Thirty Years of Machine Learning: The Road to Pareto-Optimal Wireless Networks

Future wireless networks have a substantial potential in terms of supporting a broad range of complex compelling applications both in military and civilian fields, where the users are able to enjoy high-rate, low-latency, low-cost and reliable information services. Achieving this ambitious goal requires new radio techniques for adaptive learning and intelligent decision making because of the complex heterogeneous nature of the network structures and wireless services. Machine learning (ML) algorithms have great success in supporting big data analytics, efficient parameter estimation and interactive decision making. Hence, in this article, we review the thirty-year history of ML by elaborating on supervised learning, unsupervised learning, reinforcement learning and deep learning. Furthermore, we investigate their employment in the compelling applications of wireless networks, including heterogeneous networks (HetNets), cognitive radios (CR), Internet of things (IoT), machine to machine networks (M2M), and so on. This article aims for assisting the readers in clarifying the motivation and methodology of the various ML algorithms, so as to invoke them for hitherto unexplored services as well as scenarios of future wireless networks.Comment: 46 pages, 22 fig

Chinese International Students\u27 Informal Second Language (L2) Learning Through Technology for Enhancing Lived Experiences in Canada

An increasing amount of attention has been drawn to international students’ academic development in the context of studying abroad; however, few studies shed light on students’ studying and lived experiences outside of school. This thesis explores how technology can enhance Chinese international students’ informal acquisition of second language (L2) and their lived experiences in Canada. Through a qualitative case study, I describe what language difficulties newly arrived Chinese international students encounter, and how they cope with those language difficulties through technology-assisted informal L2 learning. Data sources include in-depth interviews and follow-up interviews, participants’ personal narratives, and researchers’ reflective journals. Theories of multiliteracies, basic interpersonal communicative skills and cognitive academic language proficiency distinction, as well as a communicative competence framework have been adopted as the theoretical frameworks for data analysis. The findings show that newly arrived Chinese international students’ major language difficulties includes lack of non-academic vocabulary, lack of understanding of sociocultural differences, and unfamiliarity with informal context embedded phrases. To overcome these language difficulties, they creatively design informal L2 learning experiences through the combinational use of technology tools. The results have significant implications for newly arrived Chinese international students’ informal L2 learning

Beyond Green: The Arts as a Catalyst for Sustainability

The creative sector has played a significant role in efforts to raise awareness of the impacts of climate change and encourage sustainable social, economic, and environmental practices worldwide. Many artists and cultural organizations have embarked on remarkable projects that make us reflect on our behaviors, our carbon footprints, and the claims of infinite growth based on finite resources. Sometimes treading a fine line between arts and advocacy, they have sparked extraordinary collaborations that reveal new ways of living together on a shared planet. The 'art of the possible' will become even more relevant as 2016 dawns - bringing the challenge of how to implement the Sustainable Development Goals and the Climate Change Agreement adopted at the end of 2015. Yet with negotiations overshadowed by scientific controversy, political polemic and geographic polarization, individuals can easily lose faith in their own ability to shape change beyond the hyperlocal level. Against this challenging backdrop, could the arts and creative practice become a particle accelerator - to shift mindsets, embrace new ways of sharing space and resources, and catalyze more creative leadership in the public and private spheres? The goal of this Salzburg Global Seminar session was to build on path-breaking cultural initiatives to advance international and cross-sectoral links between existing arts and sustainability activities around the world, encourage bolder awareness-raising efforts, and recommend strategic approaches for making innovative grassroots to scale for greater, longer-term impact