Machine learning methods for sign language recognition: a critical review and analysis.

Sign language is an essential tool to bridge the communication gap between normal and hearing-impaired people. However, the diversity of over 7000 present-day sign languages with variability in motion position, hand shape, and position of body parts making automatic sign language recognition (ASLR) a complex system. In order to overcome such complexity, researchers are investigating better ways of developing ASLR systems to seek intelligent solutions and have demonstrated remarkable success. This paper aims to analyse the research published on intelligent systems in sign language recognition over the past two decades. A total of 649 publications related to decision support and intelligent systems on sign language recognition (SLR) are extracted from the Scopus database and analysed. The extracted publications are analysed using bibliometric VOSViewer software to (1) obtain the publications temporal and regional distributions, (2) create the cooperation networks between affiliations and authors and identify productive institutions in this context. Moreover, reviews of techniques for vision-based sign language recognition are presented. Various features extraction and classification techniques used in SLR to achieve good results are discussed. The literature review presented in this paper shows the importance of incorporating intelligent solutions into the sign language recognition systems and reveals that perfect intelligent systems for sign language recognition are still an open problem. Overall, it is expected that this study will facilitate knowledge accumulation and creation of intelligent-based SLR and provide readers, researchers, and practitioners a roadmap to guide future direction

A survey on the (in)security of trusted execution environments

As the number of security and privacy attacks continue to grow around the world, there is an ever increasing need to protect our personal devices. As a matter of fact, more and more manufactures are relying on Trusted Execution Environments (TEEs) to shield their devices. In particular, ARM TrustZone (TZ) is being widely used in numerous embedded devices, especially smartphones, and this technology is the basis for secure solutions both in industry and academia. However, as shown in this paper, TEE is not bullet-proof and it has been successfully attacked numerous times and in very different ways. To raise awareness among potential stakeholders interested in this technology, this paper provides an extensive analysis and categorization of existing vulnerabilities in TEEs and highlights the design flaws that led to them. The presented vulnerabilities, which are not only extracted from existing literature but also from publicly available exploits and databases, are accompanied by some effective countermeasures to reduce the likelihood of new attacks. The paper ends with some appealing challenges and open issues.Funding for open access charge: Universidad de Málaga / CBUA This work has been partially supported by the Spanish Ministry of Science and Innovation through the SecureEDGE project (PID2019-110565RB-I00), and by the by the Andalusian FEDER 2014–2020 Program through the SAVE project (PY18-3724)

School Participatory Budgeting and Student Voice

abstract: One of the ideals underpinning public education in the United has been that of educating young people to become engaged democratic citizens. Civics courses have been the main, and sometimes only, sign of public schools attending to their civic mission. An opportunity to offer citizenship education through the experience of democratic governance manifests itself through the implementation of school participatory budgeting. Though promising, the use of school participatory budgeting in the United States is relatively new. The literature is sparse and issues of process design as well as research methodology remain unexplored. School participatory budgeting has the potential, at least, to offer students an opportunity to experience deliberative democratic decision-making and thus enhance those capabilities critical for effective citizenship. More ambitiously, school participatory budgeting presents an opportunity to delicately and steadily transform school governance to give real decision-making power to students. The four stand-alone articles that make up this dissertation are four facets of a single case study on the first large-scale instance of school participatory budgeting in the United States. They began with the question: What were the accomplishments and challenges of school participatory budgeting in a large secondary school district in the Southwestern United States in its initial implementation? This question was interpreted and answered differently in each article. The first article examines aspects of process design and how participatory budgeting might contribute not only to citizenship learning but also the expansion of student voice. The experiences of students, in the second article, and those of teachers and administrators, in the third article, are explored through analysis of interview data. The final article addresses this question by drawing on my own experience of implementing school participatory budgeting using analytic autoethnography. This dissertation presents school participatory budgeting from multiple perspectives and recommends more empirical research on the structure of the process before, during, and after implementation. This dissertation examines this approach to citizenship learning dynamically by using various methodologies and bringing together the literature on student voice, citizenship learning, participatory budgeting, and curriculum studies in order to enrich the discussions and provide actionable knowledge for advocates and practitioners.Dissertation/ThesisDoctoral Dissertation Curriculum and Instruction 201

Wissensgemeinschaften 2015: 18. GeNeMe-Workshop, TU Dresden, 25./26.06.2015: GeNeMe 2015, Gemeinschaften in Neuen Medien

