Chima Adiele

Trinity Western University, Langley, British Columbia, Canada

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Publications (15)0.85 Total impact

  • Chima Adiele
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    ABSTRACT: The convergence of social and technological networks have given impetus to web communities (WCs) as a business enabler in the virtual marketplace. WCs have evolved from social phenomena that have no business dimension to a powerful tool that most successful organizations leverage to create interactions among customers or suppliers of a company’s product. WC becomes economically interesting with the increasing size of the community where members are active participants in sharing ideas and knowledge. There are inherent problems, however, associated with the increasing size of a WC, especially determining the contributions of members in sustaining the community’s interactivity and techniques to promote interactivity in the community. B2C Web community (B2C-WC) has been extensively discussed in the literature. Not much, however, has been done in the area of B2B Web community (B2B-WC). In this paper, we present an interactivity model that dynamically measures the contributions of members of a B2B-WC, and also determines the community’s interactivity level. We design promotional techniques tailored to meet individual member’s needs in a B2B-WC. We use extensive simulation studies to evaluate the performance of our model under various conditions.
    Information Systems Frontiers 01/2011; 13:237-249. · 0.85 Impact Factor
  • C. Adiele
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    ABSTRACT: Advances in information and communication technologies have given impetus to Web-based community (WBC) as a business enabler in the virtual marketplace. A WBC is intentionally designed to promote human interaction and facilitates a customer-driven e-commerce. WBC becomes economically interesting with the increasing size of the community where members are active participants in promoting the aspirations of the community. One of the main problems associated with the increasing size of a WBC is determining the contributions of members in sustaining the communitypsilas interactivity. The use of database logs to track users activities in a WBC does not provide a clear picture of userspsila interactivity level in real time. In this paper, we design a B2B Web-based community interactivity life cycle to understand the dynamics of the community. We present an interactivity model that dynamically measures the contributions of members of the community, and also determines the communitypsilas interactivity level. We use simulation results to evaluate the model under various conditions.
    Digital Information Management, 2008. ICDIM 2008. Third International Conference on; 12/2008
  • Chima Adiele
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    ABSTRACT: Web Communities (WCs) are emerging as business enablers in the electronic marketplace. As the size of the community becomes increasingly large, there is a tendency for some members of the community to use resources provided by the community without necessarily making any contribution. It is, therefore, necessary to determine members’ contributions towards sustaining the community. In this paper, we present a formal framework to dynamically measure the interactivity of members, and indeed the interactivity level of the community. This formal foundation is necessary to eliminate ad hoc approaches that characterize existing solutions, and provide a sound foundation for this new research area. We design an efficient interactivity algorithm, and also implement a prototype of the system.
    Advances in Data and Web Management, Joint 9th Asia-Pacific Web Conference, APWeb 2007, and 8th International Conference, on Web-Age Information Management, WAIM 2007, Huang Shan, China, June 16-18, 2007, Proceedings; 01/2007
  • Chima Adiele, Sylvanus A. Ehikioya
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    ABSTRACT: The Web facilitates a global marketplace that provides an economic platform for application developers, merchants and customers to exchange goods and services from a wide range of domains. As a result, large volume of data now resides on the Web. Access to data distributed over the Web is becoming increasingly difficult because of information overload. A system that transcends the amalgamation of data, and provides easy access to data distributed over the Web is necessary. We present WISE, a correctness preserving approach to integration of Web data sources. We describe components of WISE, including a flexible semistructured data model, a common-term vocabulary, and an efficient integration algorithm that automates the integration process. We formally specify these components and show that the global integrated schema is correct, complete, minimal, and understandable.
    Electronic Commerce Research and Applications. 01/2007; 6:219-232.
  • Chima Adiele
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    ABSTRACT: Web communities (WC) are currently evolving from strictly social entities into business enablers in the virtual marketplace. Today, most organizations are taking advantage of the opportunities that exist in WCs to provide customer-oriented services. These WCs survive on the interactive contributions of their members. In this paper, we propose a formal interactivity model that dynamically captures the contributions of members of the community. A formal framework is necessary to provide sound foundation for this new research area
