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    Helen Hu

    ABSTRACT This tutorial will introduce participants to process-oriented guided inquiry learning (POGIL) in computer science. POGIL has been developed, and validated over the last 15 years, primarily in chemistry education. In POGIL, teams... more
    ABSTRACT This tutorial will introduce participants to process-oriented guided inquiry learning (POGIL) in computer science. POGIL has been developed, and validated over the last 15 years, primarily in chemistry education. In POGIL, teams of learners (typically 3--5) work on scripted inquiry activities and investigations designed to help them construct their own knowledge, often by modeling the original processes of discovery and research. Teams follow processes with specific roles, steps, and reports that encourage individual responsibility and meta-cognition. Multiple studies have examined the effectiveness of POGIL, and generally find that POGIL significantly improves student performance, particularly for average and below-average students.
    Real surfaces often exhibit both specular (mirror-like) and matte behavior. In many scientific fields this behavior is approximated by the "Lambertian-specular" model, where a linear combination of Lambertian and ideal specular... more
    Real surfaces often exhibit both specular (mirror-like) and matte behavior. In many scientific fields this behavior is approximated by the "Lambertian-specular" model, where a linear combination of Lambertian and ideal specular reflection is assumed. While this approximation is useful, it does not capture the dramatic surface appearance for acute and near-perpendicular viewing angles. The model presented in this paper does
    Abstract. We present several algorithms suitable for analy-sis of broadcast video. First, we show how wavelet analysis of frames of video can be used to detect transitions between shots in a video stream, thereby dividing the stream into... more
    Abstract. We present several algorithms suitable for analy-sis of broadcast video. First, we show how wavelet analysis of frames of video can be used to detect transitions between shots in a video stream, thereby dividing the stream into segments. Next we describe how each ...
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