Reliable downloading algorithms for bittorrent-like systems

In this paper we study a reliable downloading algorithm for BitTorrent-like systems, and attest it in mathematics. BitTorrent-like systems have become immensely popular peer-to-peer file distribution tools in the internet in recent years. We analyze them in theory and point out some of their limitations especially in reliability, and propose an algorithm to resolve these problems by using the redundant copies in neighbors in P2P networks and can further optimize the downloading speed in some condition. Our preliminary simulations show that the proposed reliable algorithm works well; the improved BitTorrent-like systems are very stable and reliable.<br /

Hardware/Software Co-design for Multicore Architectures

Siirretty Doriast

The tertiary education institution of the future towards 2030: scenarios for skills transformation

The research methodology used in this research was comprised of Inayatullah’s Six Pillars of Futures Studies, in which emphasis was placed on scenario planning and the creation of alternative scenarios for the tertiary education institutions in South Africa towards 2030. An environmental scan revealed the drivers of change in the education sector and in the world of work. Deepening of the future of education was done through Causal Layered Analysis (CLA) to facilitate the discerning of issues from various viewpoints in the creation and expansion of transformative stories so as to provide a window into possible futures for skills transformation. The four scenarios for the tertiary education institution of the future, namely “Stairway to Heaven”, “Highway to Hell”, “Bat out of Hell” and “Still Raining” were developed. These scenarios can be used as departure points by tertiary education providers to make strides towards the Global Sustainable Development Education 2030 targets and the attainment of South Africa’s Vision 2030 targets contained in the National Development Plan. Equally important, these scenarios make known what was previously unknown, exploring the possible and impossible, and encouraging new, innovative thinking for decision-makers. The “Stairway to Heaven” scenario supplies a future in which all stakeholders approve of and embrace the mandate of providing relevant skills and job readiness in a fast-changing world, and the benefits are maximised for all involved through co-creation. It is a scenario where industry, tertiary institutions and society have decided that the purpose of education should be lifelong learning for a viable, productive and sustainable world. The desired future of tertiary education is set against a backdrop of public and private sector collaboration, with the aim of turning the nation into an excellent hub for skills transformation. Furthermore, the scenario provides some insight on the vital measures required to embrace the innovation and the appropriate pedagogy. This research was motivated by the need to shine a light on the 21st century learner, rapidly obsoleting skills, no-collar worker, skills of the future, learning futures, and possible predictions about what new jobs may come into existence so that educationists can better prepare for the future. This research offers solutions on how institutions can prepare students for future jobs, especially considering the rapid changes in jobs and the unprecedented demise of certain jobs. The research closes a research gap through creating scenarios that offer various stakeholders in the tertiary education sector different insights and analysis into a number of interpretations of the potential paths that they can follow. The scenario application culminated in the formulation and creation of a “future vision of the tertiary education institution in South Africa towards 2030”, delivering a platform for skills transformation that will deliver adaptable workers, and sustainable and inclusive progress for all South Africans. To bring transformation into the present and design the future that embraces skills transformation, it is invaluable to interrogate the roles and choices that stakeholders of the educational sector make in determining the preferred future. The approach of this research makes it clear that, as the new world of work transpires, policymakers, students, labour, educational leaders, captains of industry and workers must proactively manage the workforce transitions. The focal issue is to discover the appropriate tools that will establish the confidence necessary to create the preferred future for skills transformation in tertiary institutions. This research has laid a platform for co-creation with various stakeholders in an effort to visualise a tertiary institution that contributes to skills development. The vision must accept that the South African jobs and skills historical profile is different from that of industrialised countries. Alternatively, the nation should respond to the double-barrelled challenge of participating in a high skills’ competitive environment on a global scale, as well as a local context that creates low-wage, blue-collar jobs to absorb the large numbers who are unemployed. The challenge is even greater for South Africa, because the economy – if highly service-oriented, with a big informal sector and a quality postgraduate education offering – is supported by a basic education system that is not producing enough critical thinkers who are equipped for university and work life. Thus, the system requires a double transformation to ensure student-centredness and meet the needs of a future worker

Intelligent Transportation Related Complex Systems and Sensors

Building around innovative services related to different modes of transport and traffic management, intelligent transport systems (ITS) are being widely adopted worldwide to improve the efficiency and safety of the transportation system. They enable users to be better informed and make safer, more coordinated, and smarter decisions on the use of transport networks. Current ITSs are complex systems, made up of several components/sub-systems characterized by time-dependent interactions among themselves. Some examples of these transportation-related complex systems include: road traffic sensors, autonomous/automated cars, smart cities, smart sensors, virtual sensors, traffic control systems, smart roads, logistics systems, smart mobility systems, and many others that are emerging from niche areas. The efficient operation of these complex systems requires: i) efficient solutions to the issues of sensors/actuators used to capture and control the physical parameters of these systems, as well as the quality of data collected from these systems; ii) tackling complexities using simulations and analytical modelling techniques; and iii) applying optimization techniques to improve the performance of these systems. It includes twenty-four papers, which cover scientific concepts, frameworks, architectures and various other ideas on analytics, trends and applications of transportation-related data

Shifting the digital skills discourse for the 4th industrial revolution

Copyright ©the Authors All rights reserved. Permission to make digital or paper copy of part or all of these works for personal or classroom use is granted without fee provided that the copies are not made or distributed for profit or commercial advantage and that copies: 1) bear this notice in full; and 2) give the full citation on the first page. It is permissible to abstract these works so long as credit is given. To copy in all other cases or to republish or to post on a server or to redistribute to lists requires specific permission and payment of a fee. Contact [email protected] to request redistribution permission.School of Computin

