1,720,963 research outputs found
Skin Disease Detection for Kids at School Using Deep Learning Techniques
Get PDFDue to the rapid spread of skin diseases among children in school, and the fact that skin disease is the most common contagious disease spreading within students in school, this study investigates the factors that could help in early detection of these skin diseases using AI techniques. The texture and color of the skin can change as a result of the disease. Examples of these diseases are chickenpox, impetigo, scabies, infectious erythema, skin warts, and other infectious skin diseases. Skin disorders are long-term and contagious, it can be detected early and with high accuracy before it become a long-term problem. This research builds a system of skin disease detection using the CNN technique and a pre-trained VGG19 model. In addition, the dataset contains 4500 images that were collected from different sources to train the VGG19 model. Data augmentation technique such as zooming, cropping, and rotating were used. After that, the Adamax optimizer, which is most suitable for the proposed methodology, was used to obtain high accuracy and required results. This study achieved a high accuracy of 99% compared to other similar researchs. It can be concluded that this system is very reliable which can be integrated to smart schools as part of IOT systems
Gene expression programming for Efficient Time-series Financial Forecasting
Get PDFStock market prediction is of immense interest to trading companies and buyers due to
high profit margins. The majority of successful buying or selling activities occur close
to stock price turning trends. This makes the prediction of stock indices and analysis a
crucial factor in the determination that whether the stocks will increase or decrease the
next day. Additionally, precise prediction of the measure of increase or decrease of
stock prices also plays an important role in buying/selling activities. This research
presents two core aspects of stock-market prediction. Firstly, it presents a Networkbased
Fuzzy Inference System (ANFIS) methodology to integrate the capabilities of
neural networks with that of fuzzy logic. A specialised extension to this technique is
known as the genetic programming (GP) and gene expression programming (GEP) to
explore and investigate the outcome of the GEP criteria on the stock market price
prediction.
The research presented in this thesis aims at the modelling and prediction of short-tomedium
term stock value fluctuations in the market via genetically tuned stock market
parameters. The technique uses hierarchically defined GP and gene-expressionprogramming
(GEP) techniques to tune algebraic functions representing the fittest
equation for stock market activities. The technology achieves novelty by proposing a
fractional adaptive mutation rate Elitism (GEP-FAMR) technique to initiate a balance
between varied mutation rates between varied-fitness chromosomes thereby improving
prediction accuracy and fitness improvement rate. The methodology is evaluated
against five stock market companies with each having its own trading circumstances
during the past 20+ years. The proposed GEP/GP methodologies were evaluated based
on variable window/population sizes, selection methods, and Elitism, Rank and Roulette
selection methods. The Elitism-based approach showed promising results with a low
error-rate in the resultant pattern matching with an overall accuracy of 95.96% for
short-term 5-day and 95.35% for medium-term 56-day trading periods. The
contribution of this research to theory is that it presented a novel evolutionary
methodology with modified selection operators for the prediction of stock exchange
data via Gene expression programming. The methodology dynamically adapts the
mutation rate of different fitness groups in each generation to ensure a diversification
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balance between high and low fitness solutions. The GEP-FAMR approach was
preferred to Neural and Fuzzy approaches because it can address well-reported
problems of over-fitting, algorithmic black-boxing, and data-snooping issues via GP
and GEP algorithmsSaudi Cultural Burea
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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