The development of an application based on a set of best software engineering practices involves first their selection. This process may become complex due to the variables involved. This paper presents an Operations Research approach for the selection of best software engineering practices for the development of applications or computational systems considering a series of alternatives and sel...

Recent research shows that runtime models can be used to build dynamic systems coping with changing requirements and execution environments. As software systems are getting bigger and more complex, locating malfunctioning software parts is no trivial task because of the vast amount of possible error sources and produced logging information. This information has to be traced back to faulty compo...

The batch execution modes of PVS are powerful, but highly technical, features of the system that are mostly accessible to expert users. This paper presents a PVS tool, called ProofLite, that extends the theorem prover interface with a batch proving utility and a proof scripting notation. ProofLite enables a semi-literate proving style where specification and proof scripts reside in the same fil...

This study was performed to estimate the prevalence of abortions and to evaluate its association with the socio-demographic factors in an urban slum. The data was collected based on recall obstetric history from186 females through systematic random sampling from 01.04.2001 to 30.06.2001. It was found that the abortion rate was 419.35 / 1000 women of reproductive age group. Abortion ratio was 10...

This work accounts for an investigation about the diurnal variation of aerosol spectral transmittance of solar irradiance under dominant wind conditions as case studies. Such a work is carried out in Athens for first time. The spectral transmittance values estimated were derived using Ž . ground-based spectral measurements of beam irradiance in the range 310–575 nm UV and VIS . The data were re...

In the modern understanding an Invisible Hand process, which is widely believed to be present in a Free Market, is perceived as something very general a process in which the outcome is produced in a decentralized way, with no explicit cooperation between the acting agents. The second essential feature is that the process is not intentional; yet its impact on the market is very strong (Joyce, 20...

The use of broadband satellite information for agricultural applications like crop growth monitoring and yield prediction currently is well adapted. In this paper, the potential of imaging spectrometry for agricultural applications is evaluated. Data of the AVIRIS spectrometer obtained during the MAC Europe 1991 campaign in The Netherlands are used. The information contained in these data is st...

An approach is presented to integrate PVS executable specifications and Stateflow models. It uses web services to enable a seamless exchange of simulation events and data between PVSio and Stateflow. The approach’s effectiveness is demonstrated on a medical device prototype. The prototype’s user interface is a PVS specification with its software controller implemented in Stateflow. Using the we...

Please cite this article in press as: S. Maldonado Comput. Vis. Image Understand. (2009), doi:10 Pattern recognition methods are used in the final stage of a traffic sign detection and recognition system, where the main objective is to categorize a detected sign. Support vector machines have been reported as a good method to achieve this main target due to their ability to provide good accuracy...

In [28], Schneider applies CSP to the modelling and analysis of authentication protocols and develops a general proof strategy for verifying authentication properties. This paper shows how the PVS theorem prover can provide e ective mechanical support to the approach.