Yabo Xu. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2003. / Includes bibliographical references (leaves 57-60). / Abstracts in English and Chinese. / Abstract --- p.i / Acknowledgement --- p.iii / Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Frequent Pattern Mining --- p.1 / Chapter 1.2 --- Biosequence Pattern Mining --- p.2 / Chapter 1.3 --- Organization of the Thesis --- p.4 / Chapter 2 --- PP-Mine: Fast Mining Frequent Patterns In-Memory --- p.5 / Chapter 2.1 --- Background --- p.5 / Chapter 2.2 --- The Overview --- p.6 / Chapter 2.3 --- PP-tree Representations and Its Construction --- p.7 / Chapter 2.4 --- PP-Mine --- p.8 / Chapter 2.5 --- Discussions --- p.14 / Chapter 2.6 --- Performance Study --- p.15 / Chapter 3 --- Fast Biosequence Patterns Mining --- p.20 / Chapter 3.1 --- Background --- p.21 / Chapter 3.1.1 --- Differences in Biosequences --- p.21 / Chapter 3.1.2 --- Mining Sequential Patterns --- p.22 / Chapter 3.1.3 --- Mining Long Patterns --- p.23 / Chapter 3.1.4 --- Related Works in Bioinformatics --- p.23 / Chapter 3.2 --- The Overview --- p.24 / Chapter 3.2.1 --- The Problem --- p.24 / Chapter 3.2.2 --- The Overview of Our Approach --- p.25 / Chapter 3.3 --- The Segment Phase --- p.26 / Chapter 3.3.1 --- Finding Frequent Segments --- p.26 / Chapter 3.3.2 --- The Index-based Querying --- p.27 / Chapter 3.3.3 --- The Compression-based Querying --- p.30 / Chapter 3.4 --- The Pattern Phase --- p.32 / Chapter 3.4.1 --- The Pruning Strategies --- p.34 / Chapter 3.4.2 --- The Querying Strategies --- p.37 / Chapter 3.5 --- Experiment --- p.40 / Chapter 3.5.1 --- Synthetic Data Sets --- p.40 / Chapter 3.5.2 --- Biological Data Sets --- p.46 / Chapter 4 --- Conclusion --- p.55 / Bibliography --- p.60

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This dissertation presents a new approach to image interpretation which can produce hierarchical descriptions of visually sensed scenes based on an incrementally learnt hierarchical knowledge base. Multiple segmentation and labelling hypotheses are generated with local constraint satisfaction being achieved through a hierarchical form of relaxation labelling. The traditionally unidirectional segmentation-matching process is recast into a dynamic closed-loop system where the current interpretation state is used to drive the lower level image processing functions. The theory presented in this dissertation is applied to a new object recognition and scene understanding system called Cite which is described in detail.

This thesis is focused on Aboriginal Education Workers (AEWs) who work with, support and care for Indigenous students in schools in South Australia. AEWs work in the ‘border zones’ (Giroux 2005) between the values of schools and the expectations of Indigenous communities. This thesis highlights how AEWs experience indirect discrimination in the workplace as a result of their complex racialised position. In particular, there is a general absence of recognition of AEWs’ caring role by non-Indigenous staff in schools. AEWs are not only marginalised in schools, but also at an institutional level. While AEWs’ working conditions have improved, the ‘redistribution’ (Fraser & Honneth 2003, p. 10) of better working conditions has not eliminated indirect discrimination in the workplace. Furthermore, there is little research regarding AEWs in Indigenous education. Thus at three levels, namely school, Department of Education and Children’s Services (DECS) and academia, there is a cyclical pattern that perpetuates an absence of recognition of AEWs. This thesis uses whiteness theory (Frankenberg 1993) as a theoretical framework to examine this lack of recognition and the consequent low status of AEWs in schools. The thesis emerges from research, experience working as a teacher in a remote Aboriginal school with AEWs, and in-depth semi-structured interviews with 12 AEWs who are working in South Australian state schools. Standpoint theory (Collins 2004; Harding 2004) is used as both a method and methodology in order to understand and map AEWs’ position in schools. A common theme raised by all of the AEWs in the interviews is the absence of recognition of their work in schools by non-Indigenous staff and the consequent feeling of marginalisation in the workplace. In this thesis the site-specific contexts of the interviewees and the effects of whiteness are examined. The findings that emerged from the in-depth semi-structured interviews with AEWs were concerned with Indigenous ethics of care models. The narratives from the interviewees who were AEWs revealed how white ethics of care practices in schools de-legitimise Indigenous ethics of care. Furthermore, the discursive regimes that govern school policy and protocol often limit AEWs’ ability to respond effectively to Indigenous student needs. This thesis highlights the complexities and contradictions of AEWs who are working in the border zones. As a result, AEWs often feel caught between school expectations and community protocols. This thesis advocates equality of recognition of Indigenous ethics of care practices to address the indirect discrimination that AEWs experience. It concludes with a map for recognition of AEWs' care practices on an institutional level in relation to academia and DECS, and in schools in order to overturn the continual marginalisation of AEWs in South Australia. It argues for a values shift for non-Indigenous teachers and staff in schools and at the institutional levels in DECS and academia. In particular, this involves a values shift by non-Indigenous teachers, academics and policy makers towards an understanding of whiteness. Recommendations are provided in the concluding chapter that signpost possible moves towards equality of recognition of Indigenous ethics of care practices by non-Indigenous staff in schools.

