scholarly journals Restaurants Rating Prediction using Machine Learning Algorithms

2020 ◽  
Vol 9 (6) ◽  
pp. 466-469
Keyword(s):  
Machine Learning ◽  
Food Quality ◽  
Average Cost ◽  
Machine Learning Algorithms ◽  
Regression Problem ◽  
Independent Variable ◽  
Quality Of Food ◽  
Rating Prediction ◽  
The Relationship

Restaurant Rating has become the most commonly used parameter for judging a restaurant for any individual. A lot of research has been done on different restaurants and the quality of food it serves. Rating of a restaurant depends on factors like reviews, area situated, average cost for two people, votes, cuisines and the type of restaurant. The project aim is to find out the relationship between the dependent and independent variable. Proposed project is a Machine Learning Regression problem which uses Restaurant Rating dataset. Based on various attributes like the food, quality, prize ambience of the restaurant it predicts the Restaurant Rating

scholarly journals Learning Predictors from Multidimensional Data with Tensor Factorizations

2021 ◽  
Vol 1 (3) ◽  
Author(s):  
Soo Min Kwon ◽  
Anand D. Sarwate
Keyword(s):  
Machine Learning ◽  
Machine Learning Algorithms ◽  
Multidimensional Data ◽  
Tensor Structure ◽  
Statistical Machine Learning ◽  
Machine Learning Classification ◽  
Independent Variables ◽  
Tensor Factorizations ◽  
The Relationship

Statistical machine learning algorithms often involve learning a linear relationship between dependent and independent variables. This relationship is modeled as a vector of numerical values, commonly referred to as weights or predictors. These weights allow us to make predictions, and the quality of these weights influence the accuracy of our predictions. However, when the dependent variable inherently possesses a more complex, multidimensional structure, it becomes increasingly difficult to model the relationship with a vector. In this paper, we address this issue by investigating machine learning classification algorithms with multidimensional (tensor) structure. By imposing tensor factorizations on the predictors, we can better model the relationship, as the predictors would take the form of the data in question. We empirically show that our approach works more efficiently than the traditional machine learning method when the data possesses both an exact and an approximate tensor structure. Additionally, we show that estimating predictors with these factorizations also allow us to solve for fewer parameters, making computation more feasible for multidimensional data.

scholarly journals INVESTIGATING FOOD QUALITY AT UUM’S LAKE RESTAURANT: ARE CUSTOMERS SATISFIED?

2021 ◽  
pp. 210-232
Author(s):  
Muhamad Shah Kamal Ideris ◽  
Eshaby Mustafa ◽  
Muhamad Nizam Saadin
Keyword(s):  
Food Quality ◽  
Sampling Method ◽  
Service Providers ◽  
Restaurant Industry ◽  
Unit Of Analysis ◽  
New Knowledge ◽  
Quality Of Food ◽  
The Relationship ◽  
Universiti Utara Malaysia

The restaurant concept plays an important role in establishing and running a successful food business. Maintaining the quality of foods is an important criterion that service providers must look at to attract new customers and retain existing customers on the premises. By considering the importance of the quality of foods and customers in the restaurant industry, this study examines the relationship between the quality of food attributes and customer satisfaction. The research utilized a quantitative approach to conducting the study. Universiti Utara Malaysia students who visited The Lake restaurant are chosen as the unit of analysis. The close-ended questionnaires were distributed to the students to obtain the data for this study. In order to conduct the survey, the researchers used Google form as a tool. The questionnaires were distributed by Google form using the purposive sampling method. A total of 400 questionnaires were distributed among the students, and 364 usable questionnaires proceeded for the descriptive and inferential analyses of the study. The study found that there is a positive relationship between food quality attributes (freshness, taste, healthy options, variety of menu, presentations, and temperature) and customers' satisfaction. The findings of the study posed significance and added new knowledge to the practitioners and academicians.

scholarly journals Algorithmic and human prediction of success in human collaboration from visual features

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Martin Saveski ◽  
Edmond Awad ◽  
Iyad Rahwan ◽  
Manuel Cebrian
Keyword(s):  
Machine Learning ◽  
Visual Cues ◽  
Success Factors ◽  
Group Performance ◽  
Learning Algorithms ◽  
Machine Learning Algorithms ◽  
Adventure Game ◽  
Group Success ◽  
The Relationship ◽  
Better Than

