Conference Papers
Permanent URI for this collectionhttps://idr.nitk.ac.in/handle/123456789/28506
Browse
13 results
Search Results
Item Quality driven web service selection and ranking(2008) D’Mello, D.A.; Ananthanarayana, V.S.The increasing number of Web service providers with numerous functionally similar or same Web services produced a new problem of choosing a suitable Web service for the requester based on his expectations. The Quality of Service (QoS) can be used to select and rank functionally similar Web services. In this paper we define four Web service provider qualities to distinguish functionally similar and qualitatively competitive Web services. The main objective of this paper is to explore the mechanism which breaks the tie that may arise among functionally similar and qualitatively equivalent (competitive) Web services during Web service selection and ranking. © 2008 IEEE.Item Semantic Web service selection based on business offering(2008) D’Mello, D.A.; Kaur, I.; Ram, N.; Ananthanarayana, V.S.Semantic Web service discovery finds a match between service requirement and service advertisements based on the semantic description. The discovery mechanism does not consider quality and business offers of advertised Web services. In this paper, we propose ontology based Semantic Web service architecture for selection which recommends the best match for the requester. We design semantic broker which allows providers to advertise their services by creating OWL-S service profile consisting of functional, quality and business offers. The broker computes and records information for matchmaking during service publishing to improve the performance. The broker reads requirements from the requester and finds the best (profitable) Web service by matching functionality, capability, quality and business offers. © 2008 IEEE.Item A QoS broker based architecture for dynamic web service selection(2008) D’Mello, D.A.; Ananthanarayana, V.S.; Santhi, T.The increasing number of Web services over the Web makes the requester to use tools to search for suitable Web services available throughout the globe. UDDI is the first step towards meeting these demands. However the requester's demand may include not only functional aspects of Web services but also non-functional aspects like Quality of Service (QoS). There is a need to select the most suitable (qualitatively optimal) Web service based on the requester's QoS requirements and preferences. In this paper we explore the different types of requester's QoS requirements (demands) with illustrations. We propose the QoS broker based architecture for dynamic Web service selection which facilitates the requester to specify his/her QoS requirements along with functional requirements. The paper presents the Web service selection mechanism which selects the best (most suitable) Web service based on the requester's functional and quality requirements. © 2008 IEEE.Item Web service selection based on Requester's Offering constraints(2008) D’Mello, D.A.; Ananthanarayana, V.S.; Achar, R.Web service selection is a mechanism to select the most suitable Web service that satisfies requester's various nonfunctional requirements. In e-business environment, the business offers play a major role in attracting a numerous consumers. In order to find the most profitable service offering a valuable business offer, there is a need for the selection mechanism to rank the functionally similar Web services based on the provider's business offers and the requester's requirements on various business offers. In this paper, we propose an XML model to represent requester's complex requirements on multiple business offers. The paper explores the Web service selection mechanism which selects and ranks the functionally similar Web services based on the requester's requirements on business offers. The paper also presents the broker based architecture for business offer aware Web services publishing and selection. Finally, we present a scheme to represent the requester's alternative requirements on business offers and extend the selection mechanism to handle a set of alternative business offering requirements.© 2008 IEEE.Item Business offer driven dynamic web service selection(2008) D’Mello, D.A.; Ananthanarayana, V.S.; Achar, R.In today's business environment, the business offers have an inevitable importance in giving the buyer the most profitable deal. In order to improve the business, the service providers attract the customers by advertising a lot of attractive offers. There is a need for the selection mechanism which accepts the requester's various requirements on business offers to find the most profitable service. In this paper, we identify various business offers of service providers in e-business domain and broadly classify them based on requester's point of view as, unconditional business offers, conditional business offers and probabilistic business offers. We also provide a vocabulary for various business offers of service providers. The paper explores different types of requester's requirements on business offers and proposes a language to express such requirements on various business offers. We propose a tree structure to represent requester's complex business offer requirements for the business offer driven Web service selection.Item A tree structure for Web service compositions(2009) D’Mello, D.A.; Ananthanarayana, V.S.The composition of Web services is gaining a considerable momentum as an approach to the effective integration of distributed, heterogeneous and autonomous applications to build more sophisticated and value added services. Algorithms are needed to select the best services for the individual tasks of the composition. QoS is an important criterion to select the best service for the tasks of composition. The objective of selection algorithm is to maximize the QoS of the composition based on the composite service provider's (CSP) QoS requirements. In this paper, we define the various business offers (service offers) of Web services. We classify the CSP's requirements defined on the QoS and service offers based on its structure. We propose a tree structure to represent the CSP's requirements defined on the multiple QoS properties and service offers involving AND and OR operators with varied preferences. © 2009 ACM.Item Effective web service discovery based on functional semantics(2009) D’Mello, D.A.; Ananthanarayana, V.S.Web service discovery is a mechanism which facilitates an access to the Web service descriptions. UDDI facilitates the discovery based on the service functionality through keyword and category matching. Such discovery techniques do not consider the semantics and user context as they are too syntactic in nature. In this paper, we propose a well formed functional semantics to describe an operation of a Web service. We design the extendible functional knowledge to map the requested or published operation descriptions into an abstract operation. The experimentation shows that, the proposed functional semantics based discovery mechanism has better performance in terms of precision and recall. © 2009 IEEE.Item A tree structure for efficient web service discovery(2009) D’Mello, D.A.; Ananthanarayana, V.S.Web service discovery is a mechanism to obtain descriptions of Web services based on the requester's functional or non-functional requirements. UDDI is the first step towards meeting the requester's functional requirements. The Web service architecture involving UDDI does not provide an efficient and effective discovery mechanism. The UDDI is large repository and its information is either distributed or replicated at several sites to improve fault tolerance. To improve the performance of UDDI based Web service discovery, we propose the broker based architecture for Web service publishing and discovery. The broker of the architecture stores the abstract Web service information and the functional knowledge for an effective Web service discovery. The paper explores Service Operation Tree (SOT) to store Web service information in a compact way which also speeds up the discovery process. The authors also analyse and illustrate the discovery mechanism backed by empirical results. © 2009 IEEE.Item Challenges (research issues) in web services(2010) D’Mello, D.A.; Ananthanarayana, V.S.; Lakshmi Narasimhan, V.L.The Web services paradigm promises to enable rich, flexible and dynamic inter-operation of highly distributed and heterogeneous applications using Web standards. The ability to discover, select and compose inter-organizational and heterogeneous services available on the Web at runtime in order to facilitate application reuse is an interesting problem in Web services. An effective mechanism for discovery, selection and composition of Web services, based on the requester's complex functional and nonfunctional requirements is still an issue of open research. In this paper, authors explore the major Challenges (open problems) related to Web service description, discovery, selection and compositions. © 2010 IEEE.Item A review of dynamic web service description and discovery techniques(2010) D’Mello, D.A.; Ananthanarayana, V.S.The increasing number of Web service providers over the Web has prompted the need for research in service description and discovery. The Web service requesters need tools, in order to search suitable services that satisfy the requester's needs. The Web service discovery is defined as a mechanism that allows the service requester to gain an access to the service descriptions and make them available to the application at runtime for binding. The service requesters can retrieve a service descriptions at design time or at run time from the service description repository i.e. service registry like UDDI. The lookup mechanism must support a query mechanism to explore services based on the type of interface, the binding information (protocols), properties (QoS properties), the taxonomy of service and the business (provider) information etc. This paper reviews (and classifies) various architectures and matchmaking mechanisms defined in literature for the dynamic Web service discovery. © 2010 IEEE.