title: A novel deterministic approach for aspect-based opinion mining in tourism products reviews

authors: Marrese-Taylor, Edison

subjects: aspect-based

abstract: This work proposes an extension of Bing Liu's aspect-based opinion mining approach in order to apply it to the tourism domain. The extension concerns with the fact that users refer differently to different kinds of products when writing reviews on the Web. Since Liu's approach is focused on physical product reviews, it could not be directly applied to the tourism domain, which presents features that are not considered by the model. Through a detailed study of on-line tourism product reviews, we found these features and then model them in our extension, proposing the use of new and more complex NLP-based rules for the tasks of subjective and sentiment classification at the aspect-level. We also entail the task of opinion visualization and summarization and propose new methods to help users digest the vast availability of opinions in an easy manner. Our work also included the development of a generic architecture for an aspect-based opinion mining tool, which we then used to create a prototype and analyze opinions from TripAdvisor in the context of the tourism industry in Los Lagos, a Chilean administrative region also known as the Lake District. Results prove that our extension is able to perform better than Liu's model in the tourism domain, improving both Accuracy and Recall for the tasks of subjective and sentiment classification. Particularly, the approach is very effective in determining the sentiment orientation of opinions, achieving an F-measure of 92% for the task. However, on average, the algorithms were only capable of extracting 35% of the explicit aspect expressions, using a non-extended approach for this task. Finally, results also showed the effectiveness of our design when applied to solving the industry's special issues in the Lake District, since almost 80% of the users that used our tool considered that our tool adds valuable information to their business.

text: A novel deterministic approach for aspect-based opinion mining in tourism products reviews This work proposes an extension of Bing Liu's aspect-based opinion mining approach in order to apply it to the tourism domain. The extension concerns with the fact that users refer differently to different kinds of products when writing reviews on the Web. Since Liu's approach is focused on physical product reviews, it could not be directly applied to the tourism domain, which presents features that are not considered by the model. Through a detailed study of on-line tourism product reviews, we found these features and then model them in our extension, proposing the use of new and more complex NLP-based rules for the tasks of subjective and sentiment classification at the aspect-level. We also entail the task of opinion visualization and summarization and propose new methods to help users digest the vast availability of opinions in an easy manner. Our work also included the development of a generic architecture for an aspect-based opinion mining tool, which we then used to create a prototype and analyze opinions from TripAdvisor in the context of the tourism industry in Los Lagos, a Chilean administrative region also known as the Lake District. Results prove that our extension is able to perform better than Liu's model in the tourism domain, improving both Accuracy and Recall for the tasks of subjective and sentiment classification. Particularly, the approach is very effective in determining the sentiment orientation of opinions, achieving an F-measure of 92% for the task. However, on average, the algorithms were only capable of extracting 35% of the explicit aspect expressions, using a non-extended approach for this task. Finally, results also showed the effectiveness of our design when applied to solving the industry's special issues in the Lake District, since almost 80% of the users that used our tool considered that our tool adds valuable information to their business.

year: 2014-12-01

title: Mental Health Service Provision for the People of Cambridge: Are services facilitating recovery?

authors: Cleland, Hannah Nicole

subjects: mental health services

abstract: The purpose of the present research was to investigate consumer perspectives of mental health service provision in Cambridge and whether services were helpful in facilitating recovery. Cambridge is a small township in the Waikato region, approximately twenty-five kilometers south-east of Hamilton. The study aimed to: gain an understanding of consumers’ interpretations of recovery; identify consumer perspectives of service delivery in Cambridge; assess whether services in Cambridge are working from a recovery ethos; and determine how consumers’ think service delivery could be improved. Interviews with 14 consumers of mental health services were completed. The key findings of this study suggest that the mental health needs of Cambridge consumer’s were not being met. More specifically, consumers’ who had severe or mild mental illness were reasonably happy with service delivery. However, consumers whose mental illness impacted their life considerably, yet their symptoms were not deemed severe enough to access public services, identified significant discrepancies between service provision and recovery facilitation.

