Translating relevance scores to probabilities for contextual advertising.
Proceedings of the 18th ACM conference on Information and knowledge management(2009)
摘要
Information retrieval systems conventionally assess document relevance using the bag of words model. Consequently, relevance scores of documents retrieved for different queries are often difficult to compare, as they are computed on different (or even disjoint) sets of textual features. Many tasks, such as federation of search results or global thresholding of relevance scores, require that scores be globally comparable. To achieve this, in this paper we propose methods for non-monotonic transformation of relevance scores into probabilities for a contextual advertising selection engine that uses a vector space model. The calibration of the raw scores is based on historical click data.
更多查看译文
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络