title: Systemic racism in clinical psychology: Symposia

authors: Wairoa-Harrison, Sophia

subjects: Racial oppression

abstract: This study constitutes a part of the Working to End Racial Oppression (WERO) project on Systemic Racism in Health Education, Training, and Practice. The focus is on the three dimensions of racism in psychology in Aotearoa New Zealand: its costs, systems and the potential responses that exist. Content: To set the scene, the session will begin with a 30-minute presentation that outlines evidence from three WERO studies on different levels of racism affecting indigenous Māori and minoritised groups. First study presents findings from a desktop analysis of papers across university psychology departments. The findings will be compared with previous studies (Levy, 2007; Levy & Waitoki, 2015) to identify the changes in inclusion of Māori and culturally focused paper at different timepoints. The second study involves semi-structured interviews with Māori students enrolled in clinical psychology training programmes (n = 19) to understand the extent of cultural responsiveness, support, disparities, and representation within programmes. The third study draws on preliminary survey findings with directors of training programmes to depict the progress towards including taha Māori and cultural competency in the psychology curriculum since the studies by Abbott and Durie (1987) and Nathan (1999). The rest of the session will be conducted as a wānanga or a forum that includes a panel discussion amongst WERO research team while allowing for a reciprocal exchange of knowledge with the attendees. Opportunities will be provided for attendees to ask questions, provide feedback to the research analyses and findings, and share their experiences of witnessing or encountering racism in psychology. The session will be opened with a karakia (prayer) and attendees to be offered manaakitanga (hospitality) and tikanga (custom) to ensure cultural safety. Goals: In this session, the research team will bring the evidence derived from robust analyses on existence and ramifications of racism in psychology to the fore. These findings will be integrated with the Waitangi Tribunal claim (Levy, 2018) to shed light on the manifestations of racism across systems and agents responsible for the regulation, training and employment of psychologists. Findings will be used to inform ways for all in psychology to embark on Te Tiriti-focused, culturally-competent and equitable approaches in the quest of indigenising the psychology discipline and advancing it to be relevant to the multicultural nature of Aotearoa populations.

text: Systemic racism in clinical psychology: Symposia This study constitutes a part of the Working to End Racial Oppression (WERO) project on Systemic Racism in Health Education, Training, and Practice. The focus is on the three dimensions of racism in psychology in Aotearoa New Zealand: its costs, systems and the potential responses that exist. Content: To set the scene, the session will begin with a 30-minute presentation that outlines evidence from three WERO studies on different levels of racism affecting indigenous Māori and minoritised groups. First study presents findings from a desktop analysis of papers across university psychology departments. The findings will be compared with previous studies (Levy, 2007; Levy & Waitoki, 2015) to identify the changes in inclusion of Māori and culturally focused paper at different timepoints. The second study involves semi-structured interviews with Māori students enrolled in clinical psychology training programmes (n = 19) to understand the extent of cultural responsiveness, support, disparities, and representation within programmes. The third study draws on preliminary survey findings with directors of training programmes to depict the progress towards including taha Māori and cultural competency in the psychology curriculum since the studies by Abbott and Durie (1987) and Nathan (1999). The rest of the session will be conducted as a wānanga or a forum that includes a panel discussion amongst WERO research team while allowing for a reciprocal exchange of knowledge with the attendees. Opportunities will be provided for attendees to ask questions, provide feedback to the research analyses and findings, and share their experiences of witnessing or encountering racism in psychology. The session will be opened with a karakia (prayer) and attendees to be offered manaakitanga (hospitality) and tikanga (custom) to ensure cultural safety. Goals: In this session, the research team will bring the evidence derived from robust analyses on existence and ramifications of racism in psychology to the fore. These findings will be integrated with the Waitangi Tribunal claim (Levy, 2018) to shed light on the manifestations of racism across systems and agents responsible for the regulation, training and employment of psychologists. Findings will be used to inform ways for all in psychology to embark on Te Tiriti-focused, culturally-competent and equitable approaches in the quest of indigenising the psychology discipline and advancing it to be relevant to the multicultural nature of Aotearoa populations.

year: 2023-03-25

title: Ngā kura a Hineteiwaiwa: The embodiment of Mana Wahine in Māori fibre Arts

authors: Campbell, Donna

subjects: Mana Wahine

abstract: Imagine you are on a continuum of past present and future, in the present while connected to the past and creating for the future. Kairaranga  are constantly in this experience through engaging with the materiality of the practices of raranga and raranga whatu.  
The key focus of this thesis is to provide theoretical discussion of the raranga and whatu practices that are the creative component of this doctoral research.  The theories that inform the analysis are Kaupapa Māori and Mana Wahine both of which, like raranga, are organic to this place, Aotearoa , and have grown as descendants of Papatūānuku  and Ranginui . The connection between these theories and the creative practices of raranga and whatu form a cultural praxis through which I argue enables the transformative power of raranga and whatu practices.  This too is the essence of Te Whare Pora, a weaving house that embraces kairaranga both conceptually and materially and which provides the approach to the project. Te Whare Pora is a place of knowledge and a place of practice. Like Kaupapa Māori and Mana Wahine theories it is a cultural form and expression of praxis. As kairaranga we create taonga  informed by the creative genius of our tūpuna  from the native plants of the land. These ageless practices and the taonga we create are permeated with our own present realities. The taonga then carry this tūpuna knowledge into the future in multiple forms. To highlight this, I explore a range of practices that exemplify raranga and raranga whatu as cultural embodiment.  This is articulated through notions of raranga as an expression of cultural bodies of knowledge, creative practice and regenerative praxis that span the past, present and future.  As such, this thesis is an expression of the creative journey of theory and practice inspired by tūpuna knowledge in the art forms of raranga and raranga whatu. The practices of raranga and raranga whatu not only transform the materials the kairaranga is using, but also the kairaranga themselves. These practices become self-affirming, culturally affirming and ultimately decolonizing.

