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Articles 1 - 19 of 19
Full-Text Articles in Engineering
Supply Chain Downstream Strategic Cost Evaluation Using L-Copras Method In Cross-Border E-Commerce, Lipeng Feng, Jun Ma, Yong Wang, Jie Yang
Supply Chain Downstream Strategic Cost Evaluation Using L-Copras Method In Cross-Border E-Commerce, Lipeng Feng, Jun Ma, Yong Wang, Jie Yang
SMART Infrastructure Facility - Papers
Cross-border E-commerce has grown exponentially in the past decade in global market. To gain global competition in product-convergent markets, China¿s over 200 thousands cross-border E-commerce businesses have focused more on the service and cost control of supply chain downstream. In this study, we analyse three strategic cost control measures, summarise ten evaluation criteria for cost and develop an evaluation method for cost control using an extended COmplex PRoportion ASsessment (COPRAS) method, named L-COPRAS. This method is proposed to deal with uncertain or linguistic expression on strategic cost measures with varied weights to different alternatives. A case study of helping a …
Cyber Security Incidents On Critical Infrastructure And Industrial Networks, Robert Ighodaro Ogie
Cyber Security Incidents On Critical Infrastructure And Industrial Networks, Robert Ighodaro Ogie
SMART Infrastructure Facility - Papers
National critical infrastructure and industrial processes are heavily reliant on automation, monitoring and control technologies, including the widely used Supervisory Control and Data Acquisition (SCADA) systems. The growing interconnection of these systems with corporate networks exposes them to cyber attacks, with several security incidents reported over the last few decades. This study provides a classification scheme for categorising security incidents related to critical infrastructure and industrial control systems. The classification scheme is applied to analyse 242 security incidents on critical infrastructure and industrial control networks, which were reported between 1982 and 2014. The results show interesting patterns, with key points …
Data Mining In Educational Technology Classroom Research: Can It Make A Contribution?, Charoula Angeli, Sarah Katherine Howard, Jun Ma, Jie Yang, Paul A. Kirschner
Data Mining In Educational Technology Classroom Research: Can It Make A Contribution?, Charoula Angeli, Sarah Katherine Howard, Jun Ma, Jie Yang, Paul A. Kirschner
SMART Infrastructure Facility - Papers
The paper addresses and explains some of the key questions about the use of data mining in educational technology classroom research. Two examples of use of data mining techniques, namely, association rules mining and fuzzy representations are presented, from a study conducted in Europe and another in Australia. Both of these studies examine student learning, behaviors, and experiences within computer-supported classroom activities. In the first study, the technique of association rules mining was used to understand better how learners with different cognitive types interacted with a simulation to solve a problem. Association rules mining was found to be a useful …
An Adaptive Agent-Based Approach To Traffic Simulation, Johan Barthelemy, Timoteo Carletti
An Adaptive Agent-Based Approach To Traffic Simulation, Johan Barthelemy, Timoteo Carletti
SMART Infrastructure Facility - Papers
The aim of this work is to present the initial exploration of a behavioural Dynamic Traffic Assignment model, particularly suitable to be used and implemented in agent-based micro-simulations. The proposal relies on the assumption that travellers take routing policies rather than paths, leading us to introduce the possibility for each simulated agent to apply, in real time, a strategy allowing him to possibly re-route his path depending on the perceived local traffic conditions, jam and/or time spent. The re-routing process allows the agents to directly react to any change in the road network. For the sake of simplicity, the agents' …
A Dynamic Behavioural Traffic Assignment Model With Strategic Agents, Johan Barthelemy, Timoteo Carletti
A Dynamic Behavioural Traffic Assignment Model With Strategic Agents, Johan Barthelemy, Timoteo Carletti
SMART Infrastructure Facility - Papers
