Cumulative gain refers to a metric used in data analysis to measure the performance of a predictive model or ranking algorithm. It is particularly useful in evaluating the effectiveness of search engine optimization (SEO) strategies.

In the context of SEO, cumulative gain measures the incremental impact of optimizing a website's content and structure on its search engine rankings. It signifies the cumulative improvement in visibility and organic traffic that a website gains as a result of implementing SEO techniques.

When it comes to search engine rankings, the goal is to increase a website's visibility and attract more organic traffic from search engine results pages (SERPs). Implementing SEO strategies, such as research, on-page optimization, and link building, can help a website improve its visibility and attract more visitors.

Cumulative gain quantifies the effectiveness of these SEO efforts. It compares the performance of a website before and after implementing SEO techniques and calculates the incremental gain in organic traffic and visibility.

The formula to calculate cumulative gain involves plotting the cumulative number of clicks or impressions for a website against the number of documents or pages analyzed. By using this formula, you can determine the overall impact of your SEO efforts and assess the effectiveness of different optimization strategies.

In summary, cumulative gain is a crucial metric in SEO analysis that measures the cumulative improvement in visibility and organic traffic resulting from implementing SEO techniques. By monitoring and analyzing cumulative gain, website owners and SEO professionals can assess the effectiveness of their optimization efforts and make informed decisions to enhance their online presence.