| 摘要 |
Methods and systems of achieving contextual ad serving, without the need for this expansive infrastructure of storing every possible hosting URL, and ensuring always-current page context by evaluating the context of the hosting page/URL in real-time, for every ad impression. This is achievable by reversing the model by identifying the corpus of all terms relevant to the available ad inventory (i.e. a selective set of terms) rather than attempting to evaluate the corpus of all terms residing in the hosting page/URL.
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