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For the heterogeneous database in different physical, it was a key problem how to guarantee the user data synchronization heterogeneous database. This paper analyzed data synchronization system for the distributed heterogeneous database, the extracting module, data integration module, data update module and put forward a concrete solution.
The enlarged anchor-root at the bottom for rock bolts is considered as the very helpful measure for improving the anti-pullout capacity of transmission tower foundation design in mountain area. It is a key problem for estimating the action of anchor-root at the bottom of full-length bonded rock bolts. Two types of bolts tests were carried out in field to study the action effect of anchor-root. Both...
A correlative rule expresses a relationship between two correlative events happening one after another. These rules are potentially useful for analyzing correlative data, ranging from purchase histories, web logs and program execution traces. In this work, we investigate and propose a syntactic characterization of a non-redundant set of correlative rules built upon past work on compact set of representative...
In order to generating test papers, as required in final or midsemester of any courses, test questions database management system needs effectively algorithm that will help it choose appropriate questions quickly according to the constraints proposed by the teachers. The traditional methods are not well suitable for the test papers that are restricted by multi-factors. In this paper we describe the...
This overview is illustrative for the state of the art and mainly focuses on the literature for determination arsenic-containing agents and their correlative toxic compounds near decade. Chromatographic and mass spectrometric techniques are primarily used for the identification and quantification of a broad field of arsenic-containing agents in environmental samples and neutralization masses, obtained...
Network always suffers from the traffic anomaly such as router rate change, device restart or the worm attack. The early detection of unusual anomaly in the network is a key to fast recover and avoidance of future serious problem to provide a stable network transmission. In this paper we present a statistical approach to analysis the distribution of network traffic to identify the normal network traffic...
In this paper it firstly attends to the theoretical foundations of data mining technologies, especially the association rules discovering. Several classes of association rules are defined such as transitive quantifiers, double transitive quantifiers and founded-equivalent transitive quantifiers, e.t. and discussed these properties of some 4ft quantifiers. Then based on the procedure 4ft-Miner some...
Existing algorithms that mine graph datasets to discover patterns corresponding to frequently occurring sub-graphs can operate efficiently on graphs that are sparse, contain a large number of relatively small connected components, have vertices with low and bounded degrees, and contain well-labeled vertices and edges. However, for graphs those do not share these characteristics, these algorithms become...
In this paper, a novel technique was present for mining complete correlation itemset, named as NLCD(non-linear correlation discovery) from hereon. In the first, it employ the vertical representation of a database, and then to find the direction between the correlative itemsets with fast processing and lots of them through the whole, including many kinds of correlation. Transaction ids of each itemset...
Now it is much more prevalent to mine complex data in the fields of data mining and the main methods include the experience and technology of no-structer data mining. On account of the flexible practicability and broad appliance of graph theory and technology, the research of graph-based data mining has presently been becoming an important direction in this domain. In this paper, knowledge discovery...
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