Unter dem gemeinsamen Dach „Wissensgemeinschaften“ werden nun zwei Tagungen mit sich gegenseitig ergänzenden thematischen Schwerpunkten zusammengebracht, die Lern- und Wissensprozesse im Spannungsfeld zwischen Organisation, Technologie und (Unternehmens-)Kultur verhandeln. Während die Konferenz „Gemeinschaften in neuen Medien (GeNeMe)“ organisationale und technische Perspektiven im Kontext von Virtual Enterprises, Communities & Social Networks thematisiert, liefert die zweijährlich stattfindende Konferenz „Professionelles Wissensmanagement (ProWM)“ der Fachgruppe Wissensmanagement in der Gesellschaft für Informatik (fgwm) einen breiten integrativen Überblick über die organisatorischen, kulturellen, sozialen und technischen Aspekte des Wissensmanagements.:1 Vorwort: Wissensgemeinschaften in Wirtschaft und Wissenschaft XII 2 Preface: Knowledge Communities in Busuness and Schience XVII Keynotes – eingeladene Vorträge 1 Knowledge Management – Advancements and Future Research Needs – Results from the Global Knowledge Research Network study 1 2 Leeds University Business School, Leeds, UK, 2 Beginnt die neue Arbeitswelt mit einer Abwesenheitsnotiz? 13 Hochschuldidaktik 2.0 1 Vernetztes Lernen an der Hochschule? Ergebnisse und Erfahrungen eines cMOOS 17 2 Smart communities in virtual reality. A comparison of design approaches for academic education 25 3 Flipped Classroom in der Hochschullehre der TU Dresden – Ein Work in Progress-Bericht 39 4 Konzepte für den Einsatz von E-Tutoren in komplexen E-Learning-Szenarien – Ein Erfahrungsbericht 45 Wissensmanagement I 1 Barrieren im interorganisationalen Wissensaustausch auf individueller Ebene – Ordnungsrahmen und Analysemethoden 55 2 GIS-based sales support by company knowledge reuse in the telecommunications sector 67 3 Praktische Entwicklung einer wissensorientierten Unternehmenskultur. Entwurf einer Zertifizierungsmethode 75 4 Supporting Knowledge Management Instruments with Composable Micro-Services 81 Communities 1 MeetingMirror – Unterstützung von Wissenschaftler-Communities auf Konferenzen 91 2 The SIFA community as a virtual learning space in OSH 101 3 Reflexion, Begleitung, Austausch – Die Online-Plattform StudentBodies-AN zur Prävention von Magersucht 107 Technologien, Methoden, Systeme 1 Gamification in der Hochschullehre. Herleitung von Handlungsempfehlungen für den Einsatz von Gamedesign-Elementen in der sächsischen Lernplattform OPAL 115 2 Gebrauchstauglichkeit und Nützlichkeit. Usability und wahrgenommener Nutzen digitaler Lernangebote S. 125 3 Barrierefreiheit im MOOC 135 4 Strukturierte Wikis – Konzept und Anwendungsbeispiel 141 Feedback, Austausch, Ideenfindung 1 Idea-Space: A Use Case of Collaborative Course Development in Higher Education 149 2 Onlinegestützte Audience Response Systeme: Förderung der kognitiven Aktivierung in Vorlesungen und Eröffnung neuer Evaluationsperspektiven 157 3 Mobiles Feedback – Praxisbericht zur Integration eines Audience Response Systems in eine Lehrveranstaltung als Instrument der Lehrevaluation 67 4 Jazz in der Stadt und Rock auf der Autobahn - von der kollaborativen zur kollaborativ-kontextorientierten Musikempfehlung 173 Education 1 Wissens- und Nachhaltigkeitsmanagement durch Kooperationen in Weiterbildungsprojekten 185 2 Lernen aus Erfahrung – vom agilen zum verteilten Präsenzteam 193 3 Development of an E-Learning instructional model for vocational training in Indonesia 203 4 A Survey of Teachers’ Media Literacy in Chinese Vocational Schools 209 Prozess 1 Welche Use Cases eignen sich für die Umsetzung in einem Enterprise Social Network? Eine Fallstudie bei der N-ERGIE Aktiengesellschaft 225 2 Kontextbezogene, workflowbasierte Assessmentverfahren auf der Grundlage semantischer Wissensbasen 237 3 Collaborative Knowledge Acquisition and Explorationin Technology Search 243 Wissensmanagement II 1 Assessing Informal Social Learning at the Workplace – A Revalidation Case from Healthcare 251 2 Wie Barrieren im Wissenstransfer überwunden werden können – Ergebnisse einer Studie zur Grundhaltung des Misstrauens oder Vertrauens 267 3 Integration von Topic Models und Netzwerkanalyse bei der Bestimmung des Kundenwertes 277 4 Wissensmanagement im Kontext öffentlich-rechtlicher Rahmenbedingungen: Praktische Erfahrungen aus einem Wasserverband 285 Adress- und Autorenverzeichnis 29

