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Reuse is an important mechanism for improving the efficiency of software development. For Internet-scale software produced through service composition, the simple reuse granularity at service is often inefficient due to the large number of available services. This paper proposes a novel architecture which enables efficient reuse of process fragments. In the proposed architecture, services are organized...
Computational trust systems are getting popular in several domains such as social networks, grid computing and business-to-business systems. However, the estimation of the trustworthiness of agents is not trivial in scenarios where the existing trust evidences are scarce. We propose an online, situation-aware trust model that uses the information gain metric to dynamically extract tendencies of failure...
The article discusses the potential methods and benefits of the analysis of social networks hidden in the enterprise and personal email archives. A proof-of concept prototype was developed. Social network extraction and the spreading activation algorithm are discussed and evaluated.
The ability to substitute a service for another is one of the features of Service-Oriented Computing (SOC). In this paper, we study the problem of degraded service substitution assuming that services have explicitly-defined interaction protocols, e.g., in the form of WS-BPEL business protocols. To this end, we characterize the behavior of interacting services by means of contracts specifying the allowed...
User-generated reviews play an important role for potential consumers in making purchase decisions. However, the quality and helpfulness of user-generated reviews are unavailable unless consumers read through them. Automatically predicting the helpfulness of user-generated reviews can assist consumers in discovering helpful reviews. Existing helpfulness assessing models make use of the positive vote...
Inter-organizational business collaborations exist widely in various businesses of the government. The inter-organizational collaboration relationships in the field of E-government are classified; eight types of roles in inter-organizational collaborations are abstracted based on the classification. Four types of collaboration interfaces of the role are proposed, and each type of roles is mapped to...
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