title: Ethical beginnings: Reflexive questioning in child sexuality research

authors: Flanagan, Paul G.

abstract: This paper presents my experience of taking up an area from counselling practice into research practice, and exploring a range of ethical questions. This section describes movement from identity as a counselling practitioner to a researcher identity, specifically noticing moments in which reflexivity in the practice of research have connections to experiences o f reflexivity in the practice of counselling. I explain the process of preparing and submitting my doctoral ethics application for approval and feedback. My application noted that, within this area of practice and research, this is a sensitive topic with potentially vulnerable participants, awareness of my positioning as a male researcher. A foundational value for me in this work has been an ethic of social justice, and a principle that research holds purpose in informing and developing counselling practice. Production of knowledge within this context of sensitive research calls upon a relational ethic of care (ref?) for participants' and researcher's potential vulnerabilities.

text: Ethical beginnings: Reflexive questioning in child sexuality research This paper presents my experience of taking up an area from counselling practice into research practice, and exploring a range of ethical questions. This section describes movement from identity as a counselling practitioner to a researcher identity, specifically noticing moments in which reflexivity in the practice of research have connections to experiences o f reflexivity in the practice of counselling. I explain the process of preparing and submitting my doctoral ethics application for approval and feedback. My application noted that, within this area of practice and research, this is a sensitive topic with potentially vulnerable participants, awareness of my positioning as a male researcher. A foundational value for me in this work has been an ethic of social justice, and a principle that research holds purpose in informing and developing counselling practice. Production of knowledge within this context of sensitive research calls upon a relational ethic of care (ref?) for participants' and researcher's potential vulnerabilities.

year: 2012

title: New Options for Hoeffding Trees

authors: Pfahringer, Bernhard

subjects: computer science

abstract: Hoeffding trees are state-of-the-art for processing high-speed data streams. Their ingenuity stems from updating sufficient statistics, only addressing growth when decisions can be made that are guaranteed to be almost identical to those that would be made by conventional batch learning methods. Despite this guarantee, decisions are still subject to limited lookahead and stability issues. In this paper we explore Hoeffding Option Trees, a regular Hoeffding tree containing additional option nodes that allow several tests to be applied, leading to multiple Hoeffding trees as separate paths. We show how to control tree growth in order to generate a mixture of paths, and empirically determine a reasonable number of paths. We then empirically evaluate a spectrum of Hoeffding tree variations: single trees, option trees and bagged trees. Finally, we investigate pruning. We show that on some datasets a pruned option tree can be smaller and more accurate than a single tree.

text: New Options for Hoeffding Trees Hoeffding trees are state-of-the-art for processing high-speed data streams. Their ingenuity stems from updating sufficient statistics, only addressing growth when decisions can be made that are guaranteed to be almost identical to those that would be made by conventional batch learning methods. Despite this guarantee, decisions are still subject to limited lookahead and stability issues. In this paper we explore Hoeffding Option Trees, a regular Hoeffding tree containing additional option nodes that allow several tests to be applied, leading to multiple Hoeffding trees as separate paths. We show how to control tree growth in order to generate a mixture of paths, and empirically determine a reasonable number of paths. We then empirically evaluate a spectrum of Hoeffding tree variations: single trees, option trees and bagged trees. Finally, we investigate pruning. We show that on some datasets a pruned option tree can be smaller and more accurate than a single tree.

