Explanation of AUC ROC metric
@shan4224 wrote: Hi.. In a recent article in AV the following points were mentioned while discussing AUC-ROC.It will be appreciated, if these points are further explained with example. For a model...
View ArticleIn-time and Out-of-time validations
@shan4224 wrote: Hi.. What is in-time and out-of-time validations ? Are these validation techniques specific to different situations. What are the possible ways to perform in-time and out-of-time...
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Variable Importance in Inputs that caused a shift in the output variable
@sharathdhamodaran wrote: I am working on an interesting problem of finding some causes in the measurement shift of the output variable by correlating some of the input variables in the dataset. I am...
View ArticleRegression and k-fold values python
@amandeepsharma89 wrote: Hello everyone,I am very new to the ML field and just started to get my hand dirty by applying some techniques. I am learning by doing and reading stuff as and when things...
View ArticleGraph / Network analytics, topological data analysis
@madhavpr wrote: Hi everyone, This is my first post in the forum. I'm a (former) research engineer in satellite communications who's looking for a career transition to data science. I am a good...
View ArticleSuggest some cool ML applications in Computer Vision / Image Processing
@jalFaizy wrote: I'm interested in finding out some cool applications to work on in computer vision. Any ideas? Posts: 2 Participants: 2 Read full topic
View ArticleIncrease accuracy of predicting True Negatives (Minority class)
@Akash_Haldankar wrote: I wanted to know which methods would be useful to increase the accuracy of the minority class in binary classification. I've heard about resampling,weighing etc can anyone...
View ArticleExplanation of GBM pseudocode
@shan4224 wrote: Hi.. In a recent article the pseudo code of GBM is described as follows : Initialize the outcome Iterate from 1 to total number of trees2.1 Update the weights for targets based on...
View ArticleDifference in coord_cartesian and scale_y_continuous
@harry wrote: I am currently trying to plot a boxplot using a ggplot2 package of R. I am plotting a factor variable on the x-axis and continuous variable on the y-axis. I have used two type of layer...
View ArticleWhy in null hypothesis we take only single value?
@sid100158 wrote: I am studying about hypothesis testing in which there are two types of hypothesis one is null hypothesis and other is alternative hypothesis. null - the parameter in which we are...
View ArticleIs there a 100% chance if null hypothesis is true then parameter must be true
@sid100158 wrote: I am currently studying about hypothesis generation while studying it I came across two type of hypothesis generation one is null hypothesis and other is alternative hypothesis.I...
View ArticleNeed help on Python
@dada_kishore wrote: Hi, This might be a very naive question but appreciate if anyone could help me on this.I wanted to learn python but I'm confused how to start with like should I install anaconda...
View ArticleAdvantages of One-Hot-Coding for GBM or XGBoost
@Aarshay wrote: Hi AVians, Many people are confused with this topic (including me) and I would like to discuss this further. The issue is that people say that tree-based models have the capability to...
View ArticleHow to be a consultant Data Scientist?
@saubhik wrote: Hi all, This is my first post in this forum. I am a Master's student in Quantitative Economics, interested in making a career in data science/analytics. I was wondering of making some...
View ArticleHackathon Private LeaderBoard Score
@gau2112 wrote: I was practicing one of previous hackathons mini-data hack. I am getting my score on public leaderboard. So I don't know whether I have improved or not from my last week's performance...
View ArticleBuilding models using split date
@shaw38 wrote: Hi everyone! I'm new to Data Science and this community. I have metrics(say, Lines of Code), concerning a project that lasted for 15 years=Jan 2000-Oct 2015. I also have a 'date' column...
View ArticleSAS vs SAP Functional as a career choice
@mzaidmech wrote: I am a Btech ( Mech) , with 2 years of exp in Functional Testing and I am confused choosing b/w SAP functional module( PP, APO,PLM ) or SAS as a career path.Could you please...
View ArticleAnalytics Interview Question
@amrita4friends wrote: Hi Everyone, Can you please help me in answering one question : Suppose there is a departmental store with four brunches for eg: Big Bazaar has four stores. Total sales from...
View ArticleDocument Classification
@Akash_Haldankar wrote: Can anybody suggest good learning materials for Text/Document classification. I want to start from scratch Posts: 13 Participants: 3 Read full topic
View ArticleHow to extarct hours and minutes from the factor time varaible
@raghava_r4u wrote: Hello All , Greetings!!! I am working on employee data in R-studio , check in and check out is the variables Date i got separately i done format with thatI got the 2 varaible class...
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