Google improves search quality through several methods, including user data analysis, experimentation, and relevance. By identifying relevant results using IS4 (information satisfaction version 4) and user interactions, Google can enhance its search results continuously [3]. Running small experiments helps Google assess user reactions, facilitating iterative improvements [2]. 

Additionally, Google conducts ablation experiments to assess the impact of different ranking elements on search traffic. These experiments measure how changes affect user engagement and the overall quality of results [8]. The search ads quality team also aims to align ads with user needs to retain users and generate consistent revenue [6].

How does Google improve search quality?

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