905 research outputs found
DL based analysis of movie reviews
Undoubtedly, social media are brainstormed by a tremendous volume of stories,
feedback, reviews, and reactions expressed in various languages and idioms,
even though some are factually incorrect. These motifs make assessing such data
challenging, time-consuming, and vulnerable to misinterpretation. This paper
describes a classification model for movie reviews founded on deep learning
approaches. Almost 500KB pairs of balanced data from the IMDb movie review
databases are employed to train the model. People's perspectives regarding
movies were classified using both the long short-term memory (LSTM) and
convolutional neural network (CNN) strategies. According to the findings, the
CNN algorithm's prediction accuracy rate would be almost 97.4%. Furthermore,
the model trained by LSTM resulted in accuracies of around and applying 99.2%
within the Keras library. The model is investigated more by modification of
model parameters. According to the outcomes, LTSM outperforms CNN in assessing
IMDb movie reviews and is computationally less costly than LSTM
A Fault Detection Scheme Utilizing Convolutional Neural Network for PV Solar Panels with High Accuracy
Solar energy is one of the most dependable renewable energy technologies, as
it is feasible almost everywhere globally. However, improving the efficiency of
a solar PV system remains a significant challenge. To enhance the robustness of
the solar system, this paper proposes a trained convolutional neural network
(CNN) based fault detection scheme to divide the images of photovoltaic
modules. For binary classification, the algorithm classifies the input images
of PV cells into two categories (i.e. faulty or normal). To further assess the
network's capability, the defective PV cells are organized into shadowy,
cracked, or dusty cells, and the model is utilized for multiple
classifications. The success rate for the proposed CNN model is 91.1% for
binary classification and 88.6% for multi-classification. Thus, the proposed
trained CNN model remarkably outperforms the CNN model presented in a previous
study which used the same datasets. The proposed CNN-based fault detection
model is straightforward, simple and effective and could be applied in the
fault detection of solar panel
ANFIS-based prediction of power generation for combined cycle power plant
This paper presents the application of an adaptive neuro-fuzzy inference
system (ANFIS) to predict the generated electrical power in a combined cycle
power plant. The ANFIS architecture is implemented in MATLAB through a code
that utilizes a hybrid algorithm that combines gradient descent and the least
square estimator to train the network. The Model is verified by applying it to
approximate a nonlinear equation with three variables, the time series
Mackey-Glass equation and the ANFIS toolbox in MATLAB. Once its validity is
confirmed, ANFIS is implemented to forecast the generated electrical power by
the power plant. The ANFIS has three inputs: temperature, pressure, and
relative humidity. Each input is fuzzified by three Gaussian membership
functions. The first-order Sugeno type defuzzification approach is utilized to
evaluate a crisp output. Proposed ANFIS is cable of successfully predicting
power generation with extremely high accuracy and being much faster than
Toolbox, which makes it a promising tool for energy generation applications
Application of artificial intelligence in fault detection and classification of solar power plants and prediction of power generation of combined cycled power plants
Solar energy is one of the most dependable renewable energy technologies, as it is feasible
almost everywhere globally and is environmentally friendly. Photovoltaic-based renewable energy
systems are highly susceptible to power grid transients. Their operation may suffer drastically
during faults in the solar arrays, power electronics, and the inverter. Thus, it is vital to develop an
intelligent mechanism to detect any type of fault or abnormalities within the shortest possible time
that will increase reliability and decrease the maintenance cost of the solar system. To accomplish
that, in this research, different artificial intelligence (AI) techniques are utilized to develop
classification, fault detection, and optimization algorithms for solar photovoltaic (PV) panels.
Initially, a convolutional neural network (CNN) model was designed to detect and classify PV
modules based on the images taken from the solar panels. It is found that the proposed CNN model
can identify the fault with an accuracy of 91.1% for binary (i.e., healthy and faulty) and 88.6% for
multi-classification (i.e. cracked, shadowy, dusty and normal). However, sometimes the fault in
the solar panel may not be detectable from the images of the solar panels. That is why an adaptive
neuro-fuzzy inference system (ANFIS) model is developed to detect and classify the defects of PV
systems based on the signals collected from the solar panels. The performance of the developed
defect detection and classification algorithms was tested using real-life solar farm datasets. The
performance of the proposed ANFIS-based fault detection scheme has been compared with
different machine learning algorithms. It is found from the comparative results that the proposed
ANFIS-based fault detection technique is robust and straightforward. Thus, the developed ANFISbased intelligent technique will enhance the reliability of the PV system by minimizing the
maintenance cost and saving energy.