AbstractAs groups are increasingly taking over individual experts in many tasks, it is ever more important to understand the determinants of group success. In this paper, we study the patterns of group success in Escape The Room, a physical adventure game in which a group is tasked with escaping a maze by collectively solving a series of puzzles. We investigate (1) the characteristics of successful groups, and (2) how accurately humans and machines can spot them from a group photo. The relationship between these two questions is based on the hypothesis that the characteristics of successful groups are encoded by features that can be spotted in their photo. We analyze >43K group photos (one photo per group) taken after groups have completed the game—from which all explicit performance-signaling information has been removed. First, we find that groups that are larger, older and more gender but less age diverse are significantly more likely to escape. Second, we compare humans and off-the-shelf machine learning algorithms at predicting whether a group escaped or not based on the completion photo. We find that individual guesses by humans achieve 58.3% accuracy, better than random, but worse than machines which display 71.6% accuracy. When humans are trained to guess by observing only four labeled photos, their accuracy increases to 64%. However, training humans on more labeled examples (eight or twelve) leads to a slight, but statistically insignificant improvement in accuracy (67.4%). Humans in the best training condition perform on par with two, but worse than three out of the five machine learning algorithms we evaluated. Our work illustrates the potentials and the limitations of machine learning systems in evaluating group performance and identifying success factors based on sparse visual cues.

scholarly journals Assessing automated CMR contouring algorithms using systematic contour quality scoring analysis

2021 ◽  
Vol 22 (Supplement_1) ◽  
Author(s):  
M Omer ◽  
A Amir-Khalili ◽  
A Sojoudi ◽  
T Thao Le ◽  
S A Cook ◽  
...  
Keyword(s):  
Machine Learning ◽  
Learning Algorithm ◽  
Random Order ◽  
Standard Operating Procedure ◽  
Left Ventricular ◽  
Quality Score ◽  
Machine Learning Algorithms ◽  
Dice Similarity Coefficient ◽  
National Budget

Abstract Funding Acknowledgements Type of funding sources: Public grant(s) – National budget only. Main funding source(s): SmartHeart EPSRC programme grant (www.nihr.ac.uk), London Medical Imaging and AI Centre for Value-Based Healthcare Background Quality measures for machine learning algorithms include clinical measures such as end-diastolic (ED) and end-systolic (ES) volume, volumetric overlaps such as Dice similarity coefficient and surface distances such as Hausdorff distance. These measures capture differences between manually drawn and automated contours but fail to capture the trust of a clinician to an automatically generated contour. Purpose We propose to directly capture clinicians’ trust in a systematic way. We display manual and automated contours sequentially in random order and ask the clinicians to score the contour quality. We then perform statistical analysis for both sources of contours and stratify results based on contour type. Data The data selected for this experiment came from the National Health Center Singapore. It constitutes CMR scans from 313 patients with diverse pathologies including: healthy, dilated cardiomyopathy (DCM), hypertension (HTN), hypertrophic cardiomyopathy (HCM), ischemic heart disease (IHD), left ventricular non-compaction (LVNC), and myocarditis. Each study contains a short axis (SAX) stack, with ED and ES phases manually annotated. Automated contours are generated for each SAX image for which manual annotation is available. For this, a machine learning algorithm trained at Circle Cardiovascular Imaging Inc. is applied and the resulting predictions are saved to be displayed in the contour quality scoring (CQS) application. Methods: The CQS application displays manual and automated contours in a random order and presents the user an option to assign a contour quality score 1: Unacceptable, 2: Bad, 3: Fair, 4: Good. The UK Biobank standard operating procedure is used for assessing the quality of the contoured images. Quality scores are assigned based on how the contour affects clinical outcomes. However, as images are presented independent of spatiotemporal context, contour quality is assessed based on how well the area of the delineated structure is approximated. Consequently, small contours and small deviations are rarely assigned a quality score of less than 2, as they are not clinically relevant. Special attention is given to the RV-endo contours as often, mostly in basal images, two separate contours appear. In such cases, a score of 3 is given if the two disjoint contours sufficiently encompass the underlying anatomy; otherwise they are scored as 2 or 1. Results A total of 50991 quality scores (24208 manual and 26783 automated) are generated by five expert raters. The mean score for all manual and automated contours are 3.77 ± 0.48 and 3.77 ± 0.52, respectively. The breakdown of mean quality scores by contour type is included in Fig. 1a while the distribution of quality scores for various raters are shown in Fig. 1b. Conclusion We proposed a method of comparing the quality of manual versus automated contouring methods. Results suggest similar statistics in quality scores for both sources of contours. Abstract Figure 1

scholarly journals ANALISIS KUALITAS MAKANAN PADA SAAT BREAKFASTDI THE ALIGA HOTEL PADANG

