Abstract We propose a novel framework for enabling scalable database-driven dynamic spectrum access and sharing of heterogeneous wideband spectrum. The proposed consists two complementary approaches that exploit the merits compressive sensing theory, low-rank matrix user cooperation to build an accurate map by overcoming time-variability number occupied bands, need high measurements per node (S...

Abstraction, selection, and integration of reusable artifacts are still open problems in reuse-based software construction. We investigate how these problems can be solved for one sample domain of system software: database management systems. We propose dimensions for functional subdomains where different design choices are to be made. Strategies are the design choices for dimensions; their app...

The internal controls construction of a transaction system is important to management, operation and auditing. In the environment of manual operation, the internal controls of the transaction process are all done by manual mechanism. However, after the transaction processing environment has been changed from manual operation to computerized operation, the internal control techniques have been g...

Mobile technologies and wireless communication experienced a rapid development over the last decade, with many industrial sectors realising the benefits of mobile collaboration. The advantages of using mobile computing are in the ability to share data remotely in real time, reduce rework and paperwork, being able to solve problems on site, construct accurate databases by the timely and continuo...

Multi-Context Systems (MCSs) are an expressive framework for interlinking heterogeneous knowledge systems, called contexts. Possible contexts are ontologies, relational databases, logic programs, RDF triplestores, etc. MCSs contain bridge rules to specify knowledge exchange between contexts. We extend the MCS formalism and propose SPARQL-MCS where knowledge exchange is specified in the style of...

Currently, automatic monitoring systems are increasingly used in the civil engineering structures especially in bridges with a high socioeconomic impact. In the last decades, the technology evolution that the world has being subjected allow, nowadays, the implementation of monitoring systems capable of observe the structural behavior in a programmable, remote and real-time manner. The databases...

Construction accident research involves the systematic sorting, classification, and encoding of comprehensive databases of injuries and fatalities. The present study explores the causes and distribution of occupational accidents in the Taiwan construction industry by analyzing such a database using the data mining method known as classification and regression tree (CART). Utilizing a database o...