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Relational databases provide unprecedented opportunities for knowledge discovery. Various approaches have been proposed to infer structures over entity types and predict relationships among elements of these types. However, discovering structures beyond the entity type level, e.g. clustering over relation concepts, remains a challenging task. We present a Bayesian nonparametric model for joint relation...
Context-aware plays an important role in modern society, especially to preference queries for user preferences depend on user current contexts. Popular mobile devices such as GPS, sensors and RFIDs produce context information to facilitate user right information acquisition. Due to that relational database is a powerful and sophisticated tool to manage large amount of data efficiently, context information...
Traditional learning techniques learn from flat data files with the assumption that each class has a similar number of examples. However, the majority of real-world data are stored as relational systems with imbalanced data distribution, where one class of data is over-represented as compared with other classes. We propose to extend a relational learning technique called Probabilistic Relational Models...
As sensor devices develop, not only the amount of uncertain sensor data streams is dramatically increasing, but also the streams are processed in a variety of ways. We believe one of important ways is to reason contexts from them, and the integration of dynamic reasoning result and static data in databases. This paper proposes the integration of probabilistic data streams and relational database by...
Extensible Markup Language has become a dominant standard for data representation on the Internet due to the existence of their descriptors and schemas. The use of markup declarations is the only standardized method for creating document type descriptors, but it requires huge data type definitions with some additional properties to explain a true meaning. However, the extensible markup language schema...
We developed a quality of service (QoS) management system to support service level management (SLM) for global enterprise services. The QoS management system is integrated with one of our enterprise services in a preproduction system, an identical system as the production system but in a test environment. Lab experiments showed that our integrated solution helps global enterprise services to better...
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