title: Learning Through Utility Optimization in Regression Tasks

authors: Branco, Paula

subjects: Science & Technology

abstract: Accounting for misclassification costs is important in many practical applications of machine learning, and cost-sensitive techniques for classification have been studied extensively. Utility-based learning provides a generalization of purely cost-based approaches that considers both costs and benefits, enabling application to domains with complex cost-benefit settings. However, there is little work on utility- or cost-based learning for regression. In this paper, we formally define the problem of utility-based regression and propose a strategy for maximizing the utility of regression models. We verify our findings in a large set of experiments that show the advantage of our proposal in a diverse set of domains, learning algorithms and cost/benefit settings.

text: Learning Through Utility Optimization in Regression Tasks Accounting for misclassification costs is important in many practical applications of machine learning, and cost-sensitive techniques for classification have been studied extensively. Utility-based learning provides a generalization of purely cost-based approaches that considers both costs and benefits, enabling application to domains with complex cost-benefit settings. However, there is little work on utility- or cost-based learning for regression. In this paper, we formally define the problem of utility-based regression and propose a strategy for maximizing the utility of regression models. We verify our findings in a large set of experiments that show the advantage of our proposal in a diverse set of domains, learning algorithms and cost/benefit settings.

year: 2017

title: Creating peaceful and effective schools through a culture of care

authors: Cavanagh, Tom

subjects: cultural identity

abstract: Many schools in New Zealand, the USA, and elsewhere, are searching for ways to respond positively to the educational achievement disparities that exist between majority culture students and students from minority ethnic and cultural communities. Most of the approaches and strategies that have been implemented to date have either failed, or had minimal positive influence. This paper presents the results of over five years of research, conducted collaboratively by the authors, that has been focused on developing the theory and practice of a 'culture of care' in schools. Using a cultural lens to interpret the findings, these replicated studies offer the promise of positively influencing the culture of schooling in the USA, New Zealand and beyond. Creating a culture of care requires schools and teachers to be cognisant of how the school and classroom values, beliefs and practices make it safe for all students to engage, to contribute, to belong and to feel confident in their own cultural identities.

text: Creating peaceful and effective schools through a culture of care Many schools in New Zealand, the USA, and elsewhere, are searching for ways to respond positively to the educational achievement disparities that exist between majority culture students and students from minority ethnic and cultural communities. Most of the approaches and strategies that have been implemented to date have either failed, or had minimal positive influence. This paper presents the results of over five years of research, conducted collaboratively by the authors, that has been focused on developing the theory and practice of a 'culture of care' in schools. Using a cultural lens to interpret the findings, these replicated studies offer the promise of positively influencing the culture of schooling in the USA, New Zealand and beyond. Creating a culture of care requires schools and teachers to be cognisant of how the school and classroom values, beliefs and practices make it safe for all students to engage, to contribute, to belong and to feel confident in their own cultural identities.

year: 2013

title: AI: a new (r)evolution or the new colonizer for Indigenous peoples?

authors: Whaanga, Hēmi

abstract: We are often told that there is one constant in life and that is change; it is inevitable, inescapable. When the forces of power begin to blow and conditions are right, change will happen. As the planet undergoes a period of transformation brought about by the advances of data science and the convergence of technologies, the Internet of All Things and AI, the potential of AI to be change agent for Indigenous peoples is a thought-provoking, and to a certain degree, daunting proposition. The rapid progress of technology and innovation, in terms of its volume, complexity, and exponential growth in computing power, have drastically changed how we socialize, communicate, access, share, distribute and view knowledge and information. Is AI inevitable, inescapable, a fait accompli for Indigenous peoples?

text: AI: a new (r)evolution or the new colonizer for Indigenous peoples? We are often told that there is one constant in life and that is change; it is inevitable, inescapable. When the forces of power begin to blow and conditions are right, change will happen. As the planet undergoes a period of transformation brought about by the advances of data science and the convergence of technologies, the Internet of All Things and AI, the potential of AI to be change agent for Indigenous peoples is a thought-provoking, and to a certain degree, daunting proposition. The rapid progress of technology and innovation, in terms of its volume, complexity, and exponential growth in computing power, have drastically changed how we socialize, communicate, access, share, distribute and view knowledge and information. Is AI inevitable, inescapable, a fait accompli for Indigenous peoples?

year: 2020