to dynamically update the model. The precision analysis and evaluation of the created model were carried out.
文摘Traditional normalized tree edit distances do not satisfy the triangle inequality. We present a metric normalization method for tree edit distance, which results in a new normalized tree edit distance fulfilling the triangle inequality, under the condition that the weight function is a metric over the set of elementary edit operations with all costs of insertions/deletions having the same weight. We prove that the new distance, in the range [0, 1], is a genuine metric as a simple function of the sizes of two ordered labeled trees and the tree edit distance between them, which can be directly computed through tree edit distance with the same complexity. Based on an efficient algorithm to represent digits as ordered labeled trees, we show that the normalized tree edit metric can provide slightly better results than other existing methods in handwritten digit recognition experiments using the approximating and eliminating search algorithm （AESA） algorithm.
文摘On the basis of the 25 9-point closed-net-diagrams given by Guo Qiti, the 8-point straight-line-net-diagrams of binary 6-phase (n+4)multisystems have been derived. Any 8-point straight-line-net-diagram constitutes part of its corresponding 9-point closed-net-diagram. It means that the removal of one appropriate invariant point from a 9-point closed-netdiagram would result in an 8-point straight-line-net-diagram. If there exists neither concave triangle(s) nor concave quadrilateral(s)in the residual part of a 9-point closed-net-
