Persistence 贵在坚持
It does not matter how slowly you go as long as you do not stop. 譬如为山,未成一篑,止,吾止也;譬如平地,虽覆一篑,进,吾往也。—— Confucius《论语》:子罕篇
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Algorithm

Set with Range Sums using Splay Tree

A splay tree is a self-balancing binary search tree. It performs opera

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AI

Introduction to Feature Engineering

Feature engineering is a crucial step in the process of predictive modeling. It involves the transformation of a given feature, with the objective of reducing the modeling error for a given target.

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Introduction to Feature Engineering Introduction to Feature Engineering
Feature engineering is a crucial step in the process of predictive modeling. It involves the transformation of a given feature, with the objective of reducing the modeling error for a given target.
2021-04-04
A Matrix-Factorization-Based Recommendation System A Matrix-Factorization-Based Recommendation System
A simple matrix-factorization-based recommender using gradient descent.
2020-11-22
Set with Range Sums using Splay Tree Set with Range Sums using Splay Tree
A splay tree is a self-balancing binary search tree. It performs operations such as insertion, look-up and removal in O(
2020-09-12
Git Upstreams & Submodules Git Upstreams & Submodules
Keep track of repo without fork and manage child repos with submodules
2020-08-22
Does A* always return an optimal path? Does A* always return an optimal path?
A* is a static path search algorithm which is used to find the shortest path from the source (S) to the goal (G) from a
2020-08-15