There are different approaches to modeling a computational system, each providing different semantics. We present a comparison among different approaches to semantics and we aim at identifying which peculiarities are needed to provide a system with uniquely interpretable semantics. We discuss different approaches, namely, Description Logics, Artificial Neural Networks, and relational database m...

We characterized the information in a multilevel state of the world that is captured by a multilevel relational database. Based on the characterization, we formalized the security semantics of tuple-level and element-level data classiication schemes. Entity and referential integrity constraints for the multilevel relational model are derived from the security semantics. We also showed that the ...

The performance gap between hospital spending and outcomes is indicative of inefficient care delivery. Operational failures—breakdowns in internal supply chains that prevent work from being completed—contribute to inefficiency by consuming 10% of nurses’ time (Hendrich et al. 2008, Tucker 2004). This paper seeks to identify organizational factors associated with operational failures, with a goa...

Key Findings. Data from 4,727 hospitals in the 2013 HIMSS Analytics database yielded these findings: (1) Two-thirds (66.0% of rural defined as nonmetropolitan and 68.0% of urban) had no telehealth services or were only in the process of implementing a telehealth application. One-third (34.0%rural and 32.0% urban) had at least one telehealth application currently in use. (2) Among hospitals with...

a r t i c l e i n f o The research of operational risk management among Chinese commercial banks is still in its preliminary stage. Operational risk events are rare and data is hard to collect. This leads to very small data samples. Besides, a large number of empirical researches show that the distributions of operational losses are often skewed with fat tails. To address these issues, this pap...

The ISS04 scaling of the energy confinement in stellarators/helical systems has been derived from selected data of the International Stellarator/Heliotron Confinement Database (ISHCDB), taking only few high-β data into account. Therefore, the basis for extrapolations to the reactor regime is insufficient. In the last years, regimes with reactor relevant beta became accessible in the Large Helic...

Trace files generated during operation of a database provide enormous amounts of information. This information varies from one DBMS to another—some databases produce more information than the others. There are many research projects which aim at analysing workloads of databases (not necessarily the trace files). Many of them work online in parallel with the usual business of a DBMS. Such approa...

Knowledge discovery in databases (KDD) is an area that has become important to organizations that search for trends and useful information from their raw database information. KDD can be a tedious and repetitive humandriven process with respect to extracting the relevant datasets from databases for processing in the relevant learning algorithms. We investigate an approach where agents can contr...

This study is a research and development that used systematic approaches as an operational concept. The objectives of the included: (1) To usage demands on-screen interactive Graphical User Interface (GUI) for Faculty Education database. (2) create 3D models their efficiency in GUI (3) evaluate perception utilization population this included; 100 staff students – who were selected using Purposi...

In today’s enterprise service oriented software architectures, database systems are a crucial component for the quality of service (QoS) management between customers and service providers. The database workload consists of requests stemming from many different service classes, each of which has a dedicated service level agreement (SLA). We present an adaptive QoS management that is based on an ...