Foresee traffic conditions and demand is a major issue nowadays that is very often approached using simulation tools. The aim of this work is to propose an innovative strategy to tackle such problem, relying on the presentation and analysis of a behavioural dynamic traffic assignment. The proposal relies on the assumption that travellers take routing policies rather than paths, leading us to introduce the possibility for each simulated agent to apply, in real time, a strategy allowing him to possibly re-route his path depending on the perceived local traffic conditions, jam and/or time already spent in his journey. The re-routing …
Examining The Effects Of Transport Policy On Modal Shift From Private Car To Public Bus, Ahm Mehbub Anwar, Jie Yang
Examining The Effects Of Transport Policy On Modal Shift From Private Car To Public Bus, Ahm Mehbub Anwar, Jie Yang
SMART Infrastructure Facility - Papers
Private vehicles have become the most common mode of daily travel. This is one effect of the poor accessibility of public transportation. This paper attempts to use a study based on a survey of commuters in order to devise ways of encouraging the use of public transportation. Two different public transport policies were examined: (i) once-an-hour direct bus service from home to university (policy 1), and (ii) park-and-ride facilities (policy 2). Binary logistics models are proposed with the intention of comparing the utility of travel modes between private cars and public buses. These models are also used to identify the …
Using Complex Fuzzy Sets For Strategic Cost Evaluation In Supply Chain Downstream, Jun Ma, Lipeng Feng, Jie Yang
Using Complex Fuzzy Sets For Strategic Cost Evaluation In Supply Chain Downstream, Jun Ma, Lipeng Feng, Jie Yang
SMART Infrastructure Facility - Papers
Cross-border E-commerce has grown exponentially in the past decade. To gain global competitivity in product-convergent markets, China's over 200 thousands cross-border E-commerce businesses have focused more on the service and cost of supply chain downstream. Therefore, selecting appropriate cost control strategy has marked impact on them. In this study, we evaluated three strategic cost control measures according to 10 evaluation criteria by using a complex fuzzy set based model, named C-COPRAS. The C-COPRAS model is an extension of the COmplex PRoportion ASessment (COPRAS) method. This model uses complex fuzzy set to tackle uncertainty and temporal features in given evaluation context. …
Impact Of Next Generation Infrastructure On Australian Cities, Joseph J. Branigan, Fariba Ramezani Khansari
Impact Of Next Generation Infrastructure On Australian Cities, Joseph J. Branigan, Fariba Ramezani Khansari
SMART Infrastructure Facility - Papers
The quality of the physical infrastructure in our major cities is just as critical as human capital development in terms of driving long-run growth in productivity and rising living standards. The provision of high-quality and reliable infrastructure network services (like roads, rail and telecommunications) can have significant social, environmental and economic payoffs. Notwithstanding the obvious intuitive connection between infrastructure investment and economic growth, the link between the two is still debated. One reason is that not all infrastructure investment supports growth over the long-term. Building a road or rail line that is not used for instance lowers productivity and economic …
Assessing Infrastructure System Of Systems Integrity, Ricardo Peculis, Farid Shirvani, Pascal Perez
Assessing Infrastructure System Of Systems Integrity, Ricardo Peculis, Farid Shirvani, Pascal Perez
SMART Infrastructure Facility - Papers
Infrastructure refers to the fundamental facilities and systems serving a country, city, or area, including the services and facilities necessary for its economy to function. Infrastructure systems typically consist of interrelated constituent systems forming what is known as system of systems (SoS). Infrastructure systems present numerous challenges throughout their lifecycles. This paper addresses one of these challenges that is presented during operation, when managers need to report 'how well' the system is performing and finding ways to address the consequences of unexpected events that often degrade the intended performance. This state of system 'wellbeing' will be referred as system integrity …