Finally, another ANFIS model is developed to predict the power generation in a combined
cycle power plant. The codes were written in MATLAB, and their validity is confirmed with the
available ANFIS toolboxes in MATLAB. The proposed ANFIS is found capable of successfully
predicting power generation with extremely high accuracy and being much faster than the built-in
ANFIS of MATLAB Toolbox. Thus, the developed ANFIS model could be utilized as a promising
tool for energy generation applications
Katieâs Closet: An On-campus Experiential Learning Project
Two faculty and one undergraduate student embarked on an applied learning experience to determine the feasibility of starting a free professional clothing shop for University students called Katie\u27s Closet. All aspects of conceptualizing and testing the Katie\u27s Closet pop-up-store concept began from a feasibility study. With the support of faculty mentors, the undergraduate student researched, analyzed, and executed the project. The action research project started with informational interviews and a focus group for gathering qualitative data on the student population\u27s needs. These findings led to more research to explore potential collaborative partnerships with other University departments. Competitive benchmarking also supported developing the entrepreneurial project concept and offered insightful information to help with the start-up. The data provided the foundational knowledge to create and market a Katie\u27s Closet pop-up store on campus. This article is a collaborative effort written by both the undergraduate student intern and her faculty mentors
Callersâ attitudes and experiences of UK breastfeeding helpline support
Background: Breastfeeding peer support, is considered to be a key intervention for increasing breastfeeding duration rates. Whilst a number of national organisations provide telephone based breastfeeding peer support, to date there have been no published evaluations into callersâ experiences and attitudes of this support. In this study we report on the descriptive and qualitative insights provided by 908 callers as part of an evaluation of UK-based breastfeeding helpline(s).
Methods: A structured telephone interview, incorporating Likert scale responses and open-ended questions was undertaken with 908 callers over May to August, 2011 to explore callersâ experiences of the help and support received via the breastfeeding helpline(s).
Results: Overall satisfaction with the helpline was high, with the vast majority of callersâ recalling positive experiences of the help and support received. Thematic analysis was undertaken on all qualitative and descriptive data recorded during the evaluation, contextualised within the main areas addressed within the interview schedule in terms of âcontact with the helplinesâ; âexperiences of the helpline serviceâ, âperceived effectiveness of support provisionâ and âimpact on caller wellbeingâ.
Conclusion: Callers valued the opportunity for accessible, targeted, non-judgmental and convenient support. Whilst the telephone support did not necessarily influence womenâs breastfeeding decisions, the support they received left them feeling reassured, confident and more determined to continue breastfeeding. We recommend extending the helpline service to ensure support can be accessed when needed, and ongoing training and support for volunteers. Further advertising and promotion of the service within wider demographic groups is warranted
Surgical management of life threatening events caused by intermittent aortic insufficiency in a native valve: case report
We describe a case of a patient admitted with apparent life threatening events characterized by hypotension and bradycardia. The patient was ultimately found to have intermittent severe aortic insufficiency. Upon surgical exploration, abnormalities were discovered in the aortic valve, which had a small left coronary cusp with absence of the nodulus of Arantius. Following surgical repair of the valve, aimed at preventing the small cusp from becoming stuck in the open position, the patient has remained episode free for over one year
Preterm birth a long distance from home and its significant social and financial stress
The present paper reports a retrospective cohort of preterm infants admitted to our hospital who delivered outside the normal geographical catchment area of the mother's local level three neonatal nursery. Nineteen mothers had 21 preterm infants (23.1-34.9 weeks, 500-2330 g born) where 14 infants required ventilation (median 57 h, range 3-428). Eighteen survivors had a median length of stay of 41 days (range 3-91). Twelve of 19 mothers were interviewed: all described isolation, loneliness, poor social support and significant financial hardship related to getting their infants back to a local hospital or home. To avoid these problems, we recommend confining travel to within a short distance from home or local maternity unit after 22 weeks
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