title: GNUsmail: Open framework for on-line email classification

authors: Carmona-Cejudo, José M.

subjects: computer science

abstract: Real-time classification of massive email data is a challenging task that presents its own particular difficulties. Since email data presents an important temporal component, several problems arise: emails arrive continuously, and the criteria used to classify those emails can change, so the learning algorithms have to be able to deal with concept drift. Our problem is more general than spam detection, which has received much more attention in the literature.
In this paper we present GNUsmail, an open-source extensible framework for email classification, which structure supports incremental and on-line learning. This framework enables the incorporation of algorithms developed by other researchers, such as those included in WEKA and MOA. We evaluate this framework, characterized by two overlapping phases (pre-processing and learning), using the ENRON dataset, and we compare the results achieved by WEKA and MOA algorithms.

text: GNUsmail: Open framework for on-line email classification Real-time classification of massive email data is a challenging task that presents its own particular difficulties. Since email data presents an important temporal component, several problems arise: emails arrive continuously, and the criteria used to classify those emails can change, so the learning algorithms have to be able to deal with concept drift. Our problem is more general than spam detection, which has received much more attention in the literature.
In this paper we present GNUsmail, an open-source extensible framework for email classification, which structure supports incremental and on-line learning. This framework enables the incorporation of algorithms developed by other researchers, such as those included in WEKA and MOA. We evaluate this framework, characterized by two overlapping phases (pre-processing and learning), using the ENRON dataset, and we compare the results achieved by WEKA and MOA algorithms.

year: 2011

title: An investigation of self-learning and self-protection for Adaptive Digital Twins

authors: Anderson-Scott, Chris

subjects: Digital twins

abstract: Adaptive Digital Twins are applicable to a number of fields, including the cybersecurity of industial control systems. This thesis prototypes a Self-Learning adaptive digital twin and posits an architecture for the creation of digital twins based on the learnings gained from the prototype. The prototype shows the efficacy of control theoretical approaches for adaptive digital twins for both modelling and protecting a system, and the architecture posits a generalised method for developing adaptive digital twins.

text: An investigation of self-learning and self-protection for Adaptive Digital Twins Adaptive Digital Twins are applicable to a number of fields, including the cybersecurity of industial control systems. This thesis prototypes a Self-Learning adaptive digital twin and posits an architecture for the creation of digital twins based on the learnings gained from the prototype. The prototype shows the efficacy of control theoretical approaches for adaptive digital twins for both modelling and protecting a system, and the architecture posits a generalised method for developing adaptive digital twins.

year: 2021

title: Riperata kahutia: a woman of mana

authors: Nikora, Shelley Aroha

subjects: Riperata Kahutia

abstract: Riperata Kahutia is widely remembered as a leader in the history of Tūranganuiā-
Kiwa, who fought to retain and repossess land during the difficult times of the
1860's. During this period of rapid social change and political upheavals resulting
in injustices, the exercise of rangatiratanga took many forms. Responses to
change covered a wide spectrum and there was no 'right' way of doing things,
simply leaders making decisions on the basis of what they and their people
thought at the time were best. Riperata utilised the law as a means of retaining
the land and the mana of her people. While her status as a rangatira was never in
doubt, innuendo surfaced suggesting she may have received more land entitlement
than she was qualified for.
The activities by Riperata may have been different from other leaders but the
purpose was the same: to preserve the people and the land. Her strategies for
doing so, based on her inherited mana and upbringing, her knowledge of local iwi
traditions, her acquisition of new skills introduced by Pākehā and her innovative
approaches to exercising her rangatiratanga, make her a worthwhile study.
This thesis will support the viewpoint that Riperata Kahutia acted on behalf of her
people and for the good of her people. It will be argued Riperata was a visionary
who embraced the changes imposed upon a society enduring the consequences of
colonisation. A major objective is to dispel suggestions she embellished her
rights.

text: Riperata kahutia: a woman of mana Riperata Kahutia is widely remembered as a leader in the history of Tūranganuiā-
Kiwa, who fought to retain and repossess land during the difficult times of the
1860's. During this period of rapid social change and political upheavals resulting
in injustices, the exercise of rangatiratanga took many forms. Responses to
change covered a wide spectrum and there was no 'right' way of doing things,
simply leaders making decisions on the basis of what they and their people
thought at the time were best. Riperata utilised the law as a means of retaining
the land and the mana of her people. While her status as a rangatira was never in
doubt, innuendo surfaced suggesting she may have received more land entitlement
than she was qualified for.
The activities by Riperata may have been different from other leaders but the
purpose was the same: to preserve the people and the land. Her strategies for
doing so, based on her inherited mana and upbringing, her knowledge of local iwi
traditions, her acquisition of new skills introduced by Pākehā and her innovative
approaches to exercising her rangatiratanga, make her a worthwhile study.
This thesis will support the viewpoint that Riperata Kahutia acted on behalf of her
people and for the good of her people. It will be argued Riperata was a visionary
who embraced the changes imposed upon a society enduring the consequences of
colonisation. A major objective is to dispel suggestions she embellished her
rights.

year: 2009