This paper proposes a novel intelligent estimation algorithm in Wireless Sensor Network(WSN) nodes location based on Free Search(FS) to improve the precision in location estimation.

This paper presents ESEquivPS extension support equivalency pruning strategy, a new search space pruning strategy for mining maximal frequent itemsets to effectively reduce the search space.

Based on the distribution of fitness and characteristics of binary-coding, We improved GA by reducing and moving the search space.

It uses the concepts to restore information,partition the search space to gain the concepts and reduce the amount of the search space by ordering items,merging the equivalence subspaces and discard- ing the invalid subspaces under the precondition of the correctness of results.

In order to meet the high requirement of reliability of city power, the paper studys that the monitor way of electric circuitry based on GSM network by the model of electric circuitry GIS topology and introduces the theory of monitor and system structure, discussing the approach to establish spatial search of circuitry dominative scope based on the site of monitor spot.

This paper discusses the octree-based spatial search and intersection algorithm including cell distribution and intersection computing based on octree.