Research on the Data Gravitation Based Classification Method and Network Anormaly Detection Model;

The standardization of DCS based on the data engine and PLC;

The integrating and sharing of GIS sata based on the technology of data engine;

Using the data engine technology in the configuration software solved the problems of PLC program and on line modification.

A method used for disposing the theodolite′s guidance data is presented The method fuses guidance data by means of the algorithm of parameter estimation In this way it will make up for shortage of traditional method The disposition of the theodolite′s guidance data is carried out The results show that the theodolite′s guidance accuracy can be obviously improved Its guide errors is less than 0 50

The realtime guidance data which is produced by dynamic target is provided for testing external lead function of photoelectric theodolite,according to the need of indoor checking and testing of the dynamic characteristic of theodolite s tracking system.

This paper proposes a neural network based incremental data indexing method.

In order to realize data storage and search, various biotechniques were touched on, such as selecting DNA carrier and receptor cell, creating data index, etc.

To solve the problem that MDS cannot effectively be used for incremental data index, the paper proposes a neural network based incremental data indexing approach.

An organization approach of massive terrain dataset based rectangular bintree and nonpointer data index is put forward for organization and management of massive terrain dataset.