Lifelong Machine Learning With Adaptive Multi-Agent Systems, Nicolas R. Verstaevel, Jeremy Boes, Julien Nigon, Dorian D'Amico, Marie-Pierre Gleizes
Lifelong Machine Learning With Adaptive Multi-Agent Systems, Nicolas R. Verstaevel, Jeremy Boes, Julien Nigon, Dorian D'Amico, Marie-Pierre Gleizes
SMART Infrastructure Facility - Papers
Sensors and actuators are progressively invading our everyday life as well as industrial processes. They form complex and pervasive systems usually called "ambient systems" or "cyber-physical systems". These systems are supposed to efficiently perform various and dynamic tasks in an ever-changing environment. They need to be able to learn and to self-adapt throughout their life, because designers cannot specify a priori all the interactions and situations they will face. These are strong requirements that push the need for lifelong machine learning, where devices can learn models and behaviours during their whole lifetime and are able to transfer them to perform …
Coping With Social Complexity Of Infrastructure Projects, Ricardo Peculis
Coping With Social Complexity Of Infrastructure Projects, Ricardo Peculis
SMART Infrastructure Facility - Papers
Infrastructure projects are complex and technical complexity is dwarfed when compared with the social complexity caused by the interaction of individuals and organisations that participate and influence these projects. During conception and planning, uncertainty and conflicting motivations influence decisions that drive the solution and plans that are carried out during construction, operation and finally disposal of the system. If the need is not accurately conveyed and the solution is not properly defined, estimated and planned, infrastructure projects become subject of costs overrun and schedule delays of serious consequences, including the possibility that they may not satisfy the real need. Understanding …
Investigating The Accuracy Of Georeferenced Social Media Data For Flood Mapping: The Petajakarta.Org Case Study, Robert Ighodaro Ogie, Hugh I. Forehead
Investigating The Accuracy Of Georeferenced Social Media Data For Flood Mapping: The Petajakarta.Org Case Study, Robert Ighodaro Ogie, Hugh I. Forehead
SMART Infrastructure Facility - Papers
Georeferenced social media data are gaining increased application in creating near real-time flood maps needed to improve situational awareness in data-starved regions. However, there is growing concern that the georeferenced locations of flood-related social media contents do not always correspond to the actual locations of the flooding event. But to what extent is this true? Without this knowledge, it is difficult to ascertain the accuracy of flood maps created using georeferenced social media contents. This study aims to improve understanding of the extent to which georeferenced locations of social media flood reports deviate from the actual locations of floods. The …
Infrastructure System Of Systems Integrity, Ricardo Peculis, Farid Shirvani
Infrastructure System Of Systems Integrity, Ricardo Peculis, Farid Shirvani
SMART Infrastructure Facility - Papers
Infrastructure systems typically consist of technical structures comprising of physical and operational components of interrelated constituent systems forming what is now known as system of systems (SOS). The complexity and uncertainty of unforeseen events that are inherent characteristic of infrastructure systems makes it impossible to predict undesirable emergent behaviours that could push the operation of such systems away from their intended purposes. Infrastructure systems present numerous challenges throughout their lifecycles. This paper addresses one of these challenges that is presented during operation, when managers need to report 'how well' the system is performing and find ways to address the consequences …
Upgrading Rail Connectivity Between Illawarra And Sydney, Joseph J. Branigan, Fariba Ramezani Khansari
Upgrading Rail Connectivity Between Illawarra And Sydney, Joseph J. Branigan, Fariba Ramezani Khansari
SMART Infrastructure Facility - Papers
The Illawarra Business Chamber (Illawarra First) commissioned the SMART Infrastructure Facility UOW (SMART) to investigate options to improve the speed and reliability of passenger and freight rail transport services between the Illawarra and Sydney.
