In this study, an oscillator-type gait controller for a quadruped robot with antagonistic pairs of pneumatic actuators is proposed. And by using the controller, a feasibility study on the stability of gait patterns with changeable body stiffness is reported. The periodic motions of the legs are generated and controlled by an oscillator network with state resetting. This type of controller has r...

This paper presents the design of a new interface for interactive Topic Detection and Tracking (TDT) called Ievent. It is composed of 3 main views; a Cluster View, a Document View, and a Named Entity View, supporting the user in identifying new events and tracking them in a news stream. The interface has also been designed to test the usefulness in interactive TDT of named entity recognition. W...

Age structure data is essential for single species stock assessments but length-frequency data can provide complementary information. In south-western Australia, the majority of these data for exploited species are derived from line caught fish. However, baited remote underwater stereo-video systems (stereo-BRUVS) surveys have also been found to provide accurate length measurements. Given that ...

What visual program abstractions support program-ming? We explore this question for object-oriented programming with reference to programming tasks such as modiication engineering and program development. We present ten related abstractions (views) of a program using visual constructs based on empirical and observational studies. We explain the dynamic and interactive nature of the views and su...

This article presents an analysis of Brazilian research on High Energy Physics (HEP) indexed by Web of Science (WoS) from 1983 to 2013. Scientometric indicators for output, collaboration and impact were used to characterize the field under study. The results show that the Brazilian articles account for 3% of total HEP research worldwide and that the sharp rise in the scientific activity between...