With the recent advancements in computer technologies, amount of data available is increasing day by day. However, excessive amounts create great challenges for users. Meanwhile, cloud computing services provide a powerful environment to store large volumes data. They eliminate various requirements, such as dedicated space and maintenance expensive hardware software. Handling big time-consuming...

A system architecture for the dynamic deployment and running of Web services is presented. Service code is held in a code store; service deployment is triggered on demand by incoming SOAP messages. A mechanism is also provided for storing and applying service specific QoS targets. Policies for dynamic server allocation are developed. The system has been implemented and the results of several ex...

While other industries have some form of inventory to store and buffer their products and services, electricity cannot be massively stored using today’s technologies. As a result, it has to be generated and delivered for immediate consumption; in short, utilities have to balance supply and demand every moment. Storage limitations and societal dependence on electricity lead to several interestin...

Terminological representation systems permit the construction of knowledge bases and schemata around the notion of concepts, roles, and instantiating objects. Inferential services they provide include checking for inconsistencies in and classification of concept and object descriptions. To improve their performance, several systems store derived propositions together with user-told data in the ...

An important objective of the Semantic Web is to make Electronic Commerce interactions more flexible and automated. To achieve this, standardization of ontologies, message content and message protocols will be necessary. In this paper we investigate how Semantic and Web Services technologies can be used to support service advertisement and discovery in e-commerce. In particular, we present some...

Although context awareness is a key component for perceptual user interfaces, we lack generic infrastructure for developing context aware applications. We propose a generic infrastructure based on context servers that store, share and archive contextual data. We describe a few applications we have built that take advantage of context sharing and context history. We then turn to the overall desi...

This paper presents generic pickling and minimization mechanisms that are provided as services similar to garbage collection. Pickling is used to externalize and internalize data. Minimization means to maximize the sharing in arbitrary data structures. The paper introduces the notion of an abstract store as a formal basis for the algorithms, and analyzes design decisions for the implementation ...