Tim Matteson's Likes

August 2019

One Shot Learning and Other Strategies for Re

Summary: Not enough labeled training data is a huge barrier to getting at the equally large benefits that could be had from deep learning applications. Here are five…

Blog One Shot Learning and Other Strategies for Re 2 Likes Validation of the Prediction Model When there is a prediction model, apart from R-square, residuals etc. what are the different ways of performing validation of the prediction model? Basically,what are the different ways (apart from… Discussion Validation of the Prediction Model 1 Like looking for bird dataset Hi, I'm a student in France and I am looking for a dataset including most (or all) bird species, with informations like average wingspan, average weigth, max flight speed and eventually picture(s) of… Discussion looking for bird dataset 1 Like

July 2019

How to analyze spatial data stored in a non-… Hello DSC folks, I have some survey data that I'm trying to use for mapping, but I can't figure out a good way to actually map responses without losing a lot of data I would like to preserve. We have… Discussion How to analyze spatial data stored in a non-… 1 Like Handling different length string features a… Hi, I am currently working on a problem where the dataset contains 200+ features (Let's call them the code features, e.g no.of.loops, memoryInst, loadInst, etc and Flags that are used to compile co… Discussion Handling different length string features a… 2 Likes New to Data Science Hi Everybody, I have been studying data Science from last 1.5 years and so far i have complete Data Science in R and working on python. I just anyone to answer me few questions, its just i cant fin… Discussion New to Data Science 1 Like

June 2019

Free Book: Statistics -- New Foundations, Too

This book is intended for busy professionals working with data of any kind: engineers, BI analysts, statisticians, operations research, AI and machine learning professionals, economists, data…

Blog Free Book: Statistics -- New Foundations, Too 7 Likes The Lifecycle of Data

The lifecycle of data travels through six phases:…

Blog The Lifecycle of Data 5 Likes

April 2019

What Negative Kurtosis implies Hi...I am new to data science, I have a dataset and when I am computing kurtosis of the Target Variable I am getting the value as -0.94. What I understand is a high kurtosis implies a Heavy tail of t… Discussion What Negative Kurtosis implies 1 Like Restrictions for split-half testing ? Hello everyone, I am a psychology student about to write my bachelor thesis for which I need to test some questionnaires for split-half reliability (plus Cronbach's Alpha and retest relability). In… Discussion Restrictions for split-half testing ? 1 Like Minimum number of observations per time slic… Is there a minimum number of observations per time slice needed? What happens to the method as the number approaches 1? Discussion Minimum number of observations per time slic… 1 Like Difference between Machine Learning, Data Sci

In this article, I clarify the various roles of the data scientist, and how data science compares and overlaps with related fields such as machine learning, deep learning, AI, statistics, IoT,…

Blog Difference between Machine Learning, Data Sci 108 Likes

January 2019

Visualisation of train and test error I am working on Digit Recogniser and after training the fully connected model with 3 CNN layers and 2 dense network layers with rely and softmax activation functions, getting below curve.Screen%20Sh… Discussion Visualisation of train and test error 2 Likes The Math Required for Machine Learning

This article was written by Harsh Sikka. This version is a summary of the original article.…

Blog The Math Required for Machine Learning 2 Likes 5 Predictions about Data Science, Machine Lea

Summary: Here are our 5 predictions for data science, machine learning, and AI for 2019. We also take a look back at last year’s predictions to see how we…

Blog 5 Predictions about Data Science, Machine Lea 6 Likes Statistics cheatsheet Hi All, Pearson Correlation, Spearman Correlation, Normal distribution, Binomial distribution, Poisson distribution, one-sample tests of hypothesis, two-sample tests of hypothesis, ANOVA, nonparamet… Discussion Statistics cheatsheet 3 Likes Use of Data Profiling Tools to Increase Accu… I am not a Data Scientist, although I do have an intermediate-level understanding of AI / ML. I am curious as to whether commercial or open source data profiling tools might be used to discover pat… Discussion Use of Data Profiling Tools to Increase Accu… 1 Like Transitioning to Data Science from Aerospace… Hello, I am transitioning to Data Science after being an aerospace engineer for about 10 years. I am getting a masters in CS at Georgia Tech and am going to concentrate on statistics, algorithms and… Discussion Transitioning to Data Science from Aerospace… 2 Likes

November 2018

From academia to data science in healthcare:… I’m transitioning from almost a decade of academic bench research (B.S. in neuroscience), publications, and advanced statistical models (SPSS, SAS proc mixed). My goal is to do scientific analyses in… Discussion From academia to data science in healthcare:… 2 Likes How to diagnose if there is a group problem? How to diagnose if there is a group problem? Hi, imagine Internet network. As a user you have a router, that is connected to some internet service provider node. Usually, more than one router (user)… Discussion How to diagnose if there is a group problem? 1 Like Can i use regression for multi ( Scenario) i… use case : 1 . A B C D ------ > Y A F G H ------> Y A B F C ------> Y B C F I --------> Y But all should be done in single model by any means… Discussion Can i use regression for multi ( Scenario) i… 1 Like