4 research outputs found
Hidden walls: STEM course barriers identified by students with disabilities
Historically, non-disabled individuals have viewed disability as a personal
deficit requiring change to the disabled individual. However, models have
emerged from disability activists and disabled intellectuals that emphasize the
role of disabling social structures in preventing or hindering equal access
across the ability continuum. We used the social relational proposition, which
situates disability within the interaction of impairments and particular social
structures, to identify disabling structures in introductory STEM courses. We
conducted interviews with nine students who identified with a range of
impairments about their experiences in introductory STEM courses. We assembled
a diverse research team and analyzed the interviews through phenomenological
analysis. Participants reported course barriers that prevented effective
engagement with course content. These barriers resulted in challenges with time
management as well as feelings of stress and anxiety. We discuss
recommendations for supporting students to more effectively engage with
introductory STEM courses
p-leader based classification of first stage intrapartum fetal HRV
International audienceInterpretation and analysis of intrapartum fetal heart rate, enabling early detection of fetal acidosis, remains a challenging signal processing task. Recently, a variant of the wavelet-based multifractal analysis, based on p-exponents and p-leaders, which provides a rich framework for data regularity analysis, has been proposed. The present contribution aims at studying the benefits of using the p-leader multifractal formalism for discrimination of intrapartum fetal heart rate. First, a dependence on p of the multifractal properties of data is evidenced and interpreted. Second, classification between healthy subjects and fetuses suffering from acidosis is shown to have satisfactory performance that increases when p is decreased
p-leader Multifractal Analysis and Sparse SVM for Intrapartum Fetal Acidosis Detection
International audienceInterpretation and analysis of intrapartum fetal heart rate, enabling early detection of fetal acidosis, remains a challenging signal processing task. Among the many strategies that were used to tackle this problem, scale-invariance and multifractal analysis stand out. Recently, a new and promising variant of multifractal analysis, based on p-leaders, has been proposed. In this contribution, we use sparse support vector machines applied to p-leader multifractal features with a double aim: Assessment of the features actually contributing to classification; Assessment of the contribution of non linear features (as opposed to linear ones) to classification performance. We observe and interpret that the classification rate improves when small values of the tunable parameter p are used