The 45th Australasian Universities Building Education Association Conference: Global Challenges in a Disrupted World: Smart, Sustainable and Resilient Approaches in the Built Environment, Conference Proceedings, 23 - 25 November 2022, Western Sydney University, Kingswood Campus, Sydney, Australia

This is the proceedings of the 45th Australasian Universities Building Education Association (AUBEA) conference which will be hosted by Western Sydney University in November 2022. The conference is organised by the School of Engineering, Design, and Built Environment in collaboration with the Centre for Smart Modern Construction, Western Sydney University. This year’s conference theme is “Global Challenges in a Disrupted World: Smart, Sustainable and Resilient Approaches in the Built Environment”, and expects to publish over a hundred double-blind peer review papers under the proceedings

Measuring knowledge sharing processes through social network analysis within construction organisations

The construction industry is a knowledge intensive and information dependent industry. Organisations risk losing valuable knowledge, when the employees leave them. Therefore, construction organisations need to nurture opportunities to disseminate knowledge through strengthening knowledge-sharing networks. This study aimed at evaluating the formal and informal knowledge sharing methods in social networks within Australian construction organisations and identifying how knowledge sharing could be improved. Data were collected from two estimating teams in two case studies. The collected data through semi-structured interviews were analysed using UCINET, a Social Network Analysis (SNA) tool, and SNA measures. The findings revealed that one case study consisted of influencers, while the other demonstrated an optimal knowledge sharing structure in both formal and informal knowledge sharing methods. Social networks could vary based on the organisation as well as the individuals’ behaviour. Identifying networks with specific issues and taking steps to strengthen networks will enable to achieve optimum knowledge sharing processes. This research offers knowledge sharing good practices for construction organisations to optimise their knowledge sharing processes

Electronic Evidence and Electronic Signatures

In this updated edition of the well-established practitioner text, Stephen Mason and Daniel Seng have brought together a team of experts in the field to provide an exhaustive treatment of electronic evidence and electronic signatures. This fifth edition continues to follow the tradition in English evidence text books by basing the text on the law of England and Wales, with appropriate citations of relevant case law and legislation from other jurisdictions. Stephen Mason (of the Middle Temple, Barrister) is a leading authority on electronic evidence and electronic signatures, having advised global corporations and governments on these topics. He is also the editor of International Electronic Evidence (British Institute of International and Comparative Law 2008), and he founded the innovative international open access journal Digital Evidence and Electronic Signatures Law Review in 2004. Daniel Seng (Associate Professor, National University of Singapore) is the Director of the Centre for Technology, Robotics, AI and the Law (TRAIL). He teaches and researches information technology law and evidence law. Daniel was previously a partner and head of the technology practice at Messrs Rajah & Tann. He is also an active consultant to the World Intellectual Property Organization, where he has researched, delivered papers and published monographs on copyright exceptions for academic institutions, music copyright in the Asia Pacific and the liability of Internet intermediaries

Reliability-based design optimisation methods in large scale systems

Doctor of PhilosophyStructural optimisation is an important field of applied mathematics, which has proved useful in engineering projects. Reliability-based design optimisation (RBDO) can be considered a branch of structural optimisation. Different RBDO approaches have been applied in real world problems (e.g. vehicle side impact model, short column design, etc.). Double-loop, single-loop, and decoupled approaches are three categories in RBDO. This research focuses on double-loop approaches, which consider reliability analysis problems in their inner loops and design optimisation calculations in their outer loops. In recent decades, double-loop approaches have been studied and modified in order to improve their stability and efficiency, but many shortcomings still remain, particularly regarding reliability analysis methods. This thesis will concentrate on development of new reliability analysis methods that can be applied to solve RBDO problems. As a local optimisation algorithm, the conjugate gradient method will be adopted. Furthermore, a new method will be introduced to solve a reliability analysis problem in the polar space. The reliability analysis problem must be transformed into an unconstrained optimisation problem before solving in the polar space. Two methods will be introduced here and their stability and efficiency will be compared with the existing methods via numerical experiments. Next, we consider applications of RBDO models to electricity networks. Most of the current optimisation models of these networks are categorised as deterministic design optimisation models. A probabilistic constraint is introduced in this thesis for electricity networks. For this purpose, a performance function must be defined for a network in order to define safety and failure conditions. Then, new non-deterministic design optimisation models will be formulated for electricity networks by using the mentioned probabilistic constraint. These models are designed to keep failure probability of the network below a predetermined and accepted safety level

Shortest Route at Dynamic Location with Node Combination-Dijkstra Algorithm

Abstract— Online transportation has become a basic requirement of the general public in support of all activities to go to work, school or vacation to the sights. Public transportation services compete to provide the best service so that consumers feel comfortable using the services offered, so that all activities are noticed, one of them is the search for the shortest route in picking the buyer or delivering to the destination. Node Combination method can minimize memory usage and this methode is more optimal when compared to A* and Ant Colony in the shortest route search like Dijkstra algorithm, but can’t store the history node that has been passed. Therefore, using node combination algorithm is very good in searching the shortest distance is not the shortest route. This paper is structured to modify the node combination algorithm to solve the problem of finding the shortest route at the dynamic location obtained from the transport fleet by displaying the nodes that have the shortest distance and will be implemented in the geographic information system in the form of map to facilitate the use of the system. Keywords— Shortest Path, Algorithm Dijkstra, Node Combination, Dynamic Location (key words