1722 research outputs found
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Automated LULC Map Production using Deep Neural Networks
Get PDFPreprint version.This article presents an approach to automating the creation of land-use/land-cover classification (LULC) maps from satellite images using deep neural networks that were developed to perform semantic segmentation of natural images. This work is important since the production of accurate and timely LULC maps is becoming essential to government and private companies that rely on them for large-scale monitoring of land resource changes. In this work, deep neural networks are trained to classify each pixel of a satellite image into one of a number of LULC classes. The presented deep neural networks are all pre-trained using the ImageNet Large-Scale Visual Recognition Competition (ILSVRC) datasets and then fine-tuned using approximately 19,000 Landsat 5/7 satellite images of resolution 224×224 taken of the Province of Manitoba in Canada. The result is an automated solution that can produce LULC maps images significantly faster than current semi-automated methods. The contributions of this article are the observation that deep neural networks developed for semantic segmentation can be used to automate the task of producing LULC maps; the use of these networks to produce LULC maps; and a comparison of several popular semantic segmentation architectures for solving the problem of automated LULC map production."This work was funded by a research contract with GeoManitoba, which is a department
in the Manitoba provincial government. This work was dependent on the generous support
and cooperation of GeoManitoba, including contributions by Greg Carlson, Jason
Hancheruk, and Gerry Lux. Similarly, the work would not have been possible without
help and support of the University of Winnipeg Research Office and Dr. Jino Distasio,
as well as the in-kind contribution to the GeoManitoba research contract by the
University of Winnipeg Research Office. Finally, Muthu Palaniappan and Mallikarjun
Swamy participated in this work through the Mitacs Globalink Internship program."https://www.tandfonline.com/doi/abs/10.1080/01431161.2018.1563840Preprin
Millennium For All Alternative Report on Public Library Security
No full textIn response to the airport-style security measures implemented at the downtown Millennium Branch of the Winnipeg Public Library, concerned library users, academics, and library workers came together to prepare a report assessing the negative impact of the measures as well as to explore alternatives. Focusing on how securitization disproportionately affects already marginalized communities and is part of a larger trend of social exclusion in Winnipeg's public spaces, the report also covers existing community-led alternatives in Canadian libraries.https://osf.io/preprints/lissa/vfu6h
An inquiry into the pedagogical practices of high school social studies teachers: Imagining and re-imagining becoming a teacher
Get PDFOn three days in 2017-18 two university professor-researchers gathered with three high school teachers to talk about the experience of teaching social studies and about the insights, questions, and wonderments therefrom derived. The intent was to research the life and work of social studies teachers. The gatherings were funded by the Brandon school division (Brandon is a small city in the southwestern Manitoba (Canada). The research was conducted under the auspices of the Manitoba Education Research Network (MERN) with support from Manitoba Education and Training (MET). The underlying premise was that teachers, through their lived experience in the classroom and beyond, were able to access understandings unique to teaching and learning. This article chronicles, in part, what one teacher revealed about his conception of being a social studies teacher and his teaching experience and how, thereby, the understanding of social studies teaching is increased and provides a signal as regards what it might be to be a social studies teacher
Liberating Knowledge at the Margins: Towards a Discursive-Transactional Research Paradigm in LIS
Get PDFThis paper proposes an LIS research paradigm by which the transactional relationships between knowledge organization systems (KOS) and external scholarly discourses may be identified and examined. It considers subject headings as discursive acts (or Foucauldian “statements”) unto themselves—in terms of their materiality, rarity, exteriority, and accumulation—arising from such discourses, and which, through their usage in library catalogues and databases, produce their own discursive and non-discursive effects. It is argued that, since these statements lead through their existence and discovery (or absence and neglect) to the creation of further texts, then potentially oppressive discursive formations may result where marginalized knowledges are concerned. The paper aims to better understand these processes in scholarly discourses—and the role of libraries therein—by examining recent examples in the LIS literature regarding matters of race and gender, and which are suggestive of this emergent paradigm.https://cjal.ca/index.php/capal/article/view/2990
Localized Approaches to Ending Homelessness: Indigenizing Housing First.
Get PDFThis project is guided by three research objectives. The first objective is to document and analyze emergent practices in Localizing Housing First, both across Canada and internationally. The second objective is to build on case studies and an environmental scan of HF program adaptations to develop a coherent strategy for locally adapting HF, specifically for Indigenous populations. The third objective is to develop Guidelines for Localizing Housing First for use in other jurisdictions, providing guidelines and clear examples
Altered expression of cell adhesion genes and hybrid male sterility between subspecies of Drosophila pseudoobscura
No full textDrosophila pseudoobscura pseudoobscura and Drosophila pseudoobscura bogotana are two closely related sub-species with incomplete reproductive isolation. A genome-wide comparison of expression in hybrids relative to parental subspecies has been previously used to identify genes with significant changes in expression uniquely associated with the sterile condition. The misexpression (i.e., gene expression beyond levels found in parentals) of such genes could be directly linked to the onset of sterility or could alternatively be caused by incompatibilities in a hybrid genome without a direct link to sterility. Cell adhesion was previously found to be one of the largest gene ontologies with changes in expression linked to sterility. Here we used gene expression assays in fertile backcross male progeny, along with introgression progeny in which we swap a major hybrid male sterility (HMS) allele, to generate fertile and sterile males genotypically similar to F1 sterile hybrids. We identify a cell adhesion gene (GA10921) whose change in expression is directly linked to sterility and modulated by a previously characterized HMS protein. GA10921 adds to our rather limited knowledge of changes in gene expression associated with HMS, and to the identification of gene interacting partners linked to HMS.This work was funded by an NSERC Discovery Grant to A. Civetta. D. Alhazmi was funded by a graduate scholarship from the Government of Saudi Arabia.https://cdnsciencepub.com/doi/10.1139/gen-2019-006
Library Anxiety and Institutional Literacy: Addressing Potential Barriers to Information Literacy
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