High-performance wildfire simulators allow the future location of a wildfire to be rapidly predicted. The accuracy of such simulators needs to be evaluated; this can be achieved by comparing simulated and observed spread for documented historical fires. A key issue relates to the accuracy of data obtained from historical fires, such as the time-varying fire location, fire-ground weather and acc...

This article identifies the major features of software cost estimation tools and how they are being used together technically with project management tools. This article describes a number of experiences of early estimation of software reliability for large real-time telecommunications systems. Estimating Web Development Costs: There Are Differences The challenges in estimating cost and duratio...

Several proposals for extending the relational data model to incorporate the temporal dimension of data have appeared in the past several years. These proposals have differed considerably in the way that the temporal dimension has been incorporated both into the structure of the extended relations that are defined as part of these extended model, and into the operations of the extended relation...

This paper follows a geostatistical approach for the evaluation, modelling and visualization of the possible local interactions between natural components and built-up elements in seismic risk analysis. This method, applied to old town centre of Potenza hilltop town, offers a new point of view for civil protection planning using kernel density and autocorrelation indexes maps to analyse macrose...

Database Auditing is one of the major issues in information security. Lack of data auditing leads the business applications to the lost trail of business processes. To cope with auditing, historical data or temporal database is needed in order to track operations and actors of the operation with the time. Valid and transaction times are two major timestamps in temporal database. In this paper, ...

It is a common practice in the process industries to compress plant data before it is archived. However, compression may alter the data in a manner that makes it difficult to extract useful information from it. In this paper we evaluate the effectiveness of a new pattern matching technique1 for applications involving compressed historical data. We also compare several data compression methods w...

It is a common practice in the process industry to compress process data before it is archived. However, compression may alter the original data in a manner that makes extracting useful information from it more difficult. In this paper, popular data compression methods and their effect on pattern matching in historical data are evaluated. Pattern matching is performed using principal-component ...

Humanities scholars increasingly rely on digital archives for their research instead of time-consuming visits to physical archives. This shift in research method has the hidden cost of working with digitally processed historical documents: how much trust can a scholar place in noisy representations of source texts? In a series of interviews with historians about their use of digital archives, w...