title: Change detection in categorical evolving data streams

authors: Ienco, Dino

subjects: categorical data

abstract: Detecting change in evolving data streams is a central issue for accurate adaptive learning. In real world applications, data streams have categorical features, and changes induced in the data distribution of these categorical features have not been considered extensively so far. Previous work on change detection focused on detecting changes in the accuracy of the learners, but without considering changes in the data distribution.

To cope with these issues, we propose a new unsupervised change detection method, called CDCStream (Change Detection in Categorical Data Streams), well suited for categorical data streams. The proposed method is able to detect changes in a batch incremental scenario. It is based on the two following characteristics: (i) a summarization strategy is proposed to compress the actual batch by extracting a descriptive summary and (ii) a new segmentation algorithm is proposed to highlight changes and issue warnings for a data stream. To evaluate our proposal we employ it in a learning task over real world data and we compare its results with state of the art methods. We also report qualitative evaluation in order to show the behavior of CDCStream.

text: Change detection in categorical evolving data streams Detecting change in evolving data streams is a central issue for accurate adaptive learning. In real world applications, data streams have categorical features, and changes induced in the data distribution of these categorical features have not been considered extensively so far. Previous work on change detection focused on detecting changes in the accuracy of the learners, but without considering changes in the data distribution.

To cope with these issues, we propose a new unsupervised change detection method, called CDCStream (Change Detection in Categorical Data Streams), well suited for categorical data streams. The proposed method is able to detect changes in a batch incremental scenario. It is based on the two following characteristics: (i) a summarization strategy is proposed to compress the actual batch by extracting a descriptive summary and (ii) a new segmentation algorithm is proposed to highlight changes and issue warnings for a data stream. To evaluate our proposal we employ it in a learning task over real world data and we compare its results with state of the art methods. We also report qualitative evaluation in order to show the behavior of CDCStream.

year: 2014

title: It’s time to consider LGBTQ-affirmative psychology in Malaysia

authors: Tan, Kyle K. H.

abstract: International studies have revealed stark mental health inequities affecting lesbian, gay, bisexual, transgender, and queer (LGBTQ) people. While there is increasing awareness of higher prevalence of mental health difficulties among LGBTQ people in Malaysia, this issue has often been viewed through a cisheterosexist (cisgenderism and heterosexism) lens that criminalizes, pathologizes, marginalizes, and/or delegitimizes noncisgender and nonheterosexual forms of identities. Informed by LGBTQ-affirmative psychology, this viewpoint aims to scrutinize the common misconceptions surrounding the living experiences of Malaysian LGBTQ people; these include poor mental health among LGBTQ people, victim-blaming narrative of sexual violence, LGBTQ is a mental illness, and LGBTQ is a Western influence. This viewpoint draws on empirical and theoretical research, as well as international guidelines, to debunk these misconceptions. Recommendations are also provided for psychology practitioners and researchers to embark on the journey to supporting Malaysian LGBTQ people in a culturally safe manner.

text: It’s time to consider LGBTQ-affirmative psychology in Malaysia International studies have revealed stark mental health inequities affecting lesbian, gay, bisexual, transgender, and queer (LGBTQ) people. While there is increasing awareness of higher prevalence of mental health difficulties among LGBTQ people in Malaysia, this issue has often been viewed through a cisheterosexist (cisgenderism and heterosexism) lens that criminalizes, pathologizes, marginalizes, and/or delegitimizes noncisgender and nonheterosexual forms of identities. Informed by LGBTQ-affirmative psychology, this viewpoint aims to scrutinize the common misconceptions surrounding the living experiences of Malaysian LGBTQ people; these include poor mental health among LGBTQ people, victim-blaming narrative of sexual violence, LGBTQ is a mental illness, and LGBTQ is a Western influence. This viewpoint draws on empirical and theoretical research, as well as international guidelines, to debunk these misconceptions. Recommendations are also provided for psychology practitioners and researchers to embark on the journey to supporting Malaysian LGBTQ people in a culturally safe manner.

year: 2021

title: Whakahokia te reo ki tōna taioretanga: He rautaki reo mō Waikato-Tainui

authors: Roa, Raukura

subjects: Whakaora reo

abstract: Ko te kaupapa o tēnei pepa, ko te whakatakoto i tētehi mahere rautaki hei whakakaha, hei whakapakari i te reo Māori o te iwi o Waikato-Tainui. Ehara tēnei i te pepa wetewete i te rautaki whakaora reo, ehara hoki i te pepa tātari i ngā rautaki whakaora reo o te ao. Engari ia, he pepa whakatakoto i ōku whakaaro mō tētehi huarahi e ora ai te reo o Waikato-Tainui. Kei te rārangi whakapuakanga ētehi rauemi i toro atu ai au, heoi, kāore i āta tātarihia mō tēnei pepa. Nō reira, e rima ngā wāhanga o tēnei pepa. Ko te wāhanga tuatahi, he whakakaupapa i tēnei rautaki. Ko te wāhanga tuarua, he whakamārama i ngā whakahaeretanga o te iwi. Ko te wāhanga tuatoru, he whakatakoto i ngā whāinga o te rautaki. Ko te wāhanga tuawhā, he whakatakoto i te mahere e tutuki ai ngā whāinga o te rautaki. Ka mutu he whakatakoto whakaaro atu anō kāore i whakauru ki roto i te rautaki.

text: Whakahokia te reo ki tōna taioretanga: He rautaki reo mō Waikato-Tainui Ko te kaupapa o tēnei pepa, ko te whakatakoto i tētehi mahere rautaki hei whakakaha, hei whakapakari i te reo Māori o te iwi o Waikato-Tainui. Ehara tēnei i te pepa wetewete i te rautaki whakaora reo, ehara hoki i te pepa tātari i ngā rautaki whakaora reo o te ao. Engari ia, he pepa whakatakoto i ōku whakaaro mō tētehi huarahi e ora ai te reo o Waikato-Tainui. Kei te rārangi whakapuakanga ētehi rauemi i toro atu ai au, heoi, kāore i āta tātarihia mō tēnei pepa. Nō reira, e rima ngā wāhanga o tēnei pepa. Ko te wāhanga tuatahi, he whakakaupapa i tēnei rautaki. Ko te wāhanga tuarua, he whakamārama i ngā whakahaeretanga o te iwi. Ko te wāhanga tuatoru, he whakatakoto i ngā whāinga o te rautaki. Ko te wāhanga tuawhā, he whakatakoto i te mahere e tutuki ai ngā whāinga o te rautaki. Ka mutu he whakatakoto whakaaro atu anō kāore i whakauru ki roto i te rautaki.

year: 2011