Geography Information Web Service Semantic Description and Automatic Discovery Based on Web Service and OWL-S

2009 ◽  
Author(s):  
Liang Hong ◽  
Zongyi He ◽  
Jian Xiang ◽  
Shixiang Li
Keyword(s):  
Web Service ◽  
Semantic Description ◽  
Automatic Discovery ◽  
Geography Information

A QoS-aware approach for runtime discovery, selection and composition of semantic web services

2016 ◽  
Vol 12 (2) ◽  
pp. 177-200 ◽  
Author(s):  
Sanjay Garg ◽  
Kirit Modi ◽  
Sanjay Chaudhary
Keyword(s):  
Web Services ◽  
Semantic Web ◽  
Web Service ◽  
User Satisfaction ◽  
Service Discovery ◽  
Semantic Web Services ◽  
Functional Requirements ◽  
Semantic Description ◽  
Content Type ◽  
The Web

Purpose Web services play vital role in the development of emerging technologies such as Cloud computing and Internet of Things. Although, there is a close relationship among the discovery, selection and composition tasks of Web services, research community has treated these challenges at individual level rather to focus on them collectively for developing efficient solution, which is the purpose of this work. This paper aims to propose an approach to integrate the service discovery, selection and composition of Semantic Web services on runtime basis. Design/methodology/approach The proposed approach defined as a quality of service (QoS)-aware approach is based on QoS model to perform discovery, selection and composition tasks at runtime to enhance the user satisfaction and quality guarantee by incorporating non-functional parameters such as response time and throughput with the Web services and user request. In this paper, the proposed approach is based on ontology for semantic description of Web services, which provides interoperability and automation in the Web services tasks. Findings This work proposed an integrated framework of Web service discovery, selection and composition which supports end user to search, select and compose the Web services at runtime using semantic description and non-functional requirements. The proposed approach is evaluated by various data sets from the Web Service Challenge 2009 (WSC-2009) to show the efficiency of this work. A use case scenario of Healthcare Information System is implemented using proposed work to demonstrate the usability and requirement the proposed approach. Originality/value The main contribution of this paper is to develop an integrated approach of Semantic Web services discovery, selection and composition by using the non-functional requirements.

Pervasive Information Systems Adaptation Challenges

2017 ◽  
Vol 9 (4) ◽  
pp. 14-32
Author(s):  
Fatma Achour ◽  
Anis Jedidi ◽  
Faiez Gargouri
Keyword(s):  
Information System ◽  
Web Service ◽  
Contextual Information ◽  
Relevant Information ◽  
Semantic Description ◽  
Notification System ◽  
Classical Information ◽  
New Information ◽  
Service Creation ◽  
Pervasive System

Initially, a significant number of contextual information can be employed to describe the pervasive system. Hence, to design this type of system, there is a stern need for a new information system. Unlike the classical information system, the new system integrates the mobile devices characterized by different hardware and software capacity and other useful devices. Therefore, most pervasive information system designers provide mechanisms and architectures to effectively save, recover and submit the most relevant information to the user regardless of location, time and the user's equipment which are independent of the network constraints. In this paper, the authors present a model to describe the pervasive information system through the use of the existing contextual models. In the same context, they suggest a semantic description to adapt the users to six categories of contextual information by taking the semantic-web-service creation as a basis. Finally, they present the semantic rules applied to the intended description and notification system to validate these rules.

scholarly journals Semantic Web Services: Service Discovery and Invocation Planning

1970 ◽  
Vol 2 (1) ◽  
pp. 9-15
Author(s):  
Kati Limapichat ◽  
Sukasom Chaiyakul ◽  
Avani Dixit ◽  
Ekawit Nantajeewarawat
Keyword(s):  
Web Services ◽  
Web Service ◽  
Service Discovery ◽  
Description Logic ◽  
Background Knowledge ◽  
Knowledge Bases ◽  
Semantic Web Services ◽  
Prototype System ◽  
Knowledge Reasoning ◽  
Automatic Discovery

With the expanse of internet, web programmers have wide choice of web services available to them. A need arises for automatic discovery of required web services and construction of an appropriate sequence of invocation thereof. In this paper, we present a framework for automation of this task based on currently emerging technologies such as ontological knowledge bases, OWL, OWL-S, WSDL, Description Logic (DL), etc. Background-knowledge ontologies are created based on which semantic meanings of web services can be given through OWL-S. An agent employs OWL-S API to extract web service metadata, and applies a DL inference engine, called Racer, for reasoning with the metadata with respect to given background knowledge. Reasoning tasks performed by Racer include profile matchmaking, input/output subsumption testing, and preconditions/effects analysis, which are basic mechanisms for web services discovery and invocation planning. A prototype system has been implemented.