year: 2007

title: Ka hao te rangatahi: Rangatahi Māori experiences of climate change

authors: Areta, Ranginui Charlton

subjects: Rangatahi Māori

abstract: Ka pū te rūhā, ka hao te rangatahi - Climate change is well established as one of the earth’s most pressing global issues, whereby Māori and Indigenous communities are more vulnerable to its impacts. Internationally, youth have been participating in a range of climate activism, demanding rapid and adequate responses to climate change from decision makers; with Indigenous youth advocating for Indigenous rights to be centred in these responses. More often than not, research on youth involvement in climate change focusses on the general youth population and sidelines the experiences of minorities such as global Indigenous communities. Due to this inattention, there is a lack of research focussing on rangatahi Māori experiences and perceptions of climate change, leaving rangatahi Māori to advocate for their voices to be heard.
The purpose of this research is to amplify the voices of rangatahi Māori regarding climate change, beyond where rangatahi are already sharing their voices. It focusses on rangatahi perceptions of climate change, specifically exploring how being Māori, and youth, influence their experience. This includes investigating the role rangatahi have within climate change, and any challenges and supportive factors that rangatahi may experience related to climate change.
This thesis utilises Kaupapa Māori and its guiding principles to ground this research agenda, employing Pūrākau methodology to guide research methods. Specifically, semi-structured whakawhitinga kōrero were undertaken with five rangatahi Māori participants, who are passionate about climate change and the taiao, exploring each of their diverse experiences and understandings of climate change. Following a process involving thematic and Pūrākau methodology inspired analysis, key themes from each of the rangatahi whakawhitinga kōrero are presented within a case study, maintaining individual narratives for each rangatahi.
This research found that rangatahi experience is grounded in whakapapa, shaping connection to the taiao, motivations to care about climate change, and encompassed aspirations and hopes regarding climate change responses. These narratives highlight that the exclusion of rangatahi from research spaces leaves a gap in literature that explores youth understandings on climate change. Further findings established that the participants believe that being a rangatahi presents unique skills and perspective to offer to climate spaces. Lastly, through exploring participants experiences of specifically being a rangatahi Māori, the findings of this thesis offer tangible opportunities to support rangatahi in voicing their concerns regarding climate change, as this was an identified challenge.
Ultimately, exploring the rangatahi participants’ understandings contributes to: shaping the narratives of rangatahi Māori experience of climate change; further diversifying Māori understandings of climate change and responses; and amplifying the voices of Māori youth within the growing set of literature on youth engagement in climate change. This research lays a foundation for the voices of rangatahi Māori to be actively included in climate change research, and further contest Western misconceptions that rangatahi must gain more experience to contribute to changing the world.

text: Ka hao te rangatahi: Rangatahi Māori experiences of climate change Ka pū te rūhā, ka hao te rangatahi - Climate change is well established as one of the earth’s most pressing global issues, whereby Māori and Indigenous communities are more vulnerable to its impacts. Internationally, youth have been participating in a range of climate activism, demanding rapid and adequate responses to climate change from decision makers; with Indigenous youth advocating for Indigenous rights to be centred in these responses. More often than not, research on youth involvement in climate change focusses on the general youth population and sidelines the experiences of minorities such as global Indigenous communities. Due to this inattention, there is a lack of research focussing on rangatahi Māori experiences and perceptions of climate change, leaving rangatahi Māori to advocate for their voices to be heard.
The purpose of this research is to amplify the voices of rangatahi Māori regarding climate change, beyond where rangatahi are already sharing their voices. It focusses on rangatahi perceptions of climate change, specifically exploring how being Māori, and youth, influence their experience. This includes investigating the role rangatahi have within climate change, and any challenges and supportive factors that rangatahi may experience related to climate change.
This thesis utilises Kaupapa Māori and its guiding principles to ground this research agenda, employing Pūrākau methodology to guide research methods. Specifically, semi-structured whakawhitinga kōrero were undertaken with five rangatahi Māori participants, who are passionate about climate change and the taiao, exploring each of their diverse experiences and understandings of climate change. Following a process involving thematic and Pūrākau methodology inspired analysis, key themes from each of the rangatahi whakawhitinga kōrero are presented within a case study, maintaining individual narratives for each rangatahi.
This research found that rangatahi experience is grounded in whakapapa, shaping connection to the taiao, motivations to care about climate change, and encompassed aspirations and hopes regarding climate change responses. These narratives highlight that the exclusion of rangatahi from research spaces leaves a gap in literature that explores youth understandings on climate change. Further findings established that the participants believe that being a rangatahi presents unique skills and perspective to offer to climate spaces. Lastly, through exploring participants experiences of specifically being a rangatahi Māori, the findings of this thesis offer tangible opportunities to support rangatahi in voicing their concerns regarding climate change, as this was an identified challenge.
Ultimately, exploring the rangatahi participants’ understandings contributes to: shaping the narratives of rangatahi Māori experience of climate change; further diversifying Māori understandings of climate change and responses; and amplifying the voices of Māori youth within the growing set of literature on youth engagement in climate change. This research lays a foundation for the voices of rangatahi Māori to be actively included in climate change research, and further contest Western misconceptions that rangatahi must gain more experience to contribute to changing the world.

year: 2023