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Full-Text Articles in Engineering

A Tool For Online Mechanics Learning Resource Sharing, Thomas Goldfinch, Anne Gardner, Timothy Mccarthy, Alan Henderson, Giles Thomas, Anna L. Carew Jan 2010

A Tool For Online Mechanics Learning Resource Sharing, Thomas Goldfinch, Anne Gardner, Timothy Mccarthy, Alan Henderson, Giles Thomas, Anna L. Carew

Faculty of Engineering - Papers (Archive)

Many hours and dollars have been spent developing new resources to improve learning outcomes in engineering mechanics courses. While many of these have been developed into packaged learning systems, available for purchase by other universities, a large proportion are available free of charge for students looking to expand their study options. Over the past eighteen months, a group of engineering academics, through Australian Learning and Teaching Council funding, has been working to develop a way of guiding students towards these online engineering mechanics learning resources. One of the outcomes of this work is an online, database-driven directory of existing online …


A Scalable Algorithm For Learning A Mahalanobis Distance Metric, Junae Kim, Chunhua Shen, Lei Wang Jan 2010

A Scalable Algorithm For Learning A Mahalanobis Distance Metric, Junae Kim, Chunhua Shen, Lei Wang

Faculty of Engineering and Information Sciences - Papers: Part A

A distance metric that can accurately re°ect the intrinsic characteristics of data is critical for visual recognition tasks. An e®ective solution to de¯ning such a metric is to learn it from a set of training sam- ples. In this work, we propose a fast and scalable algorithm to learn a Ma- halanobis distance. By employing the principle of margin maximization to secure better generalization performances, this algorithm formulates the metric learning as a convex optimization problem with a positive semide¯nite (psd) matrix variable. Based on an important theorem that a psd matrix with trace of one can always be represented …


A Multi-Resolution Approach To Learning With Overlapping Communities, Lei Tang, Xufei Wang, Huan Liu, Lei Wang Jan 2010

A Multi-Resolution Approach To Learning With Overlapping Communities, Lei Tang, Xufei Wang, Huan Liu, Lei Wang

Faculty of Engineering and Information Sciences - Papers: Part A

The recent few years have witnessed a rapid surge of par- ticipatory web and social media, enabling a new laboratory for studying human relations and collective behavior on an unprecedented scale. In this work, we attempt to harness the predictive power of social connections to determine the preferences or behaviors of individuals such as whether a user supports a certain political view, whether one likes one product, whether he/she would like to vote for a presidential candidate, etc. Since an actor is likely to participate in mul- tiple dierent communities with each regulating the actor's behavior in varying degrees, and …


The Influence Of Action Learning On Student Perception And Performance, Brad Stappenbelt Jan 2010

The Influence Of Action Learning On Student Perception And Performance, Brad Stappenbelt

Faculty of Engineering - Papers (Archive)

The study of floating oscillating water column (OWC) wave energy conversion (WEC) device performance includes analysis of the dynamic coupling of the water column and the floating structure. In the present investigation, a mechanical oscillator model was proposed in order to examine this relationship for the heave motion of a floating wave energy conversion device. Characterisation of the dynamic system optimal behaviour was performed by examining the effect of relative OWC and floating structure natural frequencies, the phase relationships of the various system components and the optimal power take-off damping of the system. It was determined that separation of the …