Abstract: A game server generates a parallel-reality game that users may interact with in the real-world. The game server receives user information as users interact with game content. The game server includes a content marketplace that manages the exchange value of additional content items. The content marketplace matches additional game content with users playing the game based on the exchange value of the additional content items and user information. To do so, the content marketplace determines a propensity score for each additional content item quantifying a likelihood the user will interact with the additional content item while interacting with content in the parallel-reality game. The content marketplace provides the additional content item to the user's client device for display in the parallel-reality game based on the propensity score.

Abstract: A circuit screening system including a target circuit under test receiving a first testing signal in a first period and a second testing signal in a second period; and a clock generating circuit providing a clock signal to the target circuit under test, the clock signal triggering the target circuit under test to receive the first testing signal in the first period and the second testing signal in the second period; the clock signal having a first profile and a second profile in the first period and the second period, respectively, and the first profile and the second profile having a phase difference.