title: Scalable and efficient multi-label classification for evolving data streams

authors: Read, Jesse

subjects: Machine learning

abstract: Many challenging real world problems involve multi-label data streams. Efficient methods exist for multi-label classification in non-streaming scenarios. However, learning in evolving streaming scenarios is more challenging, as classifiers must be able to deal with huge numbers of examples and to adapt to change using limited time and memory while being ready to predict at any point.
This paper proposes a new experimental framework for learning and evaluating on multi-label data streams, and uses it to study the performance of various methods. From this study, we develop a multi-label Hoeffding tree with multi-label classifiers at the leaves. We show empirically that this method is well suited to this challenging task. Using our new framework, which allows us to generate realistic multi-label data streams with concept drift (as well as real data), we compare with a selection of baseline methods, as well as new learning methods from the literature, and show that our Hoeffding tree method achieves fast and more accurate performance.

text: Scalable and efficient multi-label classification for evolving data streams Many challenging real world problems involve multi-label data streams. Efficient methods exist for multi-label classification in non-streaming scenarios. However, learning in evolving streaming scenarios is more challenging, as classifiers must be able to deal with huge numbers of examples and to adapt to change using limited time and memory while being ready to predict at any point.
This paper proposes a new experimental framework for learning and evaluating on multi-label data streams, and uses it to study the performance of various methods. From this study, we develop a multi-label Hoeffding tree with multi-label classifiers at the leaves. We show empirically that this method is well suited to this challenging task. Using our new framework, which allows us to generate realistic multi-label data streams with concept drift (as well as real data), we compare with a selection of baseline methods, as well as new learning methods from the literature, and show that our Hoeffding tree method achieves fast and more accurate performance.

year: 2012

title: Nachhaltigkeitslücken in der frühkindlichen Erziehung: Paradigmatischer und pädagogischer Wandel in Aotearoa Neuseeland?

authors: White, Elizabeth Jayne

abstract: Dieser Beitrag antwortet auf die von Julie Davis geäußerte Kritik an einer erheblichen Forschungslücke im Zusammenhang mit dem Forschungsdiskurs zur Nachhaltigkeit im Bereich der frühkindlichen Pädagogik. Ihre Kritik in Bezug auf die auch international noch unzureichend entwickelte Forschung hebt vor allem auf grundsätzliche Schwierigkeiten von akademischen Untersuchungen im Bereich dieser kindlichen Altersgruppe und auf praktische Probleme bei der Entwicklung neuer wissenschaftlicher Forschungsfelder ab. In diesem Essay wollen wir jedoch auf eine noch grundsätzlichere Dimension dieser Forschungslücke, man könnte auch sagen: dieses Forschungsabgrunds ("research hole"), eingehen, die wir als Resultat eines mangelnden kritischen Dialoges über das, was Nachhaltigkeit for uns, die Lehrer und Lerner eigentlich ist, ansehen.

text: Nachhaltigkeitslücken in der frühkindlichen Erziehung: Paradigmatischer und pädagogischer Wandel in Aotearoa Neuseeland? Dieser Beitrag antwortet auf die von Julie Davis geäußerte Kritik an einer erheblichen Forschungslücke im Zusammenhang mit dem Forschungsdiskurs zur Nachhaltigkeit im Bereich der frühkindlichen Pädagogik. Ihre Kritik in Bezug auf die auch international noch unzureichend entwickelte Forschung hebt vor allem auf grundsätzliche Schwierigkeiten von akademischen Untersuchungen im Bereich dieser kindlichen Altersgruppe und auf praktische Probleme bei der Entwicklung neuer wissenschaftlicher Forschungsfelder ab. In diesem Essay wollen wir jedoch auf eine noch grundsätzlichere Dimension dieser Forschungslücke, man könnte auch sagen: dieses Forschungsabgrunds ("research hole"), eingehen, die wir als Resultat eines mangelnden kritischen Dialoges über das, was Nachhaltigkeit for uns, die Lehrer und Lerner eigentlich ist, ansehen.

year: 2011

title: Nā Wai Koe? Our tūpuna call us home: Maremare whānau thinking about connections to whenua tupuna

authors: Sampson, Jasmine

subjects: Whenua Tūpuna

abstract: This research focuses on the Maremare whānau from Tiniwaitara Marae, Turakina, in order to explore the importance of our relationship with our whenua tupuna and the related concept of returning home. 