text: Mental Health Service Provision for the People of Cambridge: Are services facilitating recovery? The purpose of the present research was to investigate consumer perspectives of mental health service provision in Cambridge and whether services were helpful in facilitating recovery. Cambridge is a small township in the Waikato region, approximately twenty-five kilometers south-east of Hamilton. The study aimed to: gain an understanding of consumers’ interpretations of recovery; identify consumer perspectives of service delivery in Cambridge; assess whether services in Cambridge are working from a recovery ethos; and determine how consumers’ think service delivery could be improved. Interviews with 14 consumers of mental health services were completed. The key findings of this study suggest that the mental health needs of Cambridge consumer’s were not being met. More specifically, consumers’ who had severe or mild mental illness were reasonably happy with service delivery. However, consumers whose mental illness impacted their life considerably, yet their symptoms were not deemed severe enough to access public services, identified significant discrepancies between service provision and recovery facilitation.

year: 2010

title: What is the difference? What factors contribute to the variation of achievement for Year 7 and 8 Māori students in high decile, full primary schools?

authors: McLocklan, Sue

subjects: Maori student achievement

abstract: The educational disparity between indigenous Māori students and those of the majority continue to be a major issue in New Zealand. Attempting to bridge the gap for Māori students has generated focus on Māori student engagement in the classroom, the actions and understanding of the teacher and the relationship and interactions between the teacher and students in their learning environment. Elements of culturally responsive pedagogy have been identified as positive contributing factors to accelerating academic achievement for secondary Māori mainstream students. 
This small-scale cross-cultural exploratory qualitative research project seeks to identify the factors that contribute to student achievement variation for Year 7 and 8 students in high decile full primary schools and the integration of teacher’s cultural competencies in high quality learning opportunities. Within a kaupapa Māori research process, this study uses empirical data collected from a purposive sample through a semi-structured individual interview and a for self-assessment. Voluntary research participants were twelve students and six teachers in three schools in the Bay of Plenty, Waikato and Wellington regions. This research examines the engagement of student and teacher in pedagogical practice, learning variables, cultural knowledge and practices attributable to positive academic achievement for Māori. 
The findings reveal that when teachers place themselves in an agentic position; adopt a professional commitment and willingness to engage in effective relations, interactions and reciprocal practices to support Māori learners, high levels of relational trust and expectations prevail through mutual respect and interdependence to attain successful educational outcomes.
Further teacher professional learning is essential to enlighten and deepen teachers' understanding of culturally responsive pedagogy to enable Māori learners to reach their potential to participate and contribute in their world of choice.

text: What is the difference? What factors contribute to the variation of achievement for Year 7 and 8 Māori students in high decile, full primary schools? The educational disparity between indigenous Māori students and those of the majority continue to be a major issue in New Zealand. Attempting to bridge the gap for Māori students has generated focus on Māori student engagement in the classroom, the actions and understanding of the teacher and the relationship and interactions between the teacher and students in their learning environment. Elements of culturally responsive pedagogy have been identified as positive contributing factors to accelerating academic achievement for secondary Māori mainstream students. 
This small-scale cross-cultural exploratory qualitative research project seeks to identify the factors that contribute to student achievement variation for Year 7 and 8 students in high decile full primary schools and the integration of teacher’s cultural competencies in high quality learning opportunities. Within a kaupapa Māori research process, this study uses empirical data collected from a purposive sample through a semi-structured individual interview and a for self-assessment. Voluntary research participants were twelve students and six teachers in three schools in the Bay of Plenty, Waikato and Wellington regions. This research examines the engagement of student and teacher in pedagogical practice, learning variables, cultural knowledge and practices attributable to positive academic achievement for Māori. 
The findings reveal that when teachers place themselves in an agentic position; adopt a professional commitment and willingness to engage in effective relations, interactions and reciprocal practices to support Māori learners, high levels of relational trust and expectations prevail through mutual respect and interdependence to attain successful educational outcomes.
Further teacher professional learning is essential to enlighten and deepen teachers' understanding of culturally responsive pedagogy to enable Māori learners to reach their potential to participate and contribute in their world of choice.

year: 2013