Use of circle-segments as a data visualization technique for feature selection in pattern classification

One of the issues associated with pattern classification using data based machine learning systems is the “curse of dimensionality”. In this paper, the circle-segments method is proposed as a feature selection method to identify important input features before the entire data set is provided for learning with machine learning systems. Specifically, four machine learning systems are deployed for classification, viz. Multilayer Perceptron (MLP), Support Vector Machine (SVM), Fuzzy ARTMAP (FAM), and k-Nearest Neighbour (kNN). The integration between the circle-segments method and the machine learning systems has been applied to two case studies comprising one benchmark and one real data sets. Overall, the results after feature selection using the circle segments method demonstrate improvements in performance even with more than 50% of the input features eliminated from the original data sets.

“People’s law” and restorative justice: the success of circle sentencing in New South Wales

Informal sentencing procedures in remote Indigenous communities of Australia have been occurring for some time, but it was in the late 1990s that formalization of the practice began in urban areas with the advent of Indigenous sentencing and circle courts. These circle courts emerged primarily to address the over-representation and incarceration of Indigenous people in the criminal justice system. The first Indigenous urban court was assembled in Port Adelaide, South Australia in June 1999 and was named the Nunga Court. Courts emerging since in other states are based on the Nunga Court model, although they have been adapted to suit local conditions. The practice of circle sentencing was introduced in New South Wales (NSW) in Nowra in February 2002.

The inner circle of technology innovation : a case study of two Chinese firms

In the era of information economy, Chinese firms have realised that technology innovation is fundamental for organisations to gain competitive advantages in the global market. This case study evaluates the drivers and antecedents of technology innovation of two emerging Chinese multinational firms. Institutional theory, the resource-based view and the competency-based strategic perspective are used as the basis for case analysis. The findings show some similarities and differences between the growth of Chinese multinational firms and those of more traditional ones. Chinese firms appear not to follow single innovation pathways but take multiple routes combining several types of innovation, such as strategic, organisational and operational innovation. The key component in the successful technology innovation process among Chinese firms was found to be in alignment with several human resource management strategies. The case study concludes with discussion on managerial and pedagogical implications. These help address inherent differences in the innovation management process between emerging Chinese and established multinational firms.

Detection of fingertips based on the combination of color information and circle detection

Fingertips of human hand play an important role in hand-based interaction with computers. Therefore, identification of fingertips' positions on hand image is vital for developing a human computer interaction system. All most all of the research works for fingertips detection, initially isolate hand image from the background image. Most of these techniques develop color based segmentation methods because human skin color possess an exceptional characterises that can be used to isolate hand from the rest of the image quite easily. Sometimes color image segmentation becomes difficult due to illumination and background variations. To make it simple and reliable, this paper proposes a robust method for detecting fingertips of a hand image based on the combination of color segmentation and circle detection. Due to the characteristics of circularity of fingertips regions of hand boundary, any existing circle detection algorithms can be applied to detect circles at fingertips region. It is difficult to detect fingertips solely based on the circle detection method. For this reason, initially the proposed method detects all the circular regions on the image applying Circle Hough Transformation (CHT) then the fingertips are selected based on the color characteristics of the fingertips regions. Experimental results show that the proposed approach is promising.

A virtuous circle: the positive evaluation phenomenon in arts audience research

Arts impact evaluation is the subject of widespread criticism, ranging from a detailed critique of methodology to a wholesale rejection of the very purpose of the endeavour. In particular, it is often identified that audience evaluations are almost always positive. Yet whatever the critique, arts impact evaluation is becoming more and not less prevalent as a condition of public and philanthropic funding. This article explores both the methodologicaland conceptual problems that contribute to the perceived positive characterof social impact research, in two parts: (1) an investigation of the critical literature on audience evaluation, particularly in relation to the argument that evaluation is inevitably positive and as such leads to a confusion between the goals of evaluation and arts advocacy; (2) a reflection on our practices as audience researchers in the performing arts and the practical factors that contribute to the dominance of the positive in audience evaluation.

In the circle of white stones: moving through seasons with nomads of Eastern Tibet

This narrative of subsistence on the Tibetan plateau describes the life-worlds of people in a region traditionally known as Kham who move with their yaks from pasture to pasture, depending on the milk production of their herd for sustenance. Gillian Tan's story, based on her own experience of living through seasonal cycles with the people of Dora Karmo between 2006 and 2013, examines the community's powerful relationship with a Buddhist lama and their interactions with external agents of change. In showing how they perceive their environment and dwell in their world, Tan conveys a spare beauty that honors the stillness and rhythms of nomadic life.

Re-processing The Mystical Rose

This essay explores the animation practice of Australian filmmaker Michael Lee, whose career spans the late 60s to the present. His notoriously dissident and innovative feature length work The Mystical Rose (1976, 65 minutes) is the primary focus, the fulcrum point of an analysis balanced by a review of his earlier shorter formative films, his cultural milieu, the thinkers that shaped his youth and particularly his changing relation to the Catholic Church. This relationship with Christianity has gone full circle through a critical rejection, worked through in The Mystical Rose, to a re-embrace in his later films Turnaround (1983, 60 mins) and The Contemplation of the Cross (1989, 27 minutes). This trajectory is understood here in relation to Magic Realism, Michael Bakhtin’s conception of the ‘Carnivalesque’ and Surrealism. What is of particular interest historically for animation is Lee’s pioneering innovative combination of animation with live action documentation, conveying both inner and outer realities, and mapping the relationships between them.