Kevin ZhaoCovariance and Correlation RefresherOne step to learning about another way to test data samples is the look into covariance and correlation. The goal of these two should be…Nov 19, 2019Nov 19, 2019
Kevin ZhaoHypothesis testing metrics RefresherHypothesis testing is a common method used to in statistically testing if a theory was true with data. As with any test, there are a…Nov 12, 2019Nov 12, 2019
Kevin ZhaoHypothesis Testing RefresherAs with many data scientists, having to perform a hypothesis test, whether to test a theory or to pinpoint a problem, is a common…Nov 5, 2019Nov 5, 2019
Kevin ZhaoDistribution and Sampling RefresherWhile tool and techniques applied in data analytics are an important aspect, the application of statistics is just as valuable in…Oct 29, 2019Oct 29, 2019
Kevin ZhaoConvolutional Neural Network RefresherConvolutional neural networks are a neural network that is mainly used to process images and identify patterns within them. They typically…Oct 22, 2019Oct 22, 2019
Kevin ZhaoNeural Networks RefresherNeural networks are becoming the backbone of many of the systems and features that are meant to solve and predict problems for data…Oct 15, 2019Oct 15, 2019
Kevin ZhaoRecommendation System RefresherRecommendation systems exists more frequently than I thought would have known before learning about data science. To be able to predict…Oct 8, 2019Oct 8, 2019
Kevin ZhaoTime Series RefresherTime series data is data where the time variable is an important component of the dataset. It will determine when the data point happened…Oct 1, 2019Oct 1, 2019
Kevin ZhaoClustering RefresherWhen creating machine learning models, there can be two types of models. The ones previously discussed are with datasets that already have…Sep 24, 2019Sep 24, 2019
Kevin ZhaoSupport Vector Machines RefresherSupport vector machines is a widely used technique in classification problems. The idea behind a SVM is to be able to have a line or a…Sep 16, 2019Sep 16, 2019