177 research outputs found
Single-Item Fashion Recommender: Towards Cross-Domain Recommendations
Nowadays, recommender systems and search engines play an integral role in
fashion e-commerce. Still, many challenges lie ahead, and this study tries to
tackle some. This article first suggests a content-based fashion recommender
system that uses a parallel neural network to take a single fashion item shop
image as input and make in-shop recommendations by listing similar items
available in the store. Next, the same structure is enhanced to personalize the
results based on user preferences. This work then introduces a background
augmentation technique that makes the system more robust to out-of-domain
queries, enabling it to make street-to-shop recommendations using only a
training set of catalog shop images. Moreover, the last contribution of this
paper is a new evaluation metric for recommendation tasks called
objective-guided human score. This method is an entirely customizable framework
that produces interpretable, comparable scores from subjective evaluations of
human scorers.Comment: 5 Pages, 6 Figures, 1 Tabl
ارزیابی تصمیم¬گیری مبتنی بر شواهد بین مدیران دانشگاه علوم پزشکی قزوین: کاربرد تئوری رفتار برنامه¬ریزی شده
Control of computer pointer using hand gesture recognition in motion pictures
A user interface is designed to control the computer cursor by hand detection
and classification of its gesture. A hand dataset with 6720 image samples is
collected, including four classes: fist, palm, pointing to the left, and
pointing to the right. The images are captured from 15 persons in simple
backgrounds and different perspectives and light conditions. A CNN network is
trained on this dataset to predict a label for each captured image and measure
the similarity of them. Finally, commands are defined to click, right-click and
move the cursor. The algorithm has 91.88% accuracy and can be used in different
backgrounds.Comment: 8 pages, 6 figures, 2 table
Nurses’ perceptions of evidence-based practice: a quantitative study at a teaching hospital in Iran
Background: Evidence-based practice (EBP) provides nurses a method to use critically appraised and scientifically
proven evidence for delivering quality health care and the best decision that leads to quality outcomes.
The purpose of this study was to measure the practice, attitude and knowledge/skill of evidence-based practice
of nurses in a teaching hospital in Iran.
Methods: This cross-sectional study was conducted in 2011.The study sample was composed of 195 nurses
who were working at the Fatemeh Zahra Hospital affiliated to Bushehr University of Medical Sciences
(BPUMS). The survey instrument was a questionnaire based on Upton and Upton study. This tool measures
Nurses' perceptions in the three sub-scales of practice, attitude and knowledge/skill of evidence-based practice.
Descriptive statistical analysis was used to analyze the data. Pearson correlation coefficients were used to examine
the relationship between subscales.
Results: The overall mean score of the evidence-based practice in this study was 4.48±1.26 from 7, and the
three subscales of practice, attitude and knowledge/skill in evidence-based practice were, 4.58±1.24, 4.57±1.35
and 4.39±1.20, respectively. There was a strong relationship between knowledge and performance subscale
(r=0.73, p< 0.01).
Conclusion: Findings of the study indicate that more training and education are required for evidence-based
nursing. Successful implementation of evidence-based nursing depends on organizational plans and empowerment
programs in hospitals. Hence, hospital managers should formulate a comprehensive strategy for improving
EBP
Prediction of Breeding Values for Dairy Cattle Using Artificial Neural Networks and Neuro-Fuzzy Systems
Developing machine learning and soft computing techniques has provided many opportunities for researchers to establish new analytical methods in different areas of science. The objective of this study is to investigate the potential of two types of intelligent learning methods, artificial neural networks and neuro-fuzzy systems, in order to estimate breeding values (EBV) of Iranian dairy cattle. Initially, the breeding values of lactating Holstein cows for milk and fat yield were estimated using conventional best linear unbiased prediction (BLUP) with an animal model. Once that was established, a multilayer perceptron was used to build ANN to predict breeding values from the performance data of selection candidates. Subsequently, fuzzy logic was used to form an NFS, a hybrid intelligent system that was implemented via a local linear model tree algorithm. For milk yield the correlations between EBV and EBV predicted by the ANN and NFS were 0.92 and 0.93, respectively. Corresponding correlations for fat yield were 0.93 and 0.93, respectively. Correlations between multitrait predictions of EBVs for milk and fat yield when predicted simultaneously by ANN were 0.93 and 0.93, respectively, whereas corresponding correlations with reference EBV for multitrait NFS were 0.94 and 0.95, respectively, for milk and fat production
Global trends of hand and wrist trauma : a systematic analysis of fracture and digit amputation using the Global Burden of Disease 2017 Study
Background As global rates of mortality decrease, rates of non-fatal injury have increased, particularly in low Socio-demographic Index (SDI) nations. We hypothesised this global pattern of non-fatal injury would be demonstrated in regard to bony hand and wrist trauma over the 27-year study period. Methods The Global Burden of Diseases, Injuries, and Risk Factors Study 2017 was used to estimate prevalence, age-standardised incidence and years lived with disability for hand trauma in 195 countries from 1990 to 2017. Individual injuries included hand and wrist fractures, thumb amputations and non-thumb digit amputations. Results The global incidence of hand trauma has only modestly decreased since 1990. In 2017, the age-standardised incidence of hand and wrist fractures was 179 per 100 000 (95% uncertainty interval (UI) 146 to 217), whereas the less common injuries of thumb and non-thumb digit amputation were 24 (95% UI 17 to 34) and 56 (95% UI 43 to 74) per 100 000, respectively. Rates of injury vary greatly by region, and improvements have not been equally distributed. The highest burden of hand trauma is currently reported in high SDI countries. However, low-middle and middle SDI countries have increasing rates of hand trauma by as much at 25%. Conclusions Certain regions are noted to have high rates of hand trauma over the study period. Low-middle and middle SDI countries, however, have demonstrated increasing rates of fracture and amputation over the last 27 years. This trend is concerning as access to quality and subspecialised surgical hand care is often limiting in these resource-limited regions.Peer reviewe
Global trends of hand and wrist trauma: a systematic analysis of fracture and digit amputation using the Global Burden of Disease 2017 Study
Background: As global rates of mortality decrease, rates of non-fatal injury have increased, particularly in low Socio-demographic Index (SDI) nations. We hypothesised this global pattern of non-fatal injury would be demonstrated in regard to bony hand and wrist trauma over the 27-year study period.