    Fourth International Conference on Information Technology: New Generations (ITNG 2007), 2-4 April 2007, Las Vegas, Nevada, USA; 01/2007
  • Chima Adiele
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    ABSTRACT: Managing data distributed over the Web has been a major problem in providing enterprise-wide information to support Web-centric applications, such as e-commerce. For example, the popular three-phase e-commerce application model does not support explicit informal interactions by customers because of data communication problems inherent in the system. We design a high level architecture for Web data communication system that provides easy access to data generated in an e-commerce application. We formally specify components of the architecture to reduce its complexity and elucidate the overall data communication process. We leverage data integration concepts to manage data generated in the system.
    Advanced International Conference on Telecommunications and International Conference on Internet and Web Applications and Services (AICT/ICIW 2006), 19-25 February 2006, Guadeloupe, French Caribbean; 01/2006
  • Chima Adiele, Wesley Penner
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    ABSTRACT: Over the years, Web-based communities (WBC) have evolved from social phenomena that have no business dimension to a business enabler in the virtual marketplace. WBC becomes economically interesting with the increasing size of the community where members are active participants in sharing ideas and knowledge. There are, however, inherent problems associated with the increasing size of a WBC, especially determining the contributions of members in sustaining the community’s interactivity. Interactivity relates to the level of participation of a member in a given community, and the usefulness of such contributions to the needs of the community. In this paper, we present an interactivity model that captures the contributions of members of the community and also determines the community’s interactivity level. We use simulation results to validate the correctness of our model.
    Web Information Systems - WISE 2006, 7th International Conference on Web Information Systems Engineering, Wuhan, China, October 23-26, 2006, Proceedings; 01/2006
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    ABSTRACT: Internet-enabled technology has given impetus to elearning as choice educational environment for millions of learners. E-learning presents new opportunities for institutions to cost-effectively expand access to education and attract a culturally-diverse student population. Despite positive strides made in e-learning, the drop out rate of students remains high. Most educators attribute this negative trend to lack of interactivity among students. This paper presents an enterprise-wide e-learning support system, called Web Interact System (WebIS). WebIS provides a platform for both intra- and inter-institutional interactivity among learners. The system leverages an existing interactivity model to dynamically measure the interactivity of learners. We provide a prototype of the proposed system and discuss some of its services.
    Proceedings of the 2006 IEEE/WIC/ACM International Conference on Intelligent Agent Technology - Workshops, Hong Kong, China, 18-22 December 2006; 01/2006
  • C. Adiele
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    ABSTRACT: E-commerce involves business activities that deal with the exchange of values for goods and services on the Internet where all transactions are carried out electronically. These activities consist of different operations that depend on data. Web data emanate from data sources that are inherently distributed and potentially heterogeneous. However, Web users, and indeed, participants of e-commerce transactions desire access to data without necessarily understanding the intricacies of the underlying data sources. Unfortunately, data infrastructure has not been a major focus of e-commerce research. In this paper, we characterize e-commerce data sets to reveal the storage requirements and other data management needs of such data. We specify a common-term vocabulary to make explicit the content of data, and hence, facilitate the integration of e-commerce data sets. Central to the semantic description of data is a filter mechanism that recognizes a context schema.
    Information Technology: Coding and Computing, 2005. ITCC 2005. International Conference on; 05/2005
  • Chima Adiele, Sylvanus A. Ehikioya
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    ABSTRACT: This paper leverages web data management concepts to aggregate data generated in a B2B-centric WBC (B2B-WBC) model. We use algebraic signatures to formally specify components of the model to reduce system's complexity. We introduce the concept of reward and punishment to facilitate sustained interactivity, while organisations still maintain independent B2C-WBCs.
    IJWBC. 01/2005; 1:226-242.
  • C. Adiele, S.A. Ehikioya
