title: Learning from the past with experiment databases

authors: Vanschoren, Joaquin

subjects: computer science

abstract: Thousands of Machine Learning research papers contain experimental comparisons that usually have been conducted with a single focus of interest, and detailed results are usually lost after publication. Once past experiments are collected in experiment databases they allow for additional and possibly much broader investigation. In this paper, we show how to use such a repository to answer various interesting research questions about learning algorithms and to verify a number of recent studies. Alongside performing elaborate comparisons and rankings of algorithms, we also investigate the effects of algorithm parameters and data properties, and study the learning curves and bias-variance profiles of algorithms to gain deeper insights into their behavior.

text: Learning from the past with experiment databases Thousands of Machine Learning research papers contain experimental comparisons that usually have been conducted with a single focus of interest, and detailed results are usually lost after publication. Once past experiments are collected in experiment databases they allow for additional and possibly much broader investigation. In this paper, we show how to use such a repository to answer various interesting research questions about learning algorithms and to verify a number of recent studies. Alongside performing elaborate comparisons and rankings of algorithms, we also investigate the effects of algorithm parameters and data properties, and study the learning curves and bias-variance profiles of algorithms to gain deeper insights into their behavior.

year: 2008-06-24

title: Exploring Fijian high school students’ conceptions of averages

authors: Sharma, Sashi

subjects: education

abstract: This paper focuses on part of a much larger study that explored form five (14 to 16 year-old) students’ ideas in statistics. A range of ideas was explored, including the students’ ideas about measures of centre and graphical representations. Students’ ideas about measures of centre were analysed and categories of responses identified. While students could compute mean and median, they were less competent with tasks that involved constructing meanings for averages. This could be due to an emphasis in the classroom on developing procedural knowledge or to linguistic and contextual problems. Some students used strategies based on prior school and everyday experiences. The paper concludes by suggesting some implications for mathematics education.

text: Exploring Fijian high school students’ conceptions of averages This paper focuses on part of a much larger study that explored form five (14 to 16 year-old) students’ ideas in statistics. A range of ideas was explored, including the students’ ideas about measures of centre and graphical representations. Students’ ideas about measures of centre were analysed and categories of responses identified. While students could compute mean and median, they were less competent with tasks that involved constructing meanings for averages. This could be due to an emphasis in the classroom on developing procedural knowledge or to linguistic and contextual problems. Some students used strategies based on prior school and everyday experiences. The paper concludes by suggesting some implications for mathematics education.

year: 2008

title: Barriers to and supports for success for Maori students in the Psychology Department at the University of Waikato

authors: Hunt, Hanna

subjects: Maori students

abstract: The overall objective for this evaluation was to investigate the barriers to participating in tertiary education for Maori, and supports for academic success for Maori students in the Psychology Department. With this objective in mind, we set out to:
Investigate the barriers that impede success for Maori students in the Psychology Department. 
Identify variables of success and how they can be more effectively managed within the Psychology Department. 
Identify factors that contribute to Maori students continuing their studies through to graduate level. 
Provide recommendations for future development of a supportive environment for Maori students in the Psychology Department.

text: Barriers to and supports for success for Maori students in the Psychology Department at the University of Waikato The overall objective for this evaluation was to investigate the barriers to participating in tertiary education for Maori, and supports for academic success for Maori students in the Psychology Department. With this objective in mind, we set out to:
Investigate the barriers that impede success for Maori students in the Psychology Department. 
Identify variables of success and how they can be more effectively managed within the Psychology Department. 
Identify factors that contribute to Maori students continuing their studies through to graduate level. 
Provide recommendations for future development of a supportive environment for Maori students in the Psychology Department.

year: 2001-01-01