Methods: The Global Burden of Diseases, Injuries, and Risk Factors Study 2017 was used to estimate prevalence, age-standardised incidence and years lived with disability for hand trauma in 195 countries from 1990 to 2017. Individual injuries included hand and wrist fractures, thumb amputations and non-thumb digit amputations.
Results: The global incidence of hand trauma has only modestly decreased since 1990. In 2017, the age- standardised incidence of hand and wrist fractures was 179 per 100 000 (95% uncertainty interval (UI) 146 to 217), whereas the less common injuries of thumb and non-thumb digit amputation were 24 (95% UI 17 to 34) and 56 (95% UI 43 to 74) per 100 000, respectively. Rates of injury vary greatly by region, and improvements have not been equally distributed. The highest burden of hand trauma is currently reported in high SDI countries. However, low-middle and middle SDI countries have increasing rates of hand trauma by as much at 25%.
Conclusions: Certain regions are noted to have high rates of hand trauma over the study period. Low-middle and middle SDI countries, however, have demonstrated increasing rates of fracture and amputation over the last 27 years. This trend is concerning as access to quality and subspecialised surgical hand care is often limiting in these resource-limited regions.publishedVersio
Global trends of hand and wrist trauma: A systematic analysis of fracture and digit amputation using the Global Burden of Disease 2017 Study
Background: As global rates of mortality decrease, rates of non-fatal injury have increased, particularly in low Socio-demographic Index (SDI) nations. We hypothesised this global pattern of non-fatal injury would be demonstrated in regard to bony hand and wrist trauma over the 27-year study period. Methods: The Global Burden of Diseases, Injuries, and Risk Factors Study 2017 was used to estimate prevalence, age-standardised incidence and years lived with disability for hand trauma in 195 countries from 1990 to 2017. Individual injuries included hand and wrist fractures, thumb amputations and non-thumb digit amputations. Results: The global incidence of hand trauma has only modestly decreased since 1990. In 2017, t
The burden of unintentional drowning : global, regional and national estimates of mortality from the Global Burden of Disease 2017 Study
Background Drowning is a leading cause of injury-related mortality globally. Unintentional drowning (International Classification of Diseases (ICD) 10 codes W65-74 and ICD9 E910) is one of the 30 mutually exclusive and collectively exhaustive causes of injury-related mortality in the Global Burden of Disease (GBD) study. This study's objective is to describe unintentional drowning using GBD estimates from 1990 to 2017. Methods Unintentional drowning from GBD 2017 was estimated for cause-specific mortality and years of life lost (YLLs), age, sex, country, region, Socio-demographic Index (SDI) quintile, and trends from 1990 to 2017. GBD 2017 used standard GBD methods for estimating mortality from drowning. Results Globally, unintentional drowning mortality decreased by 44.5% between 1990 and 2017, from 531 956 (uncertainty interval (UI): 484 107 to 572 854) to 295 210 (284 493 to 306 187) deaths. Global age-standardised mortality rates decreased 57.4%, from 9.3 (8.5 to 10.0) in 1990 to 4.0 (3.8 to 4.1) per 100 000 per annum in 2017. Unintentional drowning-associated mortality was generally higher in children, males and in low-SDI to middle-SDI countries. China, India, Pakistan and Bangladesh accounted for 51.2% of all drowning deaths in 2017. Oceania was the region with the highest rate of age-standardised YLLs in 2017, with 45 434 (40 850 to 50 539) YLLs per 100 000 across both sexes. Conclusions There has been a decline in global drowning rates. This study shows that the decline was not consistent across countries. The results reinforce the need for continued and improved policy, prevention and research efforts, with a focus on low- and middle-income countries.Peer reviewe
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