Smart Is A Matter Of Context, Julien Nigon, Nicolas R. Verstaevel, Jeremy Boes, Frederic Migeon, Marie-Pierre Gleizes
Smart Is A Matter Of Context, Julien Nigon, Nicolas R. Verstaevel, Jeremy Boes, Frederic Migeon, Marie-Pierre Gleizes
SMART Infrastructure Facility - Papers
Smart cities involve, in a large scale, a wide array of interconnected components and agents, giving birth to large and heterogeneous data flows. They are inherently cross-disciplinary, provide interesting challenges, and constitute a very promising field for future urban developments, such as smart grids, eco-feedback, intelligent traffic control, and so on. We advocate that the key to these challenges is the proper modelling and exploitation of context. However, said context is highly dynamic and mainly unpredictable. Improved AI and machine learning techniques are required. Starting from some of the main smart cities features, this paper highlights the key challenges, explains …
Mapping For The Future: Business Intelligence Tool To Map Regional Housing Stock, Murad Safadi, Jun Ma, Rohan Wickramasuriya, Daniel J. Daly, Pascal Perez, Georgios Kokogiannakis
Mapping For The Future: Business Intelligence Tool To Map Regional Housing Stock, Murad Safadi, Jun Ma, Rohan Wickramasuriya, Daniel J. Daly, Pascal Perez, Georgios Kokogiannakis
SMART Infrastructure Facility - Papers
The amount of data available and the lack of data integration represent an increasing challenge to effective planning for government agencies. Integration of data from multiple sources has the potential to enable a user to draw valuable insights, which can be used to enhance service targeting and delivery, and to improve program evaluation. In recognition of the need to improve data integration the University of Wollongong and the NSW Office of Environment and Heritage (OEH) partnered to create an integrated housing stock database for the Illawarra region. The database serves as the backbone for an online and interactive Housing Stock …
Hybrid Method For Building Extraction In Vegetation-Rich Urban Areas From Very High-Resolution Satellite Imagery, Ajith Jayasekare, Rohan Wickramasuriya, Mohammad-Reza Namazi-Rad, Pascal Perez, Gaurav Singh
Hybrid Method For Building Extraction In Vegetation-Rich Urban Areas From Very High-Resolution Satellite Imagery, Ajith Jayasekare, Rohan Wickramasuriya, Mohammad-Reza Namazi-Rad, Pascal Perez, Gaurav Singh
SMART Infrastructure Facility - Papers
A continuous update of building information is necessary in today's urban planning. Digital images acquired by remote sensing platforms at appropriate spatial and temporal resolutions provide an excellent data source to achieve this. In particular, high-resolution satellite images are often used to retrieve objects such as rooftops using feature extraction. However, high-resolution images acquired over built-up areas are associated with noises such as shadows that reduce the accuracy of feature extraction. Feature extraction heavily relies on the reflectance purity of objects, which is difficult to perfect in complex urban landscapes. An attempt was made to increase the reflectance purity of …
Railnet: A Simulation Model For Operational Planning Of Rail Freight, Guillaume Michal, Nam N. Huynh, Nagesh Shukla, Albert Munoz, Johan Barthelemy
Railnet: A Simulation Model For Operational Planning Of Rail Freight, Guillaume Michal, Nam N. Huynh, Nagesh Shukla, Albert Munoz, Johan Barthelemy
SMART Infrastructure Facility - Papers
In many rail networks, infrastructure constraints force the shared usage of lines between passenger and freight movements. Scheduling additional freight movements around existing passenger services and peak traffic based curfews presents significant challenges to commodity industries eager to increase export volumes. This paper addresses the problem of inserting additional freight movements in a constrained railway network. To this end, a railway operations planning model was developed to simulate and insert feasible rail movements in a non-periodic timetable. The simulation modelling platform developed in this paper is called RailNet, which simulates the existing railway network constraints and is capable of adding …
Smart Infrastructure: An Emerging Frontier For Multidisciplinary Research, Robert Ighodaro Ogie, Pascal Perez, Virginia Dignum
Smart Infrastructure: An Emerging Frontier For Multidisciplinary Research, Robert Ighodaro Ogie, Pascal Perez, Virginia Dignum
SMART Infrastructure Facility - Papers
The irreversible marriage between digital technology and physical urban infrastructure has given rise to the concept of smart infrastructure. The potential benefits of smart infrastructure are significant; however, their realisation will depend on society's ability to address pressing issues, such as the need to develop a common language to describe terms and processes. This paper aims to lay out the foundations of such a common language. First, the authors review academic literature in order to outline key characteristics of so-called smart infrastructure systems. Importantly, the authors define and differentiate between smart and intelligent infrastructure systems. Then, the authors use an …