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In this demo paper, we present a new data service composition sequence generation approach to solve the ad-hoc data query problem in EDMIS. Our approach allows end users to input some keywords, and then the data services related are found and the Top-K data services composition sequences are generated as output.
A logical data petri net (LDPN), a logical data workflow net (LDWN) and a collaborative logical data workflow net (CLDWN) are represented. They are improved formal models extended with data variables, guards and the output condition expressions based on our previous models. Data variables are used to represent data. Guards are used to indicate the additional constraint related to data except for a...
a trust evaluation model for mobile e-commerce trading platform was proposed, which is based on improved Grey-prediction-model. The model utilizes the theory of Gray prediction, constructs the GM (1,1) model according to the changes of previous trust values of entities interaction and predict the next trust value. Experiments show that the model is a better solution to mobile e-commerce on trust status...
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