Georgia State University

About: Georgia State University is a education organization based out in Atlanta, Georgia, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 13988 authors who have published 35895 publications receiving 1164332 citations. The organization is also known as: GSU & Georgia State.

A Fortran language system for mutation-based software testing

Abstract: Mutation analysis is a powerful technique for testing software systems. The Mothra software testing project uses mutation analysis as the basis for an integrated software testing environment. Mutation analysis requires executing many slightly differing versions of the same program to evaluate the quality of the data used to test the program. The current version of Mothra includes a complete language system that translates a program to be tested into intermediate code so that it and its mutated versions can be executed by an interpreter. In this paper, we discuss some of the unique requirements of a language system used in a mutation-based testing environment. We then describe how these requirements affected the design and implementation of the Fortran 77 version of the Mothra system. We also describe the intermediate language used by Mothra and the features of the language system that are needed for software testing. The appendices contain a full description of the intermediate language and the mutation operators used by Mothra. The design and implementation techniques that were developed for Mothra are applicable for constructing not just software testing systems, but any type of program analysis system or language system for a special-purpose application. In particular, we discuss decisions made and techniques developed by the Mothra team that can be useful in such applications as debuggers, program measurement tools, software development environments and other types of program analysis systems.

The theoretical foundations of knowledge management

Abstract: Knowledge management has emerged as an important field for practice and research in information systems. This field is building on theoretical foundations from information economics, strategic management, organizational culture, organizational behavior, organizational structure, artificial intelligence, quality management, and organizational performance measurement. These theories are being used as foundations for new concepts that provide a rationale for managing knowledge, define the process of managing knowledge, and enable us to evaluate the results of this process. Based on articles published between 1995 and 2005, new concepts are emerging, including knowledge economy, knowledge alliance, knowledge culture, knowledge organization, knowledge infrastructure, and knowledge equity. An analysis of the theoretical foundations of knowledge management reveals a healthy arena with a strong foundation and clear directions for future work.

A Review of Communication, Driver Characteristics, and Controls Aspects of Cooperative Adaptive Cruise Control (CACC)

Abstract: Cooperative adaptive cruise control (CACC) systems have the potential to increase traffic throughput by allowing smaller headway between vehicles and moving vehicles safely in a platoon at a harmonized speed. CACC systems have been attracting significant attention from both academia and industry since connectivity between vehicles will become mandatory for new vehicles in the USA in the near future. In this paper, we review three basic and important aspects of CACC systems: communications, driver characteristics, and controls to identify the most challenging issues for their real-world deployment. Different routing protocols that support the data communication requirements between vehicles in the CACC platoon are reviewed. Promising and suitable protocols are identified. Driver characteristics related issues, such as how to keep drivers engaged in driving tasks during CACC operations, are discussed. To achieve mass acceptance, the control design needs to depict real-world traffic variability such as communication effects, driver behavior, and traffic composition. Thus, this paper also discusses the issues that existing CACC control modules face when considering close to ideal driving conditions.