Nikit Begwani
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Diversity driven Query Rewriting in Search Advertising Open
Retrieving keywords (bidwords) with the same intent as query, referred to as close variant keywords, is of prime importance for effective targeted search advertising. For head and torso search queries, sponsored search engines use a huge r…
Learning From Weights: A Cost-Sensitive Approach For Ad Retrieval Open
Retrieval models such as CLSM is trained on click-through data which treats each clicked query-document pair as equivalent. While training on click-through data is reasonable, this paper argues that it is sub-optimal because of its noisy a…