177,615 research outputs found
Decimal to Binary Number Conversion can be Fun
Numbering systems are of great importance in Computer Science and Engineering education. The binary numbering system can be considered as one of the most fundamental, since its understanding is essential for the understanding of other Computer Science and Engineering concepts, such as data representation, data storage, computer architecture, networking, and many more. Yet, students are having difficulties understanding it. One approach which has been shown to improve learning of different science and mathematics concepts is the use of educational games. Educational games have the potential to engage and motivate learners through fun activities. This paper presents a small exploratory survey on an electronic educational game for practicing decimal to binary number conversions
End-To-End Alzheimer's Disease Diagnosis and Biomarker Identification
As shown in computer vision, the power of deep learning lies in automatically
learning relevant and powerful features for any perdition task, which is made
possible through end-to-end architectures. However, deep learning approaches
applied for classifying medical images do not adhere to this architecture as
they rely on several pre- and post-processing steps. This shortcoming can be
explained by the relatively small number of available labeled subjects, the
high dimensionality of neuroimaging data, and difficulties in interpreting the
results of deep learning methods. In this paper, we propose a simple 3D
Convolutional Neural Networks and exploit its model parameters to tailor the
end-to-end architecture for the diagnosis of Alzheimer's disease (AD). Our
model can diagnose AD with an accuracy of 94.1\% on the popular ADNI dataset
using only MRI data, which outperforms the previous state-of-the-art. Based on
the learned model, we identify the disease biomarkers, the results of which
were in accordance with the literature. We further transfer the learned model
to diagnose mild cognitive impairment (MCI), the prodromal stage of AD, which
yield better results compared to other methods
Technical Drafting and Mental Visualization in Interior Architecture Education
We explored how beginning-level interior architecture students develop skills to create mental visualizations of three-dimensional objects and environments, how they develop their technical drawing skills, and whether or not physical and computer generated models aid this design process. We used interviews and observations to collect data. The findings provide an insight on what kind of difficulties students experience during their learning process and how they overcome those difficulties. The results of the study indicate that the students’ lack of skills in technical drawing and in creating 2D and 3D mental visualizations negatively influenced their design process. Using the existing body of literature, we discussed the findings and suggested teaching strategies to improve the learning process for the beginning-level interior architecture students. The findings of this study allowed us to have a better understanding of the student design and learning process
Brain Tumor Segmentation with Deep Neural Networks
In this paper, we present a fully automatic brain tumor segmentation method
based on Deep Neural Networks (DNNs). The proposed networks are tailored to
glioblastomas (both low and high grade) pictured in MR images. By their very
nature, these tumors can appear anywhere in the brain and have almost any kind
of shape, size, and contrast. These reasons motivate our exploration of a
machine learning solution that exploits a flexible, high capacity DNN while
being extremely efficient. Here, we give a description of different model
choices that we've found to be necessary for obtaining competitive performance.
We explore in particular different architectures based on Convolutional Neural
Networks (CNN), i.e. DNNs specifically adapted to image data.
We present a novel CNN architecture which differs from those traditionally
used in computer vision. Our CNN exploits both local features as well as more
global contextual features simultaneously. Also, different from most
traditional uses of CNNs, our networks use a final layer that is a
convolutional implementation of a fully connected layer which allows a 40 fold
speed up. We also describe a 2-phase training procedure that allows us to
tackle difficulties related to the imbalance of tumor labels. Finally, we
explore a cascade architecture in which the output of a basic CNN is treated as
an additional source of information for a subsequent CNN. Results reported on
the 2013 BRATS test dataset reveal that our architecture improves over the
currently published state-of-the-art while being over 30 times faster
Algorithm-Aided Design with Python: Analysis of Technological Competence of Subjects
Difficulties in learning computer programming for novices is a subject of abundant scientific literature. These difficulties seem to be accentuated in students whose academic choice is not computation, like architecture students. However, they need to study programming, since it is part of the new academic curricula. The results presented here are part of a PhD research, which investigates the achievement motivation and the acquisition and transfer of programming knowledge from an online environment designed on the basis of the 4C-ID instructional design model. These results are a sociodemographic analysis, and the technological competence of these subjects. We concluded that most of the students of our sample do not know how to auto assess their ICT expertise level, because they believed that they had sufficient computational knowledge for their needs. However, most of them told that they had difficulties creating codes. However, they recognized the importance of learning to program, thought it was valuable for architectural students, and felt motivated to acquire this new skill.info:eu-repo/semantics/publishedVersio
The Prevalence of Specific Learning Difficulties in Higher Education: A Study of UK Universities Across 12 Academic Years
Specific learning and attention difficulties are often first identified in childhood but they can cause lifelong academic and occupational challenges. We explored the prevalence of these difficulties and the representation of sex and ethnicity amongst all first-year students in UK higher education across 12 years– almost 5.7 million students –and compared course preferences and University destinations of those with and without difficulties. Students declaring learning/attention difficulties were more likely to be White or of Mixed ethnicity and least likely to be Asian. They were more likely to attend specialist HE institutions or newer universities, and more likely to study courses in creative arts and design, agriculture and architecture than law, languages, computer science and mathematical sciences. The number of students declaring difficulties has increased year on year, in actual terms and as a proportion of the student body, suggesting that efforts to increase diversity and inclusion have been successful. However, differences remain between students with and without learning/attention difficulties in terms of ethnicity, subjects studied, and HE institutions attended, so more needs to be done to identify and address reasons for this. While this paper reports data from UK students, it addresses an international question and invites similar explorations of other national datasets
Emergent requirements for supporting introductory programming
The problems associated with learning and teaching first year University Computer Science (CS1) programming classes are summarized showing that various support tools and techniques have been developed and evaluated. From this review of applicable support the paper derives ten requirements that a support tool should have in order to improve CS1 student success rate with respect to learning and understanding
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