2018 ◽  
Vol 10 (1) ◽  
pp. 95
Author(s):  
Ivony Tresia
Keyword(s):  
Data Collection ◽  
Food Quality ◽  
Sampling Technique ◽  
Validity And Reliability ◽  
Descriptive Data ◽  
Quality Requirements ◽  
Perishable Goods ◽  
Continue Research ◽  
Quality Of Food

Thisdstudy originated from the resultsiofiprevious studies where there were problems regarding the process of managing the procurement of perishable goods that did not have written procedures, the quality requirements of the material written and standardized in the hotel. To continue the problem where there are still problems related to food quality at breakfast at The Aliga Hotel Padang. This study aims to analyze food quality at breakfast at The Aliga Hotel Padang. This type of studyiisiquantitativepdescriptive. The population in this study were guests who stayed and breakfast at The Aliga Hotel Padang. The sampling technique used is purposive sampling. The totaliofisamplesiin this study amounted to 91 people. Data collection techniques were carried out by distributing questionnaires (questionnaires) using the Liker scale that has been tested for validity and reliability. Thenitheidata wereianalysisithrough data tabulation and descriptive data using percentages. Based on the research that has been done, the results obtained that the quality of food at breakfast at The Aliga Hotel Padang is in the category of enough with a percentage of 45.05%. It is recommended for other researchers to continue research on the quantity of food. Keywords: Food Quality, Breakfast

Prediction on water quality of a lake in Chennai, India using machine learning algorithms

2021 ◽  
Vol 218 ◽  
pp. 44-51
Author(s):  
D. Venkata Vara Prasad ◽  
Lokeswari Y. Venkataramana ◽  
P. Senthil Kumar ◽  
G. Prasannamedha ◽  
K. Soumya ◽  
...  
Keyword(s):  
Machine Learning ◽  
Water Quality ◽  
Learning Algorithms ◽  
Machine Learning Algorithms

scholarly journals Combine Clustering and Machine Learning for Enhancing the Efficiency of Energy Baseline of Chiller System

Energies ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 4368 ◽  
Author(s):  
Chun-Wei Chen ◽  
Chun-Chang Li ◽  
Chen-Yu Lin
Keyword(s):  
Machine Learning ◽  
Prediction Accuracy ◽  
Prediction Models ◽  
Machine Learning Algorithms ◽  
Learning Models ◽  
Important Method ◽  
Gap Statistic ◽  
Machine Learning Model ◽  
Key Variables

Energy baseline is an important method for measuring the energy-saving benefits of chiller system, and the benefits can be calculated by comparing prediction models and actual results. Currently, machine learning is often adopted as a prediction model for energy baselines. Common models include regression, ensemble learning, and deep learning models. In this study, we first reviewed several machine learning algorithms, which were used to establish prediction models. Then, the concept of clustering to preprocess chiller data was adopted. Data mining, K-means clustering, and gap statistic were used to successfully identify the critical variables to cluster chiller modes. Applying these key variables effectively enhanced the quality of the chiller data, and combining the clustering results and the machine learning model effectively improved the prediction accuracy of the model and the reliability of the energy baselines.

scholarly journals Machine Learning Algorithms to Predict Recurrence within 10 Years after Breast Cancer Surgery: A Prospective Cohort Study

Cancers ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 3817
Author(s):  
Shi-Jer Lou ◽  
Ming-Feng Hou ◽  
Hong-Tai Chang ◽  
Chong-Chi Chiu ◽  
Hao-Hsien Lee ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Machine Learning ◽  
Learning Algorithms ◽  
External Validation ◽  
Model Development ◽  
Cancer Surgery ◽  
Machine Learning Algorithms ◽  
Breast Cancer Surgery ◽  
Training Dataset

No studies have discussed machine learning algorithms to predict recurrence within 10 years after breast cancer surgery. This study purposed to compare the accuracy of forecasting models to predict recurrence within 10 years after breast cancer surgery and to identify significant predictors of recurrence. Registry data for breast cancer surgery patients were allocated to a training dataset (n = 798) for model development, a testing dataset (n = 171) for internal validation, and a validating dataset (n = 171) for external validation. Global sensitivity analysis was then performed to evaluate the significance of the selected predictors. Demographic characteristics, clinical characteristics, quality of care, and preoperative quality of life were significantly associated with recurrence within 10 years after breast cancer surgery (p < 0.05). Artificial neural networks had the highest prediction performance indices. Additionally, the surgeon volume was the best predictor of recurrence within 10 years after breast cancer surgery, followed by hospital volume and tumor stage. Accurate recurrence within 10 years prediction by machine learning algorithms may improve precision in managing patients after breast cancer surgery and improve understanding of risk factors for recurrence within 10 years after breast cancer surgery.

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