Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Integration method of Deep Web query interface based on tree merging

A technology of query interface and integration method, which is applied in the field of Deep Web query interface integration based on tree merging, can solve problems such as ignoring the structural relationship of query attributes, lack of scalability, and failure to mine structured information of query attributes, etc., to achieve good scalability , improve the effect of matching accuracy

Inactive Publication Date: 2010-03-10
ZHEJIANG UNIV
View PDF0 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still some limitations in the existing research: first, the current research adopts plane modeling for the query interface, and does not mine the structural information between the query attributes; The structural relationship between the query attributes is not clear, so the final integration interface cannot inherit the structural characteristics of the original interface; finally, lack of scalability, many previous studies have used clustering methods to group matching attributes into the same cluster. The new interface needs to be integrated, and all query interfaces must be re-clustered

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Integration method of Deep Web query interface based on tree merging
  • Integration method of Deep Web query interface based on tree merging
  • Integration method of Deep Web query interface based on tree merging

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The technical solution of the present invention will be further described in conjunction with specific implementation and examples.

[0022] 1. As shown in the accompanying drawings, the specific implementation process and working principle of the present invention are as follows:

[0023] 1) Carry out pattern tree modeling on the query interface after pattern extraction, model all query interfaces to be integrated with pattern tree, and generate pattern tree set S={S 1 , S 2 …S n};

[0024] 2) analyze the semantics of the leaf nodes in the pattern tree, and calculate the similarity of different nodes in the pattern tree;

[0025] 3) Use the similarity calculation method in step 2) to perform attribute matching of the pattern tree, and then use a pairwise tree-based merging method to merge the pattern trees in pairs to finally generate an integrated interface;

[0026] 4) According to the merging track recorded in the merging process of step 3), the mapping relation...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an integration method of Deep Web query interface based on tree merging. A pattern tree is used for representing the query interface, and the structural features of the tree are utilized to embody the logical relation implied in the physical layout between query properties. Except for calculating the semantic similarity of attribute in conventional pattern matching, the matching process also introduces the structural similarity of attribute in the pattern tree, puts forward the method for calculating the structural similarity between nodes, thereby improving the accuracy of attribute matching. The integration of query interface is realized based on tree merging, which can not only inherit the structural features of the initial query interface, but also realize the accession of new query interfaces by one merging with good expansibility. Except for generating integration interface, the invention can also conveniently generate the mapping relation of attributes between the original query interface and the integration interface.

Description

technical field [0001] The invention relates to Deep Web data integration, vertical search engine and information extraction system technology, in particular to a Deep Web query interface integration method based on tree merging. Background technique [0002] With the rapid development of the Internet, the number of Web online databases has also shown explosive growth. As early as 2004, the survey report of UIUC University showed that the number of websites with online databases had reached 307,000, and the number of databases behind them had reached 366,000-535,000, covering various fields in the real world. Different websites provide query interfaces with different query capabilities for databases in the same field, so users have to visit the query interfaces of each website one by one to obtain more comprehensive data. In order to avoid these tedious and inefficient queries, it is imminent to integrate data from various data sources. The first thing to be solved in data...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06F17/30
Inventor 胡天磊陈珂陈刚寿黎但陶然
Owner ZHEJIANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com