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Published in

Towards Data Science

·Jun 27, 2021

An Approach for Choosing Number of Clusters for K-Means

The suggested approach considers the common trade-off between the inner-distances and the number of clusters- and automatically choose the number of clusters — When we use clustering algorithms, choosing the number of clusters is always a challenging task. While there are some existing approaches that can help with this task, they are usually being used separately in order to take the decision. …

Data Science

4 min read

An Approach for Choosing Number of Clusters for K-Means
An Approach for Choosing Number of Clusters for K-Means
Data Science

4 min read


Published in

Towards Data Science

·Jan 20, 2020

Time Based Cross Validation

What happens when our data is not a time-series, but still have a time dimension which is very important? This is a Python solution for time-based cross-validation with all required inputs and an output matches scikit-learn methods. — Training and evaluating machine learning models usually require a training set and a test set. In most cases, train and test splitting is done randomly by taking 20% of the data as test data, unseen by the model and using the rest for training.

Crossvalidation

4 min read

Time Based Cross Validation
Time Based Cross Validation
Crossvalidation

4 min read


Published in

Towards Data Science

·Sep 10, 2019

Delivery Date Estimation

Technical challenges you can face when dealing with time-related and dynamically changing environments. — At Dell, we do our best to provide our customers with an excellent experience. This also applies to meeting our product delivery deadlines. Providing the customer with an accurate estimated delivery date is not easy in a complex supply chain. Supply chain teams in large organizations can be large and…

Machine Learning

5 min read

Delivery Date Estimation
Delivery Date Estimation
Machine Learning

5 min read

Or Herman-Saffar

Or Herman-Saffar

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Data Scientist @ Dell

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