Stanley Y. W. Su

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An essential property which is desirable in a query language designed for a certain data model is that queries issued in that language must produce results that are structured and modeled using the same data msdel. A consequence of maintaining this property in a query language is that the result of a query can be used as an operand in sc+ne other query (or(More)
This paper describes the design and implementation of a replicable, Internet-based negotiation server for conducting bargaining-type negotiations between enterprises involved in e-commerce and e-business. Enterprises can be buyers and sellers of products/services or participants of a complex supply chain engaged in purchasing, planning, and scheduling.(More)
This paper presents a formalization of the Web Service composition problem as a search problem in an AND/OR graph, and a search algorithm for searching the graph to identify composite service(s) that satisfies a Web Service request. Given a service request that only can be satisfied by a composition of Web Services, we identify the service categories that(More)
In the competitive global marketplace, business organizations often need to team up and operate as a virtual enterprise to achieve common business goals. Since the business environment of a virtual enterprise is highly dynamic, it is necessary to develop a workflow technology that is capable of handling dynamic workflows across enterprise boundaries. This(More)
In recent years, there has been increasing interest in automated e-business negotiations. The automation of negotiation requires a decision model to capture the negotiation knowledge of policymakers and negotiation experts so that the decision-making process can be carried out automatically. Current research on automated e-business negotiations has focused(More)
This paper describes our ongoing R&D effort in developing a replicable, Web-based negotiation server to conduct bargaining-type negotiations between clients (i.e., buyers and sellers) in e-commerce. Multiple copies of this server can be paired with existing Web-servers to provide negotiation capabilities. Each client can select a trusted negotiation server(More)
The importance of temporal database management and temporal reasoning has long been recognized by the database and AI communities. Many techniques for modeling and managing temporal databases have been introduced. Most of the existing research on temporal databases have been based on the relational data model which has limited capabilities in modeling(More)
Much effort is being made by the IT industry towards the establishment of a Web services infrastructure and the refinement of its component technologies to enable the sharing of heterogeneous application resources. Traditional roles of the service provider, service requestor and service broker and their interactions are now being improved upon to enable(More)