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Featured Discussions

Recommendation system evaluation

I have created a recommendation system using KNN, is there any way to evaluate/validate the system?

Started by Smule SingerLatest Reply

Statistical significance match with multi-variables

I need a test to match ratios of stable isotope proportions from one sample to another.  In particular lead, with 4 stable isotopes and zin…

Started by Guy ArchibaldLatest Reply

Scanned documents OCR data cleaning

Hi! I am reading data from scanned medical documents (provider Notes) using Pytesseract OCR. The resultant data has some noise and misspell…

Started by shafiqa iqbalLatest Reply

Discussions Replies Latest Activity

Question about the big O notation

We all know that exponential functions grow faster than polynomials. Let us consider the following function: f(n) = n^a ⋅ (log n)^b ⋅ (log…

Started by Vincent Granville

1 15 hours ago
Reply by Vincent Granville

Recommendation system evaluation

I have created a recommendation system using KNN, is there any way to evaluate/validate the system?

Started by Smule Singer

2 18 hours ago
Reply by Smule Singer

Moments of Order Statistics

Started by Vincent Granville

1 19 hours ago
Reply by Vincent Granville

Statistical significance match with multi-variables

I need a test to match ratios of stable isotope proportions from one sample to another.  In particular lead, with 4 stable isotopes and zin…

Started by Guy Archibald

0 21 hours ago

Traffic/commute data and processing related question

Hello All, I am very very new to big data. I am exploring a commercial solution to traffic/congestion problem. To that effect, I am looking…

Started by R Zakai

1 yesterday
Reply by Justin Burruss

Scanned documents OCR data cleaning

Hi! I am reading data from scanned medical documents (provider Notes) using Pytesseract OCR. The resultant data has some noise and misspell…

Started by shafiqa iqbal

0 yesterday

Data science audio book for layperson

Please suggest an audio book for data science for a beginner with less stats, less linear algebra and almost no programming background.

Started by Shamit Bhattacharya

1 yesterday
Reply by Ray Estevez

Unrelated dimensions with common target value

The problem is we have many unrelated dimensions with common target value. We want to build a formula that predicts this target variable (c…

Started by Alexander Fruman

0 May 19

Advanced big data algorithms

Recently, I have finished my book on probabilistic data structures and noticed that even they are used almost in every well-known product t…

Started by Andrii Gakhov

0 May 15

DS career advice for experienced MBA with marketing analytics focus?

I have an MBA in Marketing (U of Minnesota), 20+ years' marketing experience in CPG, an independent consultant for the past 7 years. I have…

Started by John L Franklin

2 May 12
Reply by John L Franklin

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