University of Wollongong

About: University of Wollongong is a education organization based out in Wollongong, New South Wales, Australia. It is known for research contribution in the topics: Population & Context (language use). The organization has 15674 authors who have published 46658 publications receiving 1197471 citations. The organization is also known as: UOW & Wollongong University.

Three-dimensional object recognition is viewpoint dependent

Abstract: The human visual system is faced with the computationally difficult problem of achieving object constancy: identifying three-dimensional (3D) objects via two-dimensional (2D) retinal images that may be altered when the same object is seen from different viewpoints1 A widely accepted class of theories holds that we first reconstruct a description of the object's 3D structure from the retinal image, then match this representation to a remembered structural description If the same structural description is reconstructed from every possible view of an object, object constancy will be obtained For example, in Biederman's2 oft-cited recognition-by-components (RBC) theory, structural descriptions are composed of sets of simple 3D volumes called geons (Fig 1), along with the spatial relations in which the geons are placed Thus a mug is represented in RBC as a noodle attached to the side of a cylinder, and a suitcase as a noodle attached to the top of a brick The attraction of geons is that, unlike more complex objects, they possess a small set of defining properties that appear in their 2D projections when viewed from almost any position (eg, all three views of the brick in Fig 1 include a straight main axis, parallel edges, and a straight cross section) According to the RBC theory, a complex object can therefore be recognized from its constituent geons, which can themselves be recognized from any viewpoint

Repression, Backfire, and The Theory of Transformative Events

Abstract: Repression sometimes can lead to greater movement mobilization: repressive events that are perceived as unjust have the potential to generate enormous public outrage against those seen as responsible. One result of repression-backfire-can contribute to the understanding of the conditions under which some repressive events may become transformative for social movements. Three case studies that highlight the processes involved in backfire are examined: the 1930 Salt March in India, in particular the beatings at Dharasana, that mobilized popular support for independence; the 1991 massacre in Dili, East Timor, which stimulated a massive expansion in international support for East Timorese independence; and the arrest of alternative cancer therapist John Richardson in 1972, which led to a huge growth in the U.S. movement for alternative therapies. The cases generate a preliminary understanding of the potential scope of backfire, the processes involved in backfire, and new hypotheses.

Strategic IT alignment: twenty-five years on

Abstract: All research streams can trace their lineage to an initial paper or series of papers The information systems (IS) field – despite its relative youthfulness – can point to examples of seminal research by Davis (1989) on technology acceptance or Brynjolfsson and Hitt (1996) on information technology (IT) payoffs as the foundation of whole new areas of research After almost a quarter century and 3200 citations (as of October 2014), many researchers would also include work by Henderson and Venkatraman (1993) – first published in the IBM Systems Journal under the heading, ‘Strategic Alignment: Leveraging Information Technology for Transforming Organizations’ – on the list of seminal and transformative IS publications