title: Organizing the World’s Machine Learning Information

authors: Vanschoren, Joaquin

subjects: computer science

abstract: All around the globe, thousands of learning experiments are being executed on a daily basis, only to be discarded after interpretation. Yet, the information contained in these experiments might have uses beyond their original intent and, if properly stored, could be of great use to future research. In this paper, we hope to stimulate the development of such learning experiment repositories by providing a bird’s-eye view of how they can be created and used in practice, bringing together existing approaches and new ideas. We draw parallels between how experiments are being curated in other sciences, and consecutively discuss how both the empirical and theoretical details of learning experiments can be expressed, organized and made universally accessible. Finally, we discuss a range of possible services such a resource can offer, either used directly or integrated into data mining tools.

text: Organizing the World’s Machine Learning Information All around the globe, thousands of learning experiments are being executed on a daily basis, only to be discarded after interpretation. Yet, the information contained in these experiments might have uses beyond their original intent and, if properly stored, could be of great use to future research. In this paper, we hope to stimulate the development of such learning experiment repositories by providing a bird’s-eye view of how they can be created and used in practice, bringing together existing approaches and new ideas. We draw parallels between how experiments are being curated in other sciences, and consecutively discuss how both the empirical and theoretical details of learning experiments can be expressed, organized and made universally accessible. Finally, we discuss a range of possible services such a resource can offer, either used directly or integrated into data mining tools.

year: 2009

title: Killing Tensors and Variable Separation for Hamilton-Jacobi and Helmholtz Equations

authors: Kalnins, Ernie G.

subjects: Science & Technology

abstract: Every separable coordinate system for the Hamilton-Jacobi equation on a Riemannian manifold Vₙ corresponds to a family of n-1 Killing tensors in involution, but the converse is false. For general n we find a practical characterization of those involutive families of Killing tensors that correspond to variable separation, orthogonal or not.

text: Killing Tensors and Variable Separation for Hamilton-Jacobi and Helmholtz Equations Every separable coordinate system for the Hamilton-Jacobi equation on a Riemannian manifold Vₙ corresponds to a family of n-1 Killing tensors in involution, but the converse is false. For general n we find a practical characterization of those involutive families of Killing tensors that correspond to variable separation, orthogonal or not.

year: 1980

title: Joe Gillayley: A model of cultural hybridity in Keri Hulme’s novel The Bone People

authors: Cozma, Codrina

subjects: Literary analysis

abstract: Born and raised at the confluence of two cultures, Western and Māori, the New Zealand author Keri Hulme crafts in her 1983 novel, The Bone People, a vigorous literary discourse whose integrity and realism often topple consecrated stereotyping colonial theories. Joe Gillayley displays complex mechanisms of cultural hybridity in major areas of his private and social life. His initially ambivalent attitude towards both his Western and his Māori heritage are evident in his personal, social and economic life - in his interactions with his family, his semi-adopted son Simon/ Himi, his friend Kerewin, his work, school authorities, and tribal figures such as the mysterious prophet Tiaki Mira. Post-colonial scholarship provides the context in which the analysis provided here is conducted, an analysis that highlights the futility of colonial theories that are based on distorted, stereotypical images of both Western and indigenous life and values.

text: Joe Gillayley: A model of cultural hybridity in Keri Hulme’s novel The Bone People Born and raised at the confluence of two cultures, Western and Māori, the New Zealand author Keri Hulme crafts in her 1983 novel, The Bone People, a vigorous literary discourse whose integrity and realism often topple consecrated stereotyping colonial theories. Joe Gillayley displays complex mechanisms of cultural hybridity in major areas of his private and social life. His initially ambivalent attitude towards both his Western and his Māori heritage are evident in his personal, social and economic life - in his interactions with his family, his semi-adopted son Simon/ Himi, his friend Kerewin, his work, school authorities, and tribal figures such as the mysterious prophet Tiaki Mira. Post-colonial scholarship provides the context in which the analysis provided here is conducted, an analysis that highlights the futility of colonial theories that are based on distorted, stereotypical images of both Western and indigenous life and values.

year: 2004-02