title: Cartesian genetic programming for trading: a preliminary investigation

authors: Mayo, Michael

subjects: Cartesian Genetic Programming

abstract: In this paper, a preliminary investigation of Cartesian Genetic Programming (CGP) for algorithmic intraday trading is conducted. CGP is a recent new variant of genetic programming that differs from traditional approaches in a number of ways, including being able to evolve programs with limited size and with multiple outputs. CGP is used to evolve a predictor for intraday price movements, and trading strategies using the evolved predictors are evaluated along three dimensions (return, maximum drawdown and recovery factor) and against four different financial datasets (the Euro/US dollar exchange rate and the Dow Jones Industrial Average during periods from 2006 and 2010). We show that CGP is capable in many instances of evolving programs that, when used as trading strategies, lead to modest positive returns.

text: Cartesian genetic programming for trading: a preliminary investigation In this paper, a preliminary investigation of Cartesian Genetic Programming (CGP) for algorithmic intraday trading is conducted. CGP is a recent new variant of genetic programming that differs from traditional approaches in a number of ways, including being able to evolve programs with limited size and with multiple outputs. CGP is used to evolve a predictor for intraday price movements, and trading strategies using the evolved predictors are evaluated along three dimensions (return, maximum drawdown and recovery factor) and against four different financial datasets (the Euro/US dollar exchange rate and the Dow Jones Industrial Average during periods from 2006 and 2010). We show that CGP is capable in many instances of evolving programs that, when used as trading strategies, lead to modest positive returns.

year: 2012

title: Ecosystem services modelling to analyse the isolation of protected areas from a social-ecological perspective

authors: Ghasemi, Mitra

subjects: Biodiversity

abstract: Biodiversity loss continues to increase globally despite conservation strategies such as the designation of protected areas and the implementation of environmental management practices. Land use changes often exacerbate the spatial isolation of protected areas, undermining their biodiversity conservation goals and the provision of ecosystem services. To address this issue, the present study investigates how a social-ecological approach, incorporating ecosystem services modelling, can address protected areas isolation and enhance habitat connectivity, using Egmont National Park in Aotearoa New Zealand as a case study. The analysis focuses on five ecosystem services including carbon sequestration, habitat quality, timber production, pasture production, and outdoor recreation. Findings highlight significant synergies and trade-offs, particularly between regulating services within the park and provisioning services in the surrounding grasslands, revealing critical social-ecological conflicts. In particular, the contrast between the indigenous forest within the park, which supports high habitat quality and carbon storage, and the surrounding grasslands, which are highly productive for pasture, underscores the challenges of balancing conservation goals with agricultural activities. This study develops social-ecological units to inform integrated environmental management strategies, aiming to reduce isolation, improve connectivity, and align biodiversity conservation with human well-being. These findings provide actionable insights for shifting trade-offs to synergies and supporting sustainable management practices.

text: Ecosystem services modelling to analyse the isolation of protected areas from a social-ecological perspective Biodiversity loss continues to increase globally despite conservation strategies such as the designation of protected areas and the implementation of environmental management practices. Land use changes often exacerbate the spatial isolation of protected areas, undermining their biodiversity conservation goals and the provision of ecosystem services. To address this issue, the present study investigates how a social-ecological approach, incorporating ecosystem services modelling, can address protected areas isolation and enhance habitat connectivity, using Egmont National Park in Aotearoa New Zealand as a case study. The analysis focuses on five ecosystem services including carbon sequestration, habitat quality, timber production, pasture production, and outdoor recreation. Findings highlight significant synergies and trade-offs, particularly between regulating services within the park and provisioning services in the surrounding grasslands, revealing critical social-ecological conflicts. In particular, the contrast between the indigenous forest within the park, which supports high habitat quality and carbon storage, and the surrounding grasslands, which are highly productive for pasture, underscores the challenges of balancing conservation goals with agricultural activities. This study develops social-ecological units to inform integrated environmental management strategies, aiming to reduce isolation, improve connectivity, and align biodiversity conservation with human well-being. These findings provide actionable insights for shifting trade-offs to synergies and supporting sustainable management practices.

year: 2025

title: Weaving Mana Wahine and Masi methodology: Centring the embodied experiences of young Māori and Pasifika wāhine in physical activity and everyday life

authors: Nemani, Mihi Joy

subjects: Aotearoa New Zealand

abstract: Young Indigenous Māori and Pasifika wāhine (women) in Aotearoa New Zealand (hereafter Aotearoa) have too often been framed as vulnerable, ‘at risk’ and problematic in the media, policy and research. This thesis moves beyond these deficit framings and uses an Indigenous feminist, strengths-based approach by centring the voices and lived experiences of young Māori and Pasifika wāhine who are agentic in their everyday lives, celebrate their strong brown bodies and are physically active. 