text: Ngā kura a Hineteiwaiwa: The embodiment of Mana Wahine in Māori fibre Arts Imagine you are on a continuum of past present and future, in the present while connected to the past and creating for the future. Kairaranga  are constantly in this experience through engaging with the materiality of the practices of raranga and raranga whatu.  
The key focus of this thesis is to provide theoretical discussion of the raranga and whatu practices that are the creative component of this doctoral research.  The theories that inform the analysis are Kaupapa Māori and Mana Wahine both of which, like raranga, are organic to this place, Aotearoa , and have grown as descendants of Papatūānuku  and Ranginui . The connection between these theories and the creative practices of raranga and whatu form a cultural praxis through which I argue enables the transformative power of raranga and whatu practices.  This too is the essence of Te Whare Pora, a weaving house that embraces kairaranga both conceptually and materially and which provides the approach to the project. Te Whare Pora is a place of knowledge and a place of practice. Like Kaupapa Māori and Mana Wahine theories it is a cultural form and expression of praxis. As kairaranga we create taonga  informed by the creative genius of our tūpuna  from the native plants of the land. These ageless practices and the taonga we create are permeated with our own present realities. The taonga then carry this tūpuna knowledge into the future in multiple forms. To highlight this, I explore a range of practices that exemplify raranga and raranga whatu as cultural embodiment.  This is articulated through notions of raranga as an expression of cultural bodies of knowledge, creative practice and regenerative praxis that span the past, present and future.  As such, this thesis is an expression of the creative journey of theory and practice inspired by tūpuna knowledge in the art forms of raranga and raranga whatu. The practices of raranga and raranga whatu not only transform the materials the kairaranga is using, but also the kairaranga themselves. These practices become self-affirming, culturally affirming and ultimately decolonizing.

year: 2019

title: Pruning decision trees and lists

authors: Frank, Eibe

abstract: Machine learning algorithms are techniques that automatically build models describing the structure at the heart of a set of data. Ideally, such models can be used to predict properties of future data points and people can use them to analyze the domain from which the data originates. 

Decision trees and lists are potentially powerful predictors and embody an explicit representation of the structure in a dataset. Their accuracy and comprehensibility depends on how concisely the learning algorithm can summarize this structure. The final model should not incorporate spurious effects-patterns that are not genuine features of the underlying domain. Given an efficient mechanism for determining when a particular effect is due to chance alone, non-predictive parts of a model can be eliminated or “pruned.” Pruning mechanisms require a sensitive instrument that uses the data to detect whether there is a genuine relationship between the components of a model and the domain. Statistical significance tests are theoretically well-founded tools for doing exactly that. 

This thesis presents pruning algorithms for decision trees and lists that are based on significance tests. We explain why pruning is often necessary to obtain small and accurate models and show that the performance of standard pruning algorithms can be improved by taking the statistical significance of observations into account. We compare the effect of parametric and non-parametric tests, analyze why current pruning algorithms for decision lists often prune too aggressively, and review related work-in particular existing approaches that use significance tests in the context of pruning. The main outcome of this investigation is a set of simple pruning algorithms that should prove useful in practical data mining applications.

text: Pruning decision trees and lists Machine learning algorithms are techniques that automatically build models describing the structure at the heart of a set of data. Ideally, such models can be used to predict properties of future data points and people can use them to analyze the domain from which the data originates. 

Decision trees and lists are potentially powerful predictors and embody an explicit representation of the structure in a dataset. Their accuracy and comprehensibility depends on how concisely the learning algorithm can summarize this structure. The final model should not incorporate spurious effects-patterns that are not genuine features of the underlying domain. Given an efficient mechanism for determining when a particular effect is due to chance alone, non-predictive parts of a model can be eliminated or “pruned.” Pruning mechanisms require a sensitive instrument that uses the data to detect whether there is a genuine relationship between the components of a model and the domain. Statistical significance tests are theoretically well-founded tools for doing exactly that. 

This thesis presents pruning algorithms for decision trees and lists that are based on significance tests. We explain why pruning is often necessary to obtain small and accurate models and show that the performance of standard pruning algorithms can be improved by taking the statistical significance of observations into account. We compare the effect of parametric and non-parametric tests, analyze why current pruning algorithms for decision lists often prune too aggressively, and review related work-in particular existing approaches that use significance tests in the context of pruning. The main outcome of this investigation is a set of simple pruning algorithms that should prove useful in practical data mining applications.

year: 2000