Research And Development Of Visulization Web Service Publishing And Matching Based On Function Semantics

With the rapid development of Internet technology, the visualization technology is being widely applie into a lot of fields,such as aviation,meteorology,oceanography, medicine,business process and so on,the data,which needs to be visualized,are also becoming larger and more distributed,autonomic,heterogeneous and dynamic. In the current restrictions on computer hardware and software performance, and the increasing complex computing model and the expansion of the data scale,the traditional visualizeation mode can't well meet the needs of the scientific research.But Web Service technology and grid computing represents one of the most promising advancements for today distributed visualization.The Grid can realize the sharing of information between the heterogeneous systems,the information,such as data,knowledge resources and so on.And the web service technology can allow interoperability between heterogeneous platforms.As the development of distributed visualization,theare are more and more visualization services.Facing so many visualization services,how to find the suitable visualization web services is the very important for the effective use of visualization web services resources,and visualization web service matching is the key step to solve this problem.As a specific application in visualization domain,visualization web services matching has the common characters of general service matching technologies,and distinct specific characters of visualization technology itself as well.So researching the way of visualization web services'publishing and matching,and developing the system for visualization web services'pubulishing and matching will has very necessary and meaningful. This system will allow users to publish and search visualization web services easily,and make user share the visualization web services conveniently.Nowadays,there are still no reports about visualization web service matching.In Response to this situation,we commit an initial exploration on how to publish and match services in visualization domain.Our works and achievements include as following:1. The semantic descriptions of visualization web service After researching the visualization technology,semantic web service description language OWL-S and ontology language OWL,the thesis designs a service descryption model for the visualization web service,and build a library of visualization services.it will regulate the service description for visualization web service,and can eliminates the problem of service description heterogeneous.2. Visualization web service publishing and matchingBy studying the characteristics of visualization tehnology,the thesis design a way for publishing visualization web service,which is according to visualization process.At the same time,the thesis researchs the existing similarty measure which bases on semantic distance-depth.With considering the concept's binary relations and concept depth,it propos an improved distance-based semantic similarity algorithm.Baseing on this improved algorithm and considering the characteristics of visualization techniques,the thesis designs a visualization web service matching algorithm which is base on functional semantic and has multi-level matching.3. The design and developing of visualization web service publishing and matching model.In order to manage and share the visualization web service well,the thesis design a Visualization web service publishing and matching model which bases on the results of researching the visualization web service's publishing and matching.And we develops a model system bases on that visualization web service publishing and matching model.4. System performance evaluationThe thesis constructs many visualization web service to authentic the feasibility and effectiveness of the visualization web services publishing and matching model system,and analysis the test results by recall,precision and response time.This work is funded by Wuhan international cooperation project,"Study and Implementation on Semantic-based visualization services Publishing and Matching Platform"(Project number:200970634269).