A Personalized Approach for Web Service Discovery in Distributed Environments

2018 ◽  
pp. 308-339
Author(s):  
Nadia Ben Seghir ◽  
Okba Kazar ◽  
Khaled Rezeg
Keyword(s):  
Web Services ◽  
Web Service ◽  
Mobile Agent ◽  
Service Discovery ◽  
User Profile ◽  
Point Problem ◽  
Distributed Environments ◽  
Customer Requirements ◽  
Semantic Description ◽  
Personalized Approach

Web services are meaningful only if potential users may find and execute them. Universal description discovery and integration (UDDI) help businesses, organizations, and other web services providers to discover and reach to the service(s) by providing the URI of the WSDL file. However, it does not offer a mechanism to choose a web service based on its quality. The standard also lacks sufficient semantic description in the content of web services. This lack makes it difficult to find and compose suitable web services during analysis, search, and matching processes. In addition, a central UDDI suffers from one centralized point problem and the high cost of maintenance. To get around these problems, the authors propose in this chapter a novel framework based on mobile agent and metadata catalogue for web services discovery. Their approach is based on user profile in order to discover appropriate web services, meeting customer requirements in less time and taking into account the QoS properties.

Functional Components Specification in the Semantic SOA-Based Model

2011 ◽  
pp. 277-291
Author(s):  
Tariq Mahmoud ◽  
Jorge Marx Gómez ◽  
Timo von der Dovenmühle
Keyword(s):  
Web Services ◽  
Semantic Web ◽  
Web Service ◽  
Efficient Solution ◽  
Reference Model ◽  
Semantic Web Services ◽  
Automatic Discovery ◽  
Transformation Functions ◽  
Semantic Techniques ◽  
Functional Components

Semantic Web Services are providing means for (semi-) automatic discovery, composition, and execution of Web Services. However, these new emerging semantic techniques seem to be inaccurate to be used in terms of semanticizing the capabilities of Web Services and the requests of Web Services consumers. This comes from the blurred representation of their involved ontologies. This chapter presents a semantic Web-Service-based reference model that is mainly relying on the idea of applying lightweight semantics to Web Services in order to have an efficient solution for different business domains. The model advances the reusability of its components and reduces the necessity of data transformation functions in business process descriptions. Furthermore, technical aspects about the core prototypical implementation are described.

scholarly journals A Framework for Automatic Web Service Discovery Based on Semantics and NLP Techniques

2011 ◽  
Vol 2011 ◽  
pp. 1-7 ◽  
Author(s):  
Asma Adala ◽  
Nabil Tabbane ◽  
Sami Tabbane
Keyword(s):  
Web Services ◽  
Semantic Web ◽  
Natural Language ◽  
Web Service ◽  
Language Processing ◽  
Service Discovery ◽  
Semantic Web Service ◽  
Semantic Web Technologies ◽  
Web Service Discovery ◽  
Automatic Discovery

As a greater number of Web Services are made available today, automatic discovery is recognized as an important task. To promote the automation of service discovery, different semantic languages have been created that allow describing the functionality of services in a machine interpretable form using Semantic Web technologies. The problem is that users do not have intimate knowledge about semantic Web service languages and related toolkits. In this paper, we propose a discovery framework that enables semantic Web service discovery based on keywords written in natural language. We describe a novel approach for automatic discovery of semantic Web services which employs Natural Language Processing techniques to match a user request, expressed in natural language, with a semantic Web service description. Additionally, we present an efficient semantic matching technique to compute the semantic distance between ontological concepts.

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