Relevance Feedback and Query Expansion
The problem of a pure keyword matching approach is that the systems can’t handle synonymy issue. For example, you might search for “python” meaning the progr...
Algorithm
Solving Latin Squares as Constraint Satisfaction Problems using Backtracking Search with Heuristics
A Latin square is an n x n grid filled with n different symbols (commonly numbers 1 to n), each appearing exactly once in every row and every column.
Scheduling
A CPU scheduler is an operating system module that decides which process in the ready queue is allocated a CPU. It checks all of the tasks in the ready queue...
Redlock: Distributed Lock Manager with Redis
A couple years ago, I discovered an issue caused by a race condition that occured in the backend application I was maintaining. So I implemented a simple dis...
Timsort
Most programmers would be familiar with some fundamental sorting algorithms such as bubble sort, selection sort, insertion sort, and merge sort. Then which a...