Thesis (Ph.D.)--University of Delaware, 2007. / Principal faculty advisor: James G. Richards, College of Health Sciences. Includes bibliographical references.

<p>This study was about disability organisations opinion concerning ICF: s importance in their work to receive the same recognition and human rights for their members as citizens. The aim has been to elucidate disability organisations awareness about and use/non use of ICF and to increase the understanding of ICF: s importance for recognition and redistribution. Three different methods have been used: literature study, questionnaire survey, both on counties' (27) - and national (26) level and interviews (5) on national level. There is also a distinct difference between the disability organisations that represents people with visible impairments, who don’t think that ICF is so useful and they that represent people with invisible impairments, who thinks that ICF is a useful tool. This difference exists both in the use of ICF and the classifications importance for recognition but not ICF: s importance for redistribution. The main conclusion of the study is that awareness about and education around ICF is needed among disability organisations. A restructuring of ICF is also needed, the language should be simplified and the codes should be faded down so that the focus will be on ICF: s intention and the mind map that the classification offers. This is also necessary so that ICF becomes accessible for everybody.</p>

To assess the context dependence of kin discriminating behavior, I examined kin-biased aggregation behavior in tadpoles of R. cascadae in different ecological conditions. I manipulated food distribution, predator presence, thermal heterogeneity, and relatedness in a multifactorial mesocosm experiment. All four factors interacted to influence tadpole dispersion. My results suggest that kinship is an important factor in aggregation behavior dependent upon ecological conditions. Kin-biased predator defense mechanisms have been proposed as a possible functional explanation for kin discrimination in anuran larvae. Tadpoles may better cooperate in predator vigilance while in kin groups or release kin specific alarm pheromones when attacked by a predator. I examined predator avoidance and alarm response behavior in tadpoles of the Cascades frog (Rana cascadae) and tested whether such behavior is influenced by kinship factors. I found no evidence of an alarm response behavior in R. cascadae. My results suggest that crushed tadpoles appear to initiate a feeding response rather than an alarm response as has been previously proposed. Kin-biased competitive interactions have been proposed as a possible functional explanation for kin discrimination in anuran larvae. Tadpoles may direct competitive interactions away from kin. I examined the role of kinship in growth and development of tadpoles of the Cascades frog (Rana cascadae) in both laboratory and field studies. In the laboratory, individuals reared in kin groups had a significantly smaller mass at metamorphosis than individuals reared in mixed groups. However, kinship effects in the field depended upon the treatment context. Depending upon tadpole density and access to flocculent substrate, tadpoles survived better (after adjusting for differences in mass) in kin groups than in mixed groups. My results demonstrate that kinship factors can affect growth and development in tadpoles, depending upon the ecological conditions. Furthermore, my results provide a functional explanation for the kin discriminating behavior observed in R. cascadae and suggest why such behavior may be context dependent. / Graduation date: 1995

The paper presents a simple model for recovering affine shape and correspondence from two orthographic views of a 3D object. It is shown that four corresponding points along two orthographic views, taken under similar illumination conditions, determine affine shape and correspondence for all other points. The scheme is useful for purposes of visual recognition by generating novel views of an object given two model views. It is also shown that the scheme can handle objects with smooth boundaries, to a good approximation, without introducing any modifications or additional model views.

This paper describes a representation of the dynamics of human walking action for the purpose of person identification and classification by gait appearance. Our gait representation is based on simple features such as moments extracted from video silhouettes of human walking motion. We claim that our gait dynamics representation is rich enough for the task of recognition and classification. The use of our feature representation is demonstrated in the task of person recognition from video sequences of orthogonal views of people walking. We demonstrate the accuracy of recognition on gait video sequences collected over different days and times, and under varying lighting environments. In addition, preliminary results are shown on gender classification using our gait dynamics features.