Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Zhong-Xiao Hao"'
Autor:
Song Li, Zhong-Xiao Hao
Publikováno v:
Chinese Journal of Computers. 33:2248-2257
Autor:
Ze Xue Yang, Zhong Xiao Hao
Publikováno v:
Advanced Materials Research. 187:752-757
Spatial join query is a most important query in the spatial database.How to improve the efficiency of a spatial join is a serious question.In this paper,we propose a new algorithm to process spatial join problem.The algorithm is based on the QR-tree,
Publikováno v:
Applied Mechanics and Materials. :1269-1273
The entropies of structure, information and the effectiveness entropy between knowledge and organization structure are main entropy sources of supply chain network. Entropy model of fractal supply chain network organization structure is established.
Publikováno v:
Applied Mechanics and Materials. :1265-1268
The importance of case-retrieving method selection in the CBR system is analyzed, and the defaults of traditional retrieving methods which make use of fuzzy distance to describe the distance in the similar cases are pointed out. A model for case- ret
Publikováno v:
Applied Mechanics and Materials. :1323-1327
The importance of information security in e-commerce is expatiated. In response to these problems, a digital signature approach based on the PKI is presented with digital signature technology. An approach for digital signature based on PKI is designe
Publikováno v:
Applied Mechanics and Materials. :1342-1345
The importance of case-retrieving method selection in the CBR system is analyzed, and the defaults of traditional retrieving methods which make use of fuzzy distance to describe the distance in the similar cases are pointed out. A model for case- ret
Autor:
Zhong-xiao Hao, Yun-bin He
Publikováno v:
The Journal of China Universities of Posts and Telecommunications. 15:64-78
A general trajectory model based on moving point is introduced, which can model low dimension and high dimension moving objects. Discrete update strategies are discussed. On this basis a 2-level indexing structure based on R-tree is put forward. It i
Autor:
Zhong-xiao Hao, Yong-shan Liu
Publikováno v:
Journal of Computer Science. 1:510-514
This study presents the spatio-temporal constraint relationships of moving objects by employing Petri Net technology. The spatial constraints of moving objects are first presented in this study based on the V4I[1] theory, then the temporal constraint
Publikováno v:
2009 Fourth International Conference on Internet Computing for Science and Engineering.
In spatial data mining, clustering is one of useful techniques for discovering interesting data in the underlying data objects. The k-means algorithm is probably the most widely applied clustering method. But a major drawback of k-means algorithm is
Autor:
Run-Tao Liu, Zhong-Xiao Hao
Publikováno v:
2007 International Conference on Wavelet Analysis and Pattern Recognition.
In this paper, an index structure - BR-tree for spatial data , is proposed by combining the division for spatial data objects with bi-tree. In the structure, the topological relations between spatial data objects are recorded and the overlap between