ELI5: Explain Like I'm 5

Algorithm engineering

Algorithm engineering is the process of designing and improving computer programs that solve problems. Algorithms are like recipes that tell a computer what to do step by step in order to find a solution to a problem.

Imagine you are making a peanut butter and jelly sandwich. The algorithm for making a sandwich would include steps such as getting bread, spreading peanut butter and jelly on it, and putting the slices together.

Now, imagine you want to make a sandwich in the fastest possible way. This is where algorithm engineering comes in. You would need to create a new algorithm that reduces the number of steps or combines some steps into one. For example, instead of getting two separate jars for peanut butter and jelly, you could use a jar that has both.

Similarly, in computer science, an algorithm can be improved by making it faster, more efficient, or more accurate. Algorithm engineers use math, coding, and experimentation to create or improve algorithms.

For instance, imagine you are designing an algorithm for searching for a specific word on a webpage. Your first idea might be to search every letter on the page until you find the word you are looking for. However, if the word appears at the beginning of the page, your algorithm would waste time searching the rest of the page unnecessarily. So, you could improve your algorithm by searching only the first few letters of each word until you find the one you are looking for.

In summary, algorithm engineering involves designing and refining computer programs to solve problems by breaking them down into small, manageable steps, finding ways to optimize those steps, and testing the program to make sure it works correctly.