Assessing the Effects of Multiple Stressors on Aquatic Systems across Temporal and Spatial Scales: From Measurement to Management

This book is focused on the interplay of multiple stressors in aquatic systems and its consequences for management across spatial and temporal scales. It is organized into six case studies from four continents (Europe, Oceania, Africa, and North America), each based on several different data sources (field and experimental data, historical data, literature reviews, inquiries, and expert knowledge). The case studies address the joint effects of a variety of stressors (physical and chemical barriers, hydromorphology, temperature, drought, and water quality) on a diversity of biological response indicators (fish, macroinvertebrates, and phytoplankton) and discuss the main implications for managing aquatic ecosystems more effectively

Google Glass App for Displaying ASL Videos for Deaf Children – The Preliminary Race

Glass Vision 3D is a grant-funded project focused on the goal of developing and researching the feasibility & usability of a Google Glass app that will allow young Deaf children to look at an object in the classroom and see an augmented reality projection that displays an American Sign Language (ASL) related video. Session will show the system (Glass app) that was developed and summarize feedback gathered during focus-group testing of the prototype

Towards Evidence-Informed Agriculture Policy Making: Investigating the Knowledge Translation Practices of Researchers in the National Agriculture Research Institutes in Nigeria

This study investigated the knowledge translation practices of researchers in the National Agriculture Research Institutes of Nigeria and the utilization of research knowledge by policy actors in the Federal Ministry of Agriculture and Rural Development in Nigeria. Data for the study was obtained from agriculture researchers and the policy actors through questionnaires and interviews. In addition, bibliometric and content analysis were carried out on documents from the research institutes and the Federal Ministry of Agriculture and Rural Development to gauge the transfer and use of knowledge by the researchers and policy actors respectively. Out of about six hundred questionnaires that were distributed to the researchers in fifteen agricultural research institutes, four hundred and forty-eight usable questionnaires were analysed. Twenty-two researchers were interviewed about their knowledge translation practices and fourteen senior members of the Federal Ministry of Agriculture and Rural Development were interviewed regarding their use of research knowledge generated at the agriculture research institutes. Majority of the agriculture researchers reported that they occasionally carried out knowledge translation activities targeted at policy actors in the Federal Ministry of Agriculture and Rural Development, with the most common knowledge translation method being the sending of annual reports to the ministry. However, the policy actors hardly made use of such reports in policy making either due to lack of emphasis on the part of the researchers on policy implications of their research or non-relevance of the research to policy making. Similarly, content analysis of the ministry’s documents showed that policy actors rarely made references to findings from the agriculture research institutes. Interestingly, journal articles from two of the research institutes seemed to have received a lot of citations from other authors affiliated with educational institutions in Nigeria. The most prominent barrier for knowledge translation noted by researchers was the high cost of translating research knowledge. Hence, this study recommends: provision of adequate budget, incentives and time to Nigerian agriculture researchers to enable them to do KT; and capacity building training / workshops for both researchers and policy actors to boost knowledge translation for agriculture policy making in Nigeria

Google Glass App for Displaying ASL Videos for Deaf Children – The Preliminary Race

Glass Vision 3D is a grant-funded project focused on the goal of developing and researching the feasibility & usability of a Google Glass app that will allow young Deaf children to look at an object in the classroom and see an augmented reality projection that displays an American Sign Language (ASL) related video. Session will show the system (Glass app) that was developed and summarize feedback gathered during focus-group testing of the prototype

CercleS 2022

CHAIRPERSON Manuel Moreira da Silva, Instituto Politécnico do Porto, Portugal EDITORS Ana Gonçalves, Estoril Higher Institute for Tourism and Hotel Studies, Portugal Célia Tavares, Instituto Politécnico do Porto, Portugal Joaquim Guerra, Universidade do Algarve, Portugal Luciana Oliveira, Instituto Politécnico do Porto, Portugal Manuel Moreira da Silva, Instituto Politécnico do Porto, Portugal Ricardo Soares, Instituto Politécnico do Porto, PortugalCercleS 2022 The Future of Language Education in an Increasingly Digital World: Embracing ChangeN/