Recursive queries in PostgreSQL
Walking tree-structured data in PostgreSQL.
All Notes
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Mean Absolute Error
The average absolute difference between predictions and labels — less sensitive to outliers than RMSE.
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ML Regression
Notes from Machine Learning: Regression by University of Washington on Coursera.
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Root Mean-Squared Error
A regression metric that penalises large errors.
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Hyperplane
a subspace where the dimension is one less than the ambient space
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Machine Learning Foundations: A Case Study Approach
Notes from Coursera's Machine Learning Foundations: A Case Study Approach by Emily Fox and Carlos Guestrin
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Principal Component Analysis
a technique for reducing the dimensionality of data
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Dijkstra's Shortest Path Algorithm
An elegant algorithm for finding the shortest path between nodes in a graph.
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Computational Investing Part I (Coursera)
Coursera Verified Certificates, License GKNAYZY4TH, October 2013
Full course write up available here
Notes
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Statistics (Udacity - st095)
Notes from Statistics (st095) by Udacity