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    ABSTRACT: Data integration involves merging two or more schemas into a global schema based on the identification of common concepts, and also the set of different concepts that are mutually related by some semantic properties. Identifying semantic relationships between a set of objects in one schema and a different set of objects in another schema is crucial to the integration process. Earlier integration strategies depend on significant manual input from the users and the ingenuity of the DBAs for identification and declaration of correspondence assertions. We argue that the task of manually identifying assertions for all attributes in the local databases is indeed enormous. In this paper, we design an integration algorithm that leverages a simple semistructured data model and a common ontology to dynamically identify correspondence assertions. We exploit set theory and logic to formally specify the assertions.
    Information Technology: Coding and Computing, 2004. Proceedings. ITCC 2004. International Conference on; 05/2004
  • Chima Adiele, Sylvanus A. Ehikioya
    19th International Conference on Computers and Their Applications, CATA 2004, March 18-20, 2004, Red Lion Hotel on Fifth Avenue, Seattle, Washington, USA; 01/2004
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    ABSTRACT: In this paper, we develop a multithreaded algorithm for pricing simple options and implement it on a 8 node SMP machine using MIT's supercomputer programming language Cilk. The algorithm dynamically creates lots of threads to exploit parallelism and relies on the Cilk runtime system to distribute the computation load. We present both analytical and experimental results and our results explain how Cilk could be used effectively to exploit parallelism in the given problem. The analytical results show that our algorithm has a very high average parallelism and hence Cilk is the target paradigm to implement the algorithm. We conclude from our implementation results that the size of the threads, the number of threads created, the load balancer the cost of spawning a thread are parameters that must be considered while designing the algorithm on the Cilk platform.
    High Performance Computing Systems and Applications, 2002. Proceedings. 16th Annual International Symposium on; 02/2002
  • Source
    Sylvanus A Ehikioya, Chima Adiele
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    ABSTRACT: Data integration involves merging two or more schemas into a global schema based on the identification of common concepts, and also the set of different concepts that are mutually related by some semantic properties. Identifying semantic relationships that exist between a set of objects in one schema and a different set of objects in another schema is crucial to the integration process. Earlier integration strategies depend on significant manual input from the users and the ingenuity of the database administrators (DBAs) for the identification and declaration of correspondence assertions. We argue that it would be exceedingly difficult for users / DBAs to identify, declare, and specify the assertions that exist between objects, especially a mapping between two different attributes, for all attributes in the local databases. In this paper, we design an integration algorithm that leverages a simple semistructured data model and a common ontology to dynamically identify correspondence assertions. We exploit set theory and logic to formally specify the assertions. We show how different users across diverse platforms can query the global integrated schema.
  • Source
    Chima Adiele, Sylvanus A Ehikioya
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    ABSTRACT: E-commerce transactions involve the access of data from enterprise-wide information. Providing enterprise-wide information is becoming increasingly difficult because of problems inherent in identifying semantic equivalent data. Web data integration consolidates and standardizes Web data, thus making Web data readily available to meet e-commerce needs. Integrating data from different sources involves combining concepts and knowledge of such data into a global view, so users can access such data without relying on the complex organizational structures of the underlying data sources. Unfortunately, most existing efforts involve significant manual input and adopt ad hoc approaches to data integration, ignoring the theoretical foundations of, and the necessary formalisms to specify, the integration process. In this paper, we leverage algebraic signatures to specify components of the integration system. We present an algebraic data model that reduces the topological structure of Web data sources to regular expressions. We define algebraic operators and functions to manipulate objects in the algebraic model. Central to the integration process is a filter mechanism that recognizes a "regulated schema" so that all the participating schemas are guaranteed to be in the same format. We also show that our approach guarantees a scalable and correct integration system.

Publication Stats

19 Citations
0.85 Total Impact Points

Institutions

  • 2011
    • Trinity Western University
      Langley, British Columbia, Canada
  • 2006–2007
    • University of Lethbridge
      Lethbridge, Alberta, Canada
  • 2004–2005
    • University of Manitoba
      • Department of Computer Science
      Winnipeg, Manitoba, Canada