Usage control governs the handling of sensitive data after it has been given away. The enforcement of usage control requirements is a challenge because the service requester in general has no control over the service provider’s information processing devices. We analyze applicable trust models, conclude that observation-based enforcement is often more appropriate than enforcement by direct cont...

A wavelet-based optical flow analysis (wOFA) method for processing background-oriented schlieren (BOS) images is presented and demonstrated on synthetic experimental data. Optical inherently well suited to BOS, because the background pattern lighting conditions are specified controlled by user can be chosen play strengths of processing. Analysis BOS data show that a two-dimensional sinusoidal p...

Mentat is an object-oriented parallel processing system designed to address three problems that face the parallel computing community, the difficulty of writing parallel programs, the difficulty achieving portability of those programs, and the difficulty exploiting contemporary heterogeneous environments. Writing parallel programs by hand is more difficult than writing sequential programs. The ...

We present an outline of reconfigurable processor technologies and design methods with emphasis on an objectoriented approach, and both full and partial dynamic reconfiguration. A specific broadly applicable architecture for implementing a software reconfigurable network processor for wireless communication applications is presented; a prototype of which is currently operating in the laboratory...

Data-oriented models of language processing embody the assumption that human language perception and production works with representations of concrete past language experiences, rather than with abstract grammar rules. Such models therefore maintain large corpora of linguistic representations of previously occurring utterances. When processing a new input utterance, analyses of this utterance a...

Mentat [1] is an object-oriented parallel processing system that addresses the need for easy-to-use tools for the construction of portable medium-grain parallel software. Three of the key features of the Mentat approach are that it is object-oriented, that it uses a layered virtual machine, and that it dynamically constructs data dependence program graphs and dynamically manages system resource...

Pervasive computing applications monitor physical-world phenomena and integrate data acquisition, communication and actions across small, heterogeneous devices (e.g., smart sensors, network cameras and handheld devices). To ease the development of these applications, we propose to perform their tasks by executing action-embedded queries, which are continuous queries with operations towards devi...