Being an Indigenous feminist early career researcher of Māori-Samoan ancestry, I intentionally weave Mana Wahine (Māori) and Masi (Pasifika) methodologies throughout all aspects of this research. Employing wānanga (focus group discussions), individual interviews and digital methods, I gather knowledge from a total of 31 young Māori and Pasifika wāhine residing in two low socio-economic urban regions (Porirua and South Auckland) in Te Ika-a-Maui, the North Island of Aotearoa. Centring their voices and lived experiences, I examine how the young wāhine embrace and weave their intersectional identities with culture, body image and physical activity. 

This is a PhD with publication. It begins with an introductory chapter and a literature review chapter that locates the project in the context of Aotearoa and the local and international literature. In the methods chapter, which is a published article, I focus on the importance of creating culturally safe and supportive spaces for young wāhine to participate in research that feels meaningful to them. The empirical chapters are presented in three different manuscripts. Chapter Four contains a manuscript (currently under review) that focuses on the intersectional identities of the young wāhine. It is structured using three key themes, including 1) ethnic and cultural identities, 2) navigating, and 3) how they embrace cultural pride, particularly through family values, customs and responsibilities. Chapter Five is a published manuscript that explores body image through an intersectional Indigenous feminist lens. This publication examines cultural perspectives that influence their views on body image and provides insights into how the young wāhine navigate body image stereotypes. Chapter six is the final empirical manuscript (currently under review) that evaluates the motivations the young wāhine have for participation in physical activity. It examines the types of activities they enjoy and provides insights into how and why they use cultural knowledge as a motivator for participation.

This research contributes to international literature conducted with, for and by Indigenous feminist scholars on young women’s identities, body image and physical activity. It responds to the limited academic scholarship that explores the lived experiences of young Māori and Pasifika wāhine in Aotearoa and their nuanced cultural knowledge of their bodies. In so doing, this research offers insights and new ways of understanding the complex lives of young Māori and Pasifika wāhine, and highlights the importance of intersectional approaches and localized Indigenous methods that listen to, and amplify the voices of young wāhine.

text: Weaving Mana Wahine and Masi methodology: Centring the embodied experiences of young Māori and Pasifika wāhine in physical activity and everyday life Young Indigenous Māori and Pasifika wāhine (women) in Aotearoa New Zealand (hereafter Aotearoa) have too often been framed as vulnerable, ‘at risk’ and problematic in the media, policy and research. This thesis moves beyond these deficit framings and uses an Indigenous feminist, strengths-based approach by centring the voices and lived experiences of young Māori and Pasifika wāhine who are agentic in their everyday lives, celebrate their strong brown bodies and are physically active. 

Being an Indigenous feminist early career researcher of Māori-Samoan ancestry, I intentionally weave Mana Wahine (Māori) and Masi (Pasifika) methodologies throughout all aspects of this research. Employing wānanga (focus group discussions), individual interviews and digital methods, I gather knowledge from a total of 31 young Māori and Pasifika wāhine residing in two low socio-economic urban regions (Porirua and South Auckland) in Te Ika-a-Maui, the North Island of Aotearoa. Centring their voices and lived experiences, I examine how the young wāhine embrace and weave their intersectional identities with culture, body image and physical activity. 

This is a PhD with publication. It begins with an introductory chapter and a literature review chapter that locates the project in the context of Aotearoa and the local and international literature. In the methods chapter, which is a published article, I focus on the importance of creating culturally safe and supportive spaces for young wāhine to participate in research that feels meaningful to them. The empirical chapters are presented in three different manuscripts. Chapter Four contains a manuscript (currently under review) that focuses on the intersectional identities of the young wāhine. It is structured using three key themes, including 1) ethnic and cultural identities, 2) navigating, and 3) how they embrace cultural pride, particularly through family values, customs and responsibilities. Chapter Five is a published manuscript that explores body image through an intersectional Indigenous feminist lens. This publication examines cultural perspectives that influence their views on body image and provides insights into how the young wāhine navigate body image stereotypes. Chapter six is the final empirical manuscript (currently under review) that evaluates the motivations the young wāhine have for participation in physical activity. It examines the types of activities they enjoy and provides insights into how and why they use cultural knowledge as a motivator for participation.

This research contributes to international literature conducted with, for and by Indigenous feminist scholars on young women’s identities, body image and physical activity. It responds to the limited academic scholarship that explores the lived experiences of young Māori and Pasifika wāhine in Aotearoa and their nuanced cultural knowledge of their bodies. In so doing, this research offers insights and new ways of understanding the complex lives of young Māori and Pasifika wāhine, and highlights the importance of intersectional approaches and localized Indigenous methods that listen to, and amplify the voices of young wāhine.

year: 2024-10-20