1,721,023 research outputs found
Manufacturing Futures Forum: Future digital manufacturing
No full textPresented by the Manufacturing Futures Research Institute. The Swinburne Factory of the Future (FoF) and Digital Innovation Lab (DIL) deliver and supports digital transformation and Manufacturing SME engagement through the research, technology development, consulting, training and demonstration of Industry 4.0 technologies and solutions. In this Manufacturing Futures forum, A/Prof. Prem Prakash Jayaraman introduces the FOF and DIL, their capabilities, and presents with use cases, an overview of the spectrum of industry sectors serviced by FoF and DIL. Mr. Vikram Sachdeva and Dr. Sharad Menon introduce the FOF SME engagement program which includes the Industry 4.0 Hub and its Industry 4.0 business readiness programs and advisory capabilities for manufacturing SMEs. Dr. Abhik Banerjee and Dr. Abdur Forkan talk about the opportunities and challenges in Digital Manufacturing specifically around AI and will share AI-driven Digital Manufacturing use cases. Dr. Shanti Krishnan presents a showcase of industry-funded Industry 4.0 projects which have been designed and developed at FOF in the past year
Algorithm design for wireless networks with minimized overhead costs
No full textWireless network performance is typically affected by overheads arising due to unique challenges of the wireless medium. The broadcast nature of the medium implies that the channel is shared among all nodes, thereby prohibiting simultaneous transmissions from neighbouring nodes. This results in contention and collision overheads which get compounded with the increase in the number of nodes, posing great challenges to network scalability. In a multihop scenario, overheads are incurred due to challenges associated with traditional distributed systems. This is aggravated by contention overheads described earlier which make it difficult to disseminate information on a large scale.
In this work, the author studies the design of algorithms in wireless networks that incur zero or negligible overheads. The first problem addressed is differentiated channel access to provide quality of service (QoS) guarantees for real-time traffic. The author proposes a contention-tone based service differentiation scheme that leverages the benefits of out-of-band signaling to minimize collision probability. Using analytical and simulation results, the author shows that effective service differentiation can be achieved among the different traffic classes. The author addresses the issue of unfairness in two-way real-time traffic by using device specific differentiation in which the access point(AP) gets higher priority for channel access. The author shows that this results in equal opportunities for the AP and voice traffic, thereby resolving bottlenecks.
Converse to its effect on contention, the broadcast nature provides implicit benefits for data dissemination as all transmitted data is shared among neighboring nodes. This feature has been referred to in existing literature as wireless broadcast advantage (WBA), which has been exploited for efficient protocol design to reduce transmission overheads. The author analyzes the performance benefits achievable purely by exploiting WBA in the context of network-wide broadcast. The analysis is focused on stateless broadcasting algorithms in which nodes decide on their forwarding behaviour based on information derived from overheard transmissions. The proposed approach categorizes the information available at the nodes into two distinct phases and identifies the performance benefits that can be attained from each. Based on insights obtained from the analysis, the author studies the design of stateless broadcasting algorithms in a multi-rate scenario. Subsequently, stateless algorithms that simultaneously reduce the broadcast latency as well as the percentage of forwarding nodes are proposed.
The author's third contribution concerns the self-organization of a wireless network so as to provide performance guarantees. A design that reorganizes the network in order to exhibit small world properties is proposed. The author studies the use of long range directional beams between nodes to achieve reduction in path length across the network. The proposed algorithm centers around a new centrality measure, which is defined as the wireless flow betweenness (WFB). WFB can be computed individually at nodes based on traffic flow information obtained from neighborhood transmissions. Subsequently, long range beams from a fraction of nodes results in significant reduction in the average path length of the network. Thus, the proposed design exploits WBA and minimizes explicit overheads. The proposed measure involves recursive computation at nodes that results in information being propagated over multiple hops, which is unlike the stateless broadcasting mechanisms mentioned previously in which the information is limited to the local neighbourhood.
Finally, the author studies the impact of WBA on the propagation of information over multiple hops. A setup in which nodes store and forward all information received implicitly from neighbourhood transmissions is considered and this results in the creation of a distributed cache across the network, which is termed broadcast cache. The author then analyzes the growth of the broadcast cache in terms of the smallest set of transmissions in the network, which is defined as the set of non-altruistic transmissions. The author obtains the feasibility conditions which determine whether WBA can be effectively utilized depending on the flow characteristics.
The above problems are fundamental for a range of wireless network operations where it is imperative that overhead costs have to be minimized. The author's work also shows that the minimization of overhead costs can be achieved by a combination of algorithm design as well as the appropriate choice of parameters for the algorithm design.DOCTOR OF PHILOSOPHY (SCE
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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