The predictive information obtained by testing multiple software versions

Multiversion programming is a redundancy approach to developing highly reliable software. In applications of this method, two or more versions of a program are developed independently by different programmers and the versions are combined to form a redundant system. One variation of this approach consists of developing a set of n program versions and testing the versions to predict the failure probability of a particular program or a system formed from a subset of the programs. The precision that might be obtained, and also the effect of programmer variability if predictions are made over repetitions of the process of generating different program versions, are examined

Estimation in a discrete tail rate family of recapture sampling models

In the context of recapture sampling design for debugging experiments the problem of estimating the error or hitting rate of the faults remaining in a system is considered. Moment estimators are derived for a family of models in which the rate parameters are assumed proportional to the tail probabilities of a discrete distribution on the positive integers. The estimators are shown to be asymptotically normal and fully efficient. Their fixed sample properties are compared, through simulation, with those of the conditional maximum likelihood estimators

Henri Temianka Photographs, Professional Acquaintances

https://digitalcommons.chapman.edu/temianka_photos/1170/thumbnail.jp

FDA’s progress in advanced manufacturing

Please click Additional Files below to see the full abstract

Henri Temianka Photographs, Professional Acquaintances

https://digitalcommons.chapman.edu/temianka_photos/1171/thumbnail.jp

A survey to determine reading improvement and extent of phonic disability preceding and following a summer reading class at Rossville rural high school

Call number: LD2668 .R4 1967 M14

Parents\u27 and Teachers\u27 Perception of an Alternative School

The alternative school in this case study has experienced resistance to the assignments the past few years. Present enrollment consists mostly of African American male students, whose parents complain about constant fighting, inadequate educational resources and the lack of class selections necessary for student academic progress. The purpose of this qualitative case study was to explore the perceptions of teachers and parents regarding academic information, and general information, they perceived have had the greatest impact on behavior, discipline, and achievement in the school environment. In addition, parents\u27 primary concerns about student assignment to the alternative school were explored. Constructivist learning theory was used to guide the study and research questions addressed the perspectives of teachers and parents about best practices concerning the behavior and academic achievement problems among black males attending the school. Data collection included interviews with 20 past and present parents and 15 teachers selected using purposive sampling. Data analyses involved using Hatch\u27s nine-step typology to code data and analyze for common themes. The results indicated that the alternative school has generally been successful in promoting student achievement and facilitating correct behaviors of assigned students. However, parents\u27 views differed regarding with the school environment. To address these differences, a professional development project was developed that included working with teacher, parent and student perspectives regarding academics and behavior concerns that were affecting the functioning of the school. Positive social change might occur as stakeholders realize the return of alternative school students to the educational environment who have the potential to be productive members of the community