The disclosure includes a system for mapping tokens to images to improve user queries for images. User queries, electronic documents with known relevance to each of the user queries, and a set of tokens are received by the system. The user queries and the electronic documents are mapped to the set of tokens by measuring an effectiveness of each token and electronic document combination based on a retrievalperformance metric. Search tokens for the electronic documents from the set of tokens are identified based on the mapping. The search tokens are output for each user query. The system advantageously retrieves documents for any token dictionary and directly optimizes image retrieval.
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Li, Yuan and Sapp, Benjamin, "MAPPING TOKENS TO IMAGES", Technical Disclosure Commons, (February 03, 2016)