This document discusses discrete math topics related to Pinterest including graph theory, sorting algorithms, and search engines. Graph theory and sorting are used to organize and connect pins, people, pictures, and keywords. Search engines utilize categories, keywords and other metadata to find relevant pins for users.
Linear search is a simple algorithm that checks each item in a collection one by one to find a match. It has complexity of O(n). Binary search is faster with complexity of O(log n) but requires the collection to be sorted. It works by repeatedly dividing the search range in half and checking the middle element to determine the range to search next until the target value is found or ruled out.
Pinterest uses graph theory to link keywords and pins. It connects pictures and content related to topics like recipes. In graph theory, graphs are used to represent relationships between objects. A graph contains vertices connected by edges. Graphs can be directed, with edges running in one direction, or undirected, with no direction assigned to edges. Graph theory is studied in discrete mathematics and has applications in fields like social networks and computing.
Pinterest is a social media platform that allows users to share images and videos by pinning them to boards. People can browse pins using keyword searches to find things in categories they are interested in, such as saving items they want to purchase or sharing recipes. Pinterest uses graph theory and sorting algorithms to connect pins to keywords and categories and recommend related pins to users based on their interests and search history.
This document discusses discrete math topics related to Pinterest including graph theory, sorting algorithms, and search engines. Graph theory and sorting are used to organize and connect pins, people, pictures, and keywords. Search engines utilize categories, keywords and other metadata to find relevant pins for users.
Linear search is a simple algorithm that checks each item in a collection one by one to find a match. It has complexity of O(n). Binary search is faster with complexity of O(log n) but requires the collection to be sorted. It works by repeatedly dividing the search range in half and checking the middle element to determine the range to search next until the target value is found or ruled out.
Pinterest uses graph theory to link keywords and pins. It connects pictures and content related to topics like recipes. In graph theory, graphs are used to represent relationships between objects. A graph contains vertices connected by edges. Graphs can be directed, with edges running in one direction, or undirected, with no direction assigned to edges. Graph theory is studied in discrete mathematics and has applications in fields like social networks and computing.
Pinterest is a social media platform that allows users to share images and videos by pinning them to boards. People can browse pins using keyword searches to find things in categories they are interested in, such as saving items they want to purchase or sharing recipes. Pinterest uses graph theory and sorting algorithms to connect pins to keywords and categories and recommend related pins to users based on their interests and search history.