An autonomic service discovery mechanism to support pervasive devices accessing the semantic grid

2009 ◽  
Vol 1 (1) ◽  
pp. 34 ◽  
Author(s):  
Tao Guan ◽  
Ed Zaluska ◽  
David De Roure
Keyword(s):  
Service Discovery ◽  
Semantic Grid

scholarly journals Towards a Protocol for the Attachment of Metadata to Grid Service Descriptions and Its Use in Semantic Discovery

2004 ◽  
Vol 12 (4) ◽  
pp. 201-211 ◽  
Author(s):  
Simon Miles ◽  
Juri Papay ◽  
Terry Payne ◽  
Michael Luck ◽  
Luc Moreau
Keyword(s):  
Distributed Systems ◽  
Service Discovery ◽  
Large Scale ◽  
Grid Service ◽  
Semantic Grid ◽  
Essential Component ◽  
Open Distributed Systems ◽  
Semantically Enhanced ◽  
Semantic Service ◽  
Semantic Discovery

Service discovery in large scale, open distributed systems is difficult because of the need to filter out services suitable to the task at hand from a potentially huge pool of possibilities. Semantic descriptions have been advocated as the key to expressive service discovery, but the most commonly used service descriptions and registry protocols do not support such descriptions in a general manner. In this paper, we present a protocol, its implementation and an api for registering semantic service descriptions and other task/user-specific metadata, and for discovering services according to these. Our approach is based on a mechanism for attaching structured and unstructured metadata, which we show to be applicable to multiple registry technologies. The result is an extremely flexible service registry that can be the basis of a sophisticated semantically-enhanced service discovery engine, an essential component of a Semantic Grid.

Semantic - based service discovery in grid environment

2020 ◽  
Vol 39 (4) ◽  
pp. 5263-5272
Author(s):  
Kun Shang
Keyword(s):  
Service Discovery ◽  
Functional Model ◽  
Threshold Value ◽  
Prototype System ◽  
Model Matching ◽  
Distributed Resources ◽  
Matching Algorithm ◽  
Semantic Grid ◽  
Correlation Degree ◽  
Matching Degree

In the process of informatization, there are also some new problems, mainly information can’t be shared and integrated, distributed resources can’t be used effectively, these problems make the industry face new challenges. The goal of this paper is to combine the grid technology and ontology organically, to build a unified information system integration and interoperation platform based on semantics, to realize information sharing and accelerate the pace of informatization. The method is to construct the whole structure of the system according to the actual needs of the system. This paper firstly analyzes the current research status and existing problems of semantic grid service matching, and proposes a semantic layered matching algorithm based on Massimo Paolucci elastic matching algorithm. To verify the feasibility and effectiveness of the hierarchical matching algorithm based on semantics, a prototype system named SGSM was designed and its functional model, matching process and performance were studied. Experimental results show that for the semantic-based hierarchical matching algorithm proposed in this paper, the threshold value of service semantic correlation degree is 0.84, the threshold value of service basic concept matching degree is 0.89, the threshold value of service comprehensive similarity degree is 0.66, and the threshold value of service quality matching degree is 0.78. Statistics through the experiment, the above three methods of recall, respectively, 33%, 62%, 85%, the precision is respectively: 29%, 57%, 88%, and illustrate the hierarchical matching algorithm based on semantic is feasible in practical application, compared with the traditional service based on keyword matching algorithm and Massimo Paolucci elastic matching algorithm on the recall and precision are improved significantly.

A Study on Different Web Service Discovery Approaches

2018 ◽  
Vol 6 (9) ◽  
pp. 311-314
Author(s):  
Rahul P. Mirajkar ◽  
Nikhil D. Karande ◽  
Surendra Yadav
Keyword(s):  
Web Service ◽  
Service Discovery ◽  
Web Service Discovery
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