Although many academics have carefully attended to the concept of ‘disconnection’ from whenua tupuna in order to describe the effects of Māori mobility, this term unfortunately reinforces the colonial attempt to detach our people from the things that provide us with our sense of belonging. I argue that thinking about relationship with whenua tupuna through terms like ‘disconnection’ and ‘reconnection’ are unhelpful and problematic; instead, when we understand this relationship in Māori terms, our connection to our whenua tupuna is an everlasting relationship that is woven into the fabric of our whakapapa.

The research combines interviews with three generations of the Maremare whānau, including people with diverse experiences of relationships with Turakina, with critical reflection on relevant concepts from Te Ao Māori. Specifically, mobilising a Kaupapa Māori Theory approach, the thesis draws on an oriori, ‘He Oriori mō Wharaurangi’ as the methodology and foundation of this thesis. In this way, the thesis both argues and demonstrates the value of researchers, and in particular kairangahau Māori, look to mātauranga Māori to guide us in our research about Māori topics. This oriori is iwi specific, it holds kōrero tuku iho that pertains to my whakapapa as an uri of Ngā Wairiki Ngāti Apa and it is very relevant to both my kaupapa and the people participating in the rangahau.

Ultimately, whakapapa rests at the core of connection to whenua tupuna. It is the foundation in which we stand and it connects us as a people to the land that birthed us. This thesis looks at the different ways that our tūpuna call us home, the different ‘returning home’ experiences within the Maremare whānau and how people within the whānau view their connection with our whenua tupuna in Turakina. Nā wai koe? Our tūpuna call us home.

text: Nā Wai Koe? Our tūpuna call us home: Maremare whānau thinking about connections to whenua tupuna This research focuses on the Maremare whānau from Tiniwaitara Marae, Turakina, in order to explore the importance of our relationship with our whenua tupuna and the related concept of returning home. 

Although many academics have carefully attended to the concept of ‘disconnection’ from whenua tupuna in order to describe the effects of Māori mobility, this term unfortunately reinforces the colonial attempt to detach our people from the things that provide us with our sense of belonging. I argue that thinking about relationship with whenua tupuna through terms like ‘disconnection’ and ‘reconnection’ are unhelpful and problematic; instead, when we understand this relationship in Māori terms, our connection to our whenua tupuna is an everlasting relationship that is woven into the fabric of our whakapapa.

The research combines interviews with three generations of the Maremare whānau, including people with diverse experiences of relationships with Turakina, with critical reflection on relevant concepts from Te Ao Māori. Specifically, mobilising a Kaupapa Māori Theory approach, the thesis draws on an oriori, ‘He Oriori mō Wharaurangi’ as the methodology and foundation of this thesis. In this way, the thesis both argues and demonstrates the value of researchers, and in particular kairangahau Māori, look to mātauranga Māori to guide us in our research about Māori topics. This oriori is iwi specific, it holds kōrero tuku iho that pertains to my whakapapa as an uri of Ngā Wairiki Ngāti Apa and it is very relevant to both my kaupapa and the people participating in the rangahau.

Ultimately, whakapapa rests at the core of connection to whenua tupuna. It is the foundation in which we stand and it connects us as a people to the land that birthed us. This thesis looks at the different ways that our tūpuna call us home, the different ‘returning home’ experiences within the Maremare whānau and how people within the whānau view their connection with our whenua tupuna in Turakina. Nā wai koe? Our tūpuna call us home.

year: 2021