Why is the error term considered to be of mean Zero in linear regression?
@NSS wrote: I was studying some mathematics about linear regression and I came across this. If we denote the variable we are trying to predict as YY and our covariates as XX, we may assume that there...
View ArticleWhy does the rare words have more weight in Inverse Document Frequency...
@syed.danish wrote: Hi,I am going through the Term Frequency and Inverse Document Frequency representations used in bag of words technique in sklearn, There are two kind of representation that are...
View ArticleBridge school of managements phone program
@amitdash320 wrote: Hi AllI have done my btech in IT but working in a private bank as sales manager for assets. Now I want to switch my career to analytics. After doing some rnd I found bridge school...
View ArticleNew IIM vs Praxis Business School
@Achal07 wrote: I have worked for 1 year in IT consulting. I was planning on doing an MBA . In between I got interested in analytics and for the past 3 months, I have been doing some courses on stats...
View ArticleARMA Modelling of Real Time Data
@aish wrote: What should be done if the order of ARMA was not able to find from the Autocorrelation and Partial Autocorrelation? Posts: 1 Participants: 1 Read full topic
View ArticleStatistical Modelling in R
@anujkharat wrote: Thanks for the help regarding BQL I want help for statistical modelling in R packages, methodology and explanation will be helpful Posts: 2 Participants: 2 Read full topic
View ArticleHow to determine bias and variance for an infinite training data set?
@shashwat.2014 wrote: Hi everyone, I was going through some questions on machine learning, and got stuck on one of them. I hope I would be able to get an answer from the community members. A training...
View ArticleHow to get in the field?
@gokulahd wrote: Being a UG candidate in civil engineering . is it difficult to get into analytic field. as i'm currenlty pre final year. Already i'm following up study paths for a data scientist....
View ArticleSplitting the Data in KFold CV according to label
@ravi_6767 wrote: Hi all,I was going through the documentation of KFold CV in sklearn and following structure is used for implementing it : class sklearn.cross_validation.KFold(n, n_folds=3,...
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Using ? in swirl (R programming) is showing error
@Beginner wrote: Screenshot (42).png1920x1080 143 KB I tried to use proxy settings , remove my internet connection which are few solutions i checked in internet but they are not of any use Posts: 1...
View ArticleClaim Rejection Classification Problem
@mithi_singh wrote: Hi,I am trying to solve a classification problem. Dependent variable is Claim Rejected(Yes/No)There are various independent variables like age on claim,claim amount,education...
View ArticleResources for recommendation engine
@jalFaizy wrote: Could someone point to any resource for machine learning for recommendation systems? Posts: 1 Participants: 1 Read full topic
View ArticleCHAID/CART Pre Requisites, Usage and Guidelines to be followed
@canchib wrote: Is it advisable to use Classification Tree techniques (CHAID / CART) when the class proportions is highly skewed. For e.g. Class A is 98% of the base and Class B is only 2% of the...
View ArticleAccessing MongoDB data to build data science models
@ank_dsm wrote: I am trying to use monary in python as a faster way of accessing mongodb data. Unfortunately I am not able to install monary in python windows. I am having a conda installation in my...
View ArticleTransforming observational crossectional informational data into probabilities?
@remimollicone wrote: Hello I have datasets of crossectional data about observational data. I would like to use mutual information technique (KL) which work with probabilities. Does someone know if it...
View ArticleCentral Limit Theorem
@B.Rabbit wrote: Hello People, I'm doing the Inferential statistics course in Udacity. I theoretically understand the Central Limit theorem, but I'm unable to associate any story to it. So my...
View ArticleCareer Switch from IT to Analytics
@ashishjain1292 wrote: Hi, I am currently working in Oracle. I have close to two years of experience in Oracle Business Intelligence domain which includes creating reports, dashboards, data modeling...
View ArticleHow do you score equities based on multiple recommendations and target prices
@hypeatia wrote: Hi folks, I have been working on an investing platform for the last year. It's in beta, going live soon but there are some additional features that are to be incorporated. One of the...
View ArticleWhy can't the t-distribution exceed standard normal distribution?
@B.Rabbit wrote: Hello People,I'm doing the Inferential statistics course in Udacity. I do not quite unedrstand why the t-distribution graph can never exceed the Standard normal distribution. Though I...
View ArticleWhere can I find labeled twitter or facebook data
@XiaoMu wrote: I try to predict the label of Facebook or twitter data as politics, culture, entertainment or others. But I do not have any labeled corpus or labeled data. Would you please tell me that...
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