contentselection
Content selection is the process of choosing which items of content to present to a user or audience from a larger pool of candidates. It is a central component of digital platforms such as news aggregators, social networks, streaming services, and search engines, where the goal is to surface material that is relevant, engaging, and timely while obeying system constraints.
Common approaches combine various filtering and ranking techniques. Rule-based filters apply explicit criteria; collaborative filtering uses
Inputs to content selection typically include user signals (clicks, dwell time, feedback), item metadata (topics, popularity,
Evaluation of content selection systems uses offline metrics (precision, recall, nDCG, MAP) and online methods (A/B
Applications span news feeds, video and music recommendations, product suggestions in